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Entry version 157 (02 Jun 2021)
Sequence version 2 (23 Jan 2007)
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Protein

Protein S100-B

Gene

S100b

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

Weakly binds calcium but binds zinc very tightly-distinct binding sites with different affinities exist for both ions on each monomer. Physiological concentrations of potassium ion antagonize the binding of both divalent cations, especially affecting high-affinity calcium-binding sites. Binds to and initiates the activation of STK38 by releasing autoinhibitory intramolecular interactions within the kinase. Interaction with AGER after myocardial infarction may play a role in myocyte apoptosis by activating ERK1/2 and p53/TP53 signaling. Could assist ATAD3A cytoplasmic processing, preventing aggregation and favoring mitochondrial localization. May mediate calcium-dependent regulation on many physiological processes by interacting with other proteins, such as TPR-containing proteins, and modulating their activity (By similarity).

By similarity

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section specifies the position(s) of the calcium-binding region(s) within the protein. One common calcium-binding motif is the EF-hand, but other calcium-binding motifs also exist.<p><a href='/help/ca_bind' target='_top'>More...</a></p>Calcium bindingi19 – 321; low affinityAdd BLAST14
Calcium bindingi62 – 732; high affinityAdd BLAST12

<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

GO - Biological processi

<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

LigandCalcium, Metal-binding, Zinc

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-MMU-445989, TAK1 activates NFkB by phosphorylation and activation of IKKs complex
R-MMU-879415, Advanced glycosylation endproduct receptor signaling
R-MMU-933542, TRAF6 mediated NF-kB activation

<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:
Protein S100-B
Alternative name(s):
S-100 protein beta chain
S-100 protein subunit beta
S100 calcium-binding protein B
<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:S100b
<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>OrganismiMus musculus (Mouse)
<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 identifieri10090 [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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaMyomorphaMuroideaMuridaeMurinaeMusMus
<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
  • UP000000589 <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 10

Organism-specific databases

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

More...
MGIi
MGI:98217, S100b

<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

Cytoplasm, 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 <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 methionineiRemovedBy similarity
<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_00001439672 – 92Protein S100-BAdd BLAST91

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-acetylserineBy similarity1

Keywords - PTMi

Acetylation

Proteomic databases

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

More...
PaxDbi
P50114

PeptideAtlas

More...
PeptideAtlasi
P50114

PRoteomics IDEntifications database

More...
PRIDEi
P50114

ProteomicsDB: a multi-organism proteome resource

More...
ProteomicsDBi
255430

PTM databases

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

More...
PhosphoSitePlusi
P50114

<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

Although predominant among the water-soluble brain proteins, S100 is also found in a variety of other tissues.

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
ENSMUSG00000033208, Expressed in cochlea and 222 other tissues

Genevisible search portal to normalized and curated expression data from Genevestigator

More...
Genevisiblei
P50114, 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%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

Dimer of either two alpha chains, or two beta chains, or one alpha and one beta chain. The S100B dimer binds two molecules of STK38.

Interacts with CACYBP in a calcium-dependent manner.

Interacts with ATAD3A; this interaction probably occurs in the cytosol prior to ATAD3A mitochondrial targeting.

Interacts with S100A6. The S100B dimer interacts with two molecules of CAPZA1.

Interacts with AGER.

Interacts with PPP5C (via TPR repeats); the interaction is calcium-dependent and modulates PPP5C activity (By similarity).

By similarity

GO - Molecular functioni

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...
BioGRIDi
203058, 5 interactors

Protein interaction database and analysis system

More...
IntActi
P50114, 2 interactors

Molecular INTeraction database

More...
MINTi
P50114

STRING: functional protein association networks

More...
STRINGi
10090.ENSMUSP00000047968

Miscellaneous databases

RNAct, Protein-RNA interaction predictions for model organisms.

More...
RNActi
P50114, 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

Biological Magnetic Resonance Data Bank

More...
BMRBi
P50114

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

More...
SMRi
P50114

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

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>Domaini13 – 48EF-hand 1PROSITE-ProRule annotationAdd BLAST36
Domaini49 – 84EF-hand 2PROSITE-ProRule annotationAdd BLAST36

<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 S-100 family.Curated

Keywords - Domaini

Repeat

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG502S4HJ, Eukaryota

Ensembl GeneTree

More...
GeneTreei
ENSGT00940000161997

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_138624_2_0_1

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P50114

Identification of Orthologs from Complete Genome Data

More...
OMAi
AFHQYSG

Database of Orthologous Groups

More...
OrthoDBi
1574989at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P50114

TreeFam database of animal gene trees

More...
TreeFami
TF332727

Family and domain databases

Conserved Domains Database

More...
CDDi
cd05027, S-100B, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR011992, EF-hand-dom_pair
IPR018247, EF_Hand_1_Ca_BS
IPR002048, EF_hand_dom
IPR028481, S100-B
IPR001751, S100/CaBP-9k_CS
IPR013787, S100_Ca-bd_sub

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00036, EF-hand_1, 1 hit
PF01023, S_100, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00054, EFh, 1 hit
SM01394, S_100, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF47473, SSF47473, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00018, EF_HAND_1, 1 hit
PS50222, EF_HAND_2, 1 hit
PS00303, S100_CABP, 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.

<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.

P50114-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MSELEKAMVA LIDVFHQYSG REGDKHKLKK SELKELINNE LSHFLEEIKE
60 70 80 90
QEVVDKVMET LDEDGDGECD FQEFMAFVAM VTTACHEFFE HE
Length:92
Mass (Da):10,728
Last modified:January 23, 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:i43815AC212A81DD0
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
L22144 Unassigned DNA Translation: AAA03075.1
BC061178 mRNA Translation: AAH61178.1

The Consensus CDS (CCDS) project

More...
CCDSi
CCDS35943.1

Protein sequence database of the Protein Information Resource

More...
PIRi
A48015

NCBI Reference Sequences

More...
RefSeqi
NP_033141.1, NM_009115.3

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...
Ensembli
ENSMUST00000036387; ENSMUSP00000047968; ENSMUSG00000033208

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
20203

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
mmu:20203

UCSC genome browser

More...
UCSCi
uc007fuc.2, mouse

<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
L22144 Unassigned DNA Translation: AAA03075.1
BC061178 mRNA Translation: AAH61178.1
CCDSiCCDS35943.1
PIRiA48015
RefSeqiNP_033141.1, NM_009115.3

3D structure databases

BMRBiP50114
SMRiP50114
ModBaseiSearch...

Protein-protein interaction databases

BioGRIDi203058, 5 interactors
IntActiP50114, 2 interactors
MINTiP50114
STRINGi10090.ENSMUSP00000047968

PTM databases

PhosphoSitePlusiP50114

Proteomic databases

PaxDbiP50114
PeptideAtlasiP50114
PRIDEiP50114
ProteomicsDBi255430

Protocols and materials databases

Antibodypedia a portal for validated antibodies

More...
Antibodypediai
3474, 1722 antibodies

The DNASU plasmid repository

More...
DNASUi
20203

Genome annotation databases

EnsembliENSMUST00000036387; ENSMUSP00000047968; ENSMUSG00000033208
GeneIDi20203
KEGGimmu:20203
UCSCiuc007fuc.2, mouse

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
6285
MGIiMGI:98217, S100b

Phylogenomic databases

eggNOGiENOG502S4HJ, Eukaryota
GeneTreeiENSGT00940000161997
HOGENOMiCLU_138624_2_0_1
InParanoidiP50114
OMAiAFHQYSG
OrthoDBi1574989at2759
PhylomeDBiP50114
TreeFamiTF332727

Enzyme and pathway databases

ReactomeiR-MMU-445989, TAK1 activates NFkB by phosphorylation and activation of IKKs complex
R-MMU-879415, Advanced glycosylation endproduct receptor signaling
R-MMU-933542, TRAF6 mediated NF-kB activation

Miscellaneous databases

BioGRID ORCS database of CRISPR phenotype screens

More...
BioGRID-ORCSi
20203, 2 hits in 53 CRISPR screens

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

More...
ChiTaRSi
S100b, mouse

Protein Ontology

More...
PROi
PR:P50114
RNActiP50114, protein

The Stanford Online Universal Resource for Clones and ESTs

More...
SOURCEi
Search...

Gene expression databases

BgeeiENSMUSG00000033208, Expressed in cochlea and 222 other tissues
GenevisibleiP50114, MM

Family and domain databases

CDDicd05027, S-100B, 1 hit
InterProiView protein in InterPro
IPR011992, EF-hand-dom_pair
IPR018247, EF_Hand_1_Ca_BS
IPR002048, EF_hand_dom
IPR028481, S100-B
IPR001751, S100/CaBP-9k_CS
IPR013787, S100_Ca-bd_sub
PfamiView protein in Pfam
PF00036, EF-hand_1, 1 hit
PF01023, S_100, 1 hit
SMARTiView protein in SMART
SM00054, EFh, 1 hit
SM01394, S_100, 1 hit
SUPFAMiSSF47473, SSF47473, 1 hit
PROSITEiView protein in PROSITE
PS00018, EF_HAND_1, 1 hit
PS50222, EF_HAND_2, 1 hit
PS00303, S100_CABP, 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 nameiS100B_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: P50114
<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: October 1, 1996
Last sequence update: January 23, 2007
Last modified: June 2, 2021
This is version 157 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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