ID B5YEX2_DICT6 Unreviewed; 424 AA.
AC B5YEX2;
DT 25-NOV-2008, integrated into UniProtKB/TrEMBL.
DT 25-NOV-2008, sequence version 1.
DT 27-MAR-2024, entry version 86.
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=DICTH_1252 {ECO:0000313|EMBL:ACI19270.1};
OS Dictyoglomus thermophilum (strain ATCC 35947 / DSM 3960 / H-6-12).
OC Bacteria; Dictyoglomota; Dictyoglomia; Dictyoglomales; Dictyoglomaceae;
OC Dictyoglomus.
OX NCBI_TaxID=309799 {ECO:0000313|EMBL:ACI19270.1, ECO:0000313|Proteomes:UP000001733};
RN [1] {ECO:0000313|EMBL:ACI19270.1, ECO:0000313|Proteomes:UP000001733}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 35947 / DSM 3960 / H-6-12
RC {ECO:0000313|Proteomes:UP000001733};
RX PubMed=24558247;
RA Coil D.A., Badger J.H., Forberger H.C., Riggs F., Madupu R., Fedorova N.,
RA Ward N., Robb F.T., Eisen J.A.;
RT "Complete Genome Sequence of the Extreme Thermophile Dictyoglomus
RT thermophilum H-6-12.";
RL Genome Announc. 2:e00109-e00114(2014).
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; CP001146; ACI19270.1; -; Genomic_DNA.
DR RefSeq; WP_012547902.1; NC_011297.1.
DR AlphaFoldDB; B5YEX2; -.
DR STRING; 309799.DICTH_1252; -.
DR PaxDb; 309799-DICTH_1252; -.
DR KEGG; dth:DICTH_1252; -.
DR eggNOG; COG0460; Bacteria.
DR HOGENOM; CLU_009116_1_0_0; -.
DR OrthoDB; 9808167at2; -.
DR UniPathway; UPA00050; UER00063.
DR UniPathway; UPA00051; UER00465.
DR Proteomes; UP000001733; 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 345..424
FT /note="ACT"
FT /evidence="ECO:0000259|PROSITE:PS51671"
FT ACT_SITE 200
FT /note="Proton donor"
FT /evidence="ECO:0000256|PIRSR:PIRSR000098-1"
FT BINDING 100
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000256|PIRSR:PIRSR000098-2"
FT BINDING 185
FT /ligand="substrate"
FT /evidence="ECO:0000256|PIRSR:PIRSR000098-2"
SQ SEQUENCE 424 AA; 47775 MW; B2F6DFFA39CD39B1 CRC64;
MKIGILGGGQ VGQALWNTIY AEKENILNIL GEPLEIKKVL VRDLNKKRDI PRDFLTNNPD
EIIYDKEISL VVEVMGGEEP AHTYIKKALE EQKFIVTANK EVIALHGDEL YKIARKKGVD
IAFEASVGGG IPLIKTIKEA MAVDKVKEIW AIVNGTTNYI LTKMEEEHRD FEEVLKEAQK
LGYAEPDPSK DILGLDTRFK LAILSSFAHH TTIKPNDIYT EGIEKISLRD IQYAKELGYK
IKLLAISKFY NGEIEVRVHP TMISLSSPLS SVNGVYNAIL LKAEKRGDVL LYGEGAGPYP
TAMALLSDIL EASHTILYSV PRYYSFAYLY PSKIKKSDEI YTRYYMRLWV KDQPGVLAQI
AKILGENNIS ISSVVQKETS EKEGKAELVI LTHKTYEKNM IKAIKEIKLL PILEEWGSLI
RIEG
//
