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UniProtKB - P25205 (MCM3_HUMAN)

Entry version 234 (07 Apr 2021)
Sequence version 3 (14 Aug 2001)
Previous versions | rss
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Protein

DNA replication licensing factor MCM3

Gene

MCM3

Organism
Homo sapiens (Human)
Status
Reviewed-Annotation score:

Annotation score:5 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Acts as component of the MCM2-7 complex (MCM complex) which is the putative replicative helicase essential for 'once per cell cycle' DNA replication initiation and elongation in eukaryotic cells. The active ATPase sites in the MCM2-7 ring are formed through the interaction surfaces of two neighboring subunits such that a critical structure of a conserved arginine finger motif is provided in trans relative to the ATP-binding site of the Walker A box of the adjacent subunit. The six ATPase active sites, however, are likely to contribute differentially to the complex helicase activity. Required for DNA replication and cell proliferation.By similarity

Miscellaneous

Early fractionation of eukaryotic MCM proteins yielded a variety of dimeric, trimeric and tetrameric complexes with unclear biological significance. The MCM2-7 hexamer is the proposed physiological active complex.

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes the catalytic activity of an enzyme, i.e. a chemical reaction that the enzyme catalyzes.<p><a href='/help/catalytic_activity' target='_top'>More...</a></p>Catalytic activityi

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes a region in the protein which binds nucleotide phosphates. It always involves more than one amino acid and includes all residues involved in nucleotide-binding.<p><a href='/help/np_bind' target='_top'>More...</a></p>Nucleotide bindingi345 – 352ATPSequence analysis8

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

Complete GO annotation on QuickGO ...

GO - Biological processi

Complete GO annotation on QuickGO ...

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionDNA-binding, Helicase, Hydrolase
Biological processCell cycle, DNA replication
LigandATP-binding, Nucleotide-binding

Enzyme and pathway databases

Pathway Commons web resource for biological pathway data

More...PathwayCommonsi		P25205

Reactome - a knowledgebase of biological pathways and processes

More...Reactomei		R-HSA-176187, Activation of ATR in response to replication stress
R-HSA-176974, Unwinding of DNA
R-HSA-68867, Assembly of the pre-replicative complex
R-HSA-68949, Orc1 removal from chromatin
R-HSA-68962, Activation of the pre-replicative complex
R-HSA-69052, Switching of origins to a post-replicative state

SIGNOR Signaling Network Open Resource

More...SIGNORi		P25205

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
DNA replication licensing factor MCM3 (EC:3.6.4.12)
Alternative name(s):
DNA polymerase alpha holoenzyme-associated protein P1
P1-MCM3
RLF subunit beta
p102
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: 'Name', 'Synonyms', 'Ordered locus names' and 'ORF names'.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:MCM3
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiHomo sapiens (Human)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri9606 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000005640 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes%5Fmanual">proteome</a> can consist of several components.<br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Chromosome 6

Organism-specific databases

Human Gene Nomenclature Database

More...HGNCi		HGNC:6945, MCM3

Online Mendelian Inheritance in Man (OMIM)

More...MIMi		602693, gene

neXtProt; the human protein knowledge platform

More...neXtProti		NX_P25205

Eukaryotic Pathogen, Vector and Host Database Resources

More...VEuPathDBi		HostDB:ENSG00000112118.17

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Keywords - Cellular componenti

Chromosome, Nucleus

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/manual/pathology%5Fand%5Fbiotech%5Fsection">'Pathology and Biotech'</a> section describes the effect of the experimental mutation of one or more amino acid(s) on the biological properties of the protein.<p><a href='/help/mutagen' target='_top'>More...</a></p>Mutagenesisi535S → A: 50% reduction in phosphorylation by ATM or ATR. 1 Publication1

Organism-specific databases

DisGeNET

More...DisGeNETi		4172

Open Targets

More...OpenTargetsi		ENSG00000112118

The Pharmacogenetics and Pharmacogenomics Knowledge Base

More...PharmGKBi		PA30691

Miscellaneous databases

Pharos NIH Druggable Genome Knowledgebase

More...Pharosi		P25205, Tbio

Genetic variation databases

BioMuta curated single-nucleotide variation and disease association database

More...BioMutai		MCM3

Domain mapping of disease mutations (DMDM)

More...DMDMi		19857543

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM / Processing</a> section indicates that the initiator methionine is cleaved from the mature protein.<p><a href='/help/init_met' target='_top'>More...</a></p>Initiator methionineiRemovedCombined sources1 Publication
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00001940932 – 808DNA replication licensing factor MCM3Add BLAST807

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section specifies the position and type of each modified residue excluding <a href="http://www.uniprot.org/manual/lipid">lipids</a>, <a href="http://www.uniprot.org/manual/carbohyd">glycans</a> and <a href="http://www.uniprot.org/manual/crosslnk">protein cross-links</a>.<p><a href='/help/mod_res' target='_top'>More...</a></p>Modified residuei2N-acetylalanineCombined sources1 Publication1
Modified residuei160PhosphoserineCombined sources1
Modified residuei275PhosphoserineCombined sources1
Modified residuei293N6-acetyllysineBy similarity1
Modified residuei535Phosphoserine; by ATM1 Publication1
Modified residuei547N6-acetyllysineBy similarity1
Modified residuei611PhosphoserineCombined sources1
Modified residuei668PhosphoserineCombined sources1
Modified residuei672PhosphoserineCombined sources1
Modified residuei674PhosphothreonineCombined sources1
Modified residuei681PhosphoserineCombined sources1
Modified residuei708PhosphotyrosineCombined sources1
Modified residuei711PhosphoserineCombined sources1
Modified residuei713PhosphothreonineCombined sources1
Modified residuei722PhosphothreonineCombined sources1
Modified residuei725PhosphothreonineCombined sources1
Modified residuei728PhosphoserineBy similarity1
Modified residuei734PhosphoserineBy similarity1

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM/processing</a> section describes post-translational modifications (PTMs). This subsection <strong>complements</strong> the information provided at the sequence level or describes modifications for which <strong>position-specific data is not yet available</strong>.<p><a href='/help/post-translational_modification' target='_top'>More...</a></p>Post-translational modificationi

Acetylated by MCM3AP.2 Publications
O-glycosylated (O-GlcNAcylated), in a cell cycle-dependent manner.1 Publication

Keywords - PTMi

Acetylation, Glycoprotein, Phosphoprotein

Proteomic databases

Encyclopedia of Proteome Dynamics

More...EPDi		P25205

jPOST - Japan Proteome Standard Repository/Database

More...jPOSTi		P25205

MassIVE - Mass Spectrometry Interactive Virtual Environment

More...MassIVEi		P25205

MaxQB - The MaxQuant DataBase

More...MaxQBi		P25205

PaxDb, a database of protein abundance averages across all three domains of life

More...PaxDbi		P25205

PeptideAtlas

More...PeptideAtlasi		P25205

PRoteomics IDEntifications database

More...PRIDEi		P25205

ProteomicsDB: a multi-organism proteome resource

More...ProteomicsDBi		54265 [P25205-1]

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...iPTMneti		P25205

MetOSite database of methionine sulfoxide sites

More...MetOSitei		P25205

Comprehensive resource for the study of protein post-translational modifications (PTMs) in human, mouse and rat.

More...PhosphoSitePlusi		P25205

SwissPalm database of S-palmitoylation events

More...SwissPalmi		P25205

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...Bgeei		ENSG00000112118, Expressed in embryo and 239 other tissues

ExpressionAtlas, Differential and Baseline Expression

More...ExpressionAtlasi		P25205, baseline and differential

Genevisible search portal to normalized and curated expression data from Genevestigator

More...Genevisiblei		P25205, HS

Organism-specific databases

Human Protein Atlas

More...HPAi		ENSG00000112118, Tissue enhanced (lymphoid)

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction%5Fsection">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Component of the MCM2-7 complex (PubMed:16899510, PubMed:17296731). The complex forms a toroidal hexameric ring with the proposed subunit order MCM2-MCM6-MCM4-MCM7-MCM3-MCM5 (PubMed:16899510, PubMed:17296731). Associated with the replication-specific DNA polymerase alpha (By similarity).

Interacts with MCMBP (PubMed:17296731).

Interacts with ANKRD17 (PubMed:23711367).

Interacts with MCM3AP isoform MCM3AP; this interaction leads to MCM3 acetylation (PubMed:9712829, PubMed:11258703, PubMed:12226073).

Component of the CMG helicase complex, composed of the MCM2-7 complex, the GINS complex and CDC45 (By similarity).

By similarity6 Publications

<p>This subsection of the '<a href="http://www.uniprot.org/help/interaction%5Fsection">Interaction</a>' section provides information about binary protein-protein interactions. The data presented in this section are a quality-filtered subset of binary interactions automatically derived from the <a href="https://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated at every <a href="http://www.uniprot.org/help/synchronization">UniProt release</a>.<p><a href='/help/binary_interactions' target='_top'>More...</a></p>Binary interactionsi

Hide details

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...BioGRIDi		110340, 223 interactors

ComplexPortal: manually curated resource of macromolecular complexes

More...ComplexPortali		CPX-2940, MCM complex

CORUM comprehensive resource of mammalian protein complexes

More...CORUMi		P25205

Database of interacting proteins

More...DIPi		DIP-31726N

Protein interaction database and analysis system

More...IntActi		P25205, 90 interactors

Molecular INTeraction database

More...MINTi		P25205

STRING: functional protein association networks

More...STRINGi		9606.ENSP00000480987

Miscellaneous databases

RNAct, Protein-RNA interaction predictions for model organisms.

More...RNActi		P25205, protein

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...SMRi		P25205

Database of comparative protein structure models

More...ModBasei		Search...

Protein Data Bank in Europe - Knowledge Base

More...PDBe-KBi		Search...

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family%5Fand%5Fdomains%5Fsection">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini295 – 502MCMAdd BLAST208

Motif

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a short (usually not more than 20 amino acids) conserved sequence motif of biological significance.<p><a href='/help/motif' target='_top'>More...</a></p>Motifi477 – 480Arginine finger4

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the MCM family.Curated

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		KOG0479, Eukaryota

Ensembl GeneTree

More...GeneTreei		ENSGT01010000222249

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_000995_6_0_1

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		P25205

Identification of Orthologs from Complete Genome Data

More...OMAi		LKSVHYC

Database of Orthologous Groups

More...OrthoDBi		266497at2759

Database for complete collections of gene phylogenies

More...PhylomeDBi		P25205

TreeFam database of animal gene trees

More...TreeFami		TF106459

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR003593, AAA+_ATPase
IPR031327, MCM
IPR008046, Mcm3
IPR018525, MCM_CS
IPR001208, MCM_dom
IPR041562, MCM_lid
IPR027925, MCM_N
IPR033762, MCM_OB
IPR012340, NA-bd_OB-fold
IPR027417, P-loop_NTPase

The PANTHER Classification System

More...PANTHERi		PTHR11630, PTHR11630, 1 hit

Pfam protein domain database

More...Pfami		View protein in Pfam
PF00493, MCM, 1 hit
PF17855, MCM_lid, 1 hit
PF14551, MCM_N, 1 hit
PF17207, MCM_OB, 1 hit

Protein Motif fingerprint database; a protein domain database

More...PRINTSi		PR01657, MCMFAMILY
PR01659, MCMPROTEIN3

Simple Modular Architecture Research Tool; a protein domain database

More...SMARTi		View protein in SMART
SM00382, AAA, 1 hit
SM00350, MCM, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF50249, SSF50249, 1 hit
SSF52540, SSF52540, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS00847, MCM_1, 1 hit
PS50051, MCM_2, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence%5Flength">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequences (2+)i

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

This entry describes 2 <p>This subsection of the 'Sequence' section lists the alternative protein sequences (isoforms) that can be generated from the same gene by a single or by the combination of up to four biological events (alternative promoter usage, alternative splicing, alternative initiation and ribosomal frameshifting). Additionally, this section gives relevant information on each alternative protein isoform. This section is only present in reviewed entries, i.e. in UniProtKB/Swiss-Prot.<p><a href='/help/alternative_products' target='_top'>More...</a></p> isoformsi produced by alternative splicing. AlignAdd to basket

This entry has 2 described isoforms and 3 potential isoforms that are computationally mapped.Show allAlign All

Isoform 1 (identifier: P25205-1) [UniParc]FASTAAdd to basket

This isoform has been chosen as the <div> <p><b>What is the canonical sequence?</b><p><a href='/help/canonical_and_isoforms' target='_top'>More...</a></p>canonicali sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide
        10         20         30         40         50
MAGTVVLDDV ELREAQRDYL DFLDDEEDQG IYQSKVRELI SDNQYRLIVN 
        60         70         80         90        100
VNDLRRKNEK RANRLLNNAF EELVAFQRAL KDFVASIDAT YAKQYEEFYV 
       110        120        130        140        150
GLEGSFGSKH VSPRTLTSCF LSCVVCVEGI VTKCSLVRPK VVRSVHYCPA 
       160        170        180        190        200
TKKTIERRYS DLTTLVAFPS SSVYPTKDEE NNPLETEYGL SVYKDHQTIT 
       210        220        230        240        250
IQEMPEKAPA GQLPRSVDVI LDDDLVDKAK PGDRVQVVGT YRCLPGKKGG 
       260        270        280        290        300
YTSGTFRTVL IACNVKQMSK DAQPSFSAED IAKIKKFSKT RSKDIFDQLA 
       310        320        330        340        350
KSLAPSIHGH DYVKKAILCL LLGGVERDLE NGSHIRGDIN ILLIGDPSVA 
       360        370        380        390        400
KSQLLRYVLC TAPRAIPTTG RGSSGVGLTA AVTTDQETGE RRLEAGAMVL 
       410        420        430        440        450
ADRGVVCIDE FDKMSDMDRT AIHEVMEQGR VTIAKAGIHA RLNARCSVLA 
       460        470        480        490        500
AANPVYGRYD QYKTPMENIG LQDSLLSRFD LLFIMLDQMD PEQDREISDH 
       510        520        530        540        550
VLRMHRYRAP GEQDGDAMPL GSAVDILATD DPNFSQEDQQ DTQIYEKHDN 
       560        570        580        590        600
LLHGTKKKKE KMVSAAFMKK YIHVAKIIKP VLTQESATYI AEEYSRLRSQ 
       610        620        630        640        650
DSMSSDTART SPVTARTLET LIRLATAHAK ARMSKTVDLQ DAEEAVELVQ 
       660        670        680        690        700
YAYFKKVLEK EKKRKKRSED ESETEDEEEK SQEDQEQKRK RRKTRQPDAK 
       710        720        730        740        750
DGDSYDPYDF SDTEEEMPQV HTPKTADSQE TKESQKVELS ESRLKAFKVA 
       760        770        780        790        800
LLDVFREAHA QSIGMNRLTE SINRDSEEPF SSVEIQAALS KMQDDNQVMV 

SEGIIFLI
Length:808
Mass (Da):90,981
Last modified:August 14, 2001 - v3
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:iC967C068B7090558
GO
Isoform 2 (identifier: P25205-2) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     1-1: M → MLPRSPPLPRGNLWWREEFGSFRAGVESSWEPPRDFGGGSSLAAGM

Show »
Length:853
Mass (Da):95,908
Checksum:iE3EFA82D0E088CF1
GO

<p>In eukaryotic reference proteomes, unreviewed entries that are likely to belong to the same gene are computationally mapped, based on gene identifiers from Ensembl, EnsemblGenomes and model organism databases.<p><a href='/help/gene_centric_isoform_mapping' target='_top'>More...</a></p>Computationally mapped potential isoform sequencesi

There are 3 potential isoforms mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
J3KQ69J3KQ69_HUMAN
DNA helicase
MCM3
762Annotation score:

Annotation score:3 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
A0A499FHX9A0A499FHX9_HUMAN
DNA helicase
MCM3
818Annotation score:

Annotation score:3 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
Q7Z6P5Q7Z6P5_HUMAN
DNA replication licensing factor MC...
MCM3
328Annotation score:

Annotation score:1 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.<p><a href='/help/conflict' target='_top'>More...</a></p>Sequence conflicti230 – 231KP → NA in BAA07267 (PubMed:7758114).Curated2

Natural variant

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section describes natural variant(s) of the protein sequence.<p><a href='/help/variant' target='_top'>More...</a></p>Natural variantiVAR_014810105S → G. Corresponds to variant dbSNP:rs2307332Ensembl.1
Natural variantiVAR_014811280D → V1 PublicationCorresponds to variant dbSNP:rs2307329Ensembl.1
Natural variantiVAR_014812287F → L1 PublicationCorresponds to variant dbSNP:rs2307328Ensembl.1
Natural variantiVAR_020516590I → L1 PublicationCorresponds to variant dbSNP:rs17240063Ensembl.1
Natural variantiVAR_020517774R → W1 PublicationCorresponds to variant dbSNP:rs2230239Ensembl.1
Natural variantiVAR_020427777E → K1 PublicationCorresponds to variant dbSNP:rs2230240Ensembl.1

Alternative sequence

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section describes the sequence of naturally occurring alternative protein isoform(s). The changes in the amino acid sequence may be due to alternative splicing, alternative promoter usage, alternative initiation, or ribosomal frameshifting.<p><a href='/help/var_seq' target='_top'>More...</a></p>Alternative sequenceiVSP_0570501M → MLPRSPPLPRGNLWWREEFG SFRAGVESSWEPPRDFGGGS SLAAGM in isoform 2. 1 Publication1

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...EMBLi

GenBank nucleotide sequence database

More...GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...DDBJi
Links Updated
X62153 mRNA Translation: CAA44078.2
D38073 mRNA Translation: BAA07267.1
AK301704 mRNA Translation: BAG63176.1
AY621074 Genomic DNA Translation: AAT27321.1
AL034343 Genomic DNA No translation available.
CH471081 Genomic DNA Translation: EAX04367.1
BC001626 mRNA Translation: AAH01626.1
BC003509 mRNA Translation: AAH03509.2

The Consensus CDS (CCDS) project

More...CCDSi		CCDS4940.2 [P25205-1]

Protein sequence database of the Protein Information Resource

More...PIRi		S62594

NCBI Reference Sequences

More...RefSeqi		NP_001257401.1, NM_001270472.1
NP_002379.3, NM_002388.4 [P25205-1]

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...Ensembli		ENST00000596288; ENSP00000472940; ENSG00000112118 [P25205-1]
ENST00000616552; ENSP00000480987; ENSG00000112118 [P25205-2]

Database of genes from NCBI RefSeq genomes

More...GeneIDi		4172

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		hsa:4172

UCSC genome browser

More...UCSCi		uc003pan.2, human [P25205-1]

Keywords - Coding sequence diversityi

Alternative splicing

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

<p>This subsection of the <a href="http://www.uniprot.org/manual/cross%5Freferences%5Fsection">Cross-references</a> section provides links to various web resources that are relevant for a specific protein.<p><a href='/help/web_resource' target='_top'>More...</a></p>Web resourcesi

NIEHS-SNPs

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X62153 mRNA Translation: CAA44078.2
D38073 mRNA Translation: BAA07267.1
AK301704 mRNA Translation: BAG63176.1
AY621074 Genomic DNA Translation: AAT27321.1
AL034343 Genomic DNA No translation available.
CH471081 Genomic DNA Translation: EAX04367.1
BC001626 mRNA Translation: AAH01626.1
BC003509 mRNA Translation: AAH03509.2
CCDSiCCDS4940.2 [P25205-1]
PIRiS62594
RefSeqiNP_001257401.1, NM_001270472.1
NP_002379.3, NM_002388.4 [P25205-1]

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...PDBei

Protein Data Bank RCSB

More...RCSB PDBi

Protein Data Bank Japan

More...PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
6XTXelectron microscopy3.2931-808[»]
6XTYelectron microscopy6.7731-808[»]
SMRiP25205
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

BioGRIDi110340, 223 interactors
ComplexPortaliCPX-2940, MCM complex
CORUMiP25205
DIPiDIP-31726N
IntActiP25205, 90 interactors
MINTiP25205
STRINGi9606.ENSP00000480987

PTM databases

iPTMnetiP25205
MetOSiteiP25205
PhosphoSitePlusiP25205
SwissPalmiP25205

Genetic variation databases

BioMutaiMCM3
DMDMi19857543

Proteomic databases

EPDiP25205
jPOSTiP25205
MassIVEiP25205
MaxQBiP25205
PaxDbiP25205
PeptideAtlasiP25205
PRIDEiP25205
ProteomicsDBi54265 [P25205-1]

Protocols and materials databases

Antibodypedia a portal for validated antibodies

More...Antibodypediai		1433, 499 antibodies

The DNASU plasmid repository

More...DNASUi		4172

Genome annotation databases

EnsembliENST00000596288; ENSP00000472940; ENSG00000112118 [P25205-1]
ENST00000616552; ENSP00000480987; ENSG00000112118 [P25205-2]
GeneIDi4172
KEGGihsa:4172
UCSCiuc003pan.2, human [P25205-1]

Organism-specific databases

Comparative Toxicogenomics Database

More...CTDi		4172
DisGeNETi4172

GeneCards: human genes, protein and diseases

More...GeneCardsi		MCM3
HGNCiHGNC:6945, MCM3
HPAiENSG00000112118, Tissue enhanced (lymphoid)
MIMi602693, gene
neXtProtiNX_P25205
OpenTargetsiENSG00000112118
PharmGKBiPA30691
VEuPathDBiHostDB:ENSG00000112118.17

GenAtlas: human gene database

More...GenAtlasi		Search...

Phylogenomic databases

eggNOGiKOG0479, Eukaryota
GeneTreeiENSGT01010000222249
HOGENOMiCLU_000995_6_0_1
InParanoidiP25205
OMAiLKSVHYC
OrthoDBi266497at2759
PhylomeDBiP25205
TreeFamiTF106459

Enzyme and pathway databases

PathwayCommonsiP25205
ReactomeiR-HSA-176187, Activation of ATR in response to replication stress
R-HSA-176974, Unwinding of DNA
R-HSA-68867, Assembly of the pre-replicative complex
R-HSA-68949, Orc1 removal from chromatin
R-HSA-68962, Activation of the pre-replicative complex
R-HSA-69052, Switching of origins to a post-replicative state
SIGNORiP25205

Miscellaneous databases

BioGRID ORCS database of CRISPR phenotype screens

More...BioGRID-ORCSi		4172, 710 hits in 977 CRISPR screens

ChiTaRS: a database of human, mouse and fruit fly chimeric transcripts and RNA-sequencing data

More...ChiTaRSi		MCM3, human

The Gene Wiki collection of pages on human genes and proteins

More...GeneWikii		MCM3

Database of phenotypes from RNA interference screens in Drosophila and Homo sapiens

More...GenomeRNAii		4172
PharosiP25205, Tbio

Protein Ontology

More...PROi		PR:P25205
RNActiP25205, protein

The Stanford Online Universal Resource for Clones and ESTs

More...SOURCEi		Search...

Gene expression databases

BgeeiENSG00000112118, Expressed in embryo and 239 other tissues
ExpressionAtlasiP25205, baseline and differential
GenevisibleiP25205, HS

Family and domain databases

InterProiView protein in InterPro
IPR003593, AAA+_ATPase
IPR031327, MCM
IPR008046, Mcm3
IPR018525, MCM_CS
IPR001208, MCM_dom
IPR041562, MCM_lid
IPR027925, MCM_N
IPR033762, MCM_OB
IPR012340, NA-bd_OB-fold
IPR027417, P-loop_NTPase
PANTHERiPTHR11630, PTHR11630, 1 hit
PfamiView protein in Pfam
PF00493, MCM, 1 hit
PF17855, MCM_lid, 1 hit
PF14551, MCM_N, 1 hit
PF17207, MCM_OB, 1 hit
PRINTSiPR01657, MCMFAMILY
PR01659, MCMPROTEIN3
SMARTiView protein in SMART
SM00382, AAA, 1 hit
SM00350, MCM, 1 hit
SUPFAMiSSF50249, SSF50249, 1 hit
SSF52540, SSF52540, 1 hit
PROSITEiView protein in PROSITE
PS00847, MCM_1, 1 hit
PS50051, MCM_2, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...ProtoNeti		Search...

MobiDB: a database of protein disorder and mobility annotations

More...MobiDBi		Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiMCM3_HUMAN
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: P25205
Secondary accession number(s): B4DWW4
, Q92660, Q9BTR3, Q9NUE7
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: May 1, 1992
Last sequence update: August 14, 2001
Last modified: April 7, 2021
This is version 234 of the entry and version 3 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.

<p>This section contains any relevant information that doesn't fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

3D-structure, Direct protein sequencing, Reference proteome

Documents

  1. Human chromosome 6
    Human chromosome 6: entries, gene names and cross-references to MIM
  2. Human entries with genetic variants
    List of human entries with genetic variants
  3. Human variants curated from literature reports
    Index of human variants curated from literature reports
  4. MIM cross-references
    Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot
  5. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  6. SIMILARITY comments
    Index of protein domains and families
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