B6JP92 (PDXA_HELP2) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
4-hydroxythreonine-4-phosphate dehydrogenase
EC=1.1.1.262

Alternative name(s):
4-(phosphohydroxy)-L-threonine dehydrogenase

Gene names

Name:	pdxA
Ordered Locus Names:	HPP12_1574

Organism

Helicobacter pylori (strain P12) [Complete proteome] [HAMAP]

Taxonomic identifier

570508 [NCBI]

Taxonomic lineage

cellular organisms › Bacteria › Proteobacteria › delta/epsilon subdivisions › Epsilonproteobacteria › Campylobacterales › Helicobacteraceae › Helicobacter › Helicobacter pylori

Protein attributes

Sequence length	307 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Function	Catalyzes the NAD(P)-dependent oxidation of 4-(phosphohydroxy)-L-threonine (HTP) into 2-amino-3-oxo-4-(phosphohydroxy)butyric acid which spontaneously decarboxylates to form 3-amino-2-oxopropyl phosphate (AHAP) By similarity. HAMAP-Rule MF_00536
Catalytic activity	4-phosphonooxy-L-threonine + NAD+ = 3-amino-2-oxopropyl phosphate + CO2 + NADH. HAMAP-Rule MF_00536
Cofactor	Binds 1 divalent metal cation per subunit. Can use ions such as zinc, magnesium or cobalt By similarity.
Pathway	Cofactor biosynthesis; pyridoxine 5'-phosphate biosynthesis; pyridoxine 5'-phosphate from D-erythrose 4-phosphate: step 4/5. HAMAP-Rule MF_00536
Subunit structure	Homodimer By similarity. HAMAP-Rule MF_00536
Subcellular location	Cytoplasm By similarity HAMAP-Rule MF_00536.
Miscellaneous	The active site is located at the dimer interface By similarity. HAMAP-Rule MF_00536
Sequence similarities	Belongs to the PdxA family.

Ontologies

Keywords
Biological process	Pyridoxine biosynthesis
Cellular component	Cytoplasm
Ligand	Cobalt Magnesium Metal-binding NAD NADP Zinc
Molecular function	Oxidoreductase
Technical term	Complete proteome
Gene Ontology (GO)
Biological_process	pyridoxal phosphate biosynthetic process Inferred from electronic annotation. Source: HAMAP pyridoxine biosynthetic process Inferred from electronic annotation. Source: HAMAP
Cellular_component	cytoplasm Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular_function	4-hydroxythreonine-4-phosphate dehydrogenase activity Inferred from electronic annotation. Source: HAMAP NAD binding Inferred from electronic annotation. Source: InterPro cobalt ion binding Inferred from electronic annotation. Source: HAMAP magnesium ion binding Inferred from electronic annotation. Source: HAMAP zinc 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 – 307	307	4-hydroxythreonine-4-phosphate dehydrogenase HAMAP-Rule MF_00536		PRO_1000128251
Sites
	Metal binding	156	1	Divalent metal cation; shared with dimeric partner By similarity
	Metal binding	195	1	Divalent metal cation; shared with dimeric partner By similarity
	Metal binding	251	1	Divalent metal cation; shared with dimeric partner By similarity
	Binding site	126	1	Substrate By similarity
	Binding site	127	1	Substrate By similarity
	Binding site	259	1	Substrate By similarity
	Binding site	268	1	Substrate By similarity
	Binding site	277	1	Substrate By similarity

Sequences

	Sequence		Length	Mass (Da)
	B6JP92 [UniParc]. Last modified December 16, 2008. Version 1. Checksum: DFC83058340B12B0	FASTA	307	33,792
	10 20 30 40 50 60 MAKKKIAISC GDIQGVGLEL ILKSHKEVNA FCEPLYLIDG ELLERANQLL HNAYETKTLN 70 80 90 100 110 120 ALAIHSPLPL LNSSTIGKIS AQSGAYSFES FKKACELADS EEVDGICTLP INKLAWQQAQ 130 140 150 160 170 180 IPFVGHTDFL KQRYKEHQII MMLGCSKLFV GLFSDHVPLS AVSQLIQVEA LVKFLLAFQK 190 200 210 220 230 240 STQAKIVQVC GFNPHAGEEG LFGKEDEKIL KAIQKSNQTL GFECFLGPLP ADSAFAPNKR 250 260 270 280 290 300 KITPFYVSMS HDVGLAPLKA LYFDESINVS LNAPILRVST DHGTAFDIAY QNKANNKSYL NAIKYLA

References

[1]	"The complete genome sequence of Helicobacter pylori strain P12." Fischer W., Windhager L., Karnholz A., Zeiller M., Zimmer R., Haas R. Submitted (OCT-2008) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: P12.

Cross-references

Sequence databases
EMBL GenBank DDBJ	CP001217 Genomic DNA. Translation: ACJ08720.1.
RefSeq	YP_002302200.1. NC_011498.1.
3D structure databases
ProteinModelPortal	B6JP92.
ModBase	Search...
Protein-protein interaction databases
STRING	570508.HPP12_1574.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
EnsemblBacteria	ACJ08720; ACJ08720; HPP12_1574.
GeneID	7011331.
KEGG	hpp:HPP12_1574.
PATRIC	20611301. VBIHelPyl2824_1662.
Organism-specific databases
CMR	Search...
Phylogenomic databases
eggNOG	COG1995.
HOGENOM	HOG000221591.
KO	K00097.
OMA	QLIQVEA.
ProtClustDB	PRK03946.
Enzyme and pathway databases
BioCyc	HPYL570508:GJ8D-1618-MONOMER.
UniPathway	UPA00244; UER00312.
Family and domain databases
Gene3D	3.40.718.10. 1 hit.
HAMAP	MF_00536. PdxA.
InterPro	IPR024084. IsoPropMal-DH-like_dom. IPR005255. PdxA. [Graphical view]
Pfam	PF04166. PdxA. 1 hit. [Graphical view]
TIGRFAMs	TIGR00557. pdxA. 1 hit.
ProtoNet	Search...

Entry information

Entry name

PDXA_HELP2

Accession

Primary (citable) accession number: B6JP92

Entry history

Integrated into UniProtKB/Swiss-Prot:	April 14, 2009
Last sequence update:	December 16, 2008
Last modified:	May 29, 2013
This is version 35 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program