Bos taurus Gene: C1QA
Summary
InnateDB Gene IDBG-645509.3
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol C1QA
Gene Name Complement C1q subcomponent subunit A
Synonyms
Species Bos taurus
Ensembl Gene ENSBTAG00000007153
Encoded Proteins
Complement C1q subcomponent subunit A
Complement C1q subcomponent subunit A
Protein Structure
Useful resources Stemformatics EHFPI ImmGen
InnateDB Annotation from Orthologs
Summary
[Homo sapiens] C1QA is the A-chain of the C1Q recognition subunit of Complement component 1 (C1), and acts a multimolecular protease that triggers the classical pathway of complement and has a major role in the host defence against pathogens.
[Homo sapiens] C1Q is involved in the modulation of various immune cells such as dendritic cells, platelets, microglia cells and lymphocytes. C1Q has roles in clearance of apoptotic cells as well as a range of cell processes such as differentiation, chemotaxis, aggregation and adhesion, and pathogenesis of neurodegenerative diseases.
[Homo sapiens] C1QA :: C1QB :: C1QC (C1Q) is a versatile innate immune molecule that recognizes an array of self, non-self and altered-self ligands. The broad-spectrum of ligand specificity is facilitated by the modular organization of the heterotrimeric globular region and its ability to change its confirmation.
[Mus musculus] C1qa :: C1qb :: C1qc (C1q) is a versatile innate immune molecule that recognizes an array of self, non-self and altered-self ligands. The broad-spectrum of ligand specificity is facilitated by the modular organization of the heterotrimeric globular region and its ability to change its confirmation.
Entrez Gene
Summary This gene does not have any Entrez summary - the following is the summary from its human ortholog ENSG00000173372:
This gene encodes a major constituent of the human complement subcomponent C1q. C1q associates with C1r and C1s in order to yield the first component of the serum complement system. Deficiency of C1q has been associated with lupus erythematosus and glomerulonephritis. C1q is composed of 18 polypeptide chains: six A-chains, six B-chains, and six C-chains. Each chain contains a collagen-like region located near the N terminus and a C-terminal globular region. The A-, B-, and C-chains are arranged in the order A-C-B on chromosome 1. This gene encodes the A-chain polypeptide of human complement subcomponent C1q. [provided by RefSeq, Jul 2008]
Gene Information
Type Protein coding
Genomic Location Chromosome 2:130792855-130795743
Strand Reverse strand
Band
Transcripts
ENSBTAT00000009415 ENSBTAP00000009415
ENSBTAT00000040146 ENSBTAP00000039925
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 0 experimentally validated interaction(s) in this database.
They are also associated with 25 interaction(s) predicted by orthology.
Predicted by orthology
Total 25 [view]
Gene Ontology

Molecular Function
Accession GO Term
GO:0005515 protein binding
Biological Process
GO:0002376 immune system process
GO:0006958 complement activation, classical pathway
GO:0045087 innate immune response
Cellular Component
GO:0005576 extracellular region
GO:0005581 collagen trimer
GO:0070062 extracellular vesicular exosome
Orthologs
Species
Homo sapiens
Mus musculus
Gene ID
Gene Order
Pathways
NETPATH
REACTOME
Initial triggering of complement pathway
Immune System pathway
Creation of C4 and C2 activators pathway
Classical antibody-mediated complement activation pathway
Complement cascade pathway
Innate Immune System pathway
KEGG
INOH
PID NCI
Pathway Predictions based on Human Orthology Data
NETPATH
REACTOME
Classical antibody-mediated complement activation pathway
Initial triggering of complement pathway
Innate Immune System pathway
Creation of C4 and C2 activators pathway
Immune System pathway
Complement cascade pathway
Innate Immune System pathway
Classical antibody-mediated complement activation pathway
Creation of C4 and C2 activators pathway
Complement cascade pathway
Immune System pathway
Initial triggering of complement pathway
KEGG
Complement and coagulation cascades pathway
Systemic lupus erythematosus pathway
Prion diseases pathway
Staphylococcus aureus infection pathway
Chagas disease (American trypanosomiasis) pathway
Complement and coagulation cascades pathway
Systemic lupus erythematosus pathway
Prion diseases pathway
Staphylococcus aureus infection pathway
Chagas disease (American trypanosomiasis) pathway
INOH
PID NCI
Cross-References
SwissProt
TrEMBL
UniProt Splice Variant
Entrez Gene
UniGene Bt.1577
RefSeq NM_001014945 XM_005203214
HUGO
OMIM
CCDS
HPRD
IMGT
EMBL
GenPept
RNA Seq Atlas