| Tissue Specificity | Found in collagen I-containing tissues: both isoform 1 and isoform 2 appear in amnion, chorion, skeletal muscle, small intestine, and in cell culture of dermal fibroblasts, keratinocytes and endothelial cells. Only isoform 2 is found in lung, placenta, kidney and a squamous cell carcinoma cell line. Isoform 1 is also present in the corneal epithelial Bowman's membrane (BM) and the interfibrillar matrix of the corneal stroma, but it is not detected in the limbal BM. |
| Post Translational Modifications | The triple-helical tail is stabilized by disulfide bonds at each end. Hydroxylation on proline residues within the sequence motif, GXPG, is most likely to be 4-hydroxy as this fits the requirement for 4-hydroxylation in vertebrates. Isoform 1 O-glycosylation.glycosaminoglycan of chondroitin-sulfate type. |
| Function | Type XII collagen interacts with type I collagen-containing fibrils, the COL1 domain could be associated with the surface of the fibrils, and the COL2 and NC3 domains may be localized in the perifibrillar matrix. |
| Protein Name | Collagen Alpha-1(Xii Chain |
| Database Links | Reactome: R-HSA-1442490Reactome: R-HSA-1650814Reactome: R-HSA-2022090Reactome: R-HSA-8948216 |
| Cellular Localisation | SecretedExtracellular SpaceExtracellular Matrix |
| Alternative ELISA Names | Collagen Alpha-1(Xii Chain ELISA kitCOL12A1 ELISA kitCOL12A1L ELISA kit |
| output | |
Information sourced from Uniprot.org
