| 70936 | Col18a1 | collagen type XVIII alpha 1 chain | ENCODES a protein that exhibits identical protein binding (ortholog); INVOLVED IN response to hydrostatic pressure; response to xenobiotic stimulus; angiogenesis (ortholog); PARTICIPATES IN forkhead class A signaling pathway; ASSOCIATED WITH Colonic Neoplasms; Experimental Mammary Neoplasms; Fibrosi s; FOUND IN extracellular space; basement membrane (ortholog); INTERACTS WITH (+)-schisandrin B; 17alpha-ethynylestradiol; 2,2',5,5'-tetrachlorobiphenyl | 20 | 11473645 | 11582111 | Rat | 279 | symbol , PhenoGen | gene, protein-coding, PROVISIONAL [RefSeq] |
| 736032 | COL18A1 | collagen type XVIII alpha 1 chain | This gene encodes the alpha chain of type XVIII collagen. This collagen is one of the multiplexins, extracellular matrix proteins that contain multiple triple-helix domains (collagenous domains) interrupted by non-collagenous domains. A long isoform of the protein has an N-terminal domain that is ho mologous to the extracellular part of frizzled receptors. Proteolytic processing at several endogenous cleavage sites in the C-terminal domain results in production of endostatin, a potent antiangiogenic protein that is able to inhibit angiogenesis and tumor growth. Mutations in this gene are associated with Knobloch syndrome. The main features of this syndrome involve retinal abnormalities, so type XVIII collagen may play an important role in retinal structure and in neural tube closure. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2014] | 21 | 45405165 | 45513720 | Human | 427 | symbol , COSMIC , Human Proteome Map | gene, protein-coding, REVIEWED [RefSeq] |
| 736033 | Col18a1 | collagen, type XVIII, alpha 1 | Predicted to enable identical protein binding activity. Predicted to be an extracellular matrix structural constituent conferring tensile strength. Acts upstream of or within several processes, including endothelial cell morphogenesis; positive regulation of endothelial cell apoptotic process; and p ositive regulation of vascular endothelial cell proliferation. Located in basement membrane. Is expressed in several structures, including alimentary system; brain; genitourinary system; respiratory system; and sensory organ. Used to study pigment dispersion syndrome. Human ortholog(s) of this gene implicated in primary angle-closure glaucoma. Orthologous to human COL18A1 (collagen type XVIII alpha 1 chain). [provided by Alliance of Genome Resources, Jul 2025] | 10 | 76888013 | 77002351 | Mouse | 333 | symbol , PhenoGen , description | gene, protein-coding, VALIDATED [RefSeq] |
| 8843833 | Col18a1 | collagen type XVIII alpha 1 chain | ENCODES a protein that exhibits identical protein binding (ortholog); INVOLVED IN angiogenesis (ortholog); endothelial cell morphogenesis (ortholog); extracellular matrix organization (ortholog); PARTICIPATES IN forkhead class A signaling pathway; ASSOCIATED WITH angiosarcoma (ortholog); calcinosis (ortholog); cataract (ortholog); FOUND IN basement membrane (ortholog); extracellular space (ortholog) | NW_004955407 | 42091211 | 42131343 | Chinchilla | 39 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 11673127 | COL18A1 | collagen type XVIII alpha 1 chain | ENCODES a protein that exhibits identical protein binding (ortholog); INVOLVED IN angiogenesis (ortholog); endothelial cell morphogenesis (ortholog); extracellular matrix organization (ortholog); PARTICIPATES IN forkhead class A signaling pathway; ASSOCIATED WITH angiosarcoma (ortholog); calcinosis (ortholog); cataract (ortholog); FOUND IN basement membrane (ortholog); extracellular space (ortholog) | 21 | 31720358 | 31834470 | Bonobo | 39 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 12355212 | COL18A1 | collagen type XVIII alpha 1 chain | ENCODES a protein that exhibits identical protein binding (ortholog); INVOLVED IN angiogenesis (ortholog); endothelial cell morphogenesis (ortholog); extracellular matrix organization (ortholog); PARTICIPATES IN forkhead class A signaling pathway; ASSOCIATED WITH angiosarcoma (ortholog); calcinosis (ortholog); cataract (ortholog); FOUND IN extracellular space (ortholog) | 31 | 38915872 | 38957484 | Dog | 49 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 12533170 | Col18a1 | collagen type XVIII alpha 1 chain | ENCODES a protein that exhibits identical protein binding (ortholog); INVOLVED IN angiogenesis (ortholog); endothelial cell morphogenesis (ortholog); extracellular matrix organization (ortholog); PARTICIPATES IN forkhead class A signaling pathway; ASSOCIATED WITH angiosarcoma (ortholog); calcinosis (ortholog); cataract (ortholog); FOUND IN extracellular space (ortholog) | NW_004936778 | 847473 | 943038 | Squirrel | 47 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 18926506 | Col18a1 | collagen type XVIII alpha 1 chain | ENCODES a protein that exhibits identical protein binding (ortholog); INVOLVED IN angiogenesis (ortholog); endothelial cell morphogenesis (ortholog); extracellular matrix organization (ortholog); PARTICIPATES IN forkhead class A signaling pathway; ASSOCIATED WITH angiosarcoma (ortholog); calcinosis (ortholog); cataract (ortholog); FOUND IN extracellular space (ortholog) | | | | Naked Mole-Rat | 43 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 15039232 | COL18A1 | collagen, type XVIII, alpha 1 | INVOLVED IN cell adhesion (inferred) | | | | Pig | 1 | symbol | gene, protein-coding |
| 18590719 | COL18A1 | collagen type XVIII alpha 1 chain | ENCODES a protein that exhibits identical protein binding (ortholog); INVOLVED IN angiogenesis (ortholog); endothelial cell morphogenesis (ortholog); extracellular matrix organization (ortholog); PARTICIPATES IN forkhead class A signaling pathway; ASSOCIATED WITH angiosarcoma (ortholog); calcinosis (ortholog); cataract (ortholog); FOUND IN basement membrane (ortholog); extracellular space (ortholog) | | | | Green Monkey | 39 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 626089486 | Col18a1 | collagen type XVIII alpha 1 chain | ENCODES a protein that exhibits identical protein binding (ortholog); INVOLVED IN angiogenesis (ortholog); endothelial cell morphogenesis (ortholog); extracellular matrix organization (ortholog); PARTICIPATES IN forkhead class A signaling pathway; ASSOCIATED WITH angiosarcoma (ortholog); calcinosis (ortholog); cataract (ortholog); FOUND IN basement membrane (ortholog); extracellular space (ortholog) | | | | Black Rat | 39 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 155233803 | col18a1 | | | | | | Tropical Clawed Frog | | symbol | gene, null |
| 13902912 | COL18A1 | collagen type XVIII alpha 1 chain | ENCODES a protein that exhibits identical protein binding (ortholog); INVOLVED IN angiogenesis (ortholog); endothelial cell morphogenesis (ortholog); extracellular matrix organization (ortholog); PARTICIPATES IN forkhead class A signaling pathway; ASSOCIATED WITH angiosarcoma (ortholog); calcinosis (ortholog); cataract (ortholog); FOUND IN extracellular space (ortholog); INTERACTS WITH deoxynivalenol | | | | Pig | 50 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 155236493 | col18a1.L | | | | | | African Clawed Frog | | symbol | gene, null |
| 155233802 | col18a1.S | | | | | | African Clawed Frog | | symbol | gene, null |
| 1350562 | COL18A1-AS1 | COL18A1 antisense RNA 1 | INTERACTS WITH 17beta-estradiol; valproic acid | 21 | 45419716 | 45425070 | Human | 2 | symbol , COSMIC , name , Human Proteome Map | gene, ncrna, VALIDATED [RefSeq] |
| 6766705 | COL18A1-AS2 | COL18A1 antisense RNA 2 | INTERACTS WITH aflatoxin B1; benzo[a]pyrene; benzo[e]pyrene | 21 | 45407386 | 45410065 | Human | 4 | symbol , COSMIC , name , Human Proteome Map | gene, ncrna, VALIDATED [RefSeq] |