ID   ADD_CLOK1               Reviewed;         348 AA.
AC   B9DZX5;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   24-MAR-2009, sequence version 1.
DT   03-AUG-2022, entry version 70.
DE   RecName: Full=Adenosine deaminase {ECO:0000255|HAMAP-Rule:MF_00540};
DE            EC=3.5.4.4 {ECO:0000255|HAMAP-Rule:MF_00540};
DE   AltName: Full=Adenosine aminohydrolase {ECO:0000255|HAMAP-Rule:MF_00540};
GN   Name=add {ECO:0000255|HAMAP-Rule:MF_00540}; OrderedLocusNames=CKR_0749;
OS   Clostridium kluyveri (strain NBRC 12016).
OC   Bacteria; Firmicutes; Clostridia; Eubacteriales; Clostridiaceae;
OC   Clostridium.
OX   NCBI_TaxID=583346;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NBRC 12016;
RA   Inui M., Nonaka H., Shinoda Y., Ikenaga Y., Abe M., Naito K., Vertes A.A.,
RA   Yukawa H.;
RT   "Complete genome sequence of Clostridium kluyveri and comparative genomics
RT   of Clostridia species.";
RL   Submitted (SEP-2005) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Catalyzes the hydrolytic deamination of adenosine and 2-
CC       deoxyadenosine. {ECO:0000255|HAMAP-Rule:MF_00540}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=adenosine + H(+) + H2O = inosine + NH4(+);
CC         Xref=Rhea:RHEA:24408, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:16335, ChEBI:CHEBI:17596, ChEBI:CHEBI:28938; EC=3.5.4.4;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00540};
CC       PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:24409;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00540};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2'-deoxyadenosine + H(+) + H2O = 2'-deoxyinosine + NH4(+);
CC         Xref=Rhea:RHEA:28190, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:17256, ChEBI:CHEBI:28938, ChEBI:CHEBI:28997; EC=3.5.4.4;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00540};
CC       PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:28191;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00540};
CC   -!- COFACTOR:
CC       Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00540};
CC       Note=Binds 1 zinc ion per subunit. {ECO:0000255|HAMAP-Rule:MF_00540};
CC   -!- SIMILARITY: Belongs to the metallo-dependent hydrolases superfamily.
CC       Adenosine and AMP deaminases family. Adenosine deaminase subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_00540}.
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DR   EMBL; AP009049; BAH05800.1; -; Genomic_DNA.
DR   RefSeq; WP_011989401.1; NC_011837.1.
DR   AlphaFoldDB; B9DZX5; -.
DR   SMR; B9DZX5; -.
DR   EnsemblBacteria; BAH05800; BAH05800; CKR_0749.
DR   KEGG; ckr:CKR_0749; -.
DR   HOGENOM; CLU_039228_0_0_9; -.
DR   Proteomes; UP000007969; Chromosome.
DR   GO; GO:0046936; F:2'-deoxyadenosine deaminase activity; IEA:RHEA.
DR   GO; GO:0004000; F:adenosine deaminase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0009117; P:nucleotide metabolic process; IEA:UniProtKB-KW.
DR   GO; GO:0009168; P:purine ribonucleoside monophosphate biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd01320; ADA; 1.
DR   HAMAP; MF_00540; A_deaminase; 1.
DR   InterPro; IPR028893; A_deaminase.
DR   InterPro; IPR001365; A_deaminase_dom.
DR   InterPro; IPR006330; Ado/ade_deaminase.
DR   InterPro; IPR032466; Metal_Hydrolase.
DR   PANTHER; PTHR11409; PTHR11409; 1.
DR   Pfam; PF00962; A_deaminase; 1.
DR   SUPFAM; SSF51556; SSF51556; 1.
DR   TIGRFAMs; TIGR01430; aden_deam; 1.
PE   3: Inferred from homology;
KW   Hydrolase; Metal-binding; Nucleotide metabolism; Zinc.
FT   CHAIN           1..348
FT                   /note="Adenosine deaminase"
FT                   /id="PRO_1000146568"
FT   ACT_SITE        204
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00540"
FT   BINDING         16
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00540"
FT   BINDING         18
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00540"
FT   BINDING         18
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00540"
FT   BINDING         20
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00540"
FT   BINDING         174
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00540"
FT   BINDING         201
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00540"
FT   BINDING         282
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00540"
FT   SITE            225
FT                   /note="Important for catalytic activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00540"
SQ   SEQUENCE   348 AA;  39715 MW;  C99FF50FBD428745 CRC64;
     MNLNKILKLI PKTDLHCHLD GSLRPETILD IAYKENIPLP NKELANFQEE IKVIGKCTSL
     KEYLNKFNLP IQIMQKEEHI YRVTLELLED ALKQNIKYIE IRFAPFNHLK DGLTLDQVIN
     TVLTAMNYGR THLNIMSNLI LCILRQEPVE KGIELVNTAK KYVGKGVVAV DLAGNESDFP
     PEIHEEAFTL ARKYGLHRTV HAGETGLPEN IIKSINILGA ERIGHGTYAY KDKEIITCLK
     ENRIPLEVCI TSNVNTSAVT SYQEHPIKKY LDEDLIITVN TDNTTVSNTN LIEEFNYLIK
     YQSFRFDDIK KVIKNGIESS FASKEDINKL YEEYLSAINV IELTNPIL