Home/GT Families/GT43/GlcAT-I
GlcAT-I
Drosophila melanogaster · Galactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferase I (EC 2.4.1.135)
GT43Model organism · annotation ≥ 4Fold GT-AInverting
External resources
Identification and annotation
| CAZy family | GT43 · CAZy entry |
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| Gene symbol | GlcAT-I |
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| Synonyms / alternate names | - Beta-1,3-glucuronyltransferase I
- Glucuronosyltransferase I
- UDP-GlcUA:Gal beta-1,3-Gal-R glucuronyltransferase
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| UniProt accession | O97422 |
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| NCBI Gene ID | 251900 |
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| Source species | Drosophila melanogaster |
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| Taxonomic domain | Eukaryota |
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| UniProt annotation level | 5 |
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Function and localisation
| Enzyme function | Galactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferase I (EC 2.4.1.135) |
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| Subcellular location | Golgi apparatus membrane |
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Structure and mechanism
| Fold type | GT-A |
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| Catalytic mechanism | Inverting |
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| Cation dependence | Yes (Mn2+) |
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| Oligomeric state | not curated |
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| PDB structures | not curated |
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Donor and acceptor specificity
| Sugar nucleotide donor | UDP-alpha-D-glucuronate |
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| Donor CCD code(s) | UGA |
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| Acceptor substrate(s) | 3-O-(beta-D-galactosyl-(1->3)-beta-D-galactosyl-(1->4)-beta-D-xylosyl)-L-seryl-[protein] |
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| Acceptor CCD / GlycoCT | not curated |
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Protein sequences
Full protein sequence
306 aa
MSEVRIRPRQVLILIIVFLVVLMMVHRNGKRTCQGPEYLQAMFVQGDTLPTIYAVTPTYPRPAQKAELTRLSHLFMLLPHLHWIIVEDTNATTPLVRNLLDRAGLEKRSTLLNIKTPSEFKLKGKDPNWIKPRGVEQRNLALAWLRNHVDVDRHSIVFFMDDDNSYSTELFAEMSKIERGRVGVWPVGLVGGLMVERPLLTEDGTKVTGFNAAWRPERPFPIDMAAFAISMDLFIRNPQATFSYEVQRGYQESEILRHLTTRDQLQPLANRCTDVLVWHTRTEKTKLAAEEALLKKGQRSDGGMEV
Catalytic domain sequence
235 aa
PTIYAVTPTYPRPAQKAELTRLSHLFMLLPHLHWIIVEDTNATTPLVRNLLDRAGLEKRSTLLNIKTPSEFKLKGKDPNWIKPRGVEQRNLALAWLRNHVDVDRHSIVFFMDDDNSYSTELFAEMSKIERGRVGVWPVGLVGGLMVERPLLTEDGTKVTGFNAAWRPERPFPIDMAAFAISMDLFIRNPQATFSYEVQRGYQESEILRHLTTRDQLQPLANRCTDVLVWHTRTEK
