SAHH_PROM3
ID SAHH_PROM3 Reviewed; 476 AA.
AC A2C620;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 20-FEB-2007, sequence version 1.
DT 03-AUG-2022, entry version 95.
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}; OrderedLocusNames=P9303_01751;
OS Prochlorococcus marinus (strain MIT 9303).
OC Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC Prochlorococcus.
OX NCBI_TaxID=59922;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MIT 9303;
RX PubMed=18159947; DOI=10.1371/journal.pgen.0030231;
RA Kettler G.C., Martiny A.C., Huang K., Zucker J., Coleman M.L., Rodrigue S.,
RA Chen F., Lapidus A., Ferriera S., Johnson J., Steglich C., Church G.M.,
RA Richardson P., Chisholm S.W.;
RT "Patterns and implications of gene gain and loss in the evolution of
RT Prochlorococcus.";
RL PLoS Genet. 3:2515-2528(2007).
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 -!- 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; CP000554; ABM76930.1; -; Genomic_DNA.
DR AlphaFoldDB; A2C620; -.
DR SMR; A2C620; -.
DR STRING; 59922.P9303_01751; -.
DR EnsemblBacteria; ABM76930; ABM76930; P9303_01751.
DR KEGG; pmf:P9303_01751; -.
DR HOGENOM; CLU_025194_2_1_3; -.
DR OMA; NKYGCRE; -.
DR BioCyc; PMAR59922:G1G80-170-MON; -.
DR UniPathway; UPA00314; UER00076.
DR Proteomes; UP000002274; 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 CHAIN 1..476
FT /note="Adenosylhomocysteinase"
FT /id="PRO_1000024745"
FT BINDING 67
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00563"
FT BINDING 142
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00563"
FT BINDING 202
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00563"
FT BINDING 203..205
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00563"
FT BINDING 232
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00563"
FT BINDING 236
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00563"
FT BINDING 237
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00563"
FT BINDING 266..271
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00563"
FT BINDING 289
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00563"
FT BINDING 324
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00563"
FT BINDING 345..347
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00563"
FT BINDING 390
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00563"
SQ SEQUENCE 476 AA; 51770 MW; C9C79D29EC1AE3D4 CRC64;
MVAVPTSMAS LQAPPQYVVA DIDLADFGRK ELSIAETEMP GLMALRVKHG SEKPLKGARI
AGSLHMTIQT GVLIETLVAL GADVRWASCN IFSTQDHAAA AIAASGVPVF ATKGETLDEY
WAYTHRILEW GDGGTPNMIL DDGGDATGLV MLGSKAESDS SVLDNPGNEE ETALFASIRT
KLAQDSSFYS RIKSNIQGVT EETTTGVARL YQMQKSGELP FPAINVNDSV TKSKFDNLYG
CRESLVDGIK RATDVMVAGK VALVMGYGDV GKGSAQSLRG LGATVMIAEI DPICALQAAM
EGYRVVRLDE VVQDVDIFVT STGNFQVIRH EHLIRMKDEA IVCNIGHFDN EIDVASLKDY
SWENIKPQVD HITLPSGNKI ILLAEGRLVN LGCATGHPSF VMSNSFTNQV LAQIELFSKG
DKYADQVYVL PKHLDEMVAR LHLEKIGARL TELTKQQADY ISVPIEGPYK PDHYRY
