CCN5
CCN family member 5
Also known as: CCN5_HUMAN, CT58, CTGF-L, WISP-2, WISP2
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- O76076
- Gene
- CCN5
- Ensembl
- ENSG00000064205
- Chromosome
- 20
- Canonical length
- 250 aa
- Protein class
- Plasma proteins, Predicted secreted proteins
- Subcellular location
- Plasma membrane
- Secretome location
- Secreted to extracellular matrix
OverviewNCBI Gene
This gene encodes a member of the WNT1 inducible signaling pathway (WISP) protein subfamily, which belongs to the connective tissue growth factor (CTGF) family. WNT1 is a member of a family of cysteine-rich, glycosylated signaling proteins that mediate diverse developmental processes. The CTGF family members are characterized by four conserved cysteine-rich domains: insulin-like growth factor-binding domain, von Willebrand factor type C module, thrombospondin domain and C-terminal cystine knot-like (CT) domain. The encoded protein lacks the CT domain which is implicated in dimerization and heparin binding. It is 72% identical to the mouse protein at the amino acid level. This gene may be downstream in the WNT1 signaling pathway that is relevant to malignant transformation. Its expression in colon tumors is reduced while the other two WISP members are overexpressed in colon tumors. It is expressed at high levels in bone tissue, and may play an important role in modulating bone turnover. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
250 residues, UniProt reviewed canonical sequence.
>O76076|CCN5
1 MRGTPKTHLL AFSLLCLLSK VRTQLCPTPC TCPWPPPRCP LGVPLVLDGC GCCRVCARRL
61 GEPCDQLHVC DASQGLVCQP GAGPGGRGAL CLLAEDDSSC EVNGRLYREG ETFQPHCSIR
121 CRCEDGGFTC VPLCSEDVRL PSWDCPHPRR VEVLGKCCPE WVCGQGGGLG TQPLPAQGPQ
181 FSGLVSSLPP GVPCPEWSTA WGPCSTTCGL GMATRVSNQN RFCRLETQRR LCLSRPCPPS
241 RGRSPQNSAFLocalizationUniProt · AlphaFold · HPA
Whether an antibody against CCN5 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Secreted
- Secreted
- Yes
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.48
- Highest tissue expression
- 904 nTPM
Expression across tissuesHPA
Tissue
- blood vessel: 904 nTPM
- adipose tissue: 423 nTPM
- cervix: 366 nTPM
- skin: 212 nTPM
- heart muscle: 175 nTPM
- lung: 148 nTPM
Single-cell type
- leydig cells: 313 nCPM
- fibroblasts: 292 nCPM
- schwann cells: 202 nCPM
- vascular smooth muscle cells: 188 nCPM
- hepatic stellate cells: 187 nCPM
- ovarian stromal cells: 169 nCPM
Immune cell
- basophil: 0 nTPM
- classical monocyte: 0 nTPM
- eosinophil: 0 nTPM
- gdT-cell: 0 nTPM
- intermediate monocyte: 0 nTPM
- MAIT T-cell: 0 nTPM
Brain region
- cerebral cortex: 2.9 nTPM
- basal ganglia: 2.8 nTPM
- amygdala: 2.3 nTPM
- white matter: 2 nTPM
- hippocampal formation: 1.8 nTPM
- midbrain: 1.6 nTPM
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 1.46
- gnomAD pLI
- 0
- DepMap mean gene effect
- 0.1
- DepMap dependency class
- none
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 3% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Insulin-like growth factor-binding protein, IGFBP
- Thrombospondin type-1 (TSP1) repeat
- VWFC domain
- Growth factor receptor cysteine-rich domain superfamily
- Insulin-like growth factor binding protein, N-terminal, Cys-rich conserved site
- Thrombospondin type-1 repeat superfamily
- CCN, TSP1 domain
- Cellular Communication Network Factor
- von Willebrand factor type C domain
- Insulin-like growth factor binding protein
- CCN3 Nov like TSP1 domain
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads CCN5 as an antibody target. Whether an autoantibody or antibody against CCN5 could matter depends on whether native CCN5 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
CCN5 is annotated as secreted, so native CCN5 circulates and is directly accessible to antibodies. Secreted and cell-surface proteins are the autoantibody targets most likely to act like drugs, blocking or depleting the native protein.
Annotation status
The present source text does not explicitly label CCN5 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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