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SAHH_MYCTO
ID   SAHH_MYCTO              Reviewed;         495 AA.
AC   P9WGV2; L0TBZ4; O08364; P60176; P81858;
DT   16-APR-2014, integrated into UniProtKB/Swiss-Prot.
DT   16-APR-2014, sequence version 1.
DT   03-AUG-2022, entry version 42.
DE   RecName: Full=Adenosylhomocysteinase {ECO:0000255|HAMAP-Rule:MF_00563};
DE            EC=3.3.1.1 {ECO:0000255|HAMAP-Rule:MF_00563};
DE   AltName: Full=S-adenosyl-L-homocysteine hydrolase {ECO:0000255|HAMAP-Rule:MF_00563};
DE            Short=AdoHcyase {ECO:0000255|HAMAP-Rule:MF_00563};
GN   Name=ahcY {ECO:0000255|HAMAP-Rule:MF_00563}; Synonyms=sahH;
GN   OrderedLocusNames=MT3346;
OS   Mycobacterium tuberculosis (strain CDC 1551 / Oshkosh).
OC   Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC   Mycobacterium; Mycobacterium tuberculosis complex.
OX   NCBI_TaxID=83331;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CDC 1551 / Oshkosh;
RX   PubMed=12218036; DOI=10.1128/jb.184.19.5479-5490.2002;
RA   Fleischmann R.D., Alland D., Eisen J.A., Carpenter L., White O.,
RA   Peterson J.D., DeBoy R.T., Dodson R.J., Gwinn M.L., Haft D.H., Hickey E.K.,
RA   Kolonay J.F., Nelson W.C., Umayam L.A., Ermolaeva M.D., Salzberg S.L.,
RA   Delcher A., Utterback T.R., Weidman J.F., Khouri H.M., Gill J., Mikula A.,
RA   Bishai W., Jacobs W.R. Jr., Venter J.C., Fraser C.M.;
RT   "Whole-genome comparison of Mycobacterium tuberculosis clinical and
RT   laboratory strains.";
RL   J. Bacteriol. 184:5479-5490(2002).
CC   -!- FUNCTION: May play a key role in the regulation of the intracellular
CC       concentration of adenosylhomocysteine. {ECO:0000255|HAMAP-
CC       Rule:MF_00563}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + S-adenosyl-L-homocysteine = adenosine + L-homocysteine;
CC         Xref=Rhea:RHEA:21708, ChEBI:CHEBI:15377, ChEBI:CHEBI:16335,
CC         ChEBI:CHEBI:57856, ChEBI:CHEBI:58199; EC=3.3.1.1;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00563};
CC   -!- COFACTOR:
CC       Name=NAD(+); Xref=ChEBI:CHEBI:57540;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00563};
CC       Note=Binds 1 NAD(+) per subunit. {ECO:0000255|HAMAP-Rule:MF_00563};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-homocysteine biosynthesis; L-
CC       homocysteine from S-adenosyl-L-homocysteine: step 1/1.
CC       {ECO:0000255|HAMAP-Rule:MF_00563}.
CC   -!- SUBUNIT: Homotetramer. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00563}.
CC   -!- SIMILARITY: Belongs to the adenosylhomocysteinase family.
CC       {ECO:0000255|HAMAP-Rule:MF_00563}.
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DR   EMBL; AE000516; AAK47688.1; -; Genomic_DNA.
DR   PIR; B70593; B70593.
DR   RefSeq; WP_003417039.1; NZ_KK341227.1.
DR   AlphaFoldDB; P9WGV2; -.
DR   SMR; P9WGV2; -.
DR   EnsemblBacteria; AAK47688; AAK47688; MT3346.
DR   GeneID; 45427242; -.
DR   KEGG; mtc:MT3346; -.
DR   PATRIC; fig|83331.31.peg.3602; -.
DR   HOGENOM; CLU_025194_2_1_11; -.
DR   UniPathway; UPA00314; UER00076.
DR   Proteomes; UP000001020; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0004013; F:adenosylhomocysteinase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006730; P:one-carbon metabolic process; IEA:UniProtKB-UniRule.
DR   CDD; cd00401; SAHH; 1.
DR   Gene3D; 3.40.50.1480; -; 1.
DR   HAMAP; MF_00563; AdoHcyase; 1.
DR   InterPro; IPR042172; Adenosylhomocyst_ase-like_sf.
DR   InterPro; IPR000043; Adenosylhomocysteinase-like.
DR   InterPro; IPR015878; Ado_hCys_hydrolase_NAD-bd.
DR   InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR   InterPro; IPR020082; S-Ado-L-homoCys_hydrolase_CS.
DR   PANTHER; PTHR23420; PTHR23420; 1.
DR   Pfam; PF05221; AdoHcyase; 1.
DR   Pfam; PF00670; AdoHcyase_NAD; 1.
DR   PIRSF; PIRSF001109; Ad_hcy_hydrolase; 1.
DR   SMART; SM00996; AdoHcyase; 1.
DR   SMART; SM00997; AdoHcyase_NAD; 1.
DR   SUPFAM; SSF51735; SSF51735; 1.
DR   TIGRFAMs; TIGR00936; ahcY; 1.
DR   PROSITE; PS00738; ADOHCYASE_1; 1.
DR   PROSITE; PS00739; ADOHCYASE_2; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Hydrolase; NAD; One-carbon metabolism.
FT   INIT_MET        1
FT                   /note="Removed"
FT                   /evidence="ECO:0000250"
FT   CHAIN           2..495
FT                   /note="Adenosylhomocysteinase"
FT                   /id="PRO_0000428297"
FT   BINDING         71
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00563"
FT   BINDING         156
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00563"
FT   BINDING         218
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00563"
FT   BINDING         219..221
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00563"
FT   BINDING         248
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00563"
FT   BINDING         252
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00563"
FT   BINDING         253
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00563"
FT   BINDING         282..287
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00563"
FT   BINDING         305
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00563"
FT   BINDING         340
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00563"
FT   BINDING         361..363
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00563"
FT   BINDING         409
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00563"
SQ   SEQUENCE   495 AA;  54324 MW;  386EF292620E7327 CRC64;
     MTGNLVTKNS LTPDVRNGID FKIADLSLAD FGRKELRIAE HEMPGLMSLR REYAEVQPLK
     GARISGSLHM TVQTAVLIET LTALGAEVRW ASCNIFSTQD HAAAAVVVGP HGTPDEPKGV
     PVFAWKGETL EEYWWAAEQM LTWPDPDKPA NMILDDGGDA TMLVLRGMQY EKAGVVPPAE
     EDDPAEWKVF LNLLRTRFET DKDKWTKIAE SVKGVTEETT TGVLRLYQFA AAGDLAFPAI
     NVNDSVTKSK FDNKYGTRHS LIDGINRGTD ALIGGKKVLI CGYGDVGKGC AEAMKGQGAR
     VSVTEIDPIN ALQAMMEGFD VVTVEEAIGD ADIVVTATGN KDIIMLEHIK AMKDHAILGN
     IGHFDNEIDM AGLERSGATR VNVKPQVDLW TFGDTGRSII VLSEGRLLNL GNATGHPSFV
     MSNSFANQTI AQIELWTKND EYDNEVYRLP KHLDEKVARI HVEALGGHLT KLTKEQAEYL
     GVDVEGPYKP DHYRY
 
 
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