1yon Summary

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Escherichia coli ketopantoate reductase in complex with 2-monophosphoadenosine-5'-diphosphate

The structure was published by Ciulli, A., Lobley, C.M., Tuck, K.L., Smith, A.G., Blundell, T.L., and Abell, C., in 2007 in a paper entitled "pH-tuneable binding of 2'-phospho-ADP-ribose to ketopantoate reductase: a structural and calorimetric study." (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 1.95 Å and deposited in 2005.

The experimental data on which the structure is based was also deposited.

The PDB entry contains the structure of 2-dehydropantoate 2-reductase. This molecule has the UniProt identifier P0A9J4 (PANE_ECOLI)search. The sample contained 303 residues which is 100% of the natural sequence. Out of 303 residues 291 were observed and are deposited in the PDB.

It also contains one or more heterogenic compounds (e.g., ligands, co-factors, ions, modified amino acids, etc.); see here for a complete list.

The molecule is most likely monomeric.

The following tables show cross-reference information to other databases (to obtain a list of all PDB entries sharing the same property or classification, click on the magnifying glass icon):


Chain Name UniProt Name of source organism % of UniProt sequence present in the sample Residues in the sample molecules % of residues observed
A 2-dehydropantoate 2-reductase P0A9J4 (1-303) (PANE_ECOLI)search Escherichia coli K-12search 96% 303 96%


This entry contains 1 unique UniProt protein:

UniProt accession Name Organism PDB
P0A9J4 (1 - 303) 2-dehydropantoate 2-reductase Escherichia coli

Chain Structural classification (SCOP) Structural classification (CATH) Sequence family (Pfam)
A (P0A9J4) Ketopantoate reductase PanEsearch, 6-phosphogluconate dehydrogenase-like, N-terminal domainsearch NAD(P)-binding Rossmann-like Domainsearch, N-(1-d-carboxylethyl)-l-norvaline Dehydrogenase; domain 2search PF02558: Ketopantoate reductase PanE/ApbAsearch, PF08546: Ketopantoate reductase PanE/ApbA C terminalsearch

Chain ID Molecular function (GO) Biological process (GO) Cellular component (GO)
A (P0A9J4) oxidoreductase activitysearch NADP bindingsearch 2-dehydropantoate 2-reductase activitysearch coenzyme bindingsearch oxidoreductase activity, acting on the CH-OH group of donors, NAD or NADP as acceptorsearch oxidation-reduction processsearch pantothenate biosynthetic processsearch pantothenate biosynthetic process from valinesearch cytoplasmsearch

Chain InterPro annotation
A Ketopantoate reductase ApbA/PanEsearch 6-phosphogluconate dehydrogenase, C-terminal-likesearch Dehydrogenase, multihelicalsearch Ketopantoate reductase, N-terminal domainsearch Ketopantoate reductase, C-terminal domainsearch NAD(P)-binding domainsearch