Chromosomal region 7p12, which contains GBAS, is amplified in approximately 40% of glioblastomas, the most common and malignant form of central nervous system tumor.The predicted 286-amino acid protein contains a signal peptide, a transmembrane domain, and 2 tyrosine phosphorylation sites. The GBAS transcript is expressed most abundantly in heart and skeletal muscle. GBAS protein might be involved in vesicular transport.
^Wang XY, Smith DI, Liu W, James CD (Aug 1998). "GBAS, a novel gene encoding a protein with tyrosine phosphorylation sites and a transmembrane domain, is co-amplified with EGFR". Genomics. 49 (3): 448–51. doi:10.1006/geno.1998.5239. PMID9615231.
^Seroussi E, Pan HQ, Kedra D, Roe BA, Dumanski JP (Jul 1998). "Characterization of the human NIPSNAP1 gene from 22q12: a member of a novel gene family". Gene. 212 (1): 13–20. doi:10.1016/S0378-1119(98)00098-5. PMID9661659.