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Glycosyltransferase Curated Online Resource for Enzymology

Family-organised sequence, structure, mechanism and substrate-specificity records for the CAZy glycosyltransferases

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ALG6

Saccharomyces cerevisiae (strain ATCC 204508 / S288c) · Dolichyl pyrophosphate Man9GlcNAc2 alpha-1,3-glucosyltransferase (EC 2.4.1.267)

GT57Model organism · annotation ≥ 4Fold GT-CInverting2 PDB structure(s)

External resources

UniProt Q12001AlphaFold modelInterPro domainsNCBI Gene 854163CAZy GT57PDB 6SNHPDB 6SNI

Identification and annotation

CAZy familyGT57 · CAZy entry
Gene symbolALG6
Synonyms / alternate names
  • Asparagine-linked glycosylation protein 6
  • Dol-P-Glc:Man(9)GlcNAc(2)-PP-Dol alpha-1,3-glucosyltransferase
  • Dolichyl-P-Glc:Man9GlcNAc2-PP-dolichyl glucosyltransferase
UniProt accessionQ12001
NCBI Gene ID854163
Source speciesSaccharomyces cerevisiae (strain ATCC 204508 / S288c)
Taxonomic domainEukaryota
UniProt annotation level5

Function and localisation

Enzyme functionDolichyl pyrophosphate Man9GlcNAc2 alpha-1,3-glucosyltransferase (EC 2.4.1.267)
Subcellular locationEndoplasmic reticulum membrane

Structure and mechanism

Fold typeGT-C
Catalytic mechanismInverting
Cation dependenceNo
Oligomeric statenot curated
PDB structures6SNH, 6SNI

Donor and acceptor specificity

Sugar nucleotide donornot curated
Donor CCD code(s)not curated
Acceptor substrate(s)
  • an alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-alpha-D-GlcNAc-diphospho-di-trans,poly-cis-dolichol
  • a di-trans,poly-cis-dolichyl beta-D-glucosyl phosphate
Acceptor CCD / GlycoCTnot curated

Protein sequences

Full protein sequence

544 aa 
MAIGKRLLVNKPAEESFYASPMYDFLYPFRPVGNQWLPEYIIFVCAVILRCTIGLGPYSGKGSPPLYGDFEAQRHWMEITQHLPLSKWYWYDLQYWGLDYPPLTAFHSYLLGLIGSFFNPSWFALEKSRGFESPDNGLKTYMRSTVIISDILFYFPAVIYFTKWLGRYRNQSPIGQSIAASAILFQPSLMLIDHGHFQYNSVMLGLTAYAINNLLDEYYAMAAVCFVLSICFKQMALYYAPIFFAYLLSRSLLFPKFNIARLTVIAFATLATFAIIFAPLYFLGGGLKNIHQCIHRIFPFARGIFEDKVANFWCVTNVFVKYKERFTIQQLQLYSLIATVIGFLPAMIMTLLHPKKHLLPYVLIACSMSFFLFSFQVHEKTILIPLLPITLLYSSTDWNVLSLVSWINNVALFTLWPLLKKDGLHLQYAVSFLLSNWLIGNFSFITPRFLPKSLTPGPSISSINSDYRRRSLLPYNVVWKSFIIGTYIAMGFYHFLDQFVAPPSKYPDLWVLLNCAVGFICFSIFWLWSYYKIFTSGSKSMKDL

Catalytic domain sequence

482 aa 
VILRCTIGLGPYSGKGSPPLYGDFEAQRHWMEITQHLPLSKWYWYDLQYWGLDYPPLTAFHSYLLGLIGSFFNPSWFALEKSRGFESPDNGLKTYMRSTVIISDILFYFPAVIYFTKWLGRYRNQSPIGQSIAASAILFQPSLMLIDHGHFQYNSVMLGLTAYAINNLLDEYYAMAAVCFVLSICFKQMALYYAPIFFAYLLSRSLLFPKFNIARLTVIAFATLATFAIIFAPLYFLGGGLKNIHQCIHRIFPFARGIFEDKVANFWCVTNVFVKYKERFTIQQLQLYSLIATVIGFLPAMIMTLLHPKKHLLPYVLIACSMSFFLFSFQVHEKTILIPLLPITLLYSSTDWNVLSLVSWINNVALFTLWPLLKKDGLHLQYAVSFLLSNWLIGNFSFITPRFLPKSLTPGPSISSINSDYRRRSLLPYNVVWKSFIIGTYIAMGFYHFLDQFVAPPSKYPDLWVLLNCAVGFICFSIFWLW
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