Reviewed, UniProtKB/Swiss-Prot A4J2L3 (RIBB_DESRM)

Names and origin

Protein names

Recommended name:
    3,4-dihydroxy-2-butanone 4-phosphate synthase
      Short name=DHBP synthase
    EC=4.1.99.12

Gene names

Name:	ribB
Ordered Locus Names:	Dred_0778

Organism

Desulfotomaculum reducens (strain MI-1) [Complete proteome] [HAMAP]

Taxonomic identifier

349161 [NCBI]

Taxonomic lineage

Bacteria › Firmicutes › Clostridia › Clostridiales › Peptococcaceae › Desulfotomaculum

Protein attributes

Sequence length	217 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Inferred from homology.

General annotation (Comments)

Function	Catalyzes the conversion of D-ribulose 5-phosphate to formate and 3,4-dihydroxy-2-butanone 4-phosphate By similarity.
Catalytic activity	D-ribulose 5-phosphate = formate + L-3,4-dihydroxybutan-2-one 4-phosphate. HAMAP MF_00180
Cofactor	Binds 2 divalent metal cations per subunit. Magnesium or manganese By similarity.
Pathway	Cofactor biosynthesis; riboflavin biosynthesis; 2-hydroxy-3-oxobutyl phosphate from D-ribulose 5-phosphate: step 1/1. HAMAP MF_00180
Subunit structure	Homodimer By similarity.
Sequence similarities	Belongs to the DHBP synthase family.

Ontologies

Keywords
Biological process	Riboflavin biosynthesis
Ligand	Magnesium Manganese Metal-binding
Molecular function	Lyase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	riboflavin biosynthetic process Inferred from electronic annotation. Source: HAMAP
Molecular function	3,4-dihydroxy-2-butanone-4-phosphate synthase activity Inferred from electronic annotation. Source: HAMAP magnesium ion binding Inferred from electronic annotation. Source: HAMAP manganese ion binding Inferred from electronic annotation. Source: HAMAP
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 217	217	3,4-dihydroxy-2-butanone 4-phosphate synthase HAMAP MF_00180		PRO_1000071650
Regions
	Region	37 – 38	2	Substrate binding By similarity
	Region	150 – 154	5	Substrate binding By similarity
Sites
	Metal binding	38	1	Magnesium or manganese 1 By similarity
	Metal binding	38	1	Magnesium or manganese 2 By similarity
	Metal binding	153	1	Magnesium or manganese 2 By similarity
	Binding site	42	1	Substrate By similarity
	Binding site	174	1	Substrate By similarity
	Site	136	1	Essential for catalytic activity By similarity
	Site	174	1	Essential for catalytic activity By similarity

Sequences

	Sequence		Length	Mass (Da)
	A4J2L3-1 [UniParc]. Last modified May 1, 2007. Version 1. Checksum: 2854E4C712045632	FASTA	217	23,866
	10 20 30 40 50 60 MNQSLLTQFG DPFERVERAL RSLRNGNGVL VTDDENRENE GDLIFPAQTL NEVQMAMLIR 70 80 90 100 110 120 ECSGIVCLCL TDEKVRSLGL PMMVENNSSR FKTAFTVTIE AAHGVTTGVS AADRVKTVKT 130 140 150 160 170 180 AVAENAKPED LNRPGHVFPL RACPGGVLER QGHTEATVDL MKLAGLQPYG VLCELTNIDG 190 200 210 TMARLPEVVT FANKNNIPVV TIDDLIMYRK QHQKKVS

References

[1]

"Complete sequence of Desulfotomaculum reducens MI-1." Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S., Sims D., Brettin T., Bruce D., Han C., Tapia R., Schmutz J., Larimer F. , Land M., Hauser L., Kyrpides N., Kim E., Tebo B.M., Richardson P. Submitted (MAR-2007) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].

Cross-references

Sequence databases
EMBLGenBankDDBJ	CP000612 Genomic DNA. Translation: ABO49316.1.
RefSeq	YP_001112141.1.
3D structure databases
ModBase	Search...
Protein-protein interaction databases
STRING	A4J2L3.
Genome annotation databases
GeneID	4955452.
GenomeReviews	Gene locus Dred_0778 in contig CP000612_GR.
KEGG	drm:Dred_0778.
Organism-specific databases
CMR	Search...
Phylogenomic databases
OMA	YGSGIVC.
Family and domain databases
HAMAP	MF_00180. [Tree]
InterPro	IPR017945. DHBP_synth_RibB-like_a/b_dom. IPR000422. DHBP_synthase_RibB. [Graphical view]
Gene3D	G3DSA:3.90.870.10. DHBP_synth_RibB-like_a/b_dom. 1 hit.
Pfam	PF00926. DHBP_synthase. 1 hit. [Graphical view]
ProDom	PD003034. DHBP_synthase. 1 hit. [Graphical view] [Entries sharing at least one domain]
TIGRFAMs	TIGR00506. ribB. 1 hit.
ProtoNet	Search...

Entry information

Entry name

RIBB_DESRM

Accession

Primary (citable) accession number: A4J2L3

Entry history

Integrated into UniProtKB/Swiss-Prot:	February 26, 2008
Last sequence update:	May 1, 2007
Last modified:	November 3, 2009
This is version 17 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)