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Q8CXR2

- MTAP_LEPIN

UniProt

Q8CXR2 - MTAP_LEPIN

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Protein
S-methyl-5'-thioadenosine phosphorylase
Gene
mtnP, LA_4248
Organism
Leptospira interrogans serogroup Icterohaemorrhagiae serovar Lai (strain 56601)
Status
Reviewed - 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 By similarity.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 sitei13 – 131Phosphate By similarity
Sitei168 – 1681Important for substrate specificity By similarity
Binding sitei186 – 1861Substrate; via amide nitrogen By similarity
Binding sitei187 – 1871Phosphate By similarity
Sitei223 – 2231Important for substrate specificity By similarity

GO - Molecular functioni

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

GO - Biological processi

  1. L-methionine salvage 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

BioCyciLINT189518:GJBB-3366-MONOMER.
UniPathwayiUPA00904; UER00873.

Names & Taxonomyi

Protein namesi
Recommended name:
S-methyl-5'-thioadenosine phosphorylase (EC:2.4.2.28)
Alternative name(s):
5'-methylthioadenosine phosphorylase
Short name:
MTA phosphorylase
Short name:
MTAP
Gene namesi
Name:mtnP
Ordered Locus Names:LA_4248
OrganismiLeptospira interrogans serogroup Icterohaemorrhagiae serovar Lai (strain 56601)
Taxonomic identifieri189518 [NCBI]
Taxonomic lineageiBacteriaSpirochaetesSpirochaetalesLeptospiraceaeLeptospira
ProteomesiUP000001408: Chromosome I

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 287287S-methyl-5'-thioadenosine phosphorylaseUniRule annotation
PRO_0000184550Add
BLAST

Proteomic databases

PaxDbiQ8CXR2.

Interactioni

Subunit structurei

Homohexamer. Dimer of a homotrimer By similarity.UniRule annotation

Protein-protein interaction databases

STRINGi189518.LA4248.

Structurei

3D structure databases

ProteinModelPortaliQ8CXR2.

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni55 – 562Phosphate binding By similarity
Regioni210 – 2123Substrate binding By similarity

Sequence similaritiesi

Phylogenomic databases

eggNOGiCOG0005.
HOGENOMiHOG000228986.
KOiK00772.
OMAiCEAQLCY.
OrthoDBiEOG6KHFXC.

Family and domain databases

Gene3Di3.40.50.1580. 1 hit.
HAMAPiMF_01963. MTAP.
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.

Q8CXR2-1 [UniParc]FASTAAdd to Basket

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MSYNVRAAII GGTGLYSLEG MELIEEIFPD TPWGKPSDKI KIGKYKGKLI    50
AFLPRHGIGH FLSPPEVPNH ANICALKQLG VEEIVAFSSV GSLREEIKPL 100
DFVLPSQIID RTRFRNSTYF GNGVVAHAPF AEPFSPNLSK RIAQTAKKIG 150
LEIHLDKTLV CMEGPLFSTK AESHLYRSWG ADIINMTVLP EAKLAREAEI 200
AYQMICMSTD YDCWREGEES VTVEMVIANL TKNAETAKKL LSELIHVLGN 250
GDDLSLKNST RYSIITAPEK RNSETVKKLR VLFPEYF 287
Length:287
Mass (Da):32,031
Last modified:March 1, 2003 - v1
Checksum:i2830C5FB62F3AE88
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AE010300 Genomic DNA. Translation: AAN51446.1.
RefSeqiNP_714428.1. NC_004342.2.

Genome annotation databases

EnsemblBacteriaiAAN51446; AAN51446; LA_4248.
GeneIDi1153590.
KEGGilil:LA_4248.
PATRICi22389337. VBILepInt91350_4221.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AE010300 Genomic DNA. Translation: AAN51446.1 .
RefSeqi NP_714428.1. NC_004342.2.

3D structure databases

ProteinModelPortali Q8CXR2.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 189518.LA4248.

Proteomic databases

PaxDbi Q8CXR2.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai AAN51446 ; AAN51446 ; LA_4248 .
GeneIDi 1153590.
KEGGi lil:LA_4248.
PATRICi 22389337. VBILepInt91350_4221.

Phylogenomic databases

eggNOGi COG0005.
HOGENOMi HOG000228986.
KOi K00772.
OMAi CEAQLCY.
OrthoDBi EOG6KHFXC.

Enzyme and pathway databases

UniPathwayi UPA00904 ; UER00873 .
BioCyci LINT189518:GJBB-3366-MONOMER.

Family and domain databases

Gene3Di 3.40.50.1580. 1 hit.
HAMAPi MF_01963. MTAP.
InterProi IPR010044. MTAP.
IPR000845. Nucleoside_phosphorylase_d.
IPR001369. PNP/MTAP.
IPR018099. Purine_phosphorylase-2_CS.
[Graphical view ]
PANTHERi PTHR11904. PTHR11904. 1 hit.
Pfami PF01048. PNP_UDP_1. 1 hit.
[Graphical view ]
SUPFAMi SSF53167. SSF53167. 1 hit.
TIGRFAMsi TIGR01694. MTAP. 1 hit.
PROSITEi PS01240. PNP_MTAP_2. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: 56601.

Entry informationi

Entry nameiMTAP_LEPIN
AccessioniPrimary (citable) accession number: Q8CXR2
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 19, 2004
Last sequence update: March 1, 2003
Last modified: May 14, 2014
This is version 67 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

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