C1QBP

Complement component 1, q subcomponent binding protein

PDB rendering based on 1p32.
Available structures
PDB Ortholog search: PDBe, RCSB
Identifiers
Symbols C1QBP ; GC1QBP; HABP1; SF2p32; gC1Q-R; gC1qR; p32
External IDs OMIM: 601269 MGI: 1194505 HomoloGene: 31023 GeneCards: C1QBP Gene
RNA expression pattern
More reference expression data
Orthologs
Species Human Mouse
Entrez 708 12261
Ensembl ENSG00000108561 ENSMUSG00000018446
UniProt Q07021 O35658
RefSeq (mRNA) NM_001212 NM_007573
RefSeq (protein) NP_001203 NP_031599
Location (UCSC) Chr 17:
5.43 – 5.45 Mb
Chr 11:
70.98 – 70.98 Mb
PubMed search

Complement component 1 Q subcomponent-binding protein, mitochondrial is a protein that in humans is encoded by the C1QBP gene.[1][2][3]

The human complement subcomponent C1q associates with C1r and C1s in order to yield the first component of the serum complement system. The protein encoded by this gene is known to bind to the globular heads of C1q molecules and inhibit C1 activation. This protein has also been identified as the p32 subunit of pre-mRNA splicing factor SF2, as well as a hyaluronic acid-binding protein.[3]

Interactions

C1QBP has been shown to interact with Protein kinase D1,[4] BAT2,[5] PRKCD,[4] PKC alpha[4] and Protein kinase Mζ.[4]

References

  1. Deb TB, Datta K (March 1996). "Molecular cloning of human fibroblast hyaluronic acid-binding protein confirms its identity with P-32, a protein co-purified with splicing factor SF2. Hyaluronic acid-binding protein as P-32 protein, co-purified with splicing factor SF2". J Biol Chem 271 (4): 2206–12. doi:10.1074/jbc.271.4.2206. PMID 8567680.
  2. Ghebrehiwet B, Lim BL, Peerschke EI, Willis AC, Reid KB (June 1994). "Isolation, cDNA cloning, and overexpression of a 33-kD cell surface glycoprotein that binds to the globular "heads" of C1q". J Exp Med 179 (6): 1809–21. doi:10.1084/jem.179.6.1809. PMC 2191527. PMID 8195709.
  3. 1 2 "Entrez Gene: C1QBP complement component 1, q subcomponent binding protein".
  4. 1 2 3 4 Storz, P; Hausser A; Link G; Dedio J; Ghebrehiwet B; Pfizenmaier K; Johannes F J (August 2000). "Protein kinase C [micro] is regulated by the multifunctional chaperon protein p32". J. Biol. Chem. (UNITED STATES) 275 (32): 24601–7. doi:10.1074/jbc.M002964200. ISSN 0021-9258. PMID 10831594.
  5. Lehner, Ben; Semple Jennifer I; Brown Stephanie E; Counsell Damian; Campbell R Duncan; Sanderson Christopher M (January 2004). "Analysis of a high-throughput yeast two-hybrid system and its use to predict the function of intracellular proteins encoded within the human MHC class III region". Genomics (United States) 83 (1): 153–67. doi:10.1016/S0888-7543(03)00235-0. ISSN 0888-7543. PMID 14667819.

Further reading


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