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- Table of Contents
Facts about Complement component 1 Q subcomponent-binding protein, mitochondrial.
Putative receptor for C1q; specifically binds to the globular"heads" of C1q thus inhibiting C1; may carry out the receptor function by means of a complex with C1qR/CD93. In complex with cytokeratin-1/KRT1 is a high affinity receptor for kininogen- 1/HMWK.
Human | |
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Gene Name: | C1QBP |
Uniprot: | Q07021 |
Entrez: | 708 |
Belongs to: |
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MAM33 family |
C1q globular domain-binding protein; C1QBP; complement component 1 Q subcomponent-binding protein, mitochondrial; complement component 1, q subcomponent binding protein; gC1qBP; GC1q-R protein; gC1qR; gC1Q-R; Glycoprotein gC1qBP; HABP1; HABP1p33; Hyaluronan-binding protein 1; Mitochondrial matrix protein p32; p32; SF2p32; splicing factor SF2-associated protein
Mass (kDA):
31.362 kDA
Human | |
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Location: | 17p13.2 |
Sequence: | 17; NC_000017.11 (5432777..5439155, complement) |
Expressed on cell surface of peripheral blood cells (at protein level); Surface expression is reported for macrophages and monocyte-derived dendritic cells.
Mitochondrion matrix. Nucleus. Cell membrane; Peripheral membrane protein; Extracellular side. Secreted. Cytoplasm. Nucleus, nucleolus. Seems to be predominantly localized to mitochondria. Secreted by activated lymphocytes.
PMID: 8262387 by Honore B., et al. Cloning and expression of a cDNA covering the complete coding region of the P32 subunit of human pre-mRNA splicing factor SF2.
PMID: 8195709 by Ghebrehiwet B., et al. Isolation, cDNA cloning, and overexpression of a 33-kD cell surface glycoprotein that binds to the globular 'heads' of C1q.