ID MTAD_THESM Reviewed; 424 AA.
AC C6A048;
DT 22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT 01-SEP-2009, sequence version 1.
DT 27-MAR-2024, entry version 75.
DE RecName: Full=5-methylthioadenosine/S-adenosylhomocysteine deaminase {ECO:0000255|HAMAP-Rule:MF_01281};
DE Short=MTA/SAH deaminase {ECO:0000255|HAMAP-Rule:MF_01281};
DE EC=3.5.4.28 {ECO:0000255|HAMAP-Rule:MF_01281};
DE EC=3.5.4.31 {ECO:0000255|HAMAP-Rule:MF_01281};
GN Name=mtaD {ECO:0000255|HAMAP-Rule:MF_01281}; OrderedLocusNames=TSIB_1980;
OS Thermococcus sibiricus (strain DSM 12597 / MM 739).
OC Archaea; Euryarchaeota; Thermococci; Thermococcales; Thermococcaceae;
OC Thermococcus.
OX NCBI_TaxID=604354;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 12597 / MM 739;
RX PubMed=19447963; DOI=10.1128/aem.00718-09;
RA Mardanov A.V., Ravin N.V., Svetlitchnyi V.A., Beletsky A.V.,
RA Miroshnichenko M.L., Bonch-Osmolovskaya E.A., Skryabin K.G.;
RT "Metabolic versatility and indigenous origin of the archaeon Thermococcus
RT sibiricus, isolated from a siberian oil reservoir, as revealed by genome
RT analysis.";
RL Appl. Environ. Microbiol. 75:4580-4588(2009).
CC -!- FUNCTION: Catalyzes the deamination of 5-methylthioadenosine and S-
CC adenosyl-L-homocysteine into 5-methylthioinosine and S-inosyl-L-
CC homocysteine, respectively. Is also able to deaminate adenosine.
CC {ECO:0000255|HAMAP-Rule:MF_01281}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H(+) + H2O + S-adenosyl-L-homocysteine = NH4(+) + S-inosyl-L-
CC homocysteine; Xref=Rhea:RHEA:20716, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:28938, ChEBI:CHEBI:57856,
CC ChEBI:CHEBI:57985; EC=3.5.4.28; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_01281};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H(+) + H2O + S-methyl-5'-thioadenosine = NH4(+) + S-methyl-5'-
CC thioinosine; Xref=Rhea:RHEA:25025, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:17509, ChEBI:CHEBI:28938,
CC ChEBI:CHEBI:48595; EC=3.5.4.31; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_01281};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01281};
CC Note=Binds 1 zinc ion per subunit. {ECO:0000255|HAMAP-Rule:MF_01281};
CC -!- SIMILARITY: Belongs to the metallo-dependent hydrolases superfamily.
CC MTA/SAH deaminase family. {ECO:0000255|HAMAP-Rule:MF_01281}.
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DR EMBL; CP001463; ACS91029.1; -; Genomic_DNA.
DR RefSeq; WP_015850245.1; NC_012883.1.
DR AlphaFoldDB; C6A048; -.
DR SMR; C6A048; -.
DR STRING; 604354.TSIB_1980; -.
DR GeneID; 8096993; -.
DR KEGG; tsi:TSIB_1980; -.
DR eggNOG; arCOG00695; Archaea.
DR HOGENOM; CLU_012358_2_1_2; -.
DR OrthoDB; 372084at2157; -.
DR Proteomes; UP000009079; Chromosome.
DR GO; GO:0090614; F:5'-methylthioadenosine deaminase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0050270; F:S-adenosylhomocysteine deaminase activity; IEA:UniProtKB-UniRule.
DR CDD; cd01298; ATZ_TRZ_like; 1.
DR Gene3D; 3.20.20.140; Metal-dependent hydrolases; 1.
DR Gene3D; 2.30.40.10; Urease, subunit C, domain 1; 1.
DR HAMAP; MF_01281; MTA_SAH_deamin; 1.
DR InterPro; IPR006680; Amidohydro-rel.
DR InterPro; IPR023512; Deaminase_MtaD/DadD.
DR InterPro; IPR011059; Metal-dep_hydrolase_composite.
DR InterPro; IPR032466; Metal_Hydrolase.
DR PANTHER; PTHR43794:SF11; AMIDOHYDRO-REL DOMAIN-CONTAINING PROTEIN; 1.
DR PANTHER; PTHR43794; AMINOHYDROLASE SSNA-RELATED; 1.
DR Pfam; PF01979; Amidohydro_1; 1.
DR SUPFAM; SSF51338; Composite domain of metallo-dependent hydrolases; 1.
DR SUPFAM; SSF51556; Metallo-dependent hydrolases; 1.
PE 3: Inferred from homology;
KW Hydrolase; Metal-binding; Reference proteome; Zinc.
FT CHAIN 1..424
FT /note="5-methylthioadenosine/S-adenosylhomocysteine
FT deaminase"
FT /id="PRO_1000214207"
FT BINDING 60
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01281"
FT BINDING 62
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01281"
FT BINDING 89
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01281"
FT BINDING 181
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01281"
FT BINDING 208
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01281"
FT BINDING 211
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01281"
FT BINDING 296
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01281"
FT BINDING 296
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01281"
SQ SEQUENCE 424 AA; 47304 MW; F6BC875CEA348728 CRC64;
MSILIKNGYV IYGDSLKIIK ADIYIENNKI SKIGKDLTKS ADHVIDAKGR VISPGFINAH
THSPMVLLRG LADDISLMEW LQNYVWPVEK KLKRVHIYWG ALLGTLEMIK TGTTTFVDMY
FHMEEVAKAV EEIGLRAYLS YGMVDLGDEE KRSIEIRETL KLLKFIESLS SPRVEFLFGP
HAPYTCSPKL LTWVREKADE TGKMITIHLS ETKDEVKQIK EKYGKTPVEL LDELGFLKND
VIAAHGVWLT DKEIEILAKR DVTIVHNPAS NMKLGSGVMS LEKLLKAGVN VALGTDGAAS
NNNLDMIEEM KLAALLHKVH TLNPTLADAK TVFKMATQNG AKALRLNAGV IKEGALADVI
VIDFNKPHLR PITNIISHIV YSANGNDVET TIVDGKVVML DREVLTIDEE KILDKVQKIV
DKLR
//
