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C1QC Gene(Protein Coding)

Complement C1q C Chain

GCID:
GC01P022643
GIFtS:
62
Genes Participants
UDN Logo

Aliases for C1QC Gene

Aliases for C1QC Gene

  • Complement C1q C Chain 2 3 5
  • Complement Component 1, Q Subcomponent, Gamma Polypeptide 2 3
  • Complement Component 1, Q Subcomponent, C Chain 2 3
  • C1QG 3 4
  • Complement C1q Subcomponent Subunit C 3
  • 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 the C-chain polypeptide of serum complement subcomponent C1q, which associates with C1r and C1s to yield the first component of the serum complement system. C1q is composed of 18 polypeptide chains which include 6 A-chains, 6 B-chains, and 6 C-chains. Each chain contains an N-terminal collagen-like region and a C-terminal C1q globular domain. C1q deficiency is associated with lupus erythematosus and glomerulonephritis. [provided by RefSeq, Dec 2016]

GeneCards Summary for C1QC Gene

C1QC (Complement C1q C Chain) is a Protein Coding gene. Diseases associated with C1QC include C1q Deficiency and Immunodeficiency Due To A Classical Component Pathway Complement Deficiency. Among its related pathways are Innate Immune System and Complement Pathway. An important paralog of this gene is C1QB.

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 CIViC summary , Tocris Summary , Gene Wiki entry , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for C1QC Gene

Genomics for C1QC Gene

Products:

  1. Regulatory Element

Regulatory Elements for C1QC Gene

Enhancers for C1QC Gene
GeneHancer Identifier Enhancer Score Enhancer Sources Gene-Enhancer Score TSS distance (kb) Number of Genes Away Size (kb) Transcription Factor Binding Sites within enhancer Gene Targets for Enhancer
GH01G022412 1.3 Ensembl ENCODE 11.8 -229.8 -229806 2.6 FOXA2 PKNOX1 ATF1 MLX ARID4B SIN3A ZNF48 YY1 ZNF121 FOS C1QA C1QC LACTBL1 ZBTB40 LOC105376856 ENSG00000279625
GH01G022416 1.2 Ensembl ENCODE 11.8 -226.9 -226880 0.5 ATF1 WRNIP1 ARID4B ZNF2 ZNF48 ZNF143 KLF13 DEK ZNF263 SP5 C1QA C1QC LACTBL1 LOC105376856 ENSG00000279625
GH01G023548 1.2 Ensembl ENCODE dbSUPER 5.1 +905.4 905426 0.9 BCOR HDGF KLF1 MAX ZMYM3 NFXL1 ZFHX2 EGR1 ZNF143 SMARCA5 ZNF436-AS1 TCEA3 C1QC LOC105376859 E2F2
GH01G022851 0.9 FANTOM5 2.1 +208.1 208075 0.2 HDAC1 CREB3L1 NFRKB ZEB1 ZNF335 IKZF2 EGR2 ZNF263 ZBTB11 ZEB2 C1QA C1QB C1QC MIR4253 ENSG00000225952
GH01G022636 0.8 Ensembl 0.4 -6.7 -6725 0.6 ELF3 CTCF DRAP1 TFAP4 CEBPG ZIC2 ZNF644 TEAD3 RARA CREM C1QA C1QC
- Elite enhancer and/or Elite enhancer-gene association Download GeneHancer data dump

Enhancers around C1QC on UCSC Golden Path with GeneCards custom track

Transcription factor binding sites by QIAGEN in the C1QC gene promoter:

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 Structure • Gene Density

RefSeq DNA sequence for C1QC Gene

Proteins for C1QC Gene

Products:

  1. Antibody
  2. Protein
  3. Assay

  • 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

Protein Expression for C1QC Gene

See protein expression from ProteomicsDB, MOPED, PaxDb, and MaxQB

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 Lys75
  • Modification sites at PhosphoSitePlus

Other Protein References for C1QC Gene

ENSEMBL proteins:
REFSEQ proteins:

Antibody Products

  • R&D Systems Antibodies for C1QC (Complement Component C1qC)
  • Santa Cruz Biotechnology (SCBT) Antibodies for C1QC

No data available for DME Specific Peptides for C1QC Gene

Domains & Families for C1QC Gene

Gene Families for C1QC Gene

HGNC:

Protein Domains for C1QC Gene

InterPro:
Blocks:
ProtoNet:

Suggested Antigen Peptide Sequences for C1QC Gene

GenScript: Design optimal peptide antigens:

Graphical View of Domain Structure for InterPro Entry

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

No data available for UniProtKB/Swiss-Prot for C1QC Gene

Function for C1QC Gene

Products:

  1. Animal Model
  2. CRISPR
  3. miRNA
  4. Inhibitory RNA
  5. Clone
  6. Cell Line

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.

Gene Ontology (GO) - Molecular Function for C1QC Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0004252 serine-type endopeptidase activity TAS --
genes like me logo Genes that share ontologies with C1QC: view
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

CRISPR Products

Inhibitory RNA Products

Clone Products

  • Applied Biological Materials Clones for C1QC

No data available for Enzyme Numbers (IUBMB) , 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
Extracellular space Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi Apparatus Nucleus Mitochondrion 0 1 2 3 4 5 Confidence
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 --
GO:0005615 extracellular space IDA 22664934
GO:0070062 extracellular exosome IDA 23376485
GO:0072562 blood microparticle IDA 22516433
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:0006508 proteolysis IEA --
GO:0006955 immune response NAS 9777412
GO:0006956 complement activation TAS --
GO:0006958 complement activation, classical pathway TAS --
GO:0030449 regulation of complement activation 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

Products:

  1. Drug

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

Name Status Disease Links Group Role Mechanism of Action Clinical Trials
Abciximab Approved Pharma Target 65
Adalimumab Approved Pharma Target 494
Alefacept Approved, Withdrawn Pharma Target 40
alemtuzumab Approved, Investigational Pharma Target Therapeutic Antibodies 310
Basiliximab Approved, Investigational Pharma Target 138
genes like me logo Genes that share compounds with C1QC: view

Transcripts for C1QC Gene

Products:

  1. CRISPR
  2. miRNA
  3. Inhibitory RNA
  4. Clone

mRNA/cDNA for C1QC Gene

(4) REFSEQ mRNAs :
(4) Additional mRNA sequences :
(507) Selected AceView cDNA sequences:
(3) Ensembl transcripts including schematic representations, and UCSC links where relevant :

Unigene Clusters for C1QC Gene

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

CRISPR Products

Inhibitory RNA Products

Clone Products

  • Applied Biological Materials Clones for C1QC

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

Products:

  1. Primer

mRNA expression in normal human tissues from GTEx, Illumina, BioGPS, and CGAP SAGE for C1QC Gene

mRNA expression in normal human tissues for C1QC Gene
mRNA expression by BioGPS for C1QC GenemRNA expression by GTEx 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



Protein tissue co-expression partners for C1QC Gene

- Elite partner

NURSA nuclear receptor signaling pathways regulating expression of C1QC Gene:

C1QC

SOURCE GeneReport for Unigene cluster for C1QC Gene:

Hs.467753

Evidence on tissue expression from TISSUES for C1QC Gene

  • Nervous system(4.5)
  • Blood(4.2)
  • Lung(3.1)
  • Spleen(2.9)
  • Liver(2.3)
  • Lymph node(2.3)
  • Intestine(2.1)
  • Adrenal gland(2)
  • Gall bladder(2)

Phenotype-based relationships between genes and organs from Gene ORGANizer for C1QC Gene

Germ Layers:
  • ectoderm
  • endoderm
  • mesoderm
Systems:
  • cardiovascular
  • digestive
  • endocrine
  • immune
  • integumentary
  • lymphatic
  • nervous
  • respiratory
  • skeletal muscle
  • skeleton
  • urinary
Organs:
Head and neck:
  • brain
  • cheek
  • ear
  • eye
  • face
  • head
  • lip
  • meninges
  • mouth
  • neck
  • scalp
  • thyroid
Thorax:
  • bronchus
  • esophagus
  • heart
  • lung
Abdomen:
  • intestine
  • kidney
  • large intestine
  • liver
  • pancreas
  • small intestine
  • spleen
  • stomach
Limb:
  • ankle
  • digit
  • elbow
  • finger
  • foot
  • hand
  • hip
  • knee
  • lower limb
  • shoulder
  • toe
  • upper limb
  • wrist
General:
  • blood
  • blood vessel
  • coagulation system
  • lymph node
  • skin
  • white blood cell
genes like me logo Genes that share expression patterns with C1QC: view

Primer 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
chimpanzee
(Pan troglodytes)
 Mammalia C1QC 34 35
  • 99.32 (n)
dog
(Canis familiaris)
 Mammalia C1QC 34 35
  • 85.31 (n)
cow
(Bos Taurus)
 Mammalia C1QC 34 35
  • 83.56 (n)
rat
(Rattus norvegicus)
 Mammalia C1qc 34
  • 79.19 (n)
mouse
(Mus musculus)
 Mammalia C1qc 34 16 35
  • 78.88 (n)
oppossum
(Monodelphis domestica)
 Mammalia C1QC 35
  • 67 (a)
 OneToOne
platypus
(Ornithorhynchus anatinus)
 Mammalia -- 35
  • 62 (a)
 OneToMany
-- 35
  • 53 (a)
 OneToMany
chicken
(Gallus gallus)
 Aves C1QC 34
  • 64.49 (n)
zebrafish
(Danio rerio)
 Actinopterygii c1qc 34 35
  • 54.63 (n)
Species where no ortholog for C1QC was found in the sources mined by GeneCards:
  • 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

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
rs200206736 Complement component C1q deficiency (C1QD) [MIM:613652] 22,644,123(+) GCTAC(A/G)GGATC intron-variant, reference, missense
rs1000071806 -- 22,642,776(+) GCACC(A/C)CCAGG upstream-variant-2KB
rs1000735542 -- 22,645,185(+) CATTC(C/T)AGAAG intron-variant
rs1000742008 -- 22,643,023(+) CTGCC(A/G)CCAAA upstream-variant-2KB
rs1001879721 -- 22,647,919(+) GCCCA(C/T)CCTGA utr-variant-3-prime

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

Variant ID Type Subtype PubMed ID
esv34161 CNV loss 18971310
nsv473644 CNV novel sequence insertion 20440878

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

Human Gene Mutation Database (HGMD)
C1QC
SNPedia medical, phenotypic, and genealogical associations of SNPs for
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 a classical component pathway complement deficiency
  • immunodeficiency due to a c1, c4, or c2 component complement deficiency
lupus erythematosus
  • systemic lupus erythematosus
rothmund-thomson syndrome
  • erythrokeratodermia variabilis
chronic wasting disease
  • wasting disease, chronic
- 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 64
  2. Risk of meningioma and common variation in genes related to innate immunity. (PMID: 20406964) Rajaraman P. … Inskip P.D. (Cancer Epidemiol. Biomarkers Prev. 2010) 3 46 64
  3. Polymorphisms in innate immunity genes and risk of childhood leukemia. (PMID: 20438785) Han S. … Kang D. (Hum. Immunol. 2010) 3 46 64
  4. Assessing association of common variation in the C1Q gene cluster with systemic lupus erythematosus. (PMID: 20528885) Rafiq S. … Eggleton P. (Clin. Exp. Immunol. 2010) 3 46 64
  5. Variation at the NFATC2 locus increases the risk of thiazolidinedione-induced edema in the Diabetes REduction Assessment with ramipril and rosiglitazone Medication (DREAM) study. (PMID: 20628086) Bailey S.D. … Anand S. (Diabetes Care 2010) 3 46 64

Products for C1QC Gene

Sources for C1QC Gene

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