GlycosylTransferase Family 42

Activities in FamilyCMP-NeuAc α-2,3-sialyltransferase (EC 2.4.99.-)
Mechanism Inverting
NoteThese enzymes use CMP-beta-N-acetylneuraminate as the sugar donor
External resourcesCAZypedia;
Commercial Enzyme Provider(s)CHEMILY;
Statistics GenBank accession (307); Uniprot accession (50); PDB accession (9); 3D entries (2); cryst (0)
Bacteria
Protein Name EC#OrganismGenBankUniprot
PDB/3D Carbohydrate Ligands Resolution (Å)
 α-2,3-sialyltransferase (Cst-I) 2.4.99.4 Campylobacter jejuni OH4384 AAF13495.1
AAS36261.1
AAT23232.1
Q9RGF1
2P2V[A] 1.85
2P56[A] 2.20
 bifunctional CMP-Neu5Ac: α-2,3/-2,8-sialyltransferase (CstII;Cst-II) 2.4.99.4
2.4.99.8
Campylobacter jejuni OH4384 AAF31771.1
AAO96668.1
AAT17965.1
ABA06995.1
ABA09514.1
ABH12650.1
ABI05854.1
ACK29125.1
CAF04166.1
CAK26615.1
Q9LAK3
1RO7[A,B,C,D] 1.80
1RO8[A,B] 2.05
2DRJ[A] 2.25
2WQQ[A] 2.25
2X61[A,B] α-D-Neup5Ac-(2-3)-β-D-Galp-(1-3)-β-D-GalpNAc
1.95
2X62[A,B] 2.20
2X63[A] 2.00
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