ID Q21LF8_SACD2 Unreviewed; 450 AA.
AC Q21LF8;
DT 18-APR-2006, integrated into UniProtKB/TrEMBL.
DT 18-APR-2006, sequence version 1.
DT 27-MAR-2024, entry version 110.
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 OrderedLocusNames=Sde_1209 {ECO:0000313|EMBL:ABD80471.1};
OS Saccharophagus degradans (strain 2-40 / ATCC 43961 / DSM 17024).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Cellvibrionales;
OC Cellvibrionaceae; Saccharophagus.
OX NCBI_TaxID=203122 {ECO:0000313|EMBL:ABD80471.1, ECO:0000313|Proteomes:UP000001947};
RN [1] {ECO:0000313|EMBL:ABD80471.1, ECO:0000313|Proteomes:UP000001947}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=2-40 / ATCC 43961 / DSM 17024
RC {ECO:0000313|Proteomes:UP000001947};
RX PubMed=18516288; DOI=10.1371/journal.pgen.1000087;
RA Weiner R.M., Taylor L.E.II., Henrissat B., Hauser L., Land M.,
RA Coutinho P.M., Rancurel C., Saunders E.H., Longmire A.G., Zhang H.,
RA Bayer E.A., Gilbert H.J., Larimer F., Zhulin I.B., Ekborg N.A., Lamed R.,
RA Richardson P.M., Borovok I., Hutcheson S.;
RT "Complete genome sequence of the complex carbohydrate-degrading marine
RT bacterium, Saccharophagus degradans strain 2-40 T.";
RL PLoS Genet. 4:E1000087-E1000087(2008).
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|ARBA:ARBA00000116,
CC 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; CP000282; ABD80471.1; -; Genomic_DNA.
DR AlphaFoldDB; Q21LF8; -.
DR STRING; 203122.Sde_1209; -.
DR KEGG; sde:Sde_1209; -.
DR eggNOG; COG0460; Bacteria.
DR HOGENOM; CLU_009116_1_0_6; -.
DR UniPathway; UPA00050; UER00063.
DR UniPathway; UPA00051; UER00465.
DR Proteomes; UP000001947; 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:UP000001947};
KW Threonine biosynthesis {ECO:0000256|ARBA:ARBA00022697,
KW ECO:0000256|RuleBase:RU000579}.
FT DOMAIN 369..446
FT /note="ACT"
FT /evidence="ECO:0000259|PROSITE:PS51671"
FT ACT_SITE 218
FT /note="Proton donor"
FT /evidence="ECO:0000256|PIRSR:PIRSR000098-1"
FT BINDING 24..31
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000256|PIRSR:PIRSR000098-2"
FT BINDING 118
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000256|PIRSR:PIRSR000098-2"
FT BINDING 203
FT /ligand="substrate"
FT /evidence="ECO:0000256|PIRSR:PIRSR000098-2"
SQ SEQUENCE 450 AA; 48153 MW; 93F17DC0A50EECEF CRC64;
MADCWRFVYP LEERSLKPVN IGLCGLGTVG GGTLTVLKRN LLDINAHAGK SVVLTHIGAR
RDNPAFDLSG IKVSRDVFAV ADDPEVDILV ELIGGTSVAK ELVLRAVRSG KHVVTANKAL
IAEFGNELFA EAAKHNVVIA YEAAVAGGIP IIRAMREGLA ANKIEWLAGI INGTGNFILT
EMRDKGRAFE DVLKEAQELG YAEADPTFDV EGIDAAHKLV ILASIAFGMP LQFDKVFTEG
ISTISTEDVA YAGELGYQVK HLGITRKRPN QGIELRVHPT LIPNSRLIAN VDGVMNAVLV
KGDAVGPTLY YGPGAGAEPT ASAVVSDIVD VSRLVGAESG SSVPHLGFAL DKLVDYPILP
IEEVETAYYI RISALDRPGV LSKITQILSD AGISIEALIQ KEPKEGQDHV PVILLTNRAI
EKQIIAAIKK IEALDSINGK VVRIRVESLK
//
