Identification
HMDB Protein ID CDBP00202
Secondary Accession Numbers Not Available
Name CMP-N-acetylneuraminate-beta-1,4-galactoside alpha-2,3-sialyltransferase
Description Not Available
Synonyms
  1. Alpha 2,3-ST 3
  2. Beta-galactoside alpha-2,3-sialyltransferase 3
  3. Gal beta-1,3(4) GlcNAc alpha-2,3 sialyltransferase
  4. N-acetyllactosaminide alpha-2,3-sialyltransferase
  5. ST3Gal III
  6. ST3GalIII
  7. ST3N
  8. Sialyltransferase 6
Gene Name ST3GAL3
Protein Type Enzyme
Biological Properties
General Function Involved in sialyltransferase activity
Specific Function Catalyzes the formation of the NeuAc-alpha-2,3-Gal-beta-1,4-GlcNAc-, NeuAc-alpha-2,3-Gal-beta-1,3-GlcNAc- or NeuAc-alpha-2,3-Gal-beta-1,3-GalNAc- sequences found in terminal carbohydrate groups of glycoproteins and glycolipids. The highest activity is toward Gal-beta-1,3-GlcNAc and the lowest toward Gal-beta-1,3-GalNAc (By similarity).
GO Classification
Biological Process
keratan sulfate biosynthetic process
O-glycan processing
post-translational protein modification
Cellular Component
Golgi cisterna membrane
integral to Golgi membrane
extracellular region
Golgi membrane
Component
cell part
membrane part
intrinsic to membrane
intrinsic to organelle membrane
intrinsic to golgi membrane
integral to golgi membrane
Function
catalytic activity
transferase activity
transferase activity, transferring glycosyl groups
sialyltransferase activity
Molecular Function
beta-galactoside (CMP) alpha-2,3-sialyltransferase activity
N-acetyllactosaminide alpha-2,3-sialyltransferase activity
Process
metabolic process
macromolecule metabolic process
macromolecule modification
protein modification process
protein amino acid glycosylation
Cellular Location
  1. Secreted
  2. Single-pass type II membrane protein
  3. Golgi apparatus
  4. Golgi stack membrane
Pathways
Gene Properties
Chromosome Location 1
Locus 1p34.1
SNPs ST3GAL3
Gene Sequence
>1128 bp
ATGGGACTCTTGGTATTTGTGCGCAATCTGCTGCTAGCCCTCTGCCTCTTTCTGGTACTG
GGATTTTTGTATTATTCTGCGTGGAAGCTACACTTACTCCAGTGGGAGGAGGACTCCAAT
TCAGTGGTTCTTTCCTTTGACTCCGCTGGACAAACACTAGGCTCAGAGTATGATCGGTTG
GGCTTCCTCCTGAATCTGGACTCTAAACTGCCTGCTGAATTAGCCACCAAGTACGCAAAC
TTTTCAGAGGGAGCTTGCAAGCCTGGCTATGCTTCAGCCTTGATGACGGCCATCTTCCCC
CGGTTCTCCAAGCCAGCACCCATGTTCCTGGATGACTCCTTTCGCAAGTGGGCTAGAATC
CGGGAGTTCGTGCCGCCTTTTGGGATCAAAGGTCAAGACAATCTGATCAAAGCCATCTTG
TCAGTCACCAAAGAGTACCGCCTGACCCCTGCCTTGGACAGCCTCCGCTGCCGCCGCTGC
ATCATCGTGGGCAATGGAGGCGTTCTTGCCAACAAGTCTCTGGGGTCACGAATTGACGAC
TATGACATTGTGGTGAGACTGAATTCAGCACCAGTGAAAGGCTTTGAGAAGGACGTGGGC
AGCAAAACGACACTGCGCATCACCTACCCCGAGGGCGCCATGCAGCGGCCTGAGCAGTAC
GAGCGCGATTCTCTCTTTGTCCTCGCCGGCTTCAAGTGGCAGGACTTTAAGTGGTTGAAA
TACATCGTCTACAAGGAGAGAGTGAGTGCATCGGATGGCTTCTGGAAATCTGTGGCCACT
CGAGTGCCCAAGGAGCCCCCTGAGATTCGAATCCTCAACCCATATTTCATCCAGGAGGCC
GCCTTCACCCTCATTGGCCTGCCCTTCAACAATGGCCTCATGGGCCGGGGGAACATCCCT
ACCCTTGGCAGTGTGGCAGTGACCATGGCACTACACGGCTGTGACGAGGTGGCAGTCGCA
GGATTTGGCTATGACATGAGCACACCCAACGCACCCCTGCACTACTATGAGACCGTTCGC
ATGGCAGCCATCAAAGAGTCCTGGACGCACAATATCCAGCGAGAGAAAGAGTTTCTGCGG
AAGCTGGTGAAAGCTCGCGTCATCACTGATCTAAGCAGTGGCATCTGA
Protein Properties
Number of Residues 375
Molecular Weight 38741.57
Theoretical pI 8.895
Pfam Domain Function
Signals Not Available
Transmembrane Regions Not Available
Protein Sequence
>CMP-N-acetylneuraminate-beta-1,4-galactoside alpha-2,3-sialyltransferase
MGLLVFVRNLLLALCLFLVLGFLYYSAWKLHLLQWEEDSNSVVLSFDSAGQTLGSEYDRL
GFLLNLDSKLPAELATKYANFSEGACKPGYASALMTAIFPRFSKPAPMFLDDSFRKWARI
REFVPPFGIKGQDNLIKAILSVTKEYRLTPALDSLRCRRCIIVGNGGVLANKSLGSRIDD
YDIVVRLNSAPVKGFEKDVGSKTTLRITYPEGAMQRPEQYERDSLFVLAGFKWQDFKWLK
YIVYKERVSASDGFWKSVATRVPKEPPEIRILNPYFIQEAAFTLIGLPFNNGLMGRGNIP
TLGSVAVTMALHGCDEVAVAGFGYDMSTPNAPLHYYETVRMAAIKESWTHNIQREKEFLR
KLVKARVITDLSSGI
GenBank ID Protein 5454060
UniProtKB/Swiss-Prot ID Q11203
UniProtKB/Swiss-Prot Entry Name SIAT6_HUMAN
PDB IDs Not Available
GenBank Gene ID NM_006279.2
GeneCard ID ST3GAL3
GenAtlas ID ST3GAL3
HGNC ID HGNC:10866
References
General References Not Available