MTAD_THEPX
ID MTAD_THEPX Reviewed; 431 AA.
AC B0K2W0;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 18-MAR-2008, sequence version 1.
DT 03-AUG-2022, entry version 73.
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};
GN OrderedLocusNames=Teth514_1885;
OS Thermoanaerobacter sp. (strain X514).
OC Bacteria; Firmicutes; Clostridia; Thermoanaerobacterales;
OC Thermoanaerobacteraceae; Thermoanaerobacter;
OC unclassified Thermoanaerobacter.
OX NCBI_TaxID=399726;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=X514;
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T., Dalin E.,
RA Tice H., Pitluck S., Bruce D., Goodwin L., Saunders E., Brettin T.,
RA Detter J.C., Han C., Schmutz J., Larimer F., Land M., Hauser L.,
RA Kyrpides N., Kim E., Hemme C., Fields M.W., He Z., Zhou J., Richardson P.;
RT "Complete sequence of Thermoanaerobacter sp. X514.";
RL Submitted (JAN-2008) to the EMBL/GenBank/DDBJ databases.
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; CP000923; ABY93165.1; -; Genomic_DNA.
DR RefSeq; WP_009052490.1; NC_010320.1.
DR AlphaFoldDB; B0K2W0; -.
DR SMR; B0K2W0; -.
DR EnsemblBacteria; ABY93165; ABY93165; Teth514_1885.
DR KEGG; tex:Teth514_1885; -.
DR HOGENOM; CLU_012358_2_1_9; -.
DR OMA; ALIGKVC; -.
DR Proteomes; UP000002155; 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 Gene3D; 2.30.40.10; -; 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 Pfam; PF01979; Amidohydro_1; 1.
DR SUPFAM; SSF51338; SSF51338; 1.
DR SUPFAM; SSF51556; SSF51556; 1.
PE 3: Inferred from homology;
KW Hydrolase; Metal-binding; Zinc.
FT CHAIN 1..431
FT /note="5-methylthioadenosine/S-adenosylhomocysteine
FT deaminase"
FT /id="PRO_1000140355"
FT BINDING 63
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01281"
FT BINDING 65
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01281"
FT BINDING 92
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01281"
FT BINDING 144
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01281"
FT BINDING 184
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01281"
FT BINDING 211
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01281"
FT BINDING 214
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01281"
FT BINDING 299
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01281"
FT BINDING 299
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01281"
SQ SEQUENCE 431 AA; 48134 MW; BB8118E1098E3D42 CRC64;
MNLLIKNVAL LSMKEEQPLM ENTNIYIEGD TITYIGEINP DIKVDRVIDG TKKIATPGLI
NAHTHLGMSL LRNYADDVPL FDWLSKHIWP VESKLSAEDV YWGSLLSMIE MIYSGTTTFC
DMYFFMDEVA KATEEVGIRG VLTRGIIEES DAEINKEKLR DTRKLYNTWH NKADGRIKVM
VGPHAPYTCS SSYLKEVVEL AKELNTGIHI HVSETKKEVE ESFQKHGKSP VKHLKDIGVF
DVPTVAAHCV HVSDEDTEIL KEMKVSPVYN PTSNAKLASG FAPVDQMLKK GINVALGTDG
PASNNNLNMF EEIHFAATIN KALNYDALAV PALEALKMAT INGAKALLWD KEIGSIEVGK
KADIVIIDID KPHFYPHHNL ISALAYTAQA SDVDTVIING KIIMENREIK TVDVEKVMYN
VEKRAKNLIQ R
