1snn Summary

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3,4-dihydroxy-2-butanone 4-phosphate synthase from Methanococcus jannaschii

The structure was published by Steinbacher, S., Schiffmann, S., Bacher, A., and Fischer, M., in 2004 in a paper entitled "Metal sites in 3,4-dihydroxy-2-butanone 4-phosphate synthase from Methanococcus jannaschii in complex with the substrate ribulose 5-phosphate." (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 1.55 Å and deposited in 2004.

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

This PDB entry contains multiple copies of the structure of 3,4-dihydroxy-2-butanone 4-phosphate synthase.

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 most likely forms homodimers.

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 3,4-dihydroxy-2-butanone 4-phosphate synthase Q60364 (1-227) (RIBB_METJA)search Methanocaldococcus jannaschii DSM 2661search 100% 227 96%
B 3,4-dihydroxy-2-butanone 4-phosphate synthase Q60364 (1-227) (RIBB_METJA)search Methanocaldococcus jannaschii DSM 2661search 100% 227 96%


This entry contains 1 unique UniProt protein:

UniProt accession Name Organism PDB
Q60364 (1 - 227) 3,4-dihydroxy-2-butanone 4-phosphate synthase Methanocaldococcus jannaschii

Chain Structural classification (SCOP) Structural classification (CATH) Sequence family (Pfam)
A, B (Q60364) 3,4-dihydroxy-2-butanone 4-phosphate synthase, DHBP synthase, RibBsearch DHBP synthasesearch PF00926: 3,4-dihydroxy-2-butanone 4-phosphate synthasesearch

Chain ID Molecular function (GO) Biological process (GO)
A, B (Q60364) manganese ion bindingsearch lyase activitysearch 3,4-dihydroxy-2-butanone-4-phosphate synthase activitysearch metal ion bindingsearch magnesium ion bindingsearch riboflavin biosynthetic processsearch

Chain InterPro annotation
A, B 3,4-dihydroxy-2-butanone 4-phosphate synthase, RibBsearch DHBP synthase RibB-like alpha/beta domainsearch