UniProtKB - Q9ZP06 (MDHM1_ARATH)
Protein
Malate dehydrogenase 1, mitochondrial
Gene
At1g53240
Organism
Arabidopsis thaliana (Mouse-ear cress)
Status
Functioni
Catalyzes a reversible NAD-dependent dehydrogenase reaction involved in central metabolism and redox homeostasis between organelle compartments (Probable). Required for carbon dioxide and energy partitioning in leaves. May limit photorespiration during the dark phase (PubMed:20876337, PubMed:27208265). Its activity is essential to shuttle reductants out from the mitochondria to support the photorespiratory flux (PubMed:26889011). Can convert 2-oxoglutarate to (S)-2-hydroxyglutarate in vitro (PubMed:26203119).1 Publication4 Publications
Catalytic activityi
- EC:1.1.1.371 Publication
Activity regulationi
Negatively regulated by ATP. Not redox-regulated. The formation of intramolecular disulfide bonds does not alter enzymatic activity.1 Publication
Kineticsi
- KM=0.8 mM for malate (at pH 7.5)1 Publication
- KM=0.11 mM for oxaloacetate (at pH 7.5)1 Publication
- KM=0.27 mM for oxaloacetate (at pH 7.4)1 Publication
- KM=0.6 mM for NAD+ (at pH 7.5)1 Publication
- KM=0.23 mM for NADH (at pH 7.5)1 Publication
- KM=41 mM for 2-ketoglutarate (at pH 7.4)1 Publication
- Vmax=0.087 mmol/min/mg enzyme toward malate (at pH 7.5)1 Publication
- Vmax=0.03 mmol/min/mg enzyme toward malate (at pH 7.4)1 Publication
- Vmax=1.2 mmol/min/mg enzyme toward oxaloacetate (at pH 7.5)1 Publication
- Vmax=2.39 mmol/min/mg enzyme toward oxaloacetate (at pH 7.4)1 Publication
- Vmax=79 µmol/min/mg enzyme toward NAD+ (at pH 7.5)1 Publication
- Vmax=2732 µmol/min/mg enzyme toward NADH (at pH 7.5)1 Publication
- Vmax=0.38 mmol/min/mg enzyme toward 2-ketoglutarate (at pH 7.4)1 Publication
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Binding sitei | 62 | NADBy similarity | 1 | |
Binding sitei | 109 | SubstrateBy similarity | 1 | |
Binding sitei | 115 | SubstrateBy similarity | 1 | |
Binding sitei | 122 | NADBy similarity | 1 | |
Binding sitei | 147 | SubstrateBy similarity | 1 | |
Binding sitei | 181 | SubstrateBy similarity | 1 | |
Active sitei | 205 | Proton acceptorBy similarity | 1 | |
Binding sitei | 256 | NADBy similarity | 1 |
Regions
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Nucleotide bindingi | 36 – 42 | NADBy similarity | 7 | |
Nucleotide bindingi | 145 – 147 | NADBy similarity | 3 |
GO - Molecular functioni
- copper ion binding Source: TAIR
- L-malate dehydrogenase activity Source: TAIR
GO - Biological processi
- carbohydrate metabolic process Source: InterPro
- defense response to bacterium Source: TAIR
- malate metabolic process Source: InterPro
- response to cadmium ion Source: TAIR
- response to cold Source: TAIR
- tricarboxylic acid cycle Source: UniProtKB-KW
Keywordsi
Molecular function | Oxidoreductase |
Biological process | Tricarboxylic acid cycle |
Ligand | NAD |
Enzyme and pathway databases
BioCyci | ARA:AT1G53240-MONOMER MetaCyc:AT1G53240-MONOMER |
BRENDAi | 1.1.1.37, 399 |
Names & Taxonomyi
Protein namesi | Recommended name: Malate dehydrogenase 1, mitochondrialCurated (EC:1.1.1.371 Publication)Alternative name(s): Mitochondrial MDH11 Publication Short name: mMDH11 Publication Mitochondrial NAD-dependent malate dehydrogenase 1Curated Short name: mNAD-MDH 1Curated Short name: mtNAD-MDH11 Publication |
Gene namesi | Ordered Locus Names:At1g53240 ORF Names:F12M16.14 |
Organismi | Arabidopsis thaliana (Mouse-ear cress) |
Taxonomic identifieri | 3702 [NCBI] |
Taxonomic lineagei | Eukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliopsida › eudicotyledons › Gunneridae › Pentapetalae › rosids › malvids › Brassicales › Brassicaceae › Camelineae › Arabidopsis |
Proteomesi |
|
Organism-specific databases
Araporti | AT1G53240 |
TAIRi | locus:2009605, AT1G53240 |
Subcellular locationi
Mitochondrion
- Mitochondrion matrix 1 Publication2 Publications
Cell Wall
- cell wall Source: TAIR
Chloroplast
- chloroplast Source: TAIR
Mitochondrion
- mitochondrial matrix Source: UniProtKB-SubCell
- mitochondrion Source: TAIR
Nucleus
- nucleus Source: TAIR
Other locations
- cytoplasm Source: GO_Central
Keywords - Cellular componenti
MitochondrionPathology & Biotechi
Disruption phenotypei
Slight reduction of rosette leaf size and reduction by 50 percents in fresh weight and seed production (PubMed:26889011). The double mutant plants mmdh1 and mmdh2 have decreased germination rate, grow slowly, are small, have increased photorespiration and die before producing seeds (PubMed:20876337).2 Publications
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Transit peptidei | 1 – 22 | Mitochondrion2 PublicationsAdd BLAST | 22 | |
ChainiPRO_0000018622 | 23 – 341 | Malate dehydrogenase 1, mitochondrialAdd BLAST | 319 |
Post-translational modificationi
Forms intramolecular disulfide bonds.1 Publication
Keywords - PTMi
Disulfide bondProteomic databases
PaxDbi | Q9ZP06 |
PRIDEi | Q9ZP06 |
ProteomicsDBi | 238769 |
2D gel databases
SWISS-2DPAGEi | Q9ZP06 |
PTM databases
iPTMneti | Q9ZP06 |
MetOSitei | Q9ZP06 |
Expressioni
Tissue specificityi
Expressed in rosette leaves.1 Publication
Gene expression databases
ExpressionAtlasi | Q9ZP06, baseline and differential |
Genevisiblei | Q9ZP06, AT |
Interactioni
Subunit structurei
Homodimer.
By similarityProtein-protein interaction databases
BioGRIDi | 26982, 2 interactors |
IntActi | Q9ZP06, 1 interactor |
STRINGi | 3702.AT1G53240.1 |
Family & Domainsi
Sequence similaritiesi
Keywords - Domaini
Transit peptidePhylogenomic databases
eggNOGi | KOG1494, Eukaryota |
HOGENOMi | CLU_047181_0_1_1 |
InParanoidi | Q9ZP06 |
OMAi | VECAFVQ |
OrthoDBi | 976445at2759 |
PhylomeDBi | Q9ZP06 |
Family and domain databases
CDDi | cd01337, MDH_glyoxysomal_mitochondrial, 1 hit |
Gene3Di | 3.90.110.10, 1 hit |
InterProi | View protein in InterPro IPR001557, L-lactate/malate_DH IPR022383, Lactate/malate_DH_C IPR001236, Lactate/malate_DH_N IPR015955, Lactate_DH/Glyco_Ohase_4_C IPR001252, Malate_DH_AS IPR010097, Malate_DH_type1 IPR036291, NAD(P)-bd_dom_sf |
Pfami | View protein in Pfam PF02866, Ldh_1_C, 1 hit PF00056, Ldh_1_N, 1 hit |
PIRSFi | PIRSF000102, Lac_mal_DH, 1 hit |
SUPFAMi | SSF51735, SSF51735, 1 hit SSF56327, SSF56327, 1 hit |
TIGRFAMsi | TIGR01772, MDH_euk_gproteo, 1 hit |
PROSITEi | View protein in PROSITE PS00068, MDH, 1 hit |
i Sequence
Sequence statusi: Complete.
: The displayed sequence is further processed into a mature form. Sequence processingi
Q9ZP06-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MFRSMLVRSS ASAKQAVIRR SFSSGSVPER KVAILGAAGG IGQPLALLMK
60 70 80 90 100
LNPLVSSLSL YDIANTPGVA ADVGHINTRS EVVGYMGDDN LAKALEGADL
110 120 130 140 150
VIIPAGVPRK PGMTRDDLFN INAGIVKNLC TAIAKYCPHA LINMISNPVN
160 170 180 190 200
STVPIAAEIF KKAGMYDEKK LFGVTTLDVV RARTFYAGKA NVPVAEVNVP
210 220 230 240 250
VIGGHAGVTI LPLFSQATPQ ANLSSDILTA LTKRTQDGGT EVVEAKAGKG
260 270 280 290 300
SATLSMAYAG ALFADACLKG LNGVPDVIEC SYVQSTITEL PFFASKVRLG
310 320 330 340
KNGVEEVLDL GPLSDFEKEG LEALKPELKS SIEKGVKFAN Q
Sequence cautioni
The sequence AAF69549 differs from that shown. Reason: Erroneous gene model prediction.Curated
Experimental Info
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sequence conflicti | 17 | V → A in AAM64855 (Ref. 5) Curated | 1 |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AJ131205 mRNA Translation: CAA10320.1 AC008007 Genomic DNA Translation: AAF69549.1 Sequence problems. CP002684 Genomic DNA Translation: AEE32910.1 AF324670 mRNA Translation: AAG40021.1 AF339684 mRNA Translation: AAK00366.1 AY062580 mRNA Translation: AAL32658.1 AY128783 mRNA Translation: AAM91183.1 AY087304 mRNA Translation: AAM64855.1 |
PIRi | T51311 |
RefSeqi | NP_564625.1, NM_104202.3 |
Genome annotation databases
EnsemblPlantsi | AT1G53240.1; AT1G53240.1; AT1G53240 |
GeneIDi | 841757 |
Gramenei | AT1G53240.1; AT1G53240.1; AT1G53240 |
KEGGi | ath:AT1G53240 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AJ131205 mRNA Translation: CAA10320.1 AC008007 Genomic DNA Translation: AAF69549.1 Sequence problems. CP002684 Genomic DNA Translation: AEE32910.1 AF324670 mRNA Translation: AAG40021.1 AF339684 mRNA Translation: AAK00366.1 AY062580 mRNA Translation: AAL32658.1 AY128783 mRNA Translation: AAM91183.1 AY087304 mRNA Translation: AAM64855.1 |
PIRi | T51311 |
RefSeqi | NP_564625.1, NM_104202.3 |
3D structure databases
SMRi | Q9ZP06 |
ModBasei | Search... |
Protein-protein interaction databases
BioGRIDi | 26982, 2 interactors |
IntActi | Q9ZP06, 1 interactor |
STRINGi | 3702.AT1G53240.1 |
PTM databases
iPTMneti | Q9ZP06 |
MetOSitei | Q9ZP06 |
2D gel databases
SWISS-2DPAGEi | Q9ZP06 |
Proteomic databases
PaxDbi | Q9ZP06 |
PRIDEi | Q9ZP06 |
ProteomicsDBi | 238769 |
Genome annotation databases
EnsemblPlantsi | AT1G53240.1; AT1G53240.1; AT1G53240 |
GeneIDi | 841757 |
Gramenei | AT1G53240.1; AT1G53240.1; AT1G53240 |
KEGGi | ath:AT1G53240 |
Organism-specific databases
Araporti | AT1G53240 |
TAIRi | locus:2009605, AT1G53240 |
Phylogenomic databases
eggNOGi | KOG1494, Eukaryota |
HOGENOMi | CLU_047181_0_1_1 |
InParanoidi | Q9ZP06 |
OMAi | VECAFVQ |
OrthoDBi | 976445at2759 |
PhylomeDBi | Q9ZP06 |
Enzyme and pathway databases
BioCyci | ARA:AT1G53240-MONOMER MetaCyc:AT1G53240-MONOMER |
BRENDAi | 1.1.1.37, 399 |
Miscellaneous databases
PROi | PR:Q9ZP06 |
Gene expression databases
ExpressionAtlasi | Q9ZP06, baseline and differential |
Genevisiblei | Q9ZP06, AT |
Family and domain databases
CDDi | cd01337, MDH_glyoxysomal_mitochondrial, 1 hit |
Gene3Di | 3.90.110.10, 1 hit |
InterProi | View protein in InterPro IPR001557, L-lactate/malate_DH IPR022383, Lactate/malate_DH_C IPR001236, Lactate/malate_DH_N IPR015955, Lactate_DH/Glyco_Ohase_4_C IPR001252, Malate_DH_AS IPR010097, Malate_DH_type1 IPR036291, NAD(P)-bd_dom_sf |
Pfami | View protein in Pfam PF02866, Ldh_1_C, 1 hit PF00056, Ldh_1_N, 1 hit |
PIRSFi | PIRSF000102, Lac_mal_DH, 1 hit |
SUPFAMi | SSF51735, SSF51735, 1 hit SSF56327, SSF56327, 1 hit |
TIGRFAMsi | TIGR01772, MDH_euk_gproteo, 1 hit |
PROSITEi | View protein in PROSITE PS00068, MDH, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | MDHM1_ARATH | |
Accessioni | Q9ZP06Primary (citable) accession number: Q9ZP06 Secondary accession number(s): Q8LBB9, Q9MAH7 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | December 1, 2000 |
Last sequence update: | May 1, 1999 | |
Last modified: | December 2, 2020 | |
This is version 177 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Plant Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Direct protein sequencing, Reference proteomeDocuments
- Arabidopsis thaliana
Arabidopsis thaliana: entries and gene names - SIMILARITY comments
Index of protein domains and families