In extracellular secreted form, promotes proliferation and activation of CD8(+) T cells, suggesting a cytokine-like function (PubMed:25125657). Enhances cytotoxic anti-tumor activity of CD8(+) T cells (PubMed:25125657). May inhibit ERK and JNK signaling activity (PubMed:18087676, PubMed:23070808). May suppress cell migration and invasion activity, via its effects on ERK and JNK signaling (PubMed:23070808). Has a critical role in the regulation of osteogenesis and bone development (PubMed:32181939).
In the nucleus, enhances stability of the PCAF histone acetyltransferase (HAT) complex member TADA2A and thus promotes PCAF-mediated H3K14 and H4K8 HAT activity. May inhibit TADA2A-mediated TP53/p53 'Lys-321' acetylation, leading to reduced TP53 stability and transcriptional activity. May also promote TADA2A-mediated XRCC6 acetylation thus facilitating cell apoptosis in response to DNA damage.
Osteogenesis imperfecta 22
OI22
An autosomal recessive form of osteogenesis imperfecta, a disorder of bone formation characterized by low bone mass, bone fragility and susceptibility to fractures after minimal trauma. Disease severity ranges from very mild forms without fractures to intrauterine fractures and perinatal lethality. Extraskeletal manifestations, which affect a variable number of patients, are dentinogenesis imperfecta, hearing loss, and blue sclerae. OI22 is a severe form of the disease.
None
The disease is caused by variants affecting the gene represented in this entry. A recurrent variant in the initiation codon has been found in multiple OI22 patients (PubMed:32181939, PubMed:35019224). The variant results in absence of CCDC134 protein in patient fibroblasts and osteoblasts, increased ERK1/2 phosphorylation, decreased OPN and COL1A1 expression and reduced mineralization (PubMed:32181939).
O-glycosylated, with additional sialic acid modifications.
Belongs to the CCDC134 family.
Expressed in cervical gland, cervical squamous epithelium, endometrium, stomach, kidney distal convoluted tubule, spermatogenic cells in testis, mammary gland, liver and striated muscle (at protein level) (PubMed:18087676, PubMed:23070808). Also detected in placenta (PubMed:18087676). Highest expression in testis relative to other tissues (PubMed:18087676). Detected in T cells and dendritic cells; highly expressed in activated CD8(+) T cells, and also expressed at lower levels in CD4(+) T cells (PubMed:25125657).
Coiled-coil domain-containing protein 134, CCDC134
Proteins
Oncology
26561Da
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ab106442