Identification
HMDB Protein ID CDBP00933
Secondary Accession Numbers Not Available
Name Polypeptide N-acetylgalactosaminyltransferase 3
Description Not Available
Synonyms
  1. GalNAc-T3
  2. Polypeptide GalNAc transferase 3
  3. Protein-UDP acetylgalactosaminyltransferase 3
  4. UDP-GalNAc:polypeptide N-acetylgalactosaminyltransferase 3
  5. pp-GaNTase 3
Gene Name GALNT3
Protein Type Enzyme
Biological Properties
General Function Cell wall/membrane/envelope biogenesis
Specific Function Catalyzes the initial reaction in O-linked oligosaccharide biosynthesis, the transfer of an N-acetyl-D-galactosamine residue to a serine or threonine residue on the protein receptor. Has activity toward HIV envelope glycoprotein gp120, EA2, Muc2 and Muc5. Probably glycosylates fibronectin in vivo. Glycosylates FGF23. Plays a central role in phosphate homeostasis.
GO Classification
Biological Process
O-glycan processing
post-translational protein modification
protein O-linked glycosylation via serine
protein O-linked glycosylation via threonine
Cellular Component
perinuclear region of cytoplasm
nucleus
integral to membrane
Golgi membrane
Golgi cisterna membrane
Molecular Function
manganese ion binding
polypeptide N-acetylgalactosaminyltransferase activity
calcium ion binding
Cellular Location
  1. Single-pass type II membrane protein
  2. Golgi apparatus
  3. Golgi stack membrane
Pathways
Gene Properties
Chromosome Location 2
Locus 2q24-q31
SNPs GALNT3
Gene Sequence
>1902 bp
ATGGCTCACCTAAAGCGACTAGTAAAATTACACATTAAAAGACATTACCATAAAAAGTTC
TGGAAGCTTGGTGCAGTAATTTTTTTCTTTATAATAGTTTTGGTTTTAATGCAAAGAGAA
GTAAGTGTTCAATATTCCAAAGAGGAATCAAGGATGGAAAGGAACATGAAAAACAAAAAC
AAGATGTTGGATTTAATGCTAGAAGCTGTAAACAATATTAAGGATGCCATGCCAAAAATG
CAAATAGGAGCACCTGTCAGGCAAAACATTGATGCTGGTGAGAGACCTTGTTTGCAAGGA
TATTATACAGCAGCAGAATTGAAGCCTGTCCTTGACCGTCCACCTCAGGATTCAAATGCA
CCTGGTGCTTCTGGTAAAGCATTCAAGACAACCAATTTAAGTGTTGAAGAGCAAAAGGAA
AAGGAACGTGGGGAAGCTAAACACTGCTTTAATGCTTTCGCAAGTGACAGGATTTCTTTG
CACCGAGATCTTGGACCAGACACTCGACCTCCTGAATGTATTGAACAAAAATTTAAGCGC
TGCCCTCCCCTGCCCACCACCAGTGTCATAATAGTTTTTCATAATGAAGCGTGGTCCACG
TTGCTTAGAACTGTCCACAGTGTGCTCTATTCTTCACCTGCAATACTGCTGAAGGAAATC
ATTTTGGTGGATGATGCTAGTGTAGATGAGTACTTACATGATAAACTAGATGAATATGTA
AAACAATTTTCTATAGTAAAAATAGTCAGACAAAGAGAAAGAAAAGGTCTGATCACTGCT
CGGTTGCTAGGAGCAACAGTCGCAACAGCTGAAACGCTCACATTTTTAGATGCTCACTGT
GAGTGTTTCTATGGTTGGCTAGAACCTCTGTTGGCCAGAATAGCTGAGAACTACACGGCT
GTCGTAAGTCCAGATATTGCATCCATAGATCTGAACACGTTTGAATTCAACAAACCTTCT
CCTTATGGAAGTAACCATAACCGTGGAAATTTTGACTGGAGTCTTTCATTTGGCTGGGAG
TCGCTTCCTGATCATGAGAAGCAAAGAAGGAAAGATGAAACCTACCCAATTAAAACACCC
ACTTTTGCAGGAGGACTTTTTTCCATATCAAAAGAATATTTTGAGTATATTGGAAGCTAT
GATGAAGAAATGGAAATCTGGGGAGGTGAAAATATAGAAATGTCTTTCAGAGTATGGCAA
TGTGGTGGGCAGTTGGAGATTATGCCTTGCTCTGTTGTTGGACATGTTTTTCGCAGCAAA
AGCCCTCATAGCTTTCCAAAAGGCACTCAGGTGATTGCTAGAAACCAAGTTCGCCTTGCA
GAAGTCTGGATGGATGAATACAAGGAAATATTTTATAGGAGAAATACAGATGCAGCAAAA
ATTGTTAAACAAAAAGCATTTGGTGATCTTTCAAAAAGATTTGAAATAAAACACCGCCTT
CAGTGTAAAAATTTTACATGGTATCTGAACAACATTTATCCAGAGGTGTATGTGCCAGAC
CTTAATCCTGTTATATCTGGATACATTAAAAGCGTTGGTCAGCCTCTATGTCTGGATGTT
GGAGAAAACAATCAAGGAGGCAAACCATTAATTATGTATACATGTCATGGACTTGGGGGA
AACCAGTACTTTGAATACTCTGCTCAACATGAAATTCGGCACAACATCCAGAAGGAATTA
TGTCTTCATGCTGCTCAAGGTCTCGTTCAGCTGAAGGCATGTACCTACAAAGGTCACAAG
ACAGTTGTCACTGGAGAGCAGATATGGGAGATCCAGAAGGATCAACTTCTATACAATCCA
TTCTTAAAAATGTGCCTTTCAGCAAATGGAGAGCATCCAAGTTTAGTGTCATGCAACCCA
TCAGATCCACTCCAAAAATGGATACTTAGCCAAAATGATTAA
Protein Properties
Number of Residues 633
Molecular Weight 72609.79
Theoretical pI 7.983
Pfam Domain Function
Signals Not Available
Transmembrane Regions Not Available
Protein Sequence
>Polypeptide N-acetylgalactosaminyltransferase 3
MAHLKRLVKLHIKRHYHKKFWKLGAVIFFFIIVLVLMQREVSVQYSKEESRMERNMKNKN
KMLDLMLEAVNNIKDAMPKMQIGAPVRQNIDAGERPCLQGYYTAAELKPVLDRPPQDSNA
PGASGKAFKTTNLSVEEQKEKERGEAKHCFNAFASDRISLHRDLGPDTRPPECIEQKFKR
CPPLPTTSVIIVFHNEAWSTLLRTVHSVLYSSPAILLKEIILVDDASVDEYLHDKLDEYV
KQFSIVKIVRQRERKGLITARLLGATVATAETLTFLDAHCECFYGWLEPLLARIAENYTA
VVSPDIASIDLNTFEFNKPSPYGSNHNRGNFDWSLSFGWESLPDHEKQRRKDETYPIKTP
TFAGGLFSISKEYFEYIGSYDEEMEIWGGENIEMSFRVWQCGGQLEIMPCSVVGHVFRSK
SPHSFPKGTQVIARNQVRLAEVWMDEYKEIFYRRNTDAAKIVKQKAFGDLSKRFEIKHRL
QCKNFTWYLNNIYPEVYVPDLNPVISGYIKSVGQPLCLDVGENNQGGKPLIMYTCHGLGG
NQYFEYSAQHEIRHNIQKELCLHAAQGLVQLKACTYKGHKTVVTGEQIWEIQKDQLLYNP
FLKMCLSANGEHPSLVSCNPSDPLQKWILSQND
GenBank ID Protein 62822129
UniProtKB/Swiss-Prot ID Q14435
UniProtKB/Swiss-Prot Entry Name GALT3_HUMAN
PDB IDs Not Available
GenBank Gene ID AC009495
GeneCard ID GALNT3
GenAtlas ID GALNT3
HGNC ID HGNC:4125
References
General References Not Available