HGNC Approved Gene Symbol: INSL5
Cytogenetic location: 1p31.3 Genomic coordinates (GRCh38) : 1:66,797,740-66,801,276 (from NCBI)
Members of the insulin gene superfamily, such as INSL5, regulate cell growth, metabolism, and tissue-specific functions. Members of this family are characterized by a signal peptide, a B chain, a connecting C chain, and an A chain (summary by Conklin et al., 1999).
By EST database searching for sequences related to relaxin (RLN1; 179730), Conklin et al. (1999) identified a cDNA encoding INSL5, also designated ZINS3. The deduced 135-amino acid protein, which shares 59% and 40% sequence identity with mouse Insl5 and human RLN1, respectively, has a dibasic cleavage site between the B and C chains. Northern blot analysis revealed expression of an approximately 1.0-kb transcript in uterus, rectum, and colon.
By radiation hybrid analysis and the use of surrounding markers, Conklin et al. (1999) mapped the INSL5 gene to chromosome 1p31.1-p22.3.
Conklin, D., Lofton-Day, C. E., Haldeman, B. A., Ching, A., Whitmore, T. E., Lok, S., Jaspers, S. Identification of INSL5, a new member of the insulin superfamily. Genomics 60: 50-56, 1999. [PubMed: 10458910] [Full Text: https://doi.org/10.1006/geno.1999.5899]