Q8UE66 (RIBB_AGRT5) 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:	Atu1895
ORF Names:	AGR_C_3478

Organism

Agrobacterium tumefaciens (strain C58 / ATCC 33970)

Taxonomic identifier

176299 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Alphaproteobacteria › Rhizobiales › Rhizobiaceae › Rhizobium/Agrobacterium group › Agrobacterium

Protein attributes

Sequence length	213 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 Reference 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 – 213	213	3,4-dihydroxy-2-butanone 4-phosphate synthase HAMAP MF_00180		PRO_0000151787
Regions
	Region	27 – 28	2	Substrate binding By similarity
	Region	140 – 144	5	Substrate binding By similarity
Sites
	Metal binding	28	1	Magnesium or manganese 1 By similarity
	Metal binding	28	1	Magnesium or manganese 2 By similarity
	Metal binding	143	1	Magnesium or manganese 2 By similarity
	Binding site	32	1	Substrate By similarity
	Binding site	164	1	Substrate By similarity
	Site	126	1	Essential for catalytic activity By similarity
	Site	164	1	Essential for catalytic activity By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q8UE66 [UniParc]. Last modified June 1, 2002. Version 1. Checksum: 393ED2903062FDA6	FASTA	213	22,976
	10 20 30 40 50 60 MTIAKIEDAI EAISRGEMVI VVDDEDRENE GDIIAASDSI TPQQIAFMMN HARGLVCVAM 70 80 90 100 110 120 PGERLDALDI PLMVSRNTES LKTAFTVSVD YIPGTTTGIS AADRAKTVRA LVSEGSRPED 130 140 150 160 170 180 FARPGHIFPL RANPEGVLGR TGHTEAAVDL CRLAGKFPSG TICEVANDDG TMARLPQLEI 190 200 210 FAERHGLLVV TIKDLVSYLK GEVVEEMVQK QVA

References

[1]	"The genome of the natural genetic engineer Agrobacterium tumefaciens C58." Wood D.W., Setubal J.C., Kaul R., Monks D.E., Kitajima J.P., Okura V.K., Zhou Y., Chen L., Wood G.E., Almeida N.F. Jr., Woo L., Chen Y., Paulsen I.T., Eisen J.A., Karp P.D., Bovee D. Sr., Chapman P., Clendenning J. , Deatherage G., Gillet W., Grant C., Kutyavin T., Levy R., Li M.-J., McClelland E., Palmieri A., Raymond C., Rouse G., Saenphimmachak C., Wu Z., Romero P., Gordon D., Zhang S., Yoo H., Tao Y., Biddle P., Jung M., Krespan W., Perry M., Gordon-Kamm B., Liao L., Kim S., Hendrick C., Zhao Z.-Y., Dolan M., Chumley F., Tingey S.V., Tomb J.-F., Gordon M.P., Olson M.V., Nester E.W. Science 294:2317-2323(2001) [PubMed: 11743193] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: C58 / ATCC 33970.
[2]	"Genome sequence of the plant pathogen and biotechnology agent Agrobacterium tumefaciens C58." Goodner B., Hinkle G., Gattung S., Miller N., Blanchard M., Qurollo B., Goldman B.S., Cao Y., Askenazi M., Halling C., Mullin L., Houmiel K., Gordon J., Vaudin M., Iartchouk O., Epp A., Liu F., Wollam C. , Allinger M., Doughty D., Scott C., Lappas C., Markelz B., Flanagan C., Crowell C., Gurson J., Lomo C., Sear C., Strub G., Cielo C., Slater S. Science 294:2323-2328(2001) [PubMed: 11743194] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: C58 / ATCC 33970.
+	Additional computationally mapped references.

Cross-references

Sequence databases
EMBL GenBank DDBJ	AE007869 Genomic DNA. Translation: AAK87658.1.
PIR	A97588. AE2809.
RefSeq	NP_354873.1. NC_003062.2.
3D structure databases
ProteinModelPortal	Q8UE66.
ModBase	Search...
Protein-protein interaction databases
STRING	Q8UE66.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	1133933.
GenomeReviews	Gene locus Atu1895 in contig AE007869_GR.
KEGG	atu:Atu1895.
PATRIC	20813567. VBIAgrTum91616_1908.
Phylogenomic databases
eggNOG	COG0108.
HOGENOM	HBG735778.
OMA	CELMNED.
PhylomeDB	Q8UE66.
ProtClustDB	CLSK557851.
Enzyme and pathway databases
BioCyc	ATUM176299-1:ATU1895-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_AGRT5

Accession

Primary (citable) accession number: Q8UE66

Entry history

Integrated into UniProtKB/Swiss-Prot:	January 16, 2004
Last sequence update:	June 1, 2002
Last modified:	January 25, 2012
This is version 55 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program