ISDA

Deposition Date 2014-10-17

Release Date 2015-04-08

Last Version Date 2024-01-10

Entry Detail

PDB ID:

4V39

Keywords:

TRANSFERASE

Title:

Apo-structure of alpha2,3-sialyltransferase variant 2 from Pasteurella dagmatis

Biological Source:

Source Organism:

PASTEURELLA DAGMATIS (Taxon ID: 754)

Host Organism:

ESCHERICHIA COLI

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.60 Å

R-Value Free:

0.26

R-Value Work:

0.19

R-Value Observed:

0.19

Space Group:

C 1 2 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:SIALYLTRANSFERASE
Mutations:YES
Chain IDs:A
Chain Length:388
Number of Molecules:1
Biological Source:PASTEURELLA DAGMATIS

UniProt ID:K9UUI6 Pfam ID:PF11477

Primary Citation

Complete Switch from Alpha2,3- to Alpha2,6-Regioselectivity in Pasteurella Dagmatis Beta-D-Galactoside Sialyltransferase by Active-Site Redesign

Schmoelzer, K, Czabany, T, Pavkov-Keller, T, Luley-Goedl, C, Ribitsch, D, Schwab, H, Gruber, K, Nidetzky, B.Show

Chem.Commun.(Camb.) 51 3083 ? (2015)

PMID: 25619424 DOI: 10.1039/C4CC09772F

Abstact

Structure-guided active-site redesign of a family GT-80 β-D-galactoside sialyltransferase (from Pasteurella dagmatis) to change enzyme regioselectivity from α-2,3 in the wild type to α-2,6 in a P7H-M117A double mutant is reported. Biochemical data for sialylation of lactose together with protein crystal structures demonstrate highly precise enzyme engineering.

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Primary Citation of related structures