ID D4M6M5_9FIRM Unreviewed; 425 AA.
AC D4M6M5;
DT 18-MAY-2010, integrated into UniProtKB/TrEMBL.
DT 18-MAY-2010, sequence version 1.
DT 24-JAN-2024, entry version 65.
DE RecName: Full=Homoserine dehydrogenase {ECO:0000256|ARBA:ARBA00013213, ECO:0000256|RuleBase:RU000579};
DE EC=1.1.1.3 {ECO:0000256|ARBA:ARBA00013213, ECO:0000256|RuleBase:RU000579};
GN ORFNames=RTO_24000 {ECO:0000313|EMBL:CBL26887.1};
OS [Ruminococcus] torques L2-14.
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Lachnospiraceae;
OC Mediterraneibacter.
OX NCBI_TaxID=657313 {ECO:0000313|EMBL:CBL26887.1, ECO:0000313|Proteomes:UP000008956};
RN [1] {ECO:0000313|EMBL:CBL26887.1, ECO:0000313|Proteomes:UP000008956}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=L2-14 {ECO:0000313|EMBL:CBL26887.1,
RC ECO:0000313|Proteomes:UP000008956};
RG metaHIT consortium -- http://www.metahit.eu/;
RA Pajon A., Turner K., Parkhill J., Duncan S., Flint H.;
RT "The genome sequence of Ruminococcus torques L2-14.";
RL Submitted (MAR-2010) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:CBL26887.1, ECO:0000313|Proteomes:UP000008956}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=L2-14 {ECO:0000313|EMBL:CBL26887.1,
RC ECO:0000313|Proteomes:UP000008956};
RA Pajon A.;
RL Submitted (MAR-2010) to the EMBL/GenBank/DDBJ databases.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=L-homoserine + NAD(+) = H(+) + L-aspartate 4-semialdehyde +
CC NADH; Xref=Rhea:RHEA:15757, ChEBI:CHEBI:15378, ChEBI:CHEBI:57476,
CC ChEBI:CHEBI:57540, ChEBI:CHEBI:57945, ChEBI:CHEBI:537519; EC=1.1.1.3;
CC Evidence={ECO:0000256|ARBA:ARBA00001406};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=L-homoserine + NADP(+) = H(+) + L-aspartate 4-semialdehyde +
CC NADPH; Xref=Rhea:RHEA:15761, ChEBI:CHEBI:15378, ChEBI:CHEBI:57476,
CC ChEBI:CHEBI:57783, ChEBI:CHEBI:58349, ChEBI:CHEBI:537519; EC=1.1.1.3;
CC Evidence={ECO:0000256|RuleBase:RU000579};
CC -!- PATHWAY: Amino-acid biosynthesis; L-methionine biosynthesis via de novo
CC pathway; L-homoserine from L-aspartate: step 3/3.
CC {ECO:0000256|RuleBase:RU000579}.
CC -!- PATHWAY: Amino-acid biosynthesis; L-threonine biosynthesis; L-threonine
CC from L-aspartate: step 3/5. {ECO:0000256|RuleBase:RU000579}.
CC -!- SIMILARITY: Belongs to the homoserine dehydrogenase family.
CC {ECO:0000256|ARBA:ARBA00006753, ECO:0000256|RuleBase:RU004171}.
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DR EMBL; FP929055; CBL26887.1; -; Genomic_DNA.
DR AlphaFoldDB; D4M6M5; -.
DR STRING; 33039.ERS852502_01199; -.
DR KEGG; rto:RTO_24000; -.
DR PATRIC; fig|657313.3.peg.2292; -.
DR HOGENOM; CLU_009116_1_0_9; -.
DR UniPathway; UPA00050; UER00063.
DR UniPathway; UPA00051; UER00465.
DR Proteomes; UP000008956; Chromosome.
DR GO; GO:0004412; F:homoserine dehydrogenase activity; IEA:UniProtKB-EC.
DR GO; GO:0050661; F:NADP binding; IEA:InterPro.
DR GO; GO:0009097; P:isoleucine biosynthetic process; IEA:UniProtKB-KW.
DR GO; GO:0009086; P:methionine biosynthetic process; IEA:UniProtKB-KW.
DR GO; GO:0009088; P:threonine biosynthetic process; IEA:UniProtKB-UniPathway.
DR CDD; cd04881; ACT_HSDH-Hom; 1.
DR Gene3D; 3.30.70.260; -; 1.
DR Gene3D; 3.40.50.720; NAD(P)-binding Rossmann-like Domain; 1.
DR InterPro; IPR045865; ACT-like_dom_sf.
DR InterPro; IPR002912; ACT_dom.
DR InterPro; IPR005106; Asp/hSer_DH_NAD-bd.
DR InterPro; IPR016204; HDH.
DR InterPro; IPR001342; HDH_cat.
DR InterPro; IPR019811; HDH_CS.
DR InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR PANTHER; PTHR43331; HOMOSERINE DEHYDROGENASE; 1.
DR PANTHER; PTHR43331:SF1; HOMOSERINE DEHYDROGENASE; 1.
DR Pfam; PF01842; ACT; 1.
DR Pfam; PF00742; Homoserine_dh; 1.
DR Pfam; PF03447; NAD_binding_3; 1.
DR PIRSF; PIRSF000098; Homoser_dehydrog; 1.
DR SUPFAM; SSF55021; ACT-like; 1.
DR SUPFAM; SSF55347; Glyceraldehyde-3-phosphate dehydrogenase-like, C-terminal domain; 1.
DR SUPFAM; SSF51735; NAD(P)-binding Rossmann-fold domains; 1.
DR PROSITE; PS51671; ACT; 1.
DR PROSITE; PS01042; HOMOSER_DHGENASE; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|RuleBase:RU000579};
KW Branched-chain amino acid biosynthesis {ECO:0000256|RuleBase:RU000579};
KW Isoleucine biosynthesis {ECO:0000256|RuleBase:RU000579};
KW Methionine biosynthesis {ECO:0000256|RuleBase:RU000579};
KW NADP {ECO:0000256|PIRSR:PIRSR000098-2, ECO:0000256|RuleBase:RU000579};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002,
KW ECO:0000256|RuleBase:RU000579};
KW Threonine biosynthesis {ECO:0000256|RuleBase:RU000579}.
FT DOMAIN 349..423
FT /note="ACT"
FT /evidence="ECO:0000259|PROSITE:PS51671"
FT ACT_SITE 204
FT /note="Proton donor"
FT /evidence="ECO:0000256|PIRSR:PIRSR000098-1"
FT BINDING 9..16
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000256|PIRSR:PIRSR000098-2"
FT BINDING 104
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000256|PIRSR:PIRSR000098-2"
FT BINDING 189
FT /ligand="substrate"
FT /evidence="ECO:0000256|PIRSR:PIRSR000098-2"
SQ SEQUENCE 425 AA; 46339 MW; EDA0E22F83A4C235 CRC64;
MKTVKVAILG LGTVGSGVYK LIQKRADVME KTIGAQMEVK KILVRNINKK REGVDASLLT
DNWNDIIEDE EIQIVIEVMG GIEPAKTMIL EALRAGKNVV SANKDLIAEE GHVLLATAEE
NHVDFLFEAA VAGAIPIIRP MKQCLAVNDI SEVVGIVNGT TNYILTKMTE EGMDFSDALE
KAQELGFAEA DPTSDVEGLD AGRKVAIMAS IAFHSRVVFP NVFTEGITKI TAKDIEYAKE
FDSVIKLLGV AHNTESGIEV GVYPMMIHKE HPLASVRDSF NAVFVHGDAA DDAMFYGRGA
GEFPTASAVM GDVIDVARNM AYGCNGRISC TCYKNLPVKD IGDVKNKFFI RMQVTNEPGV
LAAVAEVFGN HKVSITRVVQ EHTQPHQAEL VIVTESVKEK YMKQALEELL ALPSILEVSS
IIREY
//
