Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Protein

Acireductone dioxygenase

Gene

mtnD

Organism
Xanthomonas oryzae pv. oryzae (strain KACC10331 / KXO85)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Protein inferred from homologyi

Functioni

Catalyzes 2 different reactions between oxygene and the acireductone 1,2-dihydroxy-3-keto-5-methylthiopentene (DHK-MTPene) depending upon the metal bound in the active site. Fe-containing acireductone dioxygenase (Fe-ARD) produces formate and 2-keto-4-methylthiobutyrate (KMTB), the alpha-ketoacid precursor of methionine in the methionine recycle pathway. Ni-containing acireductone dioxygenase (Ni-ARD) produces methylthiopropionate, carbon monoxide and formate, and does not lie on the methionine recycle pathway.UniRule annotation

Catalytic activityi

1,2-dihydroxy-5-(methylthio)pent-1-en-3-one + O2 = 3-(methylthio)propanoate + formate + CO.UniRule annotation
1,2-dihydroxy-5-(methylthio)pent-1-en-3-one + O2 = 4-(methylthio)-2-oxobutanoate + formate.UniRule annotation

Cofactori

Protein has several cofactor binding sites:
  • Fe cationUniRule annotationNote: Binds 1 Fe cation per monomer.UniRule annotation
  • Ni2+UniRule annotationNote: Binds 1 nickel ion per monomer.UniRule annotation

Pathwayi: L-methionine biosynthesis via salvage pathway

This protein is involved in step 5 of the subpathway that synthesizes L-methionine from S-methyl-5-thio-alpha-D-ribose 1-phosphate.UniRule annotation
Proteins known to be involved in the 6 steps of the subpathway in this organism are:
  1. Methylthioribose-1-phosphate isomerase (mtnA)
  2. Methylthioribulose-1-phosphate dehydratase (mtnB)
  3. Enolase-phosphatase E1 (mtnC)
  4. Enolase-phosphatase E1 (mtnC)
  5. Acireductone dioxygenase (mtnD)
  6. no protein annotated in this organism
This subpathway is part of the pathway L-methionine biosynthesis via salvage pathway, which is itself part of Amino-acid biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes L-methionine from S-methyl-5-thio-alpha-D-ribose 1-phosphate, the pathway L-methionine biosynthesis via salvage pathway and in Amino-acid biosynthesis.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sitei96May play a role in metal incorporation in vivoUniRule annotation1
Metal bindingi97Iron; alternateUniRule annotation1
Metal bindingi97Nickel; alternateUniRule annotation1
Metal bindingi99Iron; alternateUniRule annotation1
Metal bindingi99Nickel; alternateUniRule annotation1
Sitei102May play a role in transmitting local conformational changesUniRule annotation1
Metal bindingi103Iron; alternateUniRule annotation1
Metal bindingi103Nickel; alternateUniRule annotation1
Sitei105Important to generate the dianionUniRule annotation1
Metal bindingi141Iron; alternateUniRule annotation1
Metal bindingi141Nickel; alternateUniRule annotation1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionDioxygenase, Oxidoreductase
Biological processAmino-acid biosynthesis, Methionine biosynthesis
LigandIron, Metal-binding, Nickel

Enzyme and pathway databases

UniPathwayiUPA00904; UER00878.

Names & Taxonomyi

Protein namesi
Recommended name:
Acireductone dioxygenaseUniRule annotation
Alternative name(s):
1,2-dihydroxy-3-keto-5-methylthiopentene dioxygenaseUniRule annotation
Short name:
DHK-MTPene dioxygenaseUniRule annotation
Acireductone dioxygenase (Fe(2+)-requiring)UniRule annotation (EC:1.13.11.54UniRule annotation)
Short name:
ARD'UniRule annotation
Short name:
Fe-ARDUniRule annotation
Acireductone dioxygenase (Ni(2+)-requiring)UniRule annotation (EC:1.13.11.53UniRule annotation)
Short name:
ARDUniRule annotation
Short name:
Ni-ARDUniRule annotation
Gene namesi
Name:mtnDUniRule annotation
Ordered Locus Names:XOO2138
OrganismiXanthomonas oryzae pv. oryzae (strain KACC10331 / KXO85)
Taxonomic identifieri291331 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaXanthomonadalesXanthomonadaceaeXanthomonas
Proteomesi
  • UP000006735 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00003592511 – 188Acireductone dioxygenaseAdd BLAST188

Interactioni

Subunit structurei

Monomer.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliQ5H0X9.
SMRiQ5H0X9.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the acireductone dioxygenase (ARD) family.UniRule annotation

Phylogenomic databases

HOGENOMiHOG000201072.
KOiK08967.

Family and domain databases

Gene3Di2.60.120.10. 1 hit.
HAMAPiMF_01682. Salvage_MtnD. 1 hit.
InterProiView protein in InterPro
IPR004313. ARD.
IPR023956. ARD_bac.
IPR014710. RmlC-like_jellyroll.
IPR011051. RmlC_Cupin.
PANTHERiPTHR23418. PTHR23418. 1 hit.
PfamiView protein in Pfam
PF03079. ARD. 1 hit.
SUPFAMiSSF51182. SSF51182. 1 hit.

Sequencei

Sequence statusi: Complete.

Q5H0X9-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSRLRIFADT NPATPEFDSR DGDAIASELK KIGVTFERWH ASAPVEPGAT
60 70 80 90 100
PEQVMDAYRA DIDRISAERG FKTVDVVSIA PDNPKREEMR AKFLDEHFHK
110 120 130 140 150
EDEVRFFVAG SGLFTLHVDA KVYEIECVKD DLIAVPDSTL HWFDMGPEPH
160 170 180
FVAIRFFTEP DGWVGHFTGT EIAKQFPRYA PEKPHKAS
Length:188
Mass (Da):21,306
Last modified:January 20, 2009 - v2
Checksum:iC029ED9318CA61D3
GO

Sequence cautioni

The sequence AAW75392 differs from that shown. Reason: Erroneous initiation.Curated

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE013598 Genomic DNA. Translation: AAW75392.1. Different initiation.

Genome annotation databases

EnsemblBacteriaiAAW75392; AAW75392; XOO2138.
KEGGixoo:XOO2138.

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.

Entry informationi

Entry nameiMTND_XANOR
AccessioniPrimary (citable) accession number: Q5H0X9
Entry historyiIntegrated into UniProtKB/Swiss-Prot: January 20, 2009
Last sequence update: January 20, 2009
Last modified: July 5, 2017
This is version 84 of the entry and version 2 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

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