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(-) Description

Title :  1.70 A RESOLUTION STRUCTURE OF THE MALATE DEHYDROGENASE FROM CHLOROFLEXUS AURANTIACUS
 
Authors :  R. Talon, D. Madern, E. Girard
Date :  11 Jan 14  (Deposition) - 05 Feb 14  (Release) - 19 Mar 14  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.70
Chains :  Asym. Unit :  A,D
Biol. Unit 1:  A,D  (2x)
Biol. Unit 2:  A,D  (1x)
Keywords :  Thermophile, Oxidoreductase, Tricarboxylic Acid Cycle (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  R. Talon, N. Coquelle, D. Madern, E. Girard
An Experimental Point Of View On Hydration/Solvation In Halophilic Proteins.
Front. Microbiol. V. 5 66 2014
PubMed-ID: 24600446  |  Reference-DOI: 10.3389/FMICB.2014.00066
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - MALATE DEHYDROGENASE
    Atcc: 2936
    Chains: A, D
    EC Number: 1.1.1.37
    Organism Scientific: CHLOROFLEXUS SP. Y-400-FL
    Organism Taxid: 480224
    Other Details: DSM 63

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit : AD
Biological Unit 1 (2x): AD
Biological Unit 2 (1x): AD

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (4, 21)

Asymmetric Unit (4, 21)
No.NameCountTypeFull Name
1ACT5Ligand/IonACETATE ION
2CD11Ligand/IonCADMIUM ION
3CL1Ligand/IonCHLORIDE ION
4PEG4Ligand/IonDI(HYDROXYETHYL)ETHER
Biological Unit 1 (2, 18)
No.NameCountTypeFull Name
1ACT10Ligand/IonACETATE ION
2CD-1Ligand/IonCADMIUM ION
3CL-1Ligand/IonCHLORIDE ION
4PEG8Ligand/IonDI(HYDROXYETHYL)ETHER
Biological Unit 2 (2, 9)
No.NameCountTypeFull Name
1ACT5Ligand/IonACETATE ION
2CD-1Ligand/IonCADMIUM ION
3CL-1Ligand/IonCHLORIDE ION
4PEG4Ligand/IonDI(HYDROXYETHYL)ETHER

(-) Sites  (21, 21)

Asymmetric Unit (21, 21)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREGLU A:165 , HOH A:2284 , HOH A:2285 , HOH A:2288 , HOH A:2289 , HOH A:2466BINDING SITE FOR RESIDUE CD A1310
02AC2SOFTWAREASP A:33 , ACT A:1317 , HOH A:2057 , HOH A:2467BINDING SITE FOR RESIDUE CD A1311
03AC3SOFTWAREASP A:90 , HOH A:2166 , HOH A:2170 , HOH A:2468BINDING SITE FOR RESIDUE CD A1312
04AC4SOFTWAREGLU A:159 , ARG A:201 , HOH A:2272 , HOH A:2274 , GLU D:159 , HOH D:2289BINDING SITE FOR RESIDUE CD A1313
05AC5SOFTWAREGLU A:281 , HOH A:2469BINDING SITE FOR RESIDUE CD A1314
06AC6SOFTWAREARG A:208 , HOH A:2034BINDING SITE FOR RESIDUE CL A1315
07AC7SOFTWAREPRO A:121 , ASP A:123 , ALA A:124 , GLU A:178 , THR A:302 , HOH A:2232BINDING SITE FOR RESIDUE ACT A1316
08AC8SOFTWAREILE A:8 , GLY A:9 , ASP A:33 , ILE A:34 , TYR A:65 , SER A:78 , CD A:1311BINDING SITE FOR RESIDUE ACT A1317
09AC9SOFTWAREPHE D:12 , LEU D:220 , THR D:222 , GLY D:223 , SER D:224 , TYR D:226 , PEG D:1319 , HOH D:2472 , HOH D:2473 , HOH D:2474 , HOH D:2475BINDING SITE FOR RESIDUE PEG A1318
10BC1SOFTWAREARG A:100 , GLU A:131 , VAL A:132BINDING SITE FOR RESIDUE PEG A1319
11BC2SOFTWAREGLY A:214 , VAL A:217 , ASN A:218 , HOH A:2360 , HOH A:2362BINDING SITE FOR RESIDUE PEG A1320
12BC3SOFTWAREHOH A:2382 , HOH A:2383 , GLU D:165 , HOH D:2096 , HOH D:2297 , HOH D:2447BINDING SITE FOR RESIDUE CD D1310
13BC4SOFTWAREASP D:33 , ACT D:1318 , PEG D:1319BINDING SITE FOR RESIDUE CD D1311
14BC5SOFTWAREGLU D:89 , ASP D:90 , HOH D:2183BINDING SITE FOR RESIDUE CD D1312
15BC6SOFTWAREASP D:200 , ASP D:243 , GLU D:277 , HOH D:2338BINDING SITE FOR RESIDUE CD D1313
16BC7SOFTWAREGLU D:36BINDING SITE FOR RESIDUE CD D1314
17BC8SOFTWAREASP D:177BINDING SITE FOR RESIDUE CD D1315
18BC9SOFTWAREHOH A:2272 , HOH A:2279 , GLU D:159 , ILE D:197 , ALA D:198 , ARG D:201 , HOH D:2339BINDING SITE FOR RESIDUE ACT D1316
19CC1SOFTWARELYS D:24 , GLU D:53 , ALA D:234 , GLN D:235 , HOH D:2033 , HOH D:2092BINDING SITE FOR RESIDUE ACT D1317
20CC2SOFTWAREILE D:8 , GLY D:9 , ASP D:33 , ILE D:34 , SER D:78 , CD D:1311 , HOH D:2449BINDING SITE FOR RESIDUE ACT D1318
21CC3SOFTWAREPEG A:1318 , ALA D:10 , GLY D:11 , ASP D:33 , VAL D:38 , LYS D:42 , CD D:1311 , HOH D:2075 , HOH D:2448 , HOH D:2450BINDING SITE FOR RESIDUE PEG D1319

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 4CL3)

(-) Cis Peptide Bonds  (2, 2)

Asymmetric Unit
No.Residues
1Asn A:120 -Pro A:121
2Asn D:120 -Pro D:121

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 4CL3)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 4CL3)

(-) Exons   (0, 0)

(no "Exon" information available for 4CL3)

(-) Sequences/Alignments

Asymmetric Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it) 
Chain A from PDB  Type:PROTEIN  Length:309
 aligned with MDH_CHLAA | P80040 from UniProtKB/Swiss-Prot  Length:309

    Alignment length:309
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300         
            MDH_CHLAA     1 MRKKISIIGAGFVGSTTAHWLAAKELGDIVLLDFVEGVPQGKALDLYEASPIEGFDVRVTGTNNYADTANSDVIVVTSGAPRKPGMSREDLIKVNADITRACISQAAPLSPNAVIIMVNNPLDAMTYLAAEVSGFPKERVIGQAGVLDAARYRTFIAMEAGVSVEDVQAMLMGGHGDEMVPLPRFSTISGIPVSEFIAPDRLAQIVERTRKGGGEIVNLLKTGSAYYAPAAATAQMVEAVLKDKKRVMPVAAYLTGQYGLNDIYFGVPVILGAGGVEKILELPLNEEEMALLNASAKAVRATLDTLKSL 309
               SCOP domains d4cl3a1 A:1-143 Malate dehydrogenase                                                                                                           d4cl3a2 A:144-309 Malate dehydrogenase                                                                                                                                 SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeee..hhhhhhhhhhhhhh...eeeee....hhhhhhhhhhhhhhhhhh....eeee.hhhhhh...eeee..........hhhhhhhhhhhhhhhhhhhhhhhh...eeee...hhhhhhhhhhhhhh.hhh.eee.hhhhhhhhhhhhhhhhhh.hhh.eee..ee.hhh.ee.hhh.eee..ee.hhh.hhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhh...eeeeeeeeee.hhh.eeeeeeeeeeee..eeeee.....hhhhhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4cl3 A   1 MRKKISIIGAGFVGSTTAHWLAAKELGDIVLLDIVEGVPQGKALDLYEASPIEGFDVRVTGTNNYADTANSDVIVVTSGAPRKPGMSREDLIKVNADITRACISQAAPLSPNAVIIMVNNPLDAMTYLAAEVSGFPKERVIGQAGVLDAARYRTFIAMEAGVSVEDVQAMLMGGHGDEMVPLPRFSTISGIPVSEFIAPDRLAQIVERTRKGGGEIVNLLKTGSAYYAPAAATAQMVEAVLKDKKRVMPVAAYLTGQYGLNDIYFGVPVILGAGGVEKILELPLNEEEMALLNASAKAVRATLDTLKSL 309
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300         


Chain A from PDB  Type:PROTEIN  Length:309
 aligned with MDH_CHLSY | B9LLP6 from UniProtKB/Swiss-Prot  Length:309

    Alignment length:309
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300         
            MDH_CHLSY     1 MRKKISIIGAGFVGSTTAHWLAAKELGDIVLLDIVEGVPQGKALDLYEASPIEGFDVRVTGTNNYADTANSDVIVVTSGAPRKPGMSREDLIKVNADITRACISQAAPLSPNAVIIMVNNPLDAMTYLAAEVSGFPKERVIGQAGVLDAARYRTFIAMEAGVSVEDVQAMLMGGHGDEMVPLPRFSTISGIPVSEFIAPDRLAQIVERTRKGGGEIVNLLKTGSAYYAPAAATAQMVEAVLKDKKRVMPVAAYLTGQYGLNDIYFGVPVILGAGGVEKILELPLNEEEMALLNASAKAVRATLDTLKSL 309
               SCOP domains d4cl3a1 A:1-143 Malate dehydrogenase                                                                                                           d4cl3a2 A:144-309 Malate dehydrogenase                                                                                                                                 SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeee..hhhhhhhhhhhhhh...eeeee....hhhhhhhhhhhhhhhhhh....eeee.hhhhhh...eeee..........hhhhhhhhhhhhhhhhhhhhhhhh...eeee...hhhhhhhhhhhhhh.hhh.eee.hhhhhhhhhhhhhhhhhh.hhh.eee..ee.hhh.ee.hhh.eee..ee.hhh.hhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhh...eeeeeeeeee.hhh.eeeeeeeeeeee..eeeee.....hhhhhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4cl3 A   1 MRKKISIIGAGFVGSTTAHWLAAKELGDIVLLDIVEGVPQGKALDLYEASPIEGFDVRVTGTNNYADTANSDVIVVTSGAPRKPGMSREDLIKVNADITRACISQAAPLSPNAVIIMVNNPLDAMTYLAAEVSGFPKERVIGQAGVLDAARYRTFIAMEAGVSVEDVQAMLMGGHGDEMVPLPRFSTISGIPVSEFIAPDRLAQIVERTRKGGGEIVNLLKTGSAYYAPAAATAQMVEAVLKDKKRVMPVAAYLTGQYGLNDIYFGVPVILGAGGVEKILELPLNEEEMALLNASAKAVRATLDTLKSL 309
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300         


Chain D from PDB  Type:PROTEIN  Length:309
 aligned with MDH_CHLAA | P80040 from UniProtKB/Swiss-Prot  Length:309

    Alignment length:309
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300         
            MDH_CHLAA     1 MRKKISIIGAGFVGSTTAHWLAAKELGDIVLLDFVEGVPQGKALDLYEASPIEGFDVRVTGTNNYADTANSDVIVVTSGAPRKPGMSREDLIKVNADITRACISQAAPLSPNAVIIMVNNPLDAMTYLAAEVSGFPKERVIGQAGVLDAARYRTFIAMEAGVSVEDVQAMLMGGHGDEMVPLPRFSTISGIPVSEFIAPDRLAQIVERTRKGGGEIVNLLKTGSAYYAPAAATAQMVEAVLKDKKRVMPVAAYLTGQYGLNDIYFGVPVILGAGGVEKILELPLNEEEMALLNASAKAVRATLDTLKSL 309
               SCOP domains d4cl3d1 D:1-143 Malate dehydrogenase                                                                                                           d4cl3d2 D:144-309 Malate dehydrogenase                                                                                                                                 SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeee..hhhhhhhhhhhhhh...eeeee....hhhhhhhhhhhhhhhhhh....eeee.hhhhhh...eeee..........hhhhhhhhhhhhhhhhhhhhhhhh...eeee...hhhhhhhhhhhhhh.hhh.eee.hhhhhhhhhhhhhhhhhh.hhh.eee..ee.hhh.ee.hhh.eee..ee.hhh.hhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhh...eeeeeeeeee.hhh.eeeeeeeeeeee..eeeee.....hhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4cl3 D   1 MRKKISIIGAGFVGSTTAHWLAAKELGDIVLLDIVEGVPQGKALDLYEASPIEGFDVRVTGTNNYADTANSDVIVVTSGAPRKPGMSREDLIKVNADITRACISQAAPLSPNAVIIMVNNPLDAMTYLAAEVSGFPKERVIGQAGVLDAARYRTFIAMEAGVSVEDVQAMLMGGHGDEMVPLPRFSTISGIPVSEFIAPDRLAQIVERTRKGGGEIVNLLKTGSAYYAPAAATAQMVEAVLKDKKRVMPVAAYLTGQYGLNDIYFGVPVILGAGGVEKILELPLNEEEMALLNASAKAVRATLDTLKSL 309
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300         


Chain D from PDB  Type:PROTEIN  Length:309
 aligned with MDH_CHLSY | B9LLP6 from UniProtKB/Swiss-Prot  Length:309

    Alignment length:309
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300         
            MDH_CHLSY     1 MRKKISIIGAGFVGSTTAHWLAAKELGDIVLLDIVEGVPQGKALDLYEASPIEGFDVRVTGTNNYADTANSDVIVVTSGAPRKPGMSREDLIKVNADITRACISQAAPLSPNAVIIMVNNPLDAMTYLAAEVSGFPKERVIGQAGVLDAARYRTFIAMEAGVSVEDVQAMLMGGHGDEMVPLPRFSTISGIPVSEFIAPDRLAQIVERTRKGGGEIVNLLKTGSAYYAPAAATAQMVEAVLKDKKRVMPVAAYLTGQYGLNDIYFGVPVILGAGGVEKILELPLNEEEMALLNASAKAVRATLDTLKSL 309
               SCOP domains d4cl3d1 D:1-143 Malate dehydrogenase                                                                                                           d4cl3d2 D:144-309 Malate dehydrogenase                                                                                                                                 SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeee..hhhhhhhhhhhhhh...eeeee....hhhhhhhhhhhhhhhhhh....eeee.hhhhhh...eeee..........hhhhhhhhhhhhhhhhhhhhhhhh...eeee...hhhhhhhhhhhhhh.hhh.eee.hhhhhhhhhhhhhhhhhh.hhh.eee..ee.hhh.ee.hhh.eee..ee.hhh.hhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhh...eeeeeeeeee.hhh.eeeeeeeeeeee..eeeee.....hhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4cl3 D   1 MRKKISIIGAGFVGSTTAHWLAAKELGDIVLLDIVEGVPQGKALDLYEASPIEGFDVRVTGTNNYADTANSDVIVVTSGAPRKPGMSREDLIKVNADITRACISQAAPLSPNAVIIMVNNPLDAMTYLAAEVSGFPKERVIGQAGVLDAARYRTFIAMEAGVSVEDVQAMLMGGHGDEMVPLPRFSTISGIPVSEFIAPDRLAQIVERTRKGGGEIVNLLKTGSAYYAPAAATAQMVEAVLKDKKRVMPVAAYLTGQYGLNDIYFGVPVILGAGGVEKILELPLNEEEMALLNASAKAVRATLDTLKSL 309
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (2, 4)

Asymmetric Unit
(-)
Class: Alpha and beta proteins (a+b) (23004)
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 4CL3)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 4CL3)

(-) Gene Ontology  (8, 16)

Asymmetric Unit(hide GO term definitions)
Chain A,D   (MDH_CHLSY | B9LLP6)
molecular function
    GO:0030060    L-malate dehydrogenase activity    Catalysis of the reaction: (S)-malate + NAD+ = oxaloacetate + NADH + H+.
    GO:0003824    catalytic activity    Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
    GO:0016491    oxidoreductase activity    Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
    GO:0016616    oxidoreductase activity, acting on the CH-OH group of donors, NAD or NADP as acceptor    Catalysis of an oxidation-reduction (redox) reaction in which a CH-OH group acts as a hydrogen or electron donor and reduces NAD+ or NADP.
biological process
    GO:0005975    carbohydrate metabolic process    The chemical reactions and pathways involving carbohydrates, any of a group of organic compounds based of the general formula Cx(H2O)y. Includes the formation of carbohydrate derivatives by the addition of a carbohydrate residue to another molecule.
    GO:0019752    carboxylic acid metabolic process    The chemical reactions and pathways involving carboxylic acids, any organic acid containing one or more carboxyl (COOH) groups or anions (COO-).
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
    GO:0006099    tricarboxylic acid cycle    A nearly universal metabolic pathway in which the acetyl group of acetyl coenzyme A is effectively oxidized to two CO2 and four pairs of electrons are transferred to coenzymes. The acetyl group combines with oxaloacetate to form citrate, which undergoes successive transformations to isocitrate, 2-oxoglutarate, succinyl-CoA, succinate, fumarate, malate, and oxaloacetate again, thus completing the cycle. In eukaryotes the tricarboxylic acid is confined to the mitochondria. See also glyoxylate cycle.

Chain A,D   (MDH_CHLAA | P80040)
molecular function
    GO:0030060    L-malate dehydrogenase activity    Catalysis of the reaction: (S)-malate + NAD+ = oxaloacetate + NADH + H+.
    GO:0003824    catalytic activity    Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
    GO:0016491    oxidoreductase activity    Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
    GO:0016616    oxidoreductase activity, acting on the CH-OH group of donors, NAD or NADP as acceptor    Catalysis of an oxidation-reduction (redox) reaction in which a CH-OH group acts as a hydrogen or electron donor and reduces NAD+ or NADP.
biological process
    GO:0005975    carbohydrate metabolic process    The chemical reactions and pathways involving carbohydrates, any of a group of organic compounds based of the general formula Cx(H2O)y. Includes the formation of carbohydrate derivatives by the addition of a carbohydrate residue to another molecule.
    GO:0019752    carboxylic acid metabolic process    The chemical reactions and pathways involving carboxylic acids, any organic acid containing one or more carboxyl (COOH) groups or anions (COO-).
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
    GO:0006099    tricarboxylic acid cycle    A nearly universal metabolic pathway in which the acetyl group of acetyl coenzyme A is effectively oxidized to two CO2 and four pairs of electrons are transferred to coenzymes. The acetyl group combines with oxaloacetate to form citrate, which undergoes successive transformations to isocitrate, 2-oxoglutarate, succinyl-CoA, succinate, fumarate, malate, and oxaloacetate again, thus completing the cycle. In eukaryotes the tricarboxylic acid is confined to the mitochondria. See also glyoxylate cycle.

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  MDH_CHLAA | P80040
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  MDH_CHLSY | B9LLP6
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  1.1.1.37
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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        MDH_CHLAA | P80040: 1guy 1ur5 1uxg 1uxh 1uxi 1uxj 1uxk

(-) Related Entries Specified in the PDB File

4bgu 1.50 A RESOLUTION STRUCTURE OF THE MALATE DEHYDROGENASE FROM HALOFERAX VOLCANII
4bgv 1.8 A RESOLUTION STRUCTURE OF THE MALATE DEHYDROGENASE FROM PICROPHILUS TORRIDUS IN ITS APO FORM