ID   MDH_NITOC               Reviewed;         311 AA.
AC   Q3J7E7;
DT   27-JUN-2006, integrated into UniProtKB/Swiss-Prot.
DT   08-NOV-2005, sequence version 1.
DT   03-AUG-2022, entry version 100.
DE   RecName: Full=Malate dehydrogenase {ECO:0000255|HAMAP-Rule:MF_00487};
DE            EC=1.1.1.37 {ECO:0000255|HAMAP-Rule:MF_00487};
GN   Name=mdh {ECO:0000255|HAMAP-Rule:MF_00487}; OrderedLocusNames=Noc_2802;
OS   Nitrosococcus oceani (strain ATCC 19707 / BCRC 17464 / JCM 30415 / NCIMB
OS   11848 / C-107).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Chromatiales; Chromatiaceae;
OC   Nitrosococcus.
OX   NCBI_TaxID=323261;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 19707 / BCRC 17464 / JCM 30415 / NCIMB 11848 / C-107;
RX   PubMed=16957257; DOI=10.1128/aem.00463-06;
RA   Klotz M.G., Arp D.J., Chain P.S.G., El-Sheikh A.F., Hauser L.J.,
RA   Hommes N.G., Larimer F.W., Malfatti S.A., Norton J.M., Poret-Peterson A.T.,
RA   Vergez L.M., Ward B.B.;
RT   "Complete genome sequence of the marine, chemolithoautotrophic, ammonia-
RT   oxidizing bacterium Nitrosococcus oceani ATCC 19707.";
RL   Appl. Environ. Microbiol. 72:6299-6315(2006).
CC   -!- FUNCTION: Catalyzes the reversible oxidation of malate to oxaloacetate.
CC       {ECO:0000255|HAMAP-Rule:MF_00487}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(S)-malate + NAD(+) = H(+) + NADH + oxaloacetate;
CC         Xref=Rhea:RHEA:21432, ChEBI:CHEBI:15378, ChEBI:CHEBI:15589,
CC         ChEBI:CHEBI:16452, ChEBI:CHEBI:57540, ChEBI:CHEBI:57945; EC=1.1.1.37;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00487};
CC   -!- SIMILARITY: Belongs to the LDH/MDH superfamily. MDH type 3 family.
CC       {ECO:0000255|HAMAP-Rule:MF_00487}.
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DR   EMBL; CP000127; ABA59249.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q3J7E7; -.
DR   SMR; Q3J7E7; -.
DR   STRING; 323261.Noc_2802; -.
DR   EnsemblBacteria; ABA59249; ABA59249; Noc_2802.
DR   KEGG; noc:Noc_2802; -.
DR   eggNOG; COG0039; Bacteria.
DR   HOGENOM; CLU_045401_2_1_6; -.
DR   OMA; ASCAEYI; -.
DR   Proteomes; UP000006838; Chromosome.
DR   GO; GO:0030060; F:L-malate dehydrogenase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0019752; P:carboxylic acid metabolic process; IEA:InterPro.
DR   GO; GO:0006099; P:tricarboxylic acid cycle; IEA:UniProtKB-UniRule.
DR   CDD; cd01339; LDH-like_MDH; 1.
DR   Gene3D; 3.90.110.10; -; 1.
DR   HAMAP; MF_00487; Malate_dehydrog_3; 1.
DR   InterPro; IPR001557; L-lactate/malate_DH.
DR   InterPro; IPR022383; Lactate/malate_DH_C.
DR   InterPro; IPR001236; Lactate/malate_DH_N.
DR   InterPro; IPR015955; Lactate_DH/Glyco_Ohase_4_C.
DR   InterPro; IPR011275; Malate_DH_type3.
DR   InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR   Pfam; PF02866; Ldh_1_C; 1.
DR   Pfam; PF00056; Ldh_1_N; 1.
DR   PIRSF; PIRSF000102; Lac_mal_DH; 1.
DR   PRINTS; PR00086; LLDHDRGNASE.
DR   SUPFAM; SSF51735; SSF51735; 1.
DR   SUPFAM; SSF56327; SSF56327; 1.
DR   TIGRFAMs; TIGR01763; MalateDH_bact; 1.
PE   3: Inferred from homology;
KW   NAD; Oxidoreductase; Reference proteome; Tricarboxylic acid cycle.
FT   CHAIN           1..311
FT                   /note="Malate dehydrogenase"
FT                   /id="PRO_0000241955"
FT   ACT_SITE        177
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00487"
FT   BINDING         10..15
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00487"
FT   BINDING         35
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00487"
FT   BINDING         84
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00487"
FT   BINDING         90
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00487"
FT   BINDING         97
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00487"
FT   BINDING         120..122
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00487"
FT   BINDING         122
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00487"
FT   BINDING         153
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00487"
SQ   SEQUENCE   311 AA;  33809 MW;  7352A69A7A1834AD CRC64;
     MAIKKITIVG AGRVGEATAQ FLVKNELCRE LVLLDAQEGV AQGAALDIQQ SAPLFDFDAR
     VTGSTNYELI ADSDLVVITA GKPRKPGMSR SDVLDSNLPI ITDIMNNVMR FAPQSLVMIV
     TNPVDVLTYH AWRHCGWDRA RVFGQAGVLD SARMASFIAG ETGLSVKDIS AMVLGGHGDT
     MLPLIRYTTI SGIPLTHFLD QQVIEKIIER TRHGGFEILR LRQTSSAYDA PAAAIAGMVD
     AIRHNRKRIL PCVAILQGEY GENEVAMGVP SVLGGDGLER IVELPLTEEE QEQFKHSVEA
     IRTDLAHLAR A