Reviewed, UniProtKB/Swiss-Prot A8FLU3 (ISPH_CAMJ8)

Names and origin

Protein names

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

Gene names

Name:	ispH
Synonyms:	lytB
Ordered Locus Names:	C8J_0831

Organism

Campylobacter jejuni subsp. jejuni serotype O:6 (strain 81116 / NCTC 11828) [Complete proteome] [HAMAP]

Taxonomic identifier

407148 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Epsilonproteobacteria › Campylobacterales › Campylobacteraceae › Campylobacter

Protein attributes

Sequence length	277 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
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.
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.
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: HAMAP oxidation reduction Inferred from electronic annotation. Source: UniProtKB-KW terpenoid biosynthetic process Inferred from electronic annotation. Source: HAMAP
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: HAMAP iron 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 – 277	277	4-hydroxy-3-methylbut-2-enyl diphosphate reductase HAMAP MF_00191		PRO_0000315384

Sequences

	Sequence		Length	Mass (Da)
	A8FLU3-1 [UniParc]. Last modified November 13, 2007. Version 1. Checksum: BD428735DC28C73A	FASTA	277	31,523
	10 20 30 40 50 60 MIIELAKNYG FCFGVKRAIK KAEQIKDAAT IGPLIHNNEE ISRLQKNFNV KTLENIQALS 70 80 90 100 110 120 NEKKAIIRTH GITKQDLEEL RKKDIEIFDA TCPFVTKPQQ ICEQMSKEGY EVVIFGDENH 130 140 150 160 170 180 PEVKGVKSYV STKAYVVLDK KELQNIKLPN KIAVVSQTTK KPEHFMEIVN FLILKTKEVR 190 200 210 220 230 240 VFNTICDATF KNQDAIKELS LKSDVMVVVG GKNSANTKQL FLIAKTNCED SYLIETEEEL 250 260 270 KKEWFLDKKH CGISAGASTP DWIIQKVIAK IENFKIN

References

	« Hide 'large scale' referencesShow 'large scale' references »
[1]	Woesten M.M.S.M. Submitted (DEC-1997) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
[2]	"The complete genome sequence of Campylobacter jejuni strain 81116 (NCTC11828)." Pearson B.M., Gaskin D.J.H., Segers R.P.A.M., Wells J.M., Nuijten P.J.M., van Vliet A.H.M. J. Bacteriol. 189:8402-8403(2007) [PubMed: 17873037] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].

Cross-references

Sequence databases
EMBLGenBankDDBJ	X89371 Genomic DNA. Translation: CAA61555.1. CP000814 Genomic DNA. Translation: ABV52430.1.
PIR	PC4273.
RefSeq	YP_001482407.1.
3D structure databases
ModBase	Search...
Protein-protein interaction databases
STRING	A8FLU3.
Genome annotation databases
GeneID	5616971.
GenomeReviews	Gene locus C8J_0831 in contig CP000814_GR.
KEGG	cju:C8J_0831.
Organism-specific databases
CMR	Search...
Phylogenomic databases
OMA	KNDICYA.
Family and domain databases
HAMAP	MF_00191. [Tree]
InterPro	IPR003451. LytB. [Graphical view]
Pfam	PF02401. LYTB. 1 hit. [Graphical view]
TIGRFAMs	TIGR00216. ispH_lytB. 1 hit.
ProtoNet	Search...

Entry information

Entry name

ISPH_CAMJ8

Accession

Primary (citable) accession number: A8FLU3
Secondary accession number(s): P94644, Q0PA04, Q9PP37

Entry history

Integrated into UniProtKB/Swiss-Prot:	January 15, 2008
Last sequence update:	November 13, 2007
Last modified:	November 3, 2009
This is version 14 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)