ISDA: 1K3F

Deposition Date 2001-10-02

Release Date 2001-10-10

Last Version Date 2024-04-03

Entry Detail

PDB ID:

1K3F

Keywords:

TRANSFERASE

Title:

Uridine Phosphorylase from E. coli, Refined in the Monoclinic Crystal Lattice

Biological Source:

Source Organism(s):

Escherichia coli (Taxon ID: 562)

Expression System(s):

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.50 Å

R-Value Work:

0.18

Space Group:

P 1 21 1

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:uridine phosphorylase
Gene (Uniprot):udp
Chain IDs:A, B, C, D, E, F
Chain Length:253
Number of Molecules:6
Biological Source:Escherichia coli

UniProt ID:P12758 Pfam ID:PF01048 EC:2.4.2.3

Ligand Molecules

Primary Citation

Atomic structure at 2.5 A resolution of uridine phosphorylase from E. coli as refined in the monoclinic crystal lattice.

Morgunova, E.Yu, Mikhailov, A.M, Popov, A.N, Blagova, E.V, Smirnova, E.A, Vainshtein, B.K, Mao, C, Armstrong, S.R, Ealick, S.E, Komissarov, A.A, Linkova, E.V, Burlakova, A.A, Mironov, A.S, Debabov, V.G.Show

FEBS Lett. 367 183 187 (1995)

PMID: 7796917 DOI: 10.1016/0014-5793(95)00489-V

Abstact

Uridine phosphorylase from E. coli (Upase) has been crystallized using vapor diffusion technique in a new monoclinic crystal form. The structure was determined by the molecular replacement method at 2.5 A resolution. The coordinates of the trigonal crystal form were used as a starting model and the refinement by the program XPLOR led to the R-factor of 18.6%. The amino acid fold of the protein was found to be the same as that in the trigonal crystals. The positions of flexible regions were refined. The conclusion about the involvement in the active site is in good agreement with the results of the biochemical experiments.

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Primary Citation of related structures

Abstact

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