ISDA

Deposition Date 2009-08-14

Release Date 2010-04-07

Last Version Date 2023-09-06

Entry Detail

PDB ID:

3IOI

Keywords:

TRANSFERASE

Title:

Crystal structure of the Fucosylgalactoside alpha N-acetylgalactosaminyltransferase (GTA, cisAB mutant L266G, G268A) in complex with a novel UDP-Gal derived inhibitor (1GW)

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli BL21

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.45 Å

R-Value Free:

0.17

R-Value Work:

0.15

R-Value Observed:

0.16

Space Group:

C 2 2 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Histo-blood group ABO system transferase
Gene (Uniprot):ABO
Mutations:L266G, G268A
Chain IDs:A
Chain Length:298
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P16442 Pfam ID:PF03414 EC:2.4.1.37

Ligand Molecules

1GW

SO4

Primary Citation

Structural and mechanistic basis for a new mode of glycosyltransferase inhibition.

Pesnot, T, Jorgensen, R, Palcic, M.M, Wagner, G.K.Show

Nat.Chem.Biol. 6 321 323 (2010)

PMID: 20364127 DOI: 10.1038/nchembio.343

Abstact

Glycosyltransferases are carbohydrate-active enzymes with essential roles in numerous important biological processes. We have developed a new donor analog for galactosyltransferases that locks a representative target enzyme in a catalytically inactive conformation, thus almost completely abolishing sugar transfer. Results with other galactosyltransferases suggest that this unique mode of glycosyltransferase inhibition may also be generally applicable to other members of this important enzyme family.

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Primary Citation of related structures