CMAS, Official Symbol CMASprovided by HGNC Official Full Name cytidine monophosphate N-acetylneuraminic acid synthetaseprovided by HGNC Primary source HGNC:HGNC:18290 See related Ensembl:ENSG00000111726 MIM:603316; AllianceGenome:HGNC:18290 Gene type protein coding RefSeq status REVIEWED Organism Homo sapiens Lineage Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo Also known as CSS Summary This gene encodes an enzyme that converts N-acetylneuraminic acid (NeuNAc) to cytidine 5'-monophosphate N-acetylneuraminic acid (CMP-NeuNAc). This process is important in the formation of sialylated glycoprotein and glycolipids. This modification plays a role in cell-cell communications and immune responses. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2016] Expression Ubiquitous expression in testis (RPKM 46.2), colon (RPKM 38.5) and 25 other tissues See more Orthologs mouse all