Free for academic non-profit institutions. Other users need a Commercial license

Aliases for C1QC Gene

Aliases for C1QC Gene

  • Complement Component 1, Q Subcomponent, C Chain 2 3 5
  • Complement Component 1, Q Subcomponent, Gamma Polypeptide 2 3
  • C1QG 3 4
  • C1Q-C 3

External Ids for C1QC Gene

Previous HGNC Symbols for C1QC Gene

  • C1QG

Previous GeneCards Identifiers for C1QC Gene

  • GC01P022842
  • GC01P022970
  • GC01P021214

Summaries for C1QC Gene

Entrez Gene Summary for C1QC Gene

  • 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. A deficiency in 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 C-chain polypeptide of human complement subcomponent C1q. Alternatively spliced transcript variants that encode the same protein have been found for this gene. [provided by RefSeq, Jul 2008]

GeneCards Summary for C1QC Gene

C1QC (Complement Component 1, Q Subcomponent, C Chain) is a Protein Coding gene. Diseases associated with C1QC include c1q deficiency and immunodeficiency due to an early component of complement deficiency. Among its related pathways are Complement and coagulation cascades and Immune System. An important paralog of this gene is COL8A1.

UniProtKB/Swiss-Prot for C1QC Gene

  • C1q associates with the proenzymes C1r and C1s to yield C1, the first component of the serum complement system. The collagen-like regions of C1q interact with the Ca(2+)-dependent C1r(2)C1s(2) proenzyme complex, and efficient activation of C1 takes place on interaction of the globular heads of C1q with the Fc regions of IgG or IgM antibody present in immune complexes.

No data available for Tocris Summary , Gene Wiki entry , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for C1QC Gene

Genomics for C1QC Gene

Regulatory Elements for C1QC Gene

Genomic Location for C1QC Gene

Chromosome:
1
Start:
22,643,625 bp from pter
End:
22,648,110 bp from pter
Size:
4,486 bases
Orientation:
Plus strand

Genomic View for C1QC Gene

Genes around C1QC on UCSC Golden Path with GeneCards custom track

Cytogenetic band:
C1QC Gene in genomic location: bands according to Ensembl, locations according to GeneLoc (and/or Entrez Gene and/or Ensembl if different)
Genomic Location for C1QC Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for C1QC Gene

Proteins for C1QC Gene

  • Protein details for C1QC Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    P02747-C1QC_HUMAN
    Recommended name:
    Complement C1q subcomponent subunit C
    Protein Accession:
    P02747
    Secondary Accessions:
    • Q7Z502
    • Q96DL2
    • Q96H05

    Protein attributes for C1QC Gene

    Size:
    245 amino acids
    Molecular mass:
    25774 Da
    Quaternary structure:
    • C1 is a calcium-dependent trimolecular complex of C1q, R and S in the molar ration of 1:2:2. C1q subcomponent is composed of nine subunits, six of which are disulfide-linked dimers of the A and B chains, and three of which are disulfide-linked dimers of the C chain.

    Three dimensional structures from OCA and Proteopedia for C1QC Gene

neXtProt entry for C1QC Gene

Proteomics data for C1QC Gene at MOPED

Post-translational modifications for C1QC Gene

  • O-linked glycans consist of Glc-Gal disaccharides bound to the oxygen atom of post-translationally added hydroxyl groups.
  • Glycosylation at Lys 75
  • Modification sites at PhosphoSitePlus

Other Protein References for C1QC Gene

Antibody Products

  • R&D Systems Antibodies for C1QC (Complement Component C1qC)

No data available for DME Specific Peptides for C1QC Gene

Domains & Families for C1QC Gene

Gene Families for C1QC Gene

Suggested Antigen Peptide Sequences for C1QC Gene

GenScript: Design optimal peptide antigens:

Graphical View of Domain Structure for InterPro Entry

P02747

UniProtKB/Swiss-Prot:

C1QC_HUMAN :
  • Contains 1 C1q domain.
Domain:
  • Contains 1 C1q domain.
  • Contains 1 collagen-like domain.
genes like me logo Genes that share domains with C1QC: view

Function for C1QC Gene

Molecular function for C1QC Gene

UniProtKB/Swiss-Prot Function:
C1q associates with the proenzymes C1r and C1s to yield C1, the first component of the serum complement system. The collagen-like regions of C1q interact with the Ca(2+)-dependent C1r(2)C1s(2) proenzyme complex, and efficient activation of C1 takes place on interaction of the globular heads of C1q with the Fc regions of IgG or IgM antibody present in immune complexes.
genes like me logo Genes that share phenotypes with C1QC: view

Human Phenotype Ontology for C1QC Gene

HPO Id HPO Name Alternative Ids Definition Synonyms

Animal Model Products

No data available for Enzyme Numbers (IUBMB) , Gene Ontology (GO) - Molecular Function , Animal Models , miRNA , Transcription Factor Targets and HOMER Transcription for C1QC Gene

Localization for C1QC Gene

Subcellular locations from UniProtKB/Swiss-Prot for C1QC Gene

Secreted.

Subcellular locations from

COMPARTMENTS
Jensen Localization Image for C1QC Gene COMPARTMENTS Subcellular localization image for C1QC gene
Compartment Confidence
extracellular 5
nucleus 2
endoplasmic reticulum 1

Gene Ontology (GO) - Cellular Components for C1QC Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005576 extracellular region TAS --
GO:0005581 collagen trimer IEA --
genes like me logo Genes that share ontologies with C1QC: view

Pathways & Interactions for C1QC Gene

genes like me logo Genes that share pathways with C1QC: view

Gene Ontology (GO) - Biological Process for C1QC Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0006955 immune response NAS 9777412
GO:0006956 complement activation TAS --
GO:0006958 complement activation, classical pathway TAS --
GO:0045087 innate immune response IEA,TAS --
genes like me logo Genes that share ontologies with C1QC: view

No data available for SIGNOR curated interactions for C1QC Gene

Drugs & Compounds for C1QC Gene

(26) Drugs for C1QC Gene - From: DrugBank, FDA Approved Drugs, and HMDB

Name Status Disease Links Group Role Mechanism of Action Clinical Trials
Daclizumab Approved, Investigational Pharma Target 96,129
Abciximab Approved Pharma Target 64
Adalimumab Approved Pharma Target 443
Alefacept Approved, Withdrawn Pharma Target 40
alemtuzumab Approved, Investigational Pharma Target Therapeutic Antibodies 302
genes like me logo Genes that share compounds with C1QC: view

Transcripts for C1QC Gene

mRNA/cDNA for C1QC Gene

Unigene Clusters for C1QC Gene

Complement component 1, q subcomponent, C chain:
Representative Sequences:

Alternative Splicing Database (ASD) splice patterns (SP) for C1QC Gene

ExUns: 1a · 1b · 1c · 1d · 1e ^ 2 ^ 3 ^ 4a · 4b
SP1: - -
SP2: - - - -
SP3:
SP4: -
SP5:

Relevant External Links for C1QC Gene

GeneLoc Exon Structure for
C1QC
ECgene alternative splicing isoforms for
C1QC

Expression for C1QC Gene

mRNA expression in normal human tissues for C1QC Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

mRNA differential expression in normal tissues according to GTEx for C1QC Gene

This gene is overexpressed in Spleen (x12.4).

Protein differential expression in normal tissues from HIPED for C1QC Gene

This gene is overexpressed in Synovial fluid (13.7), Plasma (12.1), and Serum (11.7).

Integrated Proteomics: protein expression in normal tissues and cell lines from ProteomicsDB, PaxDb, and MOPED for C1QC Gene



SOURCE GeneReport for Unigene cluster for C1QC Gene Hs.467753

genes like me logo Genes that share expression patterns with C1QC: view

Protein tissue co-expression partners for C1QC Gene

- Elite partner

Primer Products

In Situ Assay Products

No data available for mRNA Expression by UniProt/SwissProt for C1QC Gene

Orthologs for C1QC Gene

This gene was present in the common ancestor of chordates.

Orthologs for C1QC Gene

Organism Taxonomy Gene Similarity Type Details
cow
(Bos Taurus)
Mammalia C1QC 35
  • 83.56 (n)
  • 78.92 (a)
C1QC 36
  • 68 (a)
OneToOne
dog
(Canis familiaris)
Mammalia C1QC 35
  • 85.31 (n)
  • 82.45 (a)
C1QC 36
  • 82 (a)
OneToOne
mouse
(Mus musculus)
Mammalia C1qc 35
  • 78.88 (n)
  • 74.66 (a)
C1qc 16
C1qc 36
  • 74 (a)
OneToOne
chimpanzee
(Pan troglodytes)
Mammalia C1QC 35
  • 99.32 (n)
  • 98.78 (a)
C1QC 36
  • 99 (a)
OneToOne
rat
(Rattus norvegicus)
Mammalia C1qc 35
  • 79.19 (n)
  • 77.38 (a)
oppossum
(Monodelphis domestica)
Mammalia C1QC 36
  • 67 (a)
OneToOne
platypus
(Ornithorhynchus anatinus)
Mammalia -- 36
  • 62 (a)
OneToMany
-- 36
  • 53 (a)
OneToMany
chicken
(Gallus gallus)
Aves C1QC 35
  • 64.49 (n)
  • 61.68 (a)
zebrafish
(Danio rerio)
Actinopterygii c1qc 35
  • 54.63 (n)
  • 52.2 (a)
c1qc 36
  • 45 (a)
OneToOne
Species with no ortholog for C1QC:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • African malaria mosquito (Anopheles gambiae)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • baker's yeast (Saccharomyces cerevisiae)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • fruit fly (Drosophila melanogaster)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • lizard (Anolis carolinensis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • rainbow trout (Oncorhynchus mykiss)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea squirt (Ciona intestinalis)
  • sea squirt (Ciona savignyi)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • thale cress (Arabidopsis thaliana)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • tropical clawed frog (Silurana tropicalis)
  • wheat (Triticum aestivum)
  • worm (Caenorhabditis elegans)

Evolution for C1QC Gene

ENSEMBL:
Gene Tree for C1QC (if available)
TreeFam:
Gene Tree for C1QC (if available)

Paralogs for C1QC Gene

(11) SIMAP similar genes for C1QC Gene using alignment to 1 proteins:

genes like me logo Genes that share paralogs with C1QC: view

Variants for C1QC Gene

Sequence variations from dbSNP and Humsavar for C1QC Gene

SNP ID Clin Chr 01 pos Sequence Context AA Info Type
VAR_008542 Complement component C1q deficiency (C1QD)
rs9434 -- 22,647,804(-) GTGGG(A/G/T)CTCGA utr-variant-3-prime
rs13970 -- 22,647,881(-) GGAGA(A/T)TGGTC utr-variant-3-prime
rs15940 -- 22,644,149(+) CTGCC(A/C/G/T)GGGGC reference, synonymous-codon
rs292003 -- 22,641,742(+) CTCGC(C/T)CACCC upstream-variant-2KB

Structural Variations from Database of Genomic Variants (DGV) for C1QC Gene

Variant ID Type Subtype PubMed ID
nsv871044 CNV Loss 21882294
esv34161 CNV Loss 18971310

Variation tolerance for C1QC Gene

Residual Variation Intolerance Score: 26.8% of all genes are more intolerant (likely to be disease-causing)
Gene Damage Index Score: 0.85; 17.86% of all genes are more intolerant (likely to be disease-causing)

Relevant External Links for C1QC Gene

HapMap Linkage Disequilibrium report
C1QC
Human Gene Mutation Database (HGMD)
C1QC

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for C1QC Gene

Disorders for C1QC Gene

MalaCards: The human disease database

(9) MalaCards diseases for C1QC Gene - From: OMIM, ClinVar, GeneTests, Orphanet, Swiss-Prot, DISEASES, and GeneCards

Disorder Aliases PubMed IDs
c1q deficiency
  • c1qd
immunodeficiency due to an early component of complement deficiency
  • immunodeficiency due to a c1, c4, or c2 component complement deficiency
lupus erythematosus
  • systemic lupus erythematosus
glomerulonephritis
rothmund-thomson syndrome
  • erythrokeratodermia variabilis
- elite association - COSMIC cancer census association via MalaCards
Search C1QC in MalaCards View complete list of genes associated with diseases

UniProtKB/Swiss-Prot

C1QC_HUMAN
  • Complement component C1q deficiency (C1QD) [MIM:613652]: A disorder caused by impaired activation of the complement classical pathway. It generally leads to severe immune complex disease with features of systemic lupus erythematosus and glomerulonephritis. {ECO:0000269 PubMed:8630118}. Note=The disease is caused by mutations affecting the gene represented in this entry.

Relevant External Links for C1QC

Genetic Association Database (GAD)
C1QC
Human Genome Epidemiology (HuGE) Navigator
C1QC
Atlas of Genetics and Cytogenetics in Oncology and Haematology:
C1QC
genes like me logo Genes that share disorders with C1QC: view

No data available for Genatlas for C1QC Gene

Publications for C1QC Gene

  1. Characterization and organization of the genes encoding the A-, B- and C-chains of human complement subcomponent C1q. The complete derived amino acid sequence of human C1q. (PMID: 1706597) Sellar G.C. … Reid K.B.M. (Biochem. J. 1991) 2 3 4 67
  2. Complement activation in patients with neuromyelitis optica. (PMID: 25109258) Nytrova P. … Trendelenburg M. (J. Neuroimmunol. 2014) 3
  3. Proteomic analysis of podocyte exosome-enriched fraction from normal human urine. (PMID: 23376485) Prunotto M. … Moll S. (J Proteomics 2013) 3
  4. Genetic variants in the region of the C1q genes are associated with rheumatoid arthritis. (PMID: 23607884) Trouw L.A. … Toes R.E. (Clin. Exp. Immunol. 2013) 3
  5. Expression of recombinant human complement C1q allows identification of the C1r/C1s-binding sites. (PMID: 23650384) Bally I. … Thielens N.M. (Proc. Natl. Acad. Sci. U.S.A. 2013) 3

Products for C1QC Gene

Sources for C1QC Gene

Back to Top

Content