ID I0JRR8_HALH3 Unreviewed; 431 AA.
AC I0JRR8;
DT 13-JUN-2012, integrated into UniProtKB/TrEMBL.
DT 13-JUN-2012, sequence version 1.
DT 24-JAN-2024, entry version 58.
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 Name=hom1 {ECO:0000313|EMBL:CCG46839.1};
GN OrderedLocusNames=HBHAL_4499 {ECO:0000313|EMBL:CCG46839.1};
OS Halobacillus halophilus (strain ATCC 35676 / DSM 2266 / JCM 20832 / KCTC
OS 3685 / LMG 17431 / NBRC 102448 / NCIMB 2269) (Sporosarcina halophila).
OC Bacteria; Bacillota; Bacilli; Bacillales; Bacillaceae; Halobacillus.
OX NCBI_TaxID=866895 {ECO:0000313|EMBL:CCG46839.1, ECO:0000313|Proteomes:UP000007397};
RN [1] {ECO:0000313|EMBL:CCG46839.1, ECO:0000313|Proteomes:UP000007397}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 35676 / DSM 2266 / JCM 20832 / KCTC 3685 / LMG 17431 /
RC NBRC 102448 / NCIMB 2269 {ECO:0000313|Proteomes:UP000007397};
RX PubMed=22583374; DOI=10.1111/j.1462-2920.2012.02770.x;
RA Saum S.H., Pfeiffer F., Palm P., Rampp M., Schuster S.C., Muller V.,
RA Oesterhelt D.;
RT "Chloride and organic osmolytes: a hybrid strategy to cope with elevated
RT salinities by the moderately halophilic, chloride-dependent bacterium
RT Halobacillus halophilus.";
RL Environ. Microbiol. 15:1619-1633(2013).
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; HE717023; CCG46839.1; -; Genomic_DNA.
DR RefSeq; WP_014644724.1; NC_017668.1.
DR AlphaFoldDB; I0JRR8; -.
DR STRING; 866895.HBHAL_4499; -.
DR KEGG; hhd:HBHAL_4499; -.
DR PATRIC; fig|866895.3.peg.3533; -.
DR eggNOG; COG0460; Bacteria.
DR HOGENOM; CLU_009116_1_0_9; -.
DR UniPathway; UPA00050; UER00063.
DR UniPathway; UPA00051; UER00465.
DR Proteomes; UP000007397; 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 Reference proteome {ECO:0000313|Proteomes:UP000007397};
KW Threonine biosynthesis {ECO:0000256|RuleBase:RU000579}.
FT DOMAIN 351..426
FT /note="ACT"
FT /evidence="ECO:0000259|PROSITE:PS51671"
FT ACT_SITE 206
FT /note="Proton donor"
FT /evidence="ECO:0000256|PIRSR:PIRSR000098-1"
FT BINDING 10..17
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000256|PIRSR:PIRSR000098-2"
FT BINDING 106
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000256|PIRSR:PIRSR000098-2"
FT BINDING 191
FT /ligand="substrate"
FT /evidence="ECO:0000256|PIRSR:PIRSR000098-2"
SQ SEQUENCE 431 AA; 47322 MW; E69BD12F1CE5AF16 CRC64;
MKNTITVGLL GLGTVGSGVI EILHDHKERI QHRTGCEVTI KSVLVNNVEK PRELPDDSTN
LTDRYEDITR DPEIDVVVEV MGGIDHTLTI LLEAIQHGKH VVTANKDLIA QHGAELFAAC
QESGSDLYYE ASVAAGVPII RSIMDGLSSD RITKMMGIVN GTTNYIMTKM SQDGADFDSI
LKEAQDLGFA EADPTADVDG LDAARKMTIL SILGFSMPFN LEDVEVKGIR GLSLSDIQYA
EELGYRIKLI GIAENDVNGV SVSVEPTFLP ATHPLSSVND EFNAVYVYGD AVGETMFYGP
GAGKLPTATA VVSDLIAVLK NIRLGTTGTA YVQPQFPKQV MPKDQQMTKK YIRLHVLDQT
GMLMEITKIF AQYNISFDQI IQRSYEEDGE RELMMVTHQV SEEDFSQAMK EIEQHHSVKS
VESIFRVEGG S
//
