Tchem CXCL12 Stromal cell-derived factor 1

Protein Summary

Description

Chemoattractant active on T-lymphocytes and monocytes but not neutrophils. Activates the C-X-C chemokine receptor CXCR4 to induce a rapid and transient rise in the level of intracellular calcium ions and chemotaxis. SDF-1-beta(3-72) and SDF-1-alpha(3-67) show a reduced chemotactic activity. Binding to cell surface proteoglycans seems to inhibit formation of SDF-1-alpha(3-67) and thus to preserve activity on local sites. Also binds to atypical chemokine receptor ACKR3, which activates the beta-arrestin pathway and acts as a scavenger receptor for SDF-1. Binds to the allosteric site (site 2) of integrins and activates integrins ITGAV:ITGB3, ITGA4:ITGB1 and ITGA5:ITGB1 in a CXCR4-independent manner (PubMed:29301984). Acts as a positive regulator of monocyte migration and a negative regulator of monocyte adhesion via the LYN kinase. Stimulates migration of monocytes and T-lymphocytes through its receptors, CXCR4 and ACKR3, and decreases monocyte adherence to surfaces coated with ICAM-1, a ligand for beta-2 integrins. SDF1A/CXCR4 signaling axis inhibits beta-2 integrin LFA-1 mediated adhesion of monocytes to ICAM-1 through LYN kinase. Inhibits CXCR4-mediated infection by T-cell line-adapted HIV-1. Plays a protective role after myocardial infarction. Induces down-regulation and internalization of ACKR3 expressed in various cells. Has several critical functions during embryonic development; required for B-cell lymphopoiesis, myelopoiesis in bone marrow and heart ventricular septum formation. Stimulates the proliferation of bone marrow-derived B-cell progenitors in the presence of IL7 as well as growth of stromal cell-dependent pre-B-cells (By similarity). This antimicrobial gene encodes a stromal cell-derived alpha chemokine member of the intercrine family. The encoded protein functions as the ligand for the G-protein coupled receptor, chemokine (C-X-C motif) receptor 4, and plays a role in many diverse cellular functions, including embryogenesis, immune surveillance, inflammation response, tissue homeostasis, and tumor growth and metastasis. Mutations in this gene are associated with resistance to human immunodeficiency virus type 1 infections. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2014]

Uniprot Accession IDs

• P48061
• B2R4G0
• E7EVL0
• H7BYN8
• Q2L985
• Q2L986
• Q2L988
• Q5IT36
• Q6ICW0
• Q9H554
• SDF-1

Gene Name

• CXCL12

Ensembl ID

• ENST00000343575
• ENSP00000339913
• ENSG00000107562
• ENST00000374426
• ENSP00000363548
• ENST00000374429
• ENSP00000363551
• ENST00000395793
• ENSP00000379139
• ENST00000395794
• ENSP00000379140
• ENST00000395795
• ENSP00000379141

Symbol

• SDF1
• SDF1A
• SDF1B
• IRH
• PBSF
• SDF1
• TLSF
• TPAR1
• SCYB12

Knowledge Table

Most Knowledge About	Knowledge Value (0 to 1 scale)
biological process	1
biological term	1
PubMedID	1
disease perturbation	0.9
disease	0.88

Protein Classes

No PANTHER Classes or DTO Classes found

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: 4557.75   (req: < 5)

Gene RIFs: 1251   (req: <= 3)

Antibodies: 788   (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: 4557.75   (req: >= 5)

Gene RIFs: 1251   (req: > 3)

Antibodies: 788   (req: > 50)

- OR - satisfy the following criterion:

Gene Ontology Terms: 49

Tchem

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

Active Ligands: 23

Tclin

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

Active Drug: 0