Gene: COL18A1

Alternate names for this Gene: GLCC|KNO|KNO1|KS

Gene Summary: 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 homologous 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.

Gene is located in Chromosome: 21

Location in Chromosome : 21q22.3

Description of this Gene: collagen type XVIII alpha 1 chain

Type of Gene: protein-coding

Gene: MIR6815

Alternate names for this Gene: hsa-mir-6815

Gene Summary: microRNAs (miRNAs) are short (20-24 nt) non-coding RNAs that are involved in post-transcriptional regulation of gene expression in multicellular organisms by affecting both the stability and translation of mRNAs. miRNAs are transcribed by RNA polymerase II as part of capped and polyadenylated primary transcripts (pri-miRNAs) that can be either protein-coding or non-coding. The primary transcript is cleaved by the Drosha ribonuclease III enzyme to produce an approximately 70-nt stem-loop precursor miRNA (pre-miRNA), which is further cleaved by the cytoplasmic Dicer ribonuclease to generate the mature miRNA and antisense miRNA star (miRNA*) products. The mature miRNA is incorporated into a RNA-induced silencing complex (RISC), which recognizes target mRNAs through imperfect base pairing with the miRNA and most commonly results in translational inhibition or destabilization of the target mRNA. The RefSeq represents the predicted microRNA stem-loop.

Gene is located in Chromosome: 21

Location in Chromosome : 21q22.3

Description of this Gene: microRNA 6815

Type of Gene: ncRNA

rs2236461 in COL18A1;MIR6815 gene and Leukemia, Myelocytic, Acute PMID 27903959 2017 Genome-wide haplotype association study identify the FGFR2 gene as a risk gene for acute myeloid leukemia.