Protein: ATP synthase small subunit 6-B, mitochondrial (AtMtATP6) (MtATP6) (ATP synthase 6 kDa subunit, mitochondrial) (P0DO45)
Organism: Arabidopsis thaliana (Mouse-ear cress)
Function: Mitochondrial membrane ATP synthase (F(1)F(0) ATP synthase or Complex V) produces ATP from ADP in the presence of a proton gradient across the membrane which is generated by electron transport complexes of the respiratory chain (Probable). F-type ATPases consist of two structural domains, F(1) - containing the extramembraneous catalytic core and F(0) - containing the membrane proton channel, linked together by a central stalk and a peripheral stalk (Probable). During catalysis, ATP synthesis in the catalytic domain of F(1) is coupled via a rotary mechanism of the central stalk subunits to proton translocation (Probable). Part of the complex F(0) domain (Probable). Confers tolerance to several abiotic stresses (e.g. salt, mannitol, drought, oxidative and cold stresses), probably by providing additional energy needed for cell homeostasis.
Subcellular location: Mitochondrion inner membrane {ECO:0000250|UniProtKB:P0DO44}; Single-pass membrane protein {ECO:0000255}.
Sequence: MRLFDPWPVFFKREWKRCWPFLTGFAVTGVLITKLTAGLTEEDAKNSKFVQQHRR
InterPro domains: - IPR052867: Mitochondrial ATP Synthase Subunit 6 (family) [1-55]
Gene Ontology annotations:
Molecular Function (MF): GO:0003674 (molecular function), GO:0005488 (binding), GO:0005515 (protein binding)
Biological Process (BP): GO:0008150 (biological process), GO:0050896 (response to stimulus), GO:0009628 (response to abiotic stimulus), GO:0006950 (response to stress), GO:0042221 (response to chemical), GO:0001101 (response to acid chemical), GO:0009266 (response to temperature stimulus), GO:1901700 (response to oxygen-containing compound), GO:0009414 (response to water deprivation), GO:0010035 (response to inorganic substance), GO:0009415 (response to water), GO:0006979 (response to oxidative stress), GO:0009409 (response to cold), GO:0010033 (response to organic substance), GO:1902074 (response to salt), GO:0009743 (response to carbohydrate), GO:0042542 (response to hydrogen peroxide), GO:0000302 (response to reactive oxygen species), GO:0034285 (response to disaccharide), GO:0010555 (response to mannitol), GO:0009744 (response to sucrose)
Cellular Component (CC): GO:0005575 (cellular component), GO:0032991 (protein-containing complex), GO:0110165 (cellular anatomical entity), GO:0005622 (intracellular anatomical structure), GO:0043226 (organelle), GO:0098798 (mitochondrial protein-containing complex), GO:0016020 (membrane), GO:0070469 (respirasome), GO:0098796 (membrane protein complex), GO:1990351 (transporter complex), GO:0031975 (envelope), GO:1902494 (catalytic complex), GO:0005737 (cytoplasm), GO:0031090 (organelle membrane), GO:0031967 (organelle envelope), GO:0005746 (mitochondrial respirasome), GO:0098803 (respiratory chain complex), GO:0043229 (intracellular organelle), GO:0070069 (cytochrome complex), GO:0098800 (inner mitochondrial membrane protein complex), GO:0005739 (mitochondrion), GO:1902495 (transmembrane transporter complex), GO:1990204 (oxidoreductase complex), GO:0043227 (membrane-bounded organelle), GO:0005740 (mitochondrial envelope), GO:0043231 (intracellular membrane-bounded organelle), GO:0045275 (respiratory chain complex III), GO:0019866 (organelle inner membrane), GO:0031966 (mitochondrial membrane), GO:0005750 (mitochondrial respiratory chain complex III), GO:0005743 (mitochondrial inner membrane)