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Q92X16

- PDXA2_RHIME

UniProt

Q92X16 - PDXA2_RHIME

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Protein
4-hydroxythreonine-4-phosphate dehydrogenase 2
Gene
pdxA2, RB0146, SMb20146
Organism
Rhizobium meliloti (strain 1021) (Ensifer meliloti) (Sinorhizobium meliloti)
Status
Reviewed - Annotation score: 3 out of 5 - Protein inferred from homologyi

Functioni

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.UniRule annotation

Catalytic activityi

4-phosphonooxy-L-threonine + NAD+ = 3-amino-2-oxopropyl phosphate + CO2 + NADH.UniRule annotation

Cofactori

Binds 1 divalent metal cation per subunit. Can use ions such as zinc, magnesium or cobalt By similarity.

Pathwayi

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei123 – 1231Substrate By similarity
Binding sitei124 – 1241Substrate By similarity
Metal bindingi153 – 1531Divalent metal cation; shared with dimeric partner By similarity
Metal bindingi197 – 1971Divalent metal cation; shared with dimeric partner By similarity
Metal bindingi252 – 2521Divalent metal cation; shared with dimeric partner By similarity
Binding sitei260 – 2601Substrate By similarity
Binding sitei269 – 2691Substrate By similarity
Binding sitei278 – 2781Substrate By similarity

GO - Molecular functioni

  1. 4-hydroxythreonine-4-phosphate dehydrogenase activity Source: UniProtKB-HAMAP
  2. NAD binding Source: InterPro
  3. cobalt ion binding Source: UniProtKB-HAMAP
  4. magnesium ion binding Source: UniProtKB-HAMAP
  5. zinc ion binding Source: UniProtKB-HAMAP

GO - Biological processi

  1. pyridoxal phosphate biosynthetic process Source: UniProtKB-HAMAP
  2. pyridoxine biosynthetic process Source: UniProtKB-HAMAP
Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Biological processi

Pyridoxine biosynthesis

Keywords - Ligandi

Cobalt, Magnesium, Metal-binding, NAD, NADP, Zinc

Enzyme and pathway databases

BioCyciSMEL266834:GJF6-3579-MONOMER.
UniPathwayiUPA00244; UER00312.

Names & Taxonomyi

Protein namesi
Recommended name:
4-hydroxythreonine-4-phosphate dehydrogenase 2 (EC:1.1.1.262)
Alternative name(s):
4-(phosphohydroxy)-L-threonine dehydrogenase 2
Gene namesi
Name:pdxA2
Ordered Locus Names:RB0146
ORF Names:SMb20146
Encoded oniPlasmid pSymB (megaplasmid 2)0 Publication
OrganismiRhizobium meliloti (strain 1021) (Ensifer meliloti) (Sinorhizobium meliloti)
Taxonomic identifieri266834 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaAlphaproteobacteriaRhizobialesRhizobiaceaeSinorhizobium/Ensifer groupSinorhizobium
ProteomesiUP000001976: Plasmid pSymB

Subcellular locationi

Cytoplasm By similarity UniRule annotation

GO - Cellular componenti

  1. cytoplasm Source: UniProtKB-SubCell
Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 3213214-hydroxythreonine-4-phosphate dehydrogenase 2UniRule annotation
PRO_0000188822Add
BLAST

Interactioni

Subunit structurei

Homodimer By similarity.UniRule annotation

Protein-protein interaction databases

STRINGi266834.SM_b20146.

Structurei

3D structure databases

ProteinModelPortaliQ92X16.

Family & Domainsi

Sequence similaritiesi

Belongs to the PdxA family.

Phylogenomic databases

eggNOGiCOG1995.
HOGENOMiHOG000221593.
KOiK00097.
OMAiYERPRIA.
OrthoDBiEOG6GN6ZC.

Family and domain databases

Gene3Di3.40.718.10. 1 hit.
HAMAPiMF_00536. PdxA.
InterProiIPR024084. IsoPropMal-DH-like_dom.
IPR005255. PdxA.
[Graphical view]
PfamiPF04166. PdxA. 1 hit.
[Graphical view]
TIGRFAMsiTIGR00557. pdxA. 1 hit.

Sequencei

Sequence statusi: Complete.

Q92X16-1 [UniParc]FASTAAdd to Basket

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MSKIIGITMG DPCGVGPEIT VRSLAEMSAA DREATRIYGN LATLEAAREA    50
LGLSVDLQPY VVDLTVEGAP LPWGSLSAVA GDAAFRFIER AVRDAEAGNI 100
GCIVTAPINK EALNMAGHHY DGHTGMLRSL TGSSAAYMLL ASERLKVIHV 150
STHVSLKEAI GRATTERVLA TIRAGNAHLK RIGYEHPRIA VAGINPHCGE 200
NGLFGTEDDD QIGPAVAAAR EEGIDVQGPI SADTVFHRAY SGGFDLVVAQ 250
YHDQGHIPIK LVAFDTAVNV SVDLPIDRTS VDHGTAFDIA GKGIANHGNL 300
NSAIAYARKL VAGQASRKAA S 321
Length:321
Mass (Da):33,689
Last modified:December 1, 2001 - v1
Checksum:iF6C54F187F325110
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AL591985 Genomic DNA. Translation: CAC48546.1.
PIRiB95860.
RefSeqiNP_436686.1. NC_003078.1.

Genome annotation databases

EnsemblBacteriaiCAC48546; CAC48546; SM_b20146.
GeneIDi1236477.
KEGGisme:SM_b20146.
PATRICi23636679. VBISinMel96828_5061.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AL591985 Genomic DNA. Translation: CAC48546.1 .
PIRi B95860.
RefSeqi NP_436686.1. NC_003078.1.

3D structure databases

ProteinModelPortali Q92X16.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 266834.SM_b20146.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai CAC48546 ; CAC48546 ; SM_b20146 .
GeneIDi 1236477.
KEGGi sme:SM_b20146.
PATRICi 23636679. VBISinMel96828_5061.

Phylogenomic databases

eggNOGi COG1995.
HOGENOMi HOG000221593.
KOi K00097.
OMAi YERPRIA.
OrthoDBi EOG6GN6ZC.

Enzyme and pathway databases

UniPathwayi UPA00244 ; UER00312 .
BioCyci SMEL266834:GJF6-3579-MONOMER.

Family and domain databases

Gene3Di 3.40.718.10. 1 hit.
HAMAPi MF_00536. PdxA.
InterProi IPR024084. IsoPropMal-DH-like_dom.
IPR005255. PdxA.
[Graphical view ]
Pfami PF04166. PdxA. 1 hit.
[Graphical view ]
TIGRFAMsi TIGR00557. pdxA. 1 hit.
ProtoNeti Search...

Publicationsi

  1. "The complete sequence of the 1,683-kb pSymB megaplasmid from the N2-fixing endosymbiont Sinorhizobium meliloti."
    Finan T.M., Weidner S., Wong K., Buhrmester J., Chain P., Vorhoelter F.J., Hernandez-Lucas I., Becker A., Cowie A., Gouzy J., Golding B., Puehler A.
    Proc. Natl. Acad. Sci. U.S.A. 98:9889-9894(2001) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: 1021.
  2. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: 1021.

Entry informationi

Entry nameiPDXA2_RHIME
AccessioniPrimary (citable) accession number: Q92X16
Entry historyi
Integrated into UniProtKB/Swiss-Prot: January 31, 2002
Last sequence update: December 1, 2001
Last modified: May 14, 2014
This is version 83 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Miscellaneous

The active site is located at the dimer interface By similarity.

Keywords - Technical termi

Complete proteome, Plasmid

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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