Q7XPY2

SS
Gene name
Os04g0656100 (LOC_Os04g56160, OSJNBa0071I13.11)
Protein name
Plasma membrane ATPase
Names
EC 7.1.2.1 , Proton pump
Species
Oryza sativa subsp. japonica (Rice)
KEGG Pathway
osa:4337257
EC number
7.1.2.1: Hydron translocation linked to the hydrolysis of a nucleoside triphosphate
Protein Class

Descriptions

The plasma membrane H+-ATPase belongs to the superfamily of P-type ATPases. The H+-ATPase is responsible for the ATP-fuelled ejection of protons from the cell and is an important component in the generation of the trans-membrane H+ gradient in plant cells. The H+-ATPase AHA2 is controlled by an autoinhibitory C-terminal regulatory domain and activated by 14-3-3 proteins which bind to the part of the enzyme. In two regions of the C-terminus, alteration of the residues leads to increased pump activity. One region stretches from K863 to L885 and includes two residues (Q879 and R880) that are conserved between plant and fungal H+-ATPases. The other region, incorporating S904 to L919, is situated in an extension of the C-terminus unique to plant H+-ATPases.

Autoinhibitory domains (AIDs)

863-885 (Autoinhibitory domain I) SS

Target domain

309-537 (ATPase domain)

Relief mechanism

Partner binding

Assay

906-921 (Autoinhibitory domain II) SS

Target domain

309-537 (ATPase domain)

Relief mechanism

Partner binding

Assay

Accessory elements

No accessory elements

References

Autoinhibited structure

Activated structure

1 structures for Q7XPY2

Entry ID Method Resolution Chain Position Source
AF-Q7XPY2-F1 Predicted AlphaFoldDB

No variants for Q7XPY2

Variant ID(s) Position Change Description Diseaes Association Provenance
No variants for Q7XPY2

No associated diseases with Q7XPY2

3 regional properties for Q7XPY2

Type Name Position InterPro Accession
domain Cation-transporting P-type ATPase, N-terminal 13 - 85 IPR004014
ptm P-type ATPase, phosphorylation site 329 - 335 IPR018303
domain P-type ATPase, haloacid dehalogenase domain 309 - 638 IPR044492

Functions

Description
EC Number 7.1.2.1 Hydron translocation linked to the hydrolysis of a nucleoside triphosphate
Subcellular Localization
  • Cell membrane; Multi-pass membrane protein
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

1 GO annotations of cellular component

Name Definition
plasma membrane The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

4 GO annotations of molecular function

Name Definition
ATP binding Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
ATP hydrolysis activity Catalysis of the reaction
metal ion binding Binding to a metal ion.
P-type proton-exporting transporter activity Enables the transfer of protons from one side of a membrane to the other according to the reaction

3 GO annotations of biological process

Name Definition
proton export across plasma membrane The directed movement of hydrogen ions (protons) from inside a cell, across the plasma membrane and into the extracellular region.
proton transmembrane transport The directed movement of a proton across a membrane.
regulation of intracellular pH Any process that modulates the internal pH of a cell, measured by the concentration of the hydrogen ion.

13 homologous proteins in AiPD

UniProt AC Gene Name Protein Name Species Evidence Code
P83970 ha1 Plasma membrane ATPase Triticum aestivum (Wheat) SS
Q43128 AHA10 ATPase 10, plasma membrane-type Arabidopsis thaliana (Mouse-ear cress) SS
Q42556 AHA9 ATPase 9, plasma membrane-type Arabidopsis thaliana (Mouse-ear cress) SS
Q9SH76 AHA6 ATPase 6, plasma membrane-type Arabidopsis thaliana (Mouse-ear cress) SS
Q9SJB3 AHA5 ATPase 5, plasma membrane-type Arabidopsis thaliana (Mouse-ear cress) SS
Q9M2A0 AHA8 ATPase 8, plasma membrane-type Arabidopsis thaliana (Mouse-ear cress) SS
Q9SU58 AHA4 ATPase 4, plasma membrane-type Arabidopsis thaliana (Mouse-ear cress) SS
Q9LY32 AHA7 ATPase 7, plasma membrane-type Arabidopsis thaliana (Mouse-ear cress) SS
Q9LV11 AHA11 ATPase 11, plasma membrane-type Arabidopsis thaliana (Mouse-ear cress) SS
P20431 AHA3 ATPase 3, plasma membrane-type Arabidopsis thaliana (Mouse-ear cress) SS
P20649 AHA1 ATPase 1, plasma membrane-type Arabidopsis thaliana (Mouse-ear cress) SS
P19456 AHA2 ATPase 2, plasma membrane-type Arabidopsis thaliana (Mouse-ear cress) EV
P22180 LHA1 Plasma membrane ATPase 1 Solanum lycopersicum (Tomato) (Lycopersicon esculentum) SS
10 20 30 40 50 60
MGGLEEIKNE AVDLENIPIE EVFEQLKCTR EGLSSEEGNR RIEMFGPNKL EEKKESKILK
70 80 90 100 110 120
FLGFMWNPLS WVMEMAAIMA IALANGGGKP PDWEDFVGII VLLVINSTIS FIEENNAGNA
130 140 150 160 170 180
AAALMANLAP KTKVLRDGRW GEQEAAILVP GDIISIKLGD IVPADARLLE GDPLKIDQSA
190 200 210 220 230 240
LTGESLPVTK NPGDEVFSGS TCKQGEIEAV VIATGVHTFF GKAAHLVDST NQVGHFQTVL
250 260 270 280 290 300
TAIGNFCICS IAVGIVIEII VMFPIQHRAY RSGIENLLVL LIGGIPIAMP TVLSVTMAIG
310 320 330 340 350 360
SHKLSQQGAI TKRMTAIEEM AGMDVLCSDK TGTLTLNKLS VDKNLVEVFT KGVDKDHVLL
370 380 390 400 410 420
LAARASRTEN QDAIDAAMVG MLADPKEARA GIREVHFLPF NPVDKRTALT YIDADGNWHR
430 440 450 460 470 480
ASKGAPEQIL TLCNCKEDVK RKVHAVIDKY AERGLRSLAV ARQEVPEKSK ESAGGPWQFV
490 500 510 520 530 540
GLLPLFDPPR HDSAETIRKA LHLGVNVKMI TGDQLAIGKE TGRRLGMGTN MYPSSALLGQ
550 560 570 580 590 600
NKDASLEALP VDELIEKADG FAGVFPEHKY EIVKRLQEKK HIVGMTGDGV NDAPALKKAD
610 620 630 640 650 660
IGIAVADATD AARSASDIVL TEPGLSVIIS AVLTSRCIFQ RMKNYTIYAV SITIRIVLGF
670 680 690 700 710 720
LLIALIWKYD FSPFMVLIIA ILNDGTIMTI SKDRVKPSPL PDSWKLKEIF ATGIVLGSYL
730 740 750 760 770 780
ALMTVIFFWA MHKTDFFTDK FGVRSIRNSE HEMMSALYLQ VSIVSQALIF VTRSRSWSFI
790 800 810 820 830 840
ERPGLLLVTA FMLAQLVATF LAVYANWGFA RIKGIGWGWA GVIWLYSIVF YFPLDIFKFF
850 860 870 880 890 900
IRFVLSGRAW DNLLENKIAF TTKKDYGREE REAQWATAQR TLHGLQPPEV ASNTLFNDKS
910 920 930 940 950
SYRELSEIAE QAKRRAEIAR LRELNTLKGH VESVVKLKGL DIDTIQQNYT V