ST3GAL5

ST3 beta-galactoside alpha-2,3-sialyltransferase 5
Identifiers
Symbols	ST3GAL5 ; SATI; SIAT9; SIATGM3S; ST3GalV
External IDs	OMIM: 604402 MGI: 1339963 HomoloGene: 2893 GeneCards: ST3GAL5 Gene
EC number	2.4.99.9
Gene ontology Molecular function • neolactotetraosylceramide alpha-2,3-sialyltransferase activity • sialyltransferase activity • lactosylceramide alpha-2,3-sialyltransferase activity Cellular component • Golgi membrane • integral component of plasma membrane • integral component of membrane • integral component of Golgi membrane Biological process • ganglioside biosynthetic process • carbohydrate metabolic process • dolichol-linked oligosaccharide biosynthetic process • glycosphingolipid biosynthetic process • protein N-linked glycosylation via asparagine • post-translational protein modification • cellular protein metabolic process • sialylation Sources: Amigo / QuickGO
RNA expression pattern
More reference expression data
Orthologs
Species	Human	Mouse
Entrez	8869	20454
Ensembl	ENSG00000115525	ENSMUSG00000056091
UniProt	Q9UNP4	O88829
RefSeq (mRNA)	NM_001042437	NM_001035228
RefSeq (protein)	NP_001035902	NP_001030305
Location (UCSC)	Chr 2: 85.84 – 85.89 Mb	Chr 6: 72.1 – 72.15 Mb
PubMed search

Lactosylceramide alpha-2,3-sialyltransferase is an enzyme that in humans is encoded by the ST3GAL5 gene.^[1][2]

Ganglioside GM3 is known to participate in the induction of cell differentiation, modulation of cell proliferation, maintenance of fibroblast morphology, signal transduction, and integrin-mediated cell adhesion. The protein encoded by this gene is a type II membrane protein which catalyzes the formation of GM3 using lactosylceramide as the substrate. The encoded protein is a member of glycosyltransferase family 29 and may be localized to the Golgi apparatus. Mutation in this gene has been associated with Amish infantile epilepsy syndrome. Transcript variants encoding different isoforms have been found for this gene.^[2]

Mutations in this gene have also been associated to ‘Salt & Pepper’ syndrome: an autosomal recessive condition characterized by severe intellectual disability, epilepsy, scoliosis, choreoathetosis, dysmorphic facial features and altered dermal pigmentation (doi: 10.1093/hmg/ddt434)

References

1. Ishii A, Ohta M, Watanabe Y, Matsuda K, Ishiyama K, Sakoe K, Nakamura M, Inokuchi J, Sanai Y, Saito M (Dec 1998). "Expression cloning and functional characterization of human cDNA for ganglioside GM3 synthase". J Biol Chem 273 (48): 31652–5. doi:10.1074/jbc.273.48.31652. PMID 9822625.
2. "Entrez Gene: ST3GAL5 ST3 beta-galactoside alpha-2,3-sialyltransferase 5".

Further reading

• Bonaldo MF, Lennon G, Soares MB (1997). "Normalization and subtraction: two approaches to facilitate gene discovery". Genome Res. 6 (9): 791–806. doi:10.1101/gr.6.9.791. PMID 8889548.
• Fukumoto S, Miyazaki H, Goto G, et al. (1999). "Expression cloning of mouse cDNA of CMP-NeuAc:Lactosylceramide alpha2,3-sialyltransferase, an enzyme that initiates the synthesis of gangliosides". J. Biol. Chem. 274 (14): 9271–6. doi:10.1074/jbc.274.14.9271. PMID 10092602.
• Kapitonov D, Bieberich E, Yu RK (2000). "Combinatorial PCR approach to homology-based cloning: cloning and expression of mouse and human GM3-synthase". Glycoconj. J. 16 (7): 337–50. doi:10.1023/A:1007091926413. PMID 10619706.
• Allende ML, Li J, Darling DS, et al. (2000). "Evidence supporting a late Golgi location for lactosylceramide to ganglioside GM3 conversion". Glycobiology 10 (10): 1025–32. doi:10.1093/glycob/10.10.1025. PMID 11030748.
• Kim KW, Kim SW, Min KS, et al. (2001). "Genomic structure of human GM3 synthase gene (hST3Gal V) and identification of mRNA isoforms in the 5'-untranslated region". Gene 273 (2): 163–71. doi:10.1016/S0378-1119(01)00595-9. PMID 11595162.
• Kim SW, Lee SH, Kim KS, et al. (2002). "Isolation and characterization of the promoter region of the human GM3 synthase gene". Biochim. Biophys. Acta 1578 (1–3): 84–9. doi:10.1016/s0167-4781(02)00505-5. PMID 12393190.
• Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
• Zeng G, Gao L, Xia T, et al. (2003). "Characterization of the 5'-flanking fragment of the human GM3-synthase gene". Biochim. Biophys. Acta 1625 (1): 30–5. doi:10.1016/s0167-4781(02)00573-0. PMID 12527423.
• Clark HF, Gurney AL, Abaya E, et al. (2003). "The secreted protein discovery initiative (SPDI), a large-scale effort to identify novel human secreted and transmembrane proteins: a bioinformatics assessment". Genome Res. 13 (10): 2265–70. doi:10.1101/gr.1293003. PMC 403697. PMID 12975309.
• Ota T, Suzuki Y, Nishikawa T, et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs". Nat. Genet. 36 (1): 40–5. doi:10.1038/ng1285. PMID 14702039.
• Chung TW, Choi HJ, Lee YC, Kim CH (2005). "Molecular mechanism for transcriptional activation of ganglioside GM3 synthase and its function in differentiation of HL-60 cells". Glycobiology 15 (3): 233–44. doi:10.1093/glycob/cwh156. PMID 15385432.
• Simpson MA, Cross H, Proukakis C, et al. (2004). "Infantile-onset symptomatic epilepsy syndrome caused by a homozygous loss-of-function mutation of GM3 synthase". Nat. Genet. 36 (11): 1225–9. doi:10.1038/ng1460. PMID 15502825.
• Hillier LW, Graves TA, Fulton RS, et al. (2005). "Generation and annotation of the DNA sequences of human chromosomes 2 and 4". Nature 434 (7034): 724–31. doi:10.1038/nature03466. PMID 15815621.
• Berselli P, Zava S, Sottocornola E, et al. (2006). "Human GM3 synthase: a new mRNA variant encodes an NH2-terminal extended form of the protein". Biochim. Biophys. Acta 1759 (7): 348–58. doi:10.1016/j.bbaexp.2006.07.001. PMID 16934889.