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UniProtKB - Q3UMR5 (MCU_MOUSE)

Entry version 117 (29 Sep 2021)
Sequence version 2 (03 Apr 2007)
Previous versions | rss
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Protein

Calcium uniporter protein, mitochondrial

Gene

Mcu

Organism
Mus musculus (Mouse)
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

Mitochondrial inner membrane calcium uniporter that mediates calcium uptake into mitochondria (PubMed:21685886, PubMed:23900286, PubMed:24212091).

Constitutes the pore-forming and calcium-conducting subunit of the uniporter complex (uniplex) (By similarity).

Activity is regulated by MICU1 and MICU2 (By similarity).

At low Ca2+ levels MCU activity is down-regulated by MICU1 and MICU2; at higher Ca2+ levels MICU1 increases MCU activity (By similarity).

Mitochondrial calcium homeostasis plays key roles in cellular physiology and regulates cell bioenergetics, cytoplasmic calcium signals and activation of cell death pathways (By similarity).

Involved in buffering the amplitude of systolic calcium rises in cardiomyocytes (By similarity).

While dispensable for baseline homeostatic cardiac function, acts as a key regulator of short-term mitochondrial calcium loading underlying a 'fight-or-flight' response during acute stress: acts by mediating a rapid increase of mitochondrial calcium in pacemaker cells (PubMed:26119742, PubMed:26119731, PubMed:25603276).

Participates in mitochondrial permeability transition during ischemia-reperfusion injury (PubMed:26119731).

Regulates glucose-dependent insulin secretion in pancreatic beta-cells by regulating mitochondrial calcium uptake (By similarity).

Mitochondrial calcium uptake in skeletal muscle cells is involved in muscle size in adults (PubMed:25732818).

Regulates synaptic vesicle endocytosis kinetics in central nerve terminal (PubMed:26644474).

Involved in antigen processing and presentation (PubMed:25251370).

By similarity9 Publications

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section describes regulatory mechanisms for enzymes, transporters or microbial transcription factors, and reports the components which regulate (by activation or inhibition) the reaction.<p><a href='/help/activity_regulation' target='_top'>More...</a></p>Activity regulationi

Inhibited by ruthenium red or its derivative Ru360.By similarity

<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 functionCalcium channel, Ion channel
Biological processCalcium transport, Ion transport, Transport
LigandCalcium

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...Reactomei		R-MMU-8949215, Mitochondrial calcium ion transport
R-MMU-8949664, Processing of SMDT1

Protein family/group databases

Transport Classification Database

More...TCDBi		1.A.77.1.1, the mg(2+)/ca(2+) uniporter (mcu) family

<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_and_taxonomy_section">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:
Calcium uniporter protein, mitochondrialCurated
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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:McuImported
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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>OrganismiMus musculus (Mouse)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 identifieri10090 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 › Glires › Rodentia › Myomorpha › Muroidea › Muridae › Murinae › Mus › Mus
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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
  • UP000000589 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">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 10

Organism-specific databases

Mouse genome database (MGD) from Mouse Genome Informatics (MGI)

More...MGIi		MGI:3026965, Mcu

Eukaryotic Pathogen, Vector and Host Database Resources

More...VEuPathDBi		HostDB:ENSMUSG00000009647

<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

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'Subcellular location'</a> section describes the subcellular compartment where each non-membrane region of a membrane-spanning protein is found.<p><a href='/help/topo_dom' target='_top'>More...</a></p>Topological domaini50 – 232Mitochondrial matrixBy similarityAdd BLAST183
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'Subcellular location'</a> section describes the extent of a membrane-spanning region of the protein. It denotes the presence of both alpha-helical transmembrane regions and the membrane spanning regions of beta-barrel transmembrane proteins.<p><a href='/help/transmem' target='_top'>More...</a></p>Transmembranei233 – 256HelicalSequence analysisAdd BLAST24
Topological domaini257 – 264Mitochondrial intermembraneBy similarity8
Transmembranei265 – 282HelicalSequence analysisAdd BLAST18
Topological domaini283 – 350Mitochondrial matrixBy similarityAdd BLAST68

Keywords - Cellular componenti

Membrane, Mitochondrion, Mitochondrion inner membrane

<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

<p>This subsection of the 'Pathology and Biotech' section describes the in vivo effects caused by ablation of the gene (or one or more transcripts) coding for the protein described in the entry. This includes gene knockout and knockdown, provided experiments have been performed in the context of a whole organism or a specific tissue, and not at the single-cell level.<p><a href='/help/disruption_phenotype' target='_top'>More...</a></p>Disruption phenotypei

No visible phenotype (PubMed:24212091, PubMed:26057074). Although slightly smaller, mice are grossly normal. Only minor alterations in basal energetics are observed. Cells show a strong reduction, but not a complete absence, of mitochondrial matrix calcium. The skeletal muscles exhibit alterations in the phosphorylation and activity of pyruvate dehydrogenase and mice show defects in ability to perform strenuous work. Mitochondria lack evidence for calcium-induced permeability transition pore (PTP) opening (PubMed:24212091). Mitochondria from mutant mouse heart muscle have impaired Ca2+ uptake and reduced Ca2+ levels in the mitochondrial matrix; still, mutant mice have apparently normal heart function and display no cardiac defects (PubMed:26057074). Conditional mutant mice with cardiomyocyte-specific deletion of Mcu in adults display no overt baseline phenotype and are protected against mitochondrial calcium overload by preventing the activation of the mitochondrial permeability transition pore (PubMed:26119742, PubMed:26119731). Mice however lack contractile responsiveness to acute stress and 'fight-or-flight' response: they produce mitochondria refractory to acute calcium uptake, with impaired ATP production and inhibited mitochondrial permeability transition pore opening upon acute calcium challenge (PubMed:26119742, PubMed:26119731).4 Publications

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/manual/pathology_and_biotech_section">'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>Mutagenesisi251R → W: Strongly reduces calcium channel activity; when associated with V-256. 1 Publication1
Mutagenesisi256E → V: Strongly reduces calcium channel activity; when associated with W-251. 1 Publication1

<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 transit peptide.<p><a href='/help/transit' target='_top'>More...</a></p>Transit peptidei1 – 49MitochondrionSequence analysisAdd BLAST49
<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_000028297750 – 350Calcium uniporter protein, mitochondrialAdd BLAST301

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 residuei56Phosphoserine; by CaMK2By similarity1
Modified residuei91Phosphoserine; by CaMK2By similarity1
Modified residuei331N6-acetyllysineCombined sources1

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">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

Phosphorylation by CaMK2 in heart leads to increased MCU current. The regulation of MCU by CaMK2 is however subject to discussion: another group was unable to reproduce these results. Phosphorylated on tyrosines by PTK2B/PYK2, promoting oligomerization.By similarity

Keywords - PTMi

Acetylation, Phosphoprotein

Proteomic databases

Encyclopedia of Proteome Dynamics

More...EPDi		Q3UMR5

jPOST - Japan Proteome Standard Repository/Database

More...jPOSTi		Q3UMR5

MaxQB - The MaxQuant DataBase

More...MaxQBi		Q3UMR5

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

More...PaxDbi		Q3UMR5

PeptideAtlas

More...PeptideAtlasi		Q3UMR5

PRoteomics IDEntifications database

More...PRIDEi		Q3UMR5

ProteomicsDB: a multi-organism proteome resource

More...ProteomicsDBi		252754 [Q3UMR5-1]
252755 [Q3UMR5-2]

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...iPTMneti		Q3UMR5

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

More...PhosphoSitePlusi		Q3UMR5

SwissPalm database of S-palmitoylation events

More...SwissPalmi		Q3UMR5

<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

<p>This subsection of the 'Expression' section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms. By default, the information is derived from experiments at the mRNA level, unless specified 'at protein level'.<br></br>Examples: <a href="http://www.uniprot.org/uniprot/P92958#expression">P92958</a>, <a href="http://www.uniprot.org/uniprot/Q8TDN4#expression">Q8TDN4</a>, <a href="http://www.uniprot.org/uniprot/O14734#expression">O14734</a><p><a href='/help/tissue_specificity' target='_top'>More...</a></p>Tissue specificityi

Detected in heart muscle (at protein level) (PubMed:26057074). Expressed in skeletal muscle, heart, kidney, liver, brain, lung, white fat and spleen.4 Publications

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...Bgeei		ENSMUSG00000009647, Expressed in intestine and 271 other tissues

Genevisible search portal to normalized and curated expression data from Genevestigator

More...Genevisiblei		Q3UMR5, MM

<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_section">'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_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Component of the uniplex complex, composed of MCU, MCUB, MICU1, MICU2 and EMRE/SMDT1 (By similarity). Heterooligomer with CCDC109B/MCUB; this inhibits channel activity (PubMed:23900286). Homooligomer. Homotetramer (PubMed:23900286).

Interacts with MICU1; MICU1 acts as an essential regulator for MCU.

Interacts with MCUR1. Interactions with MICU1 and MCUR1 are mutually exclusive.

Interacts with MICU2 (By similarity).

Interacts with SLC25A23 (By similarity).

By similarity2 Publications

<p>This subsection of the '<a href="http://www.uniprot.org/help/interaction_section">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

GO - Molecular functioni

Complete GO annotation on QuickGO ...

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...BioGRIDi		229684, 7 interactors

Protein interaction database and analysis system

More...IntActi		Q3UMR5, 4 interactors

Molecular INTeraction database

More...MINTi		Q3UMR5

STRING: functional protein association networks

More...STRINGi		10090.ENSMUSP00000020312

Miscellaneous databases

RNAct, Protein-RNA interaction predictions for model organisms.

More...RNActi		Q3UMR5, 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		Q3UMR5

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

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni74 – 164N-terminal MCU domainBy similarityAdd BLAST91
Regioni215 – 233Outer juxtamembrane helix (OJMH)By similarityAdd BLAST19
Regioni282 – 291Inner juxtamembrane helix (IJMH)By similarity10

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 coili191 – 220Sequence analysisAdd BLAST30
Coiled coili310 – 338Sequence analysisAdd BLAST29

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>Motifi260 – 263DXXEBy similarity4

<p>This subsection of the 'Family and domains' section provides general information on the biological role of a domain. The term 'domain' is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>Domaini

The N-terminal domain is required for efficient Ca2+ uptake and for interaction with MCUR1. It is not required for targeting to the mitochondria, oligomerization, interaction with MICU1 and MICU2, or assembly of the uniplex complex.By similarity
Forms a well-packed pentamer with an overall cylindrical shape. The inner core of the pentamer is formed with the second transmembrane region and the second coiled-coil region: while the transmembrane regions pack into a five-helix bundle having a largely polar pore across the membrane, the coiled-coil outside the membrane forms a pentamer with a hydrophobic core. The inner core is wrapped by the first transmembrane region through contacts between the first and the second transmembrane regions. The second transmembrane is followed by the inner juxtamembrane region (IJMH) that orients at a wide angle relative to the second transmembrane. The two core domains are held together on the periphery by the outer juxtamembrane helix (OJMH).By similarity
The critical DXXE motif connecting the transmembrane regions forms a pentameric barrel that constitutes the mouth of the pore. Inside the barrel, two acidic residues are in position to form two carboxylate rings. In absence of SMDT1/EMRE regulator, the calcium ions cannot exit the channel, suggesting that SMDT1/EMRE-binding induces conformational rearrangements to allow calcium to exit.By similarity

<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 MCU (TC 1.A.77) family. [View classification]Curated

Keywords - Domaini

Coiled coil, Transit peptide, Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		KOG2966, Eukaryota

Ensembl GeneTree

More...GeneTreei		ENSGT00940000157528

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_056554_0_0_1

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		Q3UMR5

Identification of Orthologs from Complete Genome Data

More...OMAi		DDIYVEY

Database of Orthologous Groups

More...OrthoDBi		1076768at2759

Database for complete collections of gene phylogenies

More...PhylomeDBi		Q3UMR5

TreeFam database of animal gene trees

More...TreeFami		TF314435

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR006769, MCU_C
IPR039055, MCU_fam

The PANTHER Classification System

More...PANTHERi		PTHR13462, PTHR13462, 1 hit

Pfam protein domain database

More...Pfami		View protein in Pfam
PF04678, MCU, 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_length">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_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">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_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">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.<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 1 potential isoform that is computationally mapped.Show allAlign All

Isoform 1 (identifier: Q3UMR5-1) [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
MAAAAGRSLL LLLCSRGGGG GAGGCGALTA GCFPGLGVSR HRPHQQHRTA 
        60         70         80         90        100
HQRPASWQSV GAAYCSTVVP SDDVTVVYQN GLPVISVRLP SRRERCQFTL 
       110        120        130        140        150
KPISDSVGVF LRQLQEEDRG IDRVAIYSPD GVRVAASTGI DLLLLDDFKL 
       160        170        180        190        200
VINDLTYHVR PPKRDLLSHE DAATLNDVKT LVQQLYTTLC IEQHQLNKER 
       210        220        230        240        250
ELVERLEDLK QQLAPLEKVR IEISRKAEKR TTLVLWGGLA YMATQFGILA 
       260        270        280        290        300
RLTWWEYSWD IMEPVTYFIT YGSAMAMYAY FVMTRQEYVY PEARDRQYLL 
       310        320        330        340        350
FFHKGAKKSR FDLEKYNQLK DAIAQAEMDL KRLRDPLQVH LPLRQIGEKE
Length:350
Mass (Da):39,682
Last modified:April 3, 2007 - v2
<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:iFB3089AADF7FB2E3
GO
Isoform 2 (identifier: Q3UMR5-2) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     1-149: Missing.
     150-164: LVINDLTYHVRPPKR → MILRPKQLFSAFTKQ

Show »
Length:201
Mass (Da):23,902
Checksum:i4A2D6D6293C7C586
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 is 1 potential isoform mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
E0CYL3E0CYL3_MOUSE
Calcium uniporter protein, mitochon...
Mcu Ccdc109a
53Annotation 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>

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_0242641 – 149Missing in isoform 2. 2 PublicationsAdd BLAST149
Alternative sequenceiVSP_024265150 – 164LVIND…RPPKR → MILRPKQLFSAFTKQ in isoform 2. 2 PublicationsAdd BLAST15

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
AK144727 mRNA Translation: BAE26033.1
AK161322 mRNA Translation: BAE36322.1
AC155940 Genomic DNA No translation available.
AC022699 Genomic DNA No translation available.
BC139254 mRNA Translation: AAI39255.1
BC139257 mRNA Translation: AAI39258.1

The Consensus CDS (CCDS) project

More...CCDSi		CCDS23866.2 [Q3UMR5-1]

NCBI Reference Sequences

More...RefSeqi		NP_001028431.2, NM_001033259.4 [Q3UMR5-1]

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...Ensembli		ENSMUST00000009791; ENSMUSP00000009791; ENSMUSG00000009647 [Q3UMR5-2]
ENSMUST00000020312; ENSMUSP00000020312; ENSMUSG00000009647 [Q3UMR5-1]

Database of genes from NCBI RefSeq genomes

More...GeneIDi		215999

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		mmu:215999

UCSC genome browser

More...UCSCi		uc007fds.3, mouse [Q3UMR5-2]
uc007fdt.3, mouse [Q3UMR5-1]

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

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AK144727 mRNA Translation: BAE26033.1
AK161322 mRNA Translation: BAE36322.1
AC155940 Genomic DNA No translation available.
AC022699 Genomic DNA No translation available.
BC139254 mRNA Translation: AAI39255.1
BC139257 mRNA Translation: AAI39258.1
CCDSiCCDS23866.2 [Q3UMR5-1]
RefSeqiNP_001028431.2, NM_001033259.4 [Q3UMR5-1]

3D structure databases

SMRiQ3UMR5
ModBaseiSearch...

Protein-protein interaction databases

BioGRIDi229684, 7 interactors
IntActiQ3UMR5, 4 interactors
MINTiQ3UMR5
STRINGi10090.ENSMUSP00000020312

Protein family/group databases

TCDBi1.A.77.1.1, the mg(2+)/ca(2+) uniporter (mcu) family

PTM databases

iPTMnetiQ3UMR5
PhosphoSitePlusiQ3UMR5
SwissPalmiQ3UMR5

Proteomic databases

EPDiQ3UMR5
jPOSTiQ3UMR5
MaxQBiQ3UMR5
PaxDbiQ3UMR5
PeptideAtlasiQ3UMR5
PRIDEiQ3UMR5
ProteomicsDBi252754 [Q3UMR5-1]
252755 [Q3UMR5-2]

Protocols and materials databases

Antibodypedia a portal for validated antibodies

More...Antibodypediai		3091, 81 antibodies

Genome annotation databases

EnsembliENSMUST00000009791; ENSMUSP00000009791; ENSMUSG00000009647 [Q3UMR5-2]
ENSMUST00000020312; ENSMUSP00000020312; ENSMUSG00000009647 [Q3UMR5-1]
GeneIDi215999
KEGGimmu:215999
UCSCiuc007fds.3, mouse [Q3UMR5-2]
uc007fdt.3, mouse [Q3UMR5-1]

Organism-specific databases

Comparative Toxicogenomics Database

More...CTDi		90550
MGIiMGI:3026965, Mcu
VEuPathDBiHostDB:ENSMUSG00000009647

Phylogenomic databases

eggNOGiKOG2966, Eukaryota
GeneTreeiENSGT00940000157528
HOGENOMiCLU_056554_0_0_1
InParanoidiQ3UMR5
OMAiDDIYVEY
OrthoDBi1076768at2759
PhylomeDBiQ3UMR5
TreeFamiTF314435

Enzyme and pathway databases

ReactomeiR-MMU-8949215, Mitochondrial calcium ion transport
R-MMU-8949664, Processing of SMDT1

Miscellaneous databases

BioGRID ORCS database of CRISPR phenotype screens

More...BioGRID-ORCSi		215999, 3 hits in 62 CRISPR screens

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

More...ChiTaRSi		Mcu, mouse

Protein Ontology

More...PROi		PR:Q3UMR5
RNActiQ3UMR5, protein

The Stanford Online Universal Resource for Clones and ESTs

More...SOURCEi		Search...

Gene expression databases

BgeeiENSMUSG00000009647, Expressed in intestine and 271 other tissues
GenevisibleiQ3UMR5, MM

Family and domain databases

InterProiView protein in InterPro
IPR006769, MCU_C
IPR039055, MCU_fam
PANTHERiPTHR13462, PTHR13462, 1 hit
PfamiView protein in Pfam
PF04678, MCU, 1 hit

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 nameiMCU_MOUSE
<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: Q3UMR5
Secondary accession number(s): B2RTD1, Q3TTK3
<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_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: April 3, 2007
Last sequence update: April 3, 2007
Last modified: September 29, 2021
This is version 117 of the entry and version 2 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

<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. MGD cross-references
    Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot
  2. SIMILARITY comments
    Index of protein domains and families
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