Q1R6T4 (RIBB_ECOUT) Reviewed, UniProtKB/Swiss-Prot

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:	UTI89_C3483

Organism

Escherichia coli (strain UTI89 / UPEC) [Complete proteome] [HAMAP]

Taxonomic identifier

364106 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Gammaproteobacteria › Enterobacteriales › Enterobacteriaceae › Escherichia

Protein attributes

Sequence length	217 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.
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: UniProtKB-KW
Molecular function	3,4-dihydroxy-2-butanone-4-phosphate synthase activity Inferred from electronic annotation. Source: EC metal ion binding Inferred from electronic annotation. Source: UniProtKB-KW
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_1000040607
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)
	Q1R6T4 [UniParc]. Last modified May 16, 2006. Version 1. Checksum: C8220A407A342609	FASTA	217	23,339
	10 20 30 40 50 60 MNQTLLSSFG TPFERVENAL AALREGRGVM VLDDEDRENE GDMIFPAETM TVEQMALTIR 70 80 90 100 110 120 HGSGIVCLCI TDDRRKQLDL PMMVENNTSA YGTGFTVTIE AAEGVTTGVS AADRITTVRA 130 140 150 160 170 180 AIADGAKPSD LNRPGHVFPL RAQAGGVLTR GGHTEATIDL MTLAGFKPAG VLCELTNDDG 190 200 210 TMARAPECIE FANKHNMALV TIEDLVAYRQ AHERKAS

References

[1]

"Identification of genes subject to positive selection in uropathogenic strains of Escherichia coli: a comparative genomics approach." Chen S.L., Hung C.-S., Xu J., Reigstad C.S., Magrini V., Sabo A., Blasiar D., Bieri T., Meyer R.R., Ozersky P., Armstrong J.R., Fulton R.S., Latreille J.P., Spieth J., Hooton T.M., Mardis E.R., Hultgren S.J., Gordon J.I. Proc. Natl. Acad. Sci. U.S.A. 103:5977-5982(2006) [PubMed: 16585510] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: UTI89 / UPEC.

Cross-references

Sequence databases
EMBL GenBank DDBJ	CP000243 Genomic DNA. Translation: ABE08930.1.
RefSeq	YP_542461.1. NC_007946.1.
3D structure databases
ProteinModelPortal	Q1R6T4.
SMR	Q1R6T4. Positions 1-217.
ModBase	Search...
Protein-protein interaction databases
STRING	Q1R6T4.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
EnsemblBacteria	EBESCT00000068642; EBESCP00000066120; EBESCG00000067689.
GeneID	3993889.
GenomeReviews	Gene locus UTI89_C3483 in contig CP000243_GR.
KEGG	eci:UTI89_C3483.
PATRIC	18456466. VBIEscCol42261_3450.
Organism-specific databases
CMR	Search...
Phylogenomic databases
eggNOG	COG0108.
GeneTree	EBGT00050000011873.
HOGENOM	HBG735778.
OMA	GDMIFAA.
ProtClustDB	PRK03353.
Enzyme and pathway databases
BioCyc	ECOL364106:UTI89_C3483-MONOMER.
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.
KO	K02858.
Pfam	PF00926. DHBP_synthase. 1 hit. [Graphical view]
SUPFAM	SSF55821. DHBP_synth_RibB-like_a/b_dom. 1 hit.
TIGRFAMs	TIGR00506. RibB. 1 hit.
ProtoNet	Search...

Entry information

Entry name

RIBB_ECOUT

Accession

Primary (citable) accession number: Q1R6T4

Entry history

Integrated into UniProtKB/Swiss-Prot:	January 15, 2008
Last sequence update:	May 16, 2006
Last modified:	January 25, 2012
This is version 39 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program