Reviewed, UniProtKB/Swiss-Prot B8FLF4 (RIBB_DESAA)

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:	Dalk_3412

Organism

Desulfatibacillum alkenivorans (strain AK-01) [Complete proteome] [HAMAP]

Taxonomic identifier

439235 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Deltaproteobacteria › Desulfobacterales › Desulfobacteraceae › Desulfatibacillum

Protein attributes

Sequence length	215 AA.
Sequence status	Complete.
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. HAMAP MF_00180
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. HAMAP MF_00180
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. HAMAP MF_00180
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 – 215	215	3,4-dihydroxy-2-butanone 4-phosphate synthase HAMAP MF_00180		PRO_1000118434
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	175	1	Substrate By similarity
	Site	136	1	Essential for catalytic activity By similarity
	Site	175	1	Essential for catalytic activity By similarity

Sequences

	Sequence		Length	Mass (Da)
	B8FLF4-1 [UniParc]. Last modified March 3, 2009. Version 1. Checksum: A8ADDF1B1B30F227	FASTA	215	23,280
	10 20 30 40 50 60 MNQTLLEQFG NARERVEKGL QALRDGQGVL VADDENRENE GDLIFSAESL TEAQMAMLIR 70 80 90 100 110 120 ECSGIVCLCM PDEKIRSLEL PMMVEDNSSR YGTAFTVSIE AAQGVTTGVS AKDRVTTVKT 130 140 150 160 170 180 AAADGAKPAD LSKPGHVFPL RARPGGVLER RGHTEATVDM MRLAGLKNPC GVLCELTNPD 190 200 210 GTMARLPQLA DFAKKHGMVL LTVEDLAAYR ESQEN

References

[1]

"Complete sequence of Desulfatibacillum alkenivorans AK-01." Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H., Bruce D., Goodwin L., Pitluck S., Chertkov O., Brettin T., Detter J.C., Han C., Larimer F., Land M., Hauser L., Kyrpides N., Ovchinnikova G., Wawrik B., Richardson P. Submitted (DEC-2008) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].

Cross-references

Sequence databases
EMBL GenBank DDBJ	CP001322 Genomic DNA. Translation: ACL05100.1.
RefSeq	YP_002432568.1.
3D structure databases
SMR	B8FLF4. Positions 1-214.
ModBase	Search...
Genome annotation databases
GeneID	7167356.
GenomeReviews	Gene locus Dalk_3412 in contig CP001322_GR.
KEGG	dal:Dalk_3412.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	HBG735778.
OMA	RGHTEAT.
Family and domain databases
HAMAP	MF_00180. RibB. [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]
TIGRFAMs	TIGR00506. ribB. 1 hit.
ProtoNet	Search...

Entry information

Entry name

RIBB_DESAA

Accession

Primary (citable) accession number: B8FLF4

Entry history

Integrated into UniProtKB/Swiss-Prot:	April 14, 2009
Last sequence update:	March 3, 2009
Last modified:	February 9, 2010
This is version 10 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)