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MTAD_DICT6
ID   MTAD_DICT6              Reviewed;         426 AA.
AC   B5YDN9;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   25-NOV-2008, sequence version 1.
DT   03-AUG-2022, entry version 71.
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=DICTH_0781;
OS   Dictyoglomus thermophilum (strain ATCC 35947 / DSM 3960 / H-6-12).
OC   Bacteria; Dictyoglomi; Dictyoglomales; Dictyoglomaceae; Dictyoglomus.
OX   NCBI_TaxID=309799;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 35947 / DSM 3960 / H-6-12;
RX   PubMed=24558247; DOI=10.1128/genomea.00109-14;
RA   Coil D.A., Badger J.H., Forberger H.C., Riggs F., Madupu R., Fedorova N.,
RA   Ward N., Robb F.T., Eisen J.A.;
RT   "Complete Genome Sequence of the Extreme Thermophile Dictyoglomus
RT   thermophilum H-6-12.";
RL   Genome Announc. 2:0-0(2014).
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; CP001146; ACI19265.1; -; Genomic_DNA.
DR   RefSeq; WP_012547897.1; NC_011297.1.
DR   AlphaFoldDB; B5YDN9; -.
DR   SMR; B5YDN9; -.
DR   STRING; 309799.DICTH_0781; -.
DR   EnsemblBacteria; ACI19265; ACI19265; DICTH_0781.
DR   KEGG; dth:DICTH_0781; -.
DR   eggNOG; COG0402; Bacteria.
DR   HOGENOM; CLU_012358_2_1_0; -.
DR   OMA; ALIGKVC; -.
DR   OrthoDB; 1592010at2; -.
DR   Proteomes; UP000001733; 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..426
FT                   /note="5-methylthioadenosine/S-adenosylhomocysteine
FT                   deaminase"
FT                   /id="PRO_1000140350"
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         179
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01281"
FT   BINDING         206
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01281"
FT   BINDING         209
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01281"
FT   BINDING         294
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01281"
FT   BINDING         294
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01281"
SQ   SEQUENCE   426 AA;  47592 MW;  F6C83F9753EEB01A CRC64;
     MRILIEDVNI LIDDKIVENK NILIENDIIK QISDSKSFER IDYIIDGKNK IALPGLVNTH
     THLAMTLFRG FADDLPLEEW LEEKIWPQEA KLTADDVYWG SLLGICEMIR GGTIAFSDMY
     FFMDEMAKAV AESGIKASLS VGMIGIAGDE NETLNRGVSF AKNWHNAEDG RIRVMLGPHA
     PYTCPPSFLE KVIDKAIEMS LGIHTHLSET YLEVENIKNM YGLTPIRLMD RVGLFNVPVL
     AAHCVFVDDE EIEILSEKGV GVAHNPQSNL KLASGVAPVK KMLEKGVKVG LGTDGPASNN
     NLDMWEEIRL VATLHKGVER DPICVPARDA LIMATKNGME ILGFENSGII KEGYKADLIL
     VDVNKPHFYP RHNLVSHLVY SASSSDVDTV IVDGRILMEK RELKTLDEEK IMYEAEKRAF
     ELIKKS
 
 
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