ID   A0A2T3KHQ6_9GAMM        Unreviewed;       804 AA.
AC   A0A2T3KHQ6;
DT   18-JUL-2018, integrated into UniProtKB/TrEMBL.
DT   18-JUL-2018, sequence version 1.
DT   22-FEB-2023, entry version 15.
DE   RecName: Full=Bifunctional aspartokinase/homoserine dehydrogenase {ECO:0000256|PIRNR:PIRNR000727};
DE   Includes:
DE     RecName: Full=Aspartokinase {ECO:0000256|PIRNR:PIRNR000727};
DE              EC=2.7.2.4 {ECO:0000256|PIRNR:PIRNR000727};
DE   Includes:
DE     RecName: Full=Homoserine dehydrogenase {ECO:0000256|PIRNR:PIRNR000727};
DE              EC=1.1.1.3 {ECO:0000256|PIRNR:PIRNR000727};
GN   Name=metL {ECO:0000313|EMBL:PSU98703.1};
GN   Synonyms=metM {ECO:0000313|EMBL:PSU98703.1};
GN   ORFNames=C9J27_11495 {ECO:0000313|EMBL:PSU98703.1};
OS   Photobacterium kishitanii.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Vibrionales; Vibrionaceae;
OC   Photobacterium.
OX   NCBI_TaxID=318456 {ECO:0000313|EMBL:PSU98703.1, ECO:0000313|Proteomes:UP000241426};
RN   [1] {ECO:0000313|EMBL:PSU98703.1, ECO:0000313|Proteomes:UP000241426}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=FS-7.2 {ECO:0000313|EMBL:PSU98703.1,
RC   ECO:0000313|Proteomes:UP000241426};
RA   Butler K.;
RT   "Whole genome sequencing of Histamine producing bacteria.";
RL   Submitted (JAN-2018) to the EMBL/GenBank/DDBJ databases.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + L-aspartate = 4-phospho-L-aspartate + ADP;
CC         Xref=Rhea:RHEA:23776, ChEBI:CHEBI:29991, ChEBI:CHEBI:30616,
CC         ChEBI:CHEBI:57535, ChEBI:CHEBI:456216; EC=2.7.2.4;
CC         Evidence={ECO:0000256|PIRNR:PIRNR000727};
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|PIRNR:PIRNR000727};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-lysine biosynthesis via DAP
CC       pathway; (S)-tetrahydrodipicolinate from L-aspartate: step 1/4.
CC       {ECO:0000256|PIRNR:PIRNR000727}.
CC   -!- PATHWAY: Amino-acid biosynthesis; L-methionine biosynthesis via de novo
CC       pathway; L-homoserine from L-aspartate: step 1/3.
CC       {ECO:0000256|ARBA:ARBA00004986, ECO:0000256|PIRNR:PIRNR000727}.
CC   -!- PATHWAY: Amino-acid biosynthesis; L-methionine biosynthesis via de novo
CC       pathway; L-homoserine from L-aspartate: step 3/3.
CC       {ECO:0000256|ARBA:ARBA00005062, ECO:0000256|PIRNR:PIRNR000727}.
CC   -!- PATHWAY: Amino-acid biosynthesis; L-threonine biosynthesis; L-threonine
CC       from L-aspartate: step 1/5. {ECO:0000256|ARBA:ARBA00005139,
CC       ECO:0000256|PIRNR:PIRNR000727}.
CC   -!- PATHWAY: Amino-acid biosynthesis; L-threonine biosynthesis; L-threonine
CC       from L-aspartate: step 3/5. {ECO:0000256|ARBA:ARBA00005056,
CC       ECO:0000256|PIRNR:PIRNR000727}.
CC   -!- SUBUNIT: Homotetramer. {ECO:0000256|ARBA:ARBA00011881,
CC       ECO:0000256|PIRNR:PIRNR000727}.
CC   -!- SIMILARITY: In the C-terminal section; belongs to the homoserine
CC       dehydrogenase family. {ECO:0000256|PIRNR:PIRNR000727}.
CC   -!- SIMILARITY: In the N-terminal section; belongs to the aspartokinase
CC       family. {ECO:0000256|PIRNR:PIRNR000727}.
CC   -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC       whole genome shotgun (WGS) entry which is preliminary data.
CC       {ECO:0000313|EMBL:PSU98703.1}.
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DR   EMBL; PYNF01000008; PSU98703.1; -; Genomic_DNA.
DR   AlphaFoldDB; A0A2T3KHQ6; -.
DR   EnsemblBacteria; PSU98703; PSU98703; C9J27_11495.
DR   UniPathway; UPA00034; UER00015.
DR   UniPathway; UPA00050; UER00063.
DR   UniPathway; UPA00051; UER00462.
DR   Proteomes; UP000241426; Unassembled WGS sequence.
DR   GO; GO:0004072; F:aspartate kinase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0004412; F:homoserine dehydrogenase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0050661; F:NADP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0009089; P:lysine biosynthetic process via diaminopimelate; IEA:UniProtKB-UniRule.
DR   GO; GO:0016310; P:phosphorylation; IEA:UniProtKB-KW.
DR   GO; GO:0009088; P:threonine biosynthetic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.30.70.260; -; 2.
DR   Gene3D; 3.40.1160.10; Acetylglutamate kinase-like; 1.
DR   Gene3D; 1.20.120.1320; Aspartokinase, catalytic domain; 1.
DR   Gene3D; 3.40.50.720; NAD(P)-binding Rossmann-like Domain; 1.
DR   InterPro; IPR036393; AceGlu_kinase-like_sf.
DR   InterPro; IPR001048; Asp/Glu/Uridylate_kinase.
DR   InterPro; IPR005106; Asp/hSer_DH_NAD-bd.
DR   InterPro; IPR042199; AsparK_Bifunc_asparK/hSer_DH.
DR   InterPro; IPR018042; Aspartate_kinase_CS.
DR   InterPro; IPR011147; Bifunc_aspartokin/hSer_DH.
DR   InterPro; IPR001342; HDH_cat.
DR   InterPro; IPR019811; HDH_CS.
DR   InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR   PANTHER; PTHR43070; -; 1.
DR   PANTHER; PTHR43070:SF5; HOMOSERINE DEHYDROGENASE; 1.
DR   Pfam; PF00696; AA_kinase; 1.
DR   Pfam; PF00742; Homoserine_dh; 1.
DR   Pfam; PF03447; NAD_binding_3; 1.
DR   PIRSF; PIRSF000727; ThrA; 1.
DR   SUPFAM; SSF53633; Carbamate kinase-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; PS00324; ASPARTOKINASE; 1.
DR   PROSITE; PS01042; HOMOSER_DHGENASE; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605,
KW   ECO:0000256|PIRNR:PIRNR000727};
KW   ATP-binding {ECO:0000256|PIRNR:PIRNR000727};
KW   Kinase {ECO:0000256|PIRNR:PIRNR000727, ECO:0000313|EMBL:PSU98703.1};
KW   NADP {ECO:0000256|ARBA:ARBA00022857, ECO:0000256|PIRNR:PIRNR000727};
KW   Nucleotide-binding {ECO:0000256|PIRNR:PIRNR000727};
KW   Oxidoreductase {ECO:0000256|ARBA:ARBA00023002,
KW   ECO:0000256|PIRNR:PIRNR000727};
KW   Transferase {ECO:0000256|PIRNR:PIRNR000727, ECO:0000313|EMBL:PSU98703.1}.
FT   DOMAIN          7..278
FT                   /note="Aspartate/glutamate/uridylate kinase"
FT                   /evidence="ECO:0000259|Pfam:PF00696"
FT   DOMAIN          459..593
FT                   /note="Aspartate/homoserine dehydrogenase NAD-binding"
FT                   /evidence="ECO:0000259|Pfam:PF03447"
FT   DOMAIN          602..797
FT                   /note="Homoserine dehydrogenase catalytic"
FT                   /evidence="ECO:0000259|Pfam:PF00742"
SQ   SEQUENCE   804 AA;  88110 MW;  B410001D844B814F CRC64;
     MKKDLRQLHK FGGSSLADSK CYRRVAEILG AYSKNHDLVV VSAAGKTTNQ LLLWLEQLVT
     DGRLAHATLL SIRTFQQQLI TELLEPEQAQ SLQQQLYAEL ALIAKWGESP LTTEVKNAVL
     GHGELWSARL LAALLNQYQL AAVAIDSRLF LRADHAIQPE VDKVLSQPLL QQLLVQYPQQ
     RLVITGFMAA NQYQQTVLLG RNGSDYSATM VGALAAVERV TIWSDVAGVY SADPRKVTNA
     CLLPLLRLDE ANELARLAAP VLHSRTLQPV AQSAIDLTLR CSHQLESGST RVERVLASGR
     GAKIISSLDD VCLIELGVPQ GMALTSIQHD VQQLLDRAQL QPLAKKVDQG KRRIILAYTQ
     EVVNSVLSLL QDSGVAAELR LREGFSMVAA VGAGVLNNPN HCHGFYQQLK GLPVEFMTEA
     ESGLSLVAVL RDVETDKLVN AIHQALFQAQ KSIGIVLCGK GNIGSHWLSL FSREKAALEL
     RHGMRFSLIG IVGQQQCWLN SQGIEPQTAL EQFPQHAVDY QLPQLLSQLA AVDYDDVVMV
     DVTASHQLAA LYPQIALSGL HLISANKIAG SAATTEYQMV IDAFAKSSRY WLYNATVGAG
     LPINHTVRDL RESGDCILAI SGIFSGTLSW LFQQFDGSQP FSELLEQAWQ QGLTEPDPRH
     DLDGSDVMRK LIILARESGF EIEPQQVQVE SLVPLSLQAL SVDAFFEQAT ELDILLAEKL
     ACAVSEDKVL RYVARLDRHG KAYVGLEALP SEHALANLLP CDNIFAIESQ WYRENPLVIR
     GPGAGRDVTA GALISDINRL ATML
//