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A8XGS6

- MTAP_CAEBR

UniProt

A8XGS6 - MTAP_CAEBR

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Protein
S-methyl-5'-thioadenosine phosphorylase
Gene
CBG12968
Organism
Caenorhabditis briggsae
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 sitei10 – 101Phosphate By similarity
Sitei170 – 1701Important for substrate specificity By similarity
Binding sitei188 – 1881Substrate; via amide nitrogen By similarity
Binding sitei189 – 1891Phosphate By similarity
Sitei224 – 2241Important 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

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
Short name:
MTAPase
Gene namesi
ORF Names:CBG12968
OrganismiCaenorhabditis briggsae
Taxonomic identifieri6238 [NCBI]
Taxonomic lineageiEukaryotaMetazoaEcdysozoaNematodaChromadoreaRhabditidaRhabditoideaRhabditidaePeloderinaeCaenorhabditis
ProteomesiUP000008549: Chromosome II, UP000008549: Unassembled WGS sequence

Organism-specific databases

WormBaseiCBG12968; CBP22764; WBGene00033820.

Subcellular locationi

Cytoplasm By similarity. Nucleus By similarity UniRule annotation

GO - Cellular componenti

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

Keywords - Cellular componenti

Cytoplasm, Nucleus

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 285285S-methyl-5'-thioadenosine phosphorylaseUniRule annotation
PRO_0000415122Add
BLAST

Interactioni

Subunit structurei

Homotrimer By similarity.UniRule annotation

Protein-protein interaction databases

STRINGi6238.CBG12968.

Structurei

3D structure databases

ProteinModelPortaliA8XGS6.

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni52 – 532Phosphate binding By similarity
Regioni85 – 862Phosphate binding By similarity
Regioni212 – 2143Substrate binding By similarity

Sequence similaritiesi

Phylogenomic databases

eggNOGiCOG0005.
HOGENOMiHOG000228987.
KOiK00772.
OMAiCEAQLCY.
OrthoDBiEOG771270.

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.

A8XGS6-1 [UniParc]FASTAAdd to Basket

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MVKVGIIGGS GLEDPNILLN PTAISIDTPY GQPSDHLIQG TINGVECVLL    50
ARHGRKHDIM PGNVNYRANL WALYSLGVDV IIASTACGSL KEEVAPGHLL 100
FPDSVFDRTN SRKATFFDGT FSGAPGVSHI QAHPTYNEKL RQVLISTAEK 150
CKLVHHRTGF GVCIEGPRFS TKAESMVFKS WGASLVNMTM MPECILAKEL 200
GIPYATTALV TDYDCWKDED QVTAASVMKV FAANVEKAKT LFIEAVAEIG 250
KIDWSAEILQ TKTAARQSIM ISPDVEVEFL KVPKT 285
Length:285
Mass (Da):31,011
Last modified:January 15, 2008 - v1
Checksum:i2156DCAD3564F43F
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
HE600938 Genomic DNA. Translation: CAP31850.1.
RefSeqiXP_002630529.1. XM_002630483.1.

Genome annotation databases

EnsemblMetazoaiCBG12968; CBG12968; CBG12968.
GeneIDi8572045.
KEGGicbr:CBG12968.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
HE600938 Genomic DNA. Translation: CAP31850.1 .
RefSeqi XP_002630529.1. XM_002630483.1.

3D structure databases

ProteinModelPortali A8XGS6.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 6238.CBG12968.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblMetazoai CBG12968 ; CBG12968 ; CBG12968 .
GeneIDi 8572045.
KEGGi cbr:CBG12968.

Organism-specific databases

CTDi 8572045.
WormBasei CBG12968 ; CBP22764 ; WBGene00033820 .

Phylogenomic databases

eggNOGi COG0005.
HOGENOMi HOG000228987.
KOi K00772.
OMAi CEAQLCY.
OrthoDBi EOG771270.

Enzyme and pathway databases

UniPathwayi UPA00904 ; UER00873 .

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: AF16.

Entry informationi

Entry nameiMTAP_CAEBR
AccessioniPrimary (citable) accession number: A8XGS6
Entry historyi
Integrated into UniProtKB/Swiss-Prot: January 25, 2012
Last sequence update: January 15, 2008
Last modified: June 11, 2014
This is version 44 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programCaenorhabditis annotation project

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