Tchem S100B Protein S100-B

Protein Classes

PANTHER Classes

Protein / Signaling Molecule / Protein S100-b

Protein / Calcium-binding Protein / Intracellular Calcium-sensing Protein / Calmodulin / Protein S100-b

Protein Summary

Description

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. The protein encoded by this gene is a member of the S100 family of proteins containing 2 EF-hand calcium-binding motifs. S100 proteins are localized in the cytoplasm and/or nucleus of a wide range of cells, and involved in the regulation of a number of cellular processes such as cell cycle progression and differentiation. S100 genes include at least 13 members which are located as a cluster on chromosome 1q21; however, this gene is located at 21q22.3. This protein may function in Neurite extension, proliferation of melanoma cells, stimulation of Ca2+ fluxes, inhibition of PKC-mediated phosphorylation, astrocytosis and axonal proliferation, and inhibition of microtubule assembly. Chromosomal rearrangements and altered expression of this gene have been implicated in several neurological, neoplastic, and other types of diseases, including Alzheimer's disease, Down's syndrome, epilepsy, amyotrophic lateral sclerosis, melanoma, and type I diabetes. [provided by RefSeq, Jul 2008]

Uniprot Accession IDs

• P04271
• D3DSN6

Gene Name

• S100B

Ensembl ID

• ENST00000291700
• ENSP00000291700
• ENSG00000160307
• ENST00000397648
• ENSP00000380769

Symbol

• NEF
• S100
• S100-B
• S100beta

Knowledge Table

Most Knowledge About	Knowledge Value (0 to 1 scale)
biological term	1
pathway	0.9
protein domain	0.85
biological process	0.79
chemical	0.77

IDG Development Level Summary

Tdark

These are targets about which virtually nothing is known. They do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 3416.04   (req: < 5)

Gene RIFs: 321   (req: <= 3)

Antibodies: 1579   (req: <= 50)

Tbio

These targets do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 3416.04   (req: >= 5)

Gene RIFs: 321   (req: > 3)

Antibodies: 1579   (req: > 50)

- OR - satisfy the following criterion:

Gene Ontology Terms: 26

Tchem

Target has at least one ChEMBL compound with an activity cutoff of < 30 nM - AND - satisfies the preceding conditions

Active Ligand: 0

Tclin

Target has at least one approved drug - AND - satisfies the preceding conditions

Active Drug: 1

Approved Drugs (1)

Explore Approved Drugs

1 – 1 of 1

pentamidine

S100BTchem

Kd: 6

Protein Data Bank (15)

1 – 5 of 15

PDB Structure Id	Ligand	Method	Resolution (Å)	M.W. (kDa)	Pub Year	Title

PDB Structure Id	M.W.	Resolution	Pub Year

Pathways (31)

Reactome (30)

PathwayCommons (1)

Advanced glycosylation endproduct receptor signaling (R-HSA-879415)

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Items per page:

5

1 – 5 of 30

Data Source	Name	Explore in Pharos	Explore in Source
Reactome	Advanced glycosylation endproduct receptor signaling	13 targets	R-HSA-879415
Reactome	Cytokine Signaling in Immune system	922 targets	R-HSA-1280215
Reactome	DDX58/IFIH1-mediated induction of interferon-alpha/beta	77 targets	R-HSA-168928
Reactome	Immune System	2246 targets	R-HSA-168256
Reactome	Innate Immune System	1188 targets	R-HSA-168249

Name	Explore in Pharos	Explore in Source
Advanced glycosylation endproduct receptor signaling	13 targets	R-HSA-879415
Cytokine Signaling in Immune system	922 targets	R-HSA-1280215
DDX58/IFIH1-mediated induction of interferon-alpha/beta	77 targets	R-HSA-168928
Immune System	2246 targets	R-HSA-168256
Innate Immune System	1188 targets	R-HSA-168249

Gene Ontology Terms (33)

Functions (8)

Components (7)

Processes (18)

Items per page:

10

1 – 8 of 8

GO Term	Evidence	Assigned by
calcium-dependent protein binding	Inferred from Direct Assay (IDA)	UniProtKB
protein homodimerization activity	Inferred from Direct Assay (IDA)	UniProtKB
identical protein binding	Inferred from Physical Interaction (IPI)	IntAct
RAGE receptor binding	Inferred from Physical Interaction (IPI)	UniProtKB
S100 protein binding	Inferred from Physical Interaction (IPI)	UniProtKB
tau protein binding	Inferred from Sequence or structural Similarity (ISS)	UniProtKB
zinc ion binding	Inferred from Sequence or structural Similarity (ISS)	UniProtKB
calcium ion binding	Traceable Author Statement (TAS)	ProtInc

Protein-Protein Interactions (296)

Explore Interacting Targets

1 – 10 of 296

• See Interactions on String-DB

MLLT11

Tbio

Novelty: 0.04775712

p_int: 0.998038632

p_ni: 0.000068237

p_wrong: 0.001893131

Score: 0.692

Data Source: BioPlex,STRINGDB

LSM5

Tbio

Novelty: 0.09756098

p_int: 0.986460925

p_ni: 0.003386382

p_wrong: 0.010152693

Score: 0.241

Data Source: BioPlex,STRINGDB

AGER

Tchem

Novelty: 0.00062993

Score: 0.999

Data Source: STRINGDB

FGF2

Tchem

Novelty: 0.00009754

Score: 0.975

Data Source: STRINGDB

APP

Tchem

Novelty: 0.00011446

Score: 0.968

Data Source: STRINGDB

RPS6KA1

Tchem

Family: Kinase

Novelty: 0.00250734

Score: 0.967

Data Source: STRINGDB

HMGB1

Tbio

Family: TF

Novelty: 0.00050302

Score: 0.954

Data Source: STRINGDB

CAPZA1

Tbio

Novelty: 0.04371834

Score: 0.95

Data Source: Reactome,STRINGDB

STK38

Tbio

Family: Kinase

Novelty: 0.04129184

Score: 0.944

Data Source: STRINGDB

MAPK3

Tchem

Family: Kinase

Novelty: 0.0001911

Score: 0.938

Data Source: STRINGDB

Publication Statistics

PubMed Score  3416.04

PubMed score by year

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PubTator Score  3084.34

PubTator score by year

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Amino Acid Sequence

Residue Counts

Sequence

MSELEKAMVALIDVFHQYSGREGDKHKLKKSELKELINNELSHFLEEIKEQEVVDKVMETLDNDGDGECD

1-70

FQEFMAFVAMVTTACHEFFEHE

70-92

MSELEKAMVALIDVFHQYSGREGDKHKLKKSELKELINNELSHFLEEIKEQEVVDKVMETLDNDGDGECDFQEFMAFVAMVTTACHEFFEHE

Find similar targets by:

Uniprot Keyword

3D-structure
Acetylation
Calcium
Complete proteome
Cytoplasm
Direct protein sequencing
Metal-binding
Nucleus
Reference proteome
Repeat