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Protein

S-methyl-5'-thioadenosine phosphorylase

Gene

mtnP

Organism
Koribacter versatilis (strain Ellin345)
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

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei11 – 111PhosphateUniRule annotation
Sitei166 – 1661Important for substrate specificityUniRule annotation
Binding sitei184 – 1841Substrate; via amide nitrogenUniRule annotation
Binding sitei185 – 1851PhosphateUniRule annotation
Sitei221 – 2211Important for substrate specificityUniRule annotation

GO - Molecular functioni

  1. phosphorylase activity Source: InterPro
  2. S-methyl-5-thioadenosine phosphorylase activity Source: UniProtKB-HAMAP

GO - Biological processi

  1. L-methionine biosynthetic process from methylthioadenosine Source: UniProtKB-HAMAP
  2. purine ribonucleoside salvage Source: UniProtKB-KW
Complete GO annotation...

Keywords - Molecular functioni

Glycosyltransferase, Transferase

Keywords - Biological processi

Purine salvage

Enzyme and pathway databases

BioCyciKVER204669:GHL8-2648-MONOMER.
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:Acid345_2626
OrganismiKoribacter versatilis (strain Ellin345)
Taxonomic identifieri204669 [NCBI]
Taxonomic lineageiBacteriaAcidobacteriaAcidobacterialesAcidobacteriaceaeCandidatus Koribacter
ProteomesiUP000002432: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 292292S-methyl-5'-thioadenosine phosphorylasePRO_0000415094Add
BLAST

Interactioni

Subunit structurei

Homohexamer. Dimer of a homotrimer.UniRule annotation

Protein-protein interaction databases

STRINGi204669.Acid345_2626.

Structurei

3D structure databases

ProteinModelPortaliQ1INC3.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni53 – 542Phosphate bindingUniRule annotation
Regioni86 – 872Phosphate bindingUniRule annotation
Regioni208 – 2103Substrate bindingUniRule annotation

Sequence similaritiesi

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

Phylogenomic databases

eggNOGiCOG0005.
HOGENOMiHOG000228986.
KOiK00772.
OMAiMTNHTEA.
OrthoDBiEOG6KHFXC.

Family and domain databases

Gene3Di3.40.50.1580. 1 hit.
HAMAPiMF_01963. MTAP.
InterProiIPR010044. MTAP.
IPR000845. Nucleoside_phosphorylase_d.
IPR001369. PNP/MTAP.
[Graphical view]
PANTHERiPTHR11904. PTHR11904. 1 hit.
PfamiPF01048. PNP_UDP_1. 1 hit.
[Graphical view]
SUPFAMiSSF53167. SSF53167. 1 hit.
TIGRFAMsiTIGR01694. MTAP. 1 hit.

Sequencei

Sequence statusi: Complete.

Q1INC3-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MQAEIGIIGG SGLYSMPGVS DVQEVRVTTP FGEPSDPYVL GTLAGRKVAF
60 70 80 90 100
LARHGRGHRL LPTELNFRAN IHGFKQLGVE RIISVSAVGS LKEEHRPLEF
110 120 130 140 150
VIPDQFYDRT KQRVSTFFGE GIVAHVGFGD PVCGEMAKVV KHATDKAGVV
160 170 180 190 200
AKAGGTYVCM EGPQFSTKAE SNLYRSWGFD VIGMTNLQEA KLAREAELCY
210 220 230 240 250
VTVAMVTDYD CWHPDHDAVT VDQIVAVLLK NAENACSVVR EAVAAMPKDR
260 270 280 290
TCKCGSALAT AIITNKDVVP AATKEKLKLI IGKYFGEQKA GA
Length:292
Mass (Da):31,561
Last modified:June 13, 2006 - v1
Checksum:i49FB572E43B2BA15
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000360 Genomic DNA. Translation: ABF41627.1.
RefSeqiYP_591701.1. NC_008009.1.

Genome annotation databases

EnsemblBacteriaiABF41627; ABF41627; Acid345_2626.
GeneIDi4072035.
KEGGiaba:Acid345_2626.
PATRICi31982322. VBICanKor57425_2797.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000360 Genomic DNA. Translation: ABF41627.1.
RefSeqiYP_591701.1. NC_008009.1.

3D structure databases

ProteinModelPortaliQ1INC3.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi204669.Acid345_2626.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABF41627; ABF41627; Acid345_2626.
GeneIDi4072035.
KEGGiaba:Acid345_2626.
PATRICi31982322. VBICanKor57425_2797.

Phylogenomic databases

eggNOGiCOG0005.
HOGENOMiHOG000228986.
KOiK00772.
OMAiMTNHTEA.
OrthoDBiEOG6KHFXC.

Enzyme and pathway databases

UniPathwayiUPA00904; UER00873.
BioCyciKVER204669:GHL8-2648-MONOMER.

Family and domain databases

Gene3Di3.40.50.1580. 1 hit.
HAMAPiMF_01963. MTAP.
InterProiIPR010044. MTAP.
IPR000845. Nucleoside_phosphorylase_d.
IPR001369. PNP/MTAP.
[Graphical view]
PANTHERiPTHR11904. PTHR11904. 1 hit.
PfamiPF01048. PNP_UDP_1. 1 hit.
[Graphical view]
SUPFAMiSSF53167. SSF53167. 1 hit.
TIGRFAMsiTIGR01694. MTAP. 1 hit.
ProtoNetiSearch...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: Ellin345.

Entry informationi

Entry nameiMTAP_KORVE
AccessioniPrimary (citable) accession number: Q1INC3
Entry historyi
Integrated into UniProtKB/Swiss-Prot: January 25, 2012
Last sequence update: June 13, 2006
Last modified: January 7, 2015
This is version 51 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

External Data

Dasty 3

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 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.