B3EM42 (ISPH_CHLPB) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
4-hydroxy-3-methylbut-2-enyl diphosphate reductase
EC=1.17.1.2

Gene names

Name:	ispH
Ordered Locus Names:	Cphamn1_0456

Organism

Chlorobium phaeobacteroides (strain BS1) [Complete proteome] [HAMAP]

Taxonomic identifier

331678 [NCBI]

Taxonomic lineage

Bacteria › Chlorobi › Chlorobia › Chlorobiales › Chlorobiaceae › Chlorobium/Pelodictyon group › Chlorobium

Protein attributes

Sequence length	325 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Function	Converts 1-hydroxy-2-methyl-2-(E)-butenyl 4-diphosphate into isopentenyl diphosphate (IPP) and dimethylallyl diphosphate (DMAPP) By similarity. HAMAP MF_00191
Catalytic activity	Isopentenyl diphosphate + NAD(P)+ + H2O = (E)-4-hydroxy-3-methylbut-2-en-1-yl diphosphate + NAD(P)H. HAMAP MF_00191 Dimethylallyl diphosphate + NAD(P)+ + H2O = (E)-4-hydroxy-3-methylbut-2-en-1-yl diphosphate + NAD(P)H. HAMAP MF_00191
Cofactor	Binds 1 3Fe-4S cluster By similarity. HAMAP MF_00191
Pathway	Isoprenoid biosynthesis; dimethylallyl diphosphate biosynthesis; dimethylallyl diphosphate from (2E)-4-hydroxy-3-methylbutenyl diphosphate: step 1/1. HAMAP MF_00191 Isoprenoid biosynthesis; isopentenyl diphosphate biosynthesis via DXP pathway; isopentenyl diphosphate from 1-deoxy-D-xylulose 5-phosphate: step 6/6. HAMAP MF_00191
Sequence similarities	Belongs to the IspH family.

Ontologies

Keywords
Biological process	Isoprene biosynthesis
Ligand	3Fe-4S Iron Iron-sulfur Metal-binding NADP
Molecular function	Oxidoreductase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	isopentenyl diphosphate biosynthetic process, mevalonate-independent pathway Inferred from electronic annotation. Source: InterPro
Molecular function	3 iron, 4 sulfur cluster binding Inferred from electronic annotation. Source: UniProtKB-KW 4-hydroxy-3-methylbut-2-en-1-yl diphosphate reductase 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 – 325	325	4-hydroxy-3-methylbut-2-enyl diphosphate reductase HAMAP MF_00191		PRO_1000098938

Sequences

	Sequence		Length	Mass (Da)
	B3EM42 [UniParc]. Last modified July 22, 2008. Version 1. Checksum: D7AB86F8BBDAA486	FASTA	325	36,198
	10 20 30 40 50 60 MKVHLDRTSS GFCIGVQGTI HLAEEKLEEL DSKLYCLGDI VHNEVEVKRL EDLGLITIDN 70 80 90 100 110 120 EEYNKLKHAH VLVRAHGEPP STYKRADSNE LSITDSTCPV VSKLQRTARL LFELGFQIII 130 140 150 160 170 180 YGKKTHPEVI GINGQCADQA VIIKHADLSV PEETDPIDFT RQTALISQTT MDVPGFYILK 190 200 210 220 230 240 KNLESLFADR TDAAEQKSTH SWKTIRDIDI TAEMTGICPL PDLVYKDTIC RQVSSRNAKL 250 260 270 280 290 300 HDFAAANDII IFVAGKKSSN GQVLFNICRE SNPRSYFIAD QTGLQDEWFY DNGRPVGSVG 310 320 VCGATSTPMW LLENVAHSIE QTYAG

References

[1]

"Complete sequence of Chlorobium phaeobacteroides BS1." US DOE Joint Genome Institute Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H., Bruce D., Goodwin L., Pitluck S., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N., Ovchinnikova G., Li T., Liu Z., Zhao F. , Overmann J., Bryant D.A., Richardson P. Submitted (JUN-2008) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: BS1.

Cross-references

Sequence databases
EMBL GenBank DDBJ	CP001101 Genomic DNA. Translation: ACE03420.1.
RefSeq	YP_001958901.1. NC_010831.1.
3D structure databases
ModBase	Search...
Protein-protein interaction databases
STRING	B3EM42.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	6374120.
GenomeReviews	Gene locus Cphamn1_0456 in contig CP001101_GR.
KEGG	cpb:Cphamn1_0456.
PATRIC	21382976. VBIChlPha121022_0498.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	HBG335228.
OMA	HNQGKRY.
ProtClustDB	PRK01045.
Family and domain databases
HAMAP	MF_00191. IspH. [Tree]
InterPro	IPR003451. LytB. [Graphical view]
KO	K03527.
Pfam	PF02401. LYTB. 1 hit. [Graphical view]
TIGRFAMs	TIGR00216. IspH_lytB. 1 hit.
ProtoNet	Search...

Entry information

Entry name

ISPH_CHLPB

Accession

Primary (citable) accession number: B3EM42

Entry history

Integrated into UniProtKB/Swiss-Prot:	March 24, 2009
Last sequence update:	July 22, 2008
Last modified:	January 25, 2012
This is version 28 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program