Identification |
HMDB Protein ID
| CDBP00389 |
Secondary Accession Numbers
| Not Available |
Name
| S-methyl-5'-thioadenosine phosphorylase |
Description
| Not Available |
Synonyms
|
- 5'-methylthioadenosine phosphorylase
- MTA phosphorylase
- MTAPase
- MTAP
|
Gene Name
| MTAP |
Protein Type
| Enzyme |
Biological Properties |
General Function
| Involved in transferase activity, transferring pentosyl groups |
Specific Function
| 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.
|
GO Classification
|
Biological Process |
purine ribonucleoside salvage |
L-methionine salvage from methylthioadenosine |
polyamine metabolic process |
nucleobase-containing compound metabolic process |
Cellular Component |
cytosol |
nucleus |
Function |
catalytic activity |
transferase activity |
transferase activity, transferring pentosyl groups |
transferase activity, transferring glycosyl groups |
Molecular Function |
phosphorylase activity |
S-methyl-5-thioadenosine phosphorylase activity |
Process |
metabolic process |
nitrogen compound metabolic process |
cellular nitrogen compound metabolic process |
nucleobase, nucleoside, nucleotide and nucleic acid metabolic process |
nucleobase, nucleoside and nucleotide metabolic process |
nucleoside metabolic process |
|
Cellular Location
|
- Cytoplasm
|
Pathways
|
Name | SMPDB/Pathwhiz | KEGG | L-methionine biosynthesis via salvage pathway | Not Available | Not Available | Cysteine and methionine metabolism | Not Available | | Methionine Metabolism | | | Cystathionine Beta-Synthase Deficiency | | Not Available | Hypermethioninemia | | Not Available |
|
Gene Properties |
Chromosome Location
| 9 |
Locus
| 9p21 |
SNPs
| MTAP |
Gene Sequence
|
>852 bp
ATGGCCTCTGGCACCACCACCACCGCCGTGAAGATTGGAATAATTGGTGGAACAGGCCTG
GATGATCCAGAAATTTTAGAAGGAAGAACTGAAAAATATGTGGATACTCCATTTGGCAAG
CCATCTGATGCCTTAATTTTGGGGAAGATAAAAAATGTTGATTGCATCCTCCTTGCAAGG
CATGGAAGGCAGCACACCATCATGCCTTCAAAGGTCAACTACCAGGCGAACATCTGGGCT
TTGAAGGAAGAGGGCTGTACACATGTCATAGTGACCACAGCTTGTGGCTCCTTGAGGGAG
GAGATTCAGCCCGGCGATATTGTCATTATTGATCAGTTCATTGACAGGACCACTATGAGA
CCTCAGTCCTTCTATGATGGAAGTCATTCTTGTGCCAGAGGAGTGTGCCATATTCCAATG
GCTGAGCCGTTTTGCCCCAAAACGAGAGAGGTTCTTATAGAGACTGCTAAGAAGCTAGGA
CTCCGGTGCCACTCAAAGGGGACAATGGTCACAATCGAGGGACCTCGTTTTAGCTCCCGG
GCAGAAAGCTTCATGTTCCGCACCTGGGGGGCGGATGTTATCAACATGACCACAGTTCCA
GAGGTGGTTCTTGCTAAGGAGGCTGGAATTTGTTACGCAAGTATCGCCATGGCGACAGAT
TATGACTGCTGGAAGGAGCACGAGGAAGCAGTTTCGGTGGACCGGGTCTTAAAGACCCTG
AAAGAAAACGCTAATAAAGCCAAAAGCTTACTGCTCACTACCATACCTCAGATAGGGTCC
ACAGAATGGTCAGAAACCCTCCATAACCTGAAGAATATGGCCCAGTTTTCTGTTTTATTA
CCAAGACATTAA
|
Protein Properties |
Number of Residues
| 283 |
Molecular Weight
| 31235.76 |
Theoretical pI
| 7.188 |
Pfam Domain Function
|
|
Signals
|
Not Available
|
Transmembrane Regions
|
Not Available
|
Protein Sequence
|
>S-methyl-5'-thioadenosine phosphorylase
MASGTTTTAVKIGIIGGTGLDDPEILEGRTEKYVDTPFGKPSDALILGKIKNVDCVLLAR
HGRQHTIMPSKVNYQANIWALKEEGCTHVIVTTACGSLREEIQPGDIVIIDQFIDRTTMR
PQSFYDGSHSCARGVCHIPMAEPFCPKTREVLIETAKKLGLRCHSKGTMVTIEGPRFSSR
AESFMFRTWGADVINMTTVPEVVLAKEAGICYASIAMATDYDCWKEHEEAVSVDRVLKTL
KENANKAKSLLLTTIPQIGSTEWSETLHNLKNMAQFSVLLPRH
|
External Links |
GenBank ID Protein
| 847724 |
UniProtKB/Swiss-Prot ID
| Q13126 |
UniProtKB/Swiss-Prot Entry Name
| MTAP_HUMAN |
PDB IDs
|
|
GenBank Gene ID
| U22233 |
GeneCard ID
| MTAP |
GenAtlas ID
| MTAP |
HGNC ID
| HGNC:7413 |
References |
General References
| Not Available |