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

S-methyl-5'-thioadenosine phosphorylase

Gene

mtnP

Organism
Thermococcus kodakarensis (strain ATCC BAA-918 / JCM 12380 / KOD1) (Pyrococcus kodakaraensis (strain KOD1))
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Catalyzes the reversible phosphorylation of S-methyl-5'-thioadenosine (MTA) to adenine and 5-methylthioribose-1-phosphate. Involved in the breakdown of MTA, a major by-product of polyamine biosynthesis. Responsible for the first step in the methionine salvage pathway after MTA has been generated from S-adenosylmethionine. Has broad substrate specificity with 6-aminopurine nucleosides as preferred substrates.UniRule annotation

Catalytic activityi

S-methyl-5'-thioadenosine + phosphate = adenine + S-methyl-5-thio-alpha-D-ribose 1-phosphate.UniRule annotation

Pathwayi: L-methionine biosynthesis via salvage pathway

This protein is involved in step 1 of the subpathway that synthesizes S-methyl-5-thio-alpha-D-ribose 1-phosphate from S-methyl-5'-thioadenosine (phosphorylase route).UniRule annotation
Proteins known to be involved in this subpathway in this organism are:
  1. S-methyl-5'-thioadenosine phosphorylase (mtnP)
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 S-methyl-5-thio-alpha-D-ribose 1-phosphate from S-methyl-5'-thioadenosine (phosphorylase route), the pathway L-methionine biosynthesis via salvage pathway and in Amino-acid biosynthesis.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei10PhosphateUniRule annotation1
Sitei163Important for substrate specificityUniRule annotation1
Binding sitei180Substrate; via amide nitrogenUniRule annotation1
Binding sitei181PhosphateUniRule annotation1
Sitei215Important for substrate specificityUniRule annotation1

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Glycosyltransferase, Transferase

Keywords - Biological processi

Purine salvage

Enzyme and pathway databases

BioCyciMetaCyc:MONOMER-19657.
UniPathwayiUPA00904; UER00873.

Names & Taxonomyi

Protein namesi
Recommended name:
S-methyl-5'-thioadenosine phosphorylaseUniRule annotation (EC:2.4.2.28UniRule annotation)
Alternative name(s):
5'-methylthioadenosine phosphorylaseUniRule annotation
Short name:
MTA phosphorylaseUniRule annotation
Short name:
MTAPUniRule annotation
Gene namesi
Name:mtnPUniRule annotation
Ordered Locus Names:TK1895
OrganismiThermococcus kodakarensis (strain ATCC BAA-918 / JCM 12380 / KOD1) (Pyrococcus kodakaraensis (strain KOD1))
Taxonomic identifieri69014 [NCBI]
Taxonomic lineageiArchaeaEuryarchaeotaThermococciThermococcalesThermococcaceaeThermococcus
Proteomesi
  • UP000000536 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00004151081 – 257S-methyl-5'-thioadenosine phosphorylaseAdd BLAST257

Interactioni

Subunit structurei

Homohexamer. Dimer of a homotrimer.UniRule annotation

Protein-protein interaction databases

IntActiQ5JEQ6. 1 interactor.
MINTiMINT-8377197.
STRINGi69014.TK1895.

Structurei

3D structure databases

ProteinModelPortaliQ5JEQ6.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni50 – 51Phosphate bindingUniRule annotation2
Regioni83 – 84Phosphate bindingUniRule annotation2
Regioni204 – 206Substrate bindingUniRule annotation3

Sequence similaritiesi

Belongs to the PNP/MTAP phosphorylase family. MTAP subfamily.UniRule annotation

Phylogenomic databases

eggNOGiarCOG01327. Archaea.
COG0005. LUCA.
HOGENOMiHOG000228987.
InParanoidiQ5JEQ6.
KOiK00772.
OMAiPEERKCG.

Family and domain databases

Gene3Di3.40.50.1580. 1 hit.
HAMAPiMF_01963. MTAP. 1 hit.
InterProiIPR010044. MTAP.
IPR000845. Nucleoside_phosphorylase_d.
IPR001369. PNP/MTAP.
IPR018099. Purine_phosphorylase-2_CS.
[Graphical view]
PANTHERiPTHR11904. PTHR11904. 1 hit.
PfamiPF01048. PNP_UDP_1. 1 hit.
[Graphical view]
SUPFAMiSSF53167. SSF53167. 1 hit.
TIGRFAMsiTIGR01694. MTAP. 1 hit.
PROSITEiPS01240. PNP_MTAP_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q5JEQ6-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MPRIGIIGGS GVYGVFEPKE TVKVHTPYGR PSAPVEIGEI EGVEVAFIPR
60 70 80 90 100
HGKHHEFPPH EVPYRANIWA LKELGVERVI GITAVGSLRE EYKPGDIVIT
110 120 130 140 150
DQFIDFTKKR DYTFYNGPRV AHVSMADPFC PEMRKIFYET AKELGFPVHE
160 170 180 190 200
KGTYVCIEGP RFSTRAESFM FRQFAHIIGM TLVPEVNLAR ELGMCYVNIA
210 220 230 240 250
TVTDYDVWAD KPVDAQEVLK VMAENNYKVQ ELLKKGIPKI PEERHCGCAD

VLKTMFV
Length:257
Mass (Da):29,076
Last modified:February 15, 2005 - v1
Checksum:iF2655D33A7EADFF5
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AP006878 Genomic DNA. Translation: BAD86084.1.
RefSeqiWP_011250846.1. NC_006624.1.

Genome annotation databases

EnsemblBacteriaiBAD86084; BAD86084; TK1895.
GeneIDi3235538.
KEGGitko:TK1895.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AP006878 Genomic DNA. Translation: BAD86084.1.
RefSeqiWP_011250846.1. NC_006624.1.

3D structure databases

ProteinModelPortaliQ5JEQ6.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

IntActiQ5JEQ6. 1 interactor.
MINTiMINT-8377197.
STRINGi69014.TK1895.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiBAD86084; BAD86084; TK1895.
GeneIDi3235538.
KEGGitko:TK1895.

Phylogenomic databases

eggNOGiarCOG01327. Archaea.
COG0005. LUCA.
HOGENOMiHOG000228987.
InParanoidiQ5JEQ6.
KOiK00772.
OMAiPEERKCG.

Enzyme and pathway databases

UniPathwayiUPA00904; UER00873.
BioCyciMetaCyc:MONOMER-19657.

Family and domain databases

Gene3Di3.40.50.1580. 1 hit.
HAMAPiMF_01963. MTAP. 1 hit.
InterProiIPR010044. MTAP.
IPR000845. Nucleoside_phosphorylase_d.
IPR001369. PNP/MTAP.
IPR018099. Purine_phosphorylase-2_CS.
[Graphical view]
PANTHERiPTHR11904. PTHR11904. 1 hit.
PfamiPF01048. PNP_UDP_1. 1 hit.
[Graphical view]
SUPFAMiSSF53167. SSF53167. 1 hit.
TIGRFAMsiTIGR01694. MTAP. 1 hit.
PROSITEiPS01240. PNP_MTAP_2. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiMTAP_THEKO
AccessioniPrimary (citable) accession number: Q5JEQ6
Entry historyi
Integrated into UniProtKB/Swiss-Prot: January 25, 2012
Last sequence update: February 15, 2005
Last modified: November 2, 2016
This is version 71 of the entry and version 1 of the sequence. [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

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.