ID   MDH_PSYA2               Reviewed;         329 AA.
AC   Q4FQU7;
DT   06-DEC-2005, integrated into UniProtKB/Swiss-Prot.
DT   30-AUG-2005, sequence version 1.
DT   03-AUG-2022, entry version 111.
DE   RecName: Full=Malate dehydrogenase {ECO:0000255|HAMAP-Rule:MF_01517};
DE            EC=1.1.1.37 {ECO:0000255|HAMAP-Rule:MF_01517};
GN   Name=mdh {ECO:0000255|HAMAP-Rule:MF_01517}; OrderedLocusNames=Psyc_1763;
OS   Psychrobacter arcticus (strain DSM 17307 / VKM B-2377 / 273-4).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Moraxellales; Moraxellaceae;
OC   Psychrobacter.
OX   NCBI_TaxID=259536;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 17307 / VKM B-2377 / 273-4;
RX   PubMed=20154119; DOI=10.1128/aem.02101-09;
RA   Ayala-del-Rio H.L., Chain P.S., Grzymski J.J., Ponder M.A., Ivanova N.,
RA   Bergholz P.W., Di Bartolo G., Hauser L., Land M., Bakermans C.,
RA   Rodrigues D., Klappenbach J., Zarka D., Larimer F., Richardson P.,
RA   Murray A., Thomashow M., Tiedje J.M.;
RT   "The genome sequence of Psychrobacter arcticus 273-4, a psychroactive
RT   Siberian permafrost bacterium, reveals mechanisms for adaptation to low-
RT   temperature growth.";
RL   Appl. Environ. Microbiol. 76:2304-2312(2010).
CC   -!- FUNCTION: Catalyzes the reversible oxidation of malate to oxaloacetate.
CC       {ECO:0000255|HAMAP-Rule:MF_01517}.
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_01517};
CC   -!- SIMILARITY: Belongs to the LDH/MDH superfamily. MDH type 2 family.
CC       {ECO:0000255|HAMAP-Rule:MF_01517}.
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DR   EMBL; CP000082; AAZ19611.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q4FQU7; -.
DR   SMR; Q4FQU7; -.
DR   STRING; 259536.Psyc_1763; -.
DR   EnsemblBacteria; AAZ19611; AAZ19611; Psyc_1763.
DR   KEGG; par:Psyc_1763; -.
DR   eggNOG; COG0039; Bacteria.
DR   HOGENOM; CLU_040727_2_0_6; -.
DR   OMA; TKGMERG; -.
DR   Proteomes; UP000000546; Chromosome.
DR   GO; GO:0030060; F:L-malate dehydrogenase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006108; P:malate metabolic process; IEA:InterPro.
DR   GO; GO:0006099; P:tricarboxylic acid cycle; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.90.110.10; -; 1.
DR   HAMAP; MF_01517; Malate_dehydrog_2; 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; IPR001252; Malate_DH_AS.
DR   InterPro; IPR010945; Malate_DH_type2.
DR   InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR   PANTHER; PTHR23382; PTHR23382; 1.
DR   Pfam; PF02866; Ldh_1_C; 1.
DR   Pfam; PF00056; Ldh_1_N; 1.
DR   PIRSF; PIRSF000102; Lac_mal_DH; 1.
DR   SUPFAM; SSF51735; SSF51735; 1.
DR   SUPFAM; SSF56327; SSF56327; 1.
DR   TIGRFAMs; TIGR01759; MalateDH-SF1; 1.
DR   PROSITE; PS00068; MDH; 1.
PE   3: Inferred from homology;
KW   NAD; Oxidoreductase; Reference proteome; Tricarboxylic acid cycle.
FT   CHAIN           1..329
FT                   /note="Malate dehydrogenase"
FT                   /id="PRO_0000113389"
FT   ACT_SITE        189
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01517"
FT   BINDING         13..19
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01517"
FT   BINDING         94
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01517"
FT   BINDING         100
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01517"
FT   BINDING         107
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01517"
FT   BINDING         114
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01517"
FT   BINDING         131..133
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01517"
FT   BINDING         133
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01517"
FT   BINDING         164
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01517"
SQ   SEQUENCE   329 AA;  35235 MW;  57C35528006AD4D9 CRC64;
     MSMKQPVRVA VTGAAGNISY AMLFRIASGE MLGKDQPVIL QLLEIAPALD ALKGVVMELE
     DCAFPLLAGI VQTDDATVAF KDVDYALLVG SRPRGPGMER KDLLEANAAI FSAQGKALND
     VASRDVKVLV VGNPANTNAL IAQRNAPDLD PRNFTAMTRL DHNRAMAQLA GKTDSTVNDV
     KKMIIWGNHS STQYPDLTAS TVNGKLALDL VDRTWYEGTY IPEVQQRGAA IIKARGASSA
     ASAANAAIAH MRTWVLGTDE NDWVSMGVYS NGEYGIAKGL IYSFPCTCTN GDWSIVDGVD
     VSSAFSKEKM AATEQELSEE RDAVAHLLP