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Entry version 97 (26 Feb 2020)
Sequence version 1 (01 May 1999)
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Protein

Inner kinetochore subunit sim4

Gene

sim4

Organism
Schizosaccharomyces pombe (strain 972 / ATCC 24843) (Fission yeast)
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

Component of the kinetochore, a multiprotein complex that assembles on centromeric DNA and attaches chromosomes to spindle microtubules, mediating chromosome segregation and sister chromatid segregation during meiosis and mitosis. Component of the inner kinetochore constitutive centromere-associated network (CCAN), which serves as a structural platform for outer kinetochore assembly.2 Publications

<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 - Biological processi

  • cell division Source: UniProtKB-KW
  • kinetochore assembly Source: PomBase
  • mitotic sister chromatid segregation Source: PomBase

<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

Biological processCell cycle, Cell division, Mitosis

<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:
Inner kinetochore subunit sim4
Alternative name(s):
CENP-K homolog
Constitutive centromere-associated network protein sim4
Silencing in the middle of the centromere protein 4
<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:sim4
ORF Names:SPBC18E5.03c
<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>OrganismiSchizosaccharomyces pombe (strain 972 / ATCC 24843) (Fission yeast)
<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 identifieri284812 [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 lineageiEukaryotaFungiDikaryaAscomycotaTaphrinomycotinaSchizosaccharomycetesSchizosaccharomycetalesSchizosaccharomycetaceaeSchizosaccharomyces
<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
  • UP000002485 <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 II

Organism-specific databases

Eukaryotic Pathogen Database Resources

More...
EuPathDBi
FungiDB:SPBC18E5.03c

Schizosaccharomyces pombe database

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PomBasei
SPBC18E5.03c sim4

<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

Extracellular region or secreted Cytosol Plasma membrane Cell wall Cytoskeleton Vacuole Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte & Seán O’Donoghue; Source: COMPARTMENTS

Keywords - Cellular componenti

Centromere, Chromosome, Nucleus

<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 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00000977611 – 277Inner kinetochore subunit sim4Add BLAST277

Proteomic databases

MaxQB - The MaxQuant DataBase

More...
MaxQBi
O94494

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

More...
PaxDbi
O94494

PRoteomics IDEntifications database

More...
PRIDEi
O94494

<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 inner kinetochore constitutive centromere-associated network (CCAN) (also known as central kinetochore Sim4 complex in fission yeast), which is composed of at least cnl2, cnp3, cnp20, fta1, fta2, fta3, fta4, fta6, fta7, mal2, mhf1, mhf2, mis6, mis15, mis17, sim4 and wip1 (PubMed:16079914).

Interacts with mis6 and dad1 (PubMed:12719471, PubMed:16079914).

2 Publications

<p>This subsection of the '<a href="http://www.uniprot.org/help/interaction%5Fsection%27">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="http://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated on a monthly basis. Each binary interaction is displayed on a separate line.<p><a href='/help/binary_interactions' target='_top'>More...</a></p>Binary interactionsi

WithEntry#Exp.IntActNotes
P872275EBI-1148540,EBI-1148555

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGrid)

More...
BioGridi
277323, 23 interactors

Protein interaction database and analysis system

More...
IntActi
O94494, 1 interactor

STRING: functional protein association networks

More...
STRINGi
4896.SPBC18E5.03c.1

<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

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SMRi
O94494

Database of comparative protein structure models

More...
ModBasei
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

Coiled coil

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and domains' section denotes the positions of regions of coiled coil within the protein.<p><a href='/help/coiled' target='_top'>More...</a></p>Coiled coili96 – 138Sequence analysisAdd BLAST43

<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 CENP-K/MCM22 family.Curated

Keywords - Domaini

Coiled coil

Phylogenomic databases

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

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HOGENOMi
CLU_1001702_0_0_1

InParanoid: Eukaryotic Ortholog Groups

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InParanoidi
O94494

KEGG Orthology (KO)

More...
KOi
K11698

Identification of Orthologs from Complete Genome Data

More...
OMAi
FANINQS

Database for complete collections of gene phylogenies

More...
PhylomeDBi
O94494

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR020993 Centromere_CenpK

The PANTHER Classification System

More...
PANTHERi
PTHR14401 PTHR14401, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF11802 CENP-K, 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>Sequencei

<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.

O94494-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MNSENASLFR NILNDTENLV QPLTQDESRL ALFESLVQSD QLLVEKIEKW
60 70 80 90 100
EKKVSKFTEN SKSEKRKLQL ELFQEIIDLK KCIAFKPIIG KNAIDNNISD
110 120 130 140 150
LKKNLHSNKK LEAVLKEELH QIKKFSSDLQ SLKSSMGERQ KQQAAMSRRG
160 170 180 190 200
KKSIIHSAII QEKERYEKES QELFTFLDGF LDEHAPSLLE GAQASIDKNR
210 220 230 240 250
PGKNQPSLNF ENISKKDLTE EFKQVIENLM NNSIIPGSPY IEVKNERIVS
260 270
FLVLASLCTV DPQDPSKVKL IPFSDEI
Length:277
Mass (Da):31,730
Last modified:May 1, 1999 - v1
<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:i6BFD01C3415C6520
GO

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
CU329671 Genomic DNA Translation: CAA22663.1

Protein sequence database of the Protein Information Resource

More...
PIRi
T39754

NCBI Reference Sequences

More...
RefSeqi
NP_595849.1, NM_001021753.2

Genome annotation databases

Ensembl fungal genome annotation project

More...
EnsemblFungii
SPBC18E5.03c.1; SPBC18E5.03c.1:pep; SPBC18E5.03c

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
2540804

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
spo:SPBC18E5.03c

<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

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CU329671 Genomic DNA Translation: CAA22663.1
PIRiT39754
RefSeqiNP_595849.1, NM_001021753.2

3D structure databases

SMRiO94494
ModBaseiSearch...

Protein-protein interaction databases

BioGridi277323, 23 interactors
IntActiO94494, 1 interactor
STRINGi4896.SPBC18E5.03c.1

Proteomic databases

MaxQBiO94494
PaxDbiO94494
PRIDEiO94494

Genome annotation databases

EnsemblFungiiSPBC18E5.03c.1; SPBC18E5.03c.1:pep; SPBC18E5.03c
GeneIDi2540804
KEGGispo:SPBC18E5.03c

Organism-specific databases

EuPathDBiFungiDB:SPBC18E5.03c
PomBaseiSPBC18E5.03c sim4

Phylogenomic databases

HOGENOMiCLU_1001702_0_0_1
InParanoidiO94494
KOiK11698
OMAiFANINQS
PhylomeDBiO94494

Miscellaneous databases

Protein Ontology

More...
PROi
PR:O94494

Family and domain databases

InterProiView protein in InterPro
IPR020993 Centromere_CenpK
PANTHERiPTHR14401 PTHR14401, 1 hit
PfamiView protein in Pfam
PF11802 CENP-K, 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 nameiCENPK_SCHPO
<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: O94494
<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: April 13, 2004
Last sequence update: May 1, 1999
Last modified: February 26, 2020
This is version 97 of the entry and version 1 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 programFungal Protein Annotation Program

<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

Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
  2. Schizosaccharomyces pombe
    Schizosaccharomyces pombe: entries and gene names
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