About Gene List

PF3D7_1311900 (vapA)

Genome location: Pf3D7_13_v3:506,640..510,354(+)

Genome classification: Core

Function and Localization

Product Description: V-type proton ATPase catalytic subunit A

SignalP Peptide: N/A

# Transmembrane Domains: 0

EC Numbers: 3.6.3.14 (Transferred entry: 7.1.2.2);7.1.2.2 (H(+)-transporting two-sector ATPase)

Curated GO (PlasmoDB):

Type GO Term Name
Component GO:0020020 food vacuole
Component GO:0005886 plasma membrane
Component GO:0005774 vacuolar membrane
Component GO:0000221 vacuolar proton-transporting V-type ATPase, V1 domain
Function GO:0046961 proton-transporting ATPase activity, rotational mechanism
Process GO:1902600 proton transmembrane transport
Process GO:0007035 vacuolar acidification

Expression by stage (LR - Le Roch et al., and MCA - Malaria Cell Atlas):

Stage LR class MCA mean MCA prop. zeros
Sporozoite expressed N/A N/A
Ring expressed 0.22 0.89
Trophozoite expressed 0.50 0.70
Schizont expressed 0.29 0.80
Gametocyte expressed 0.35 0.79

More info:

Resistome Mutations

Old (Pf3D7v3) Gene ID: PF3D7_1311900

Resistome Missense Mutations: Q225K, R353K

Resistome Compounds with Missense Mutations: SQ109

Resistome # Samples with Disruptive Mutations: 4 (4 missense, 4 "interesting" missense)

Essentiality (ABS)

Zhang Phenotype: Non - Mutable in CDS

MIS: 0.93 | MFS: -2.245 | #Insertions: 0

PlasmoGEM Phenotype: Essential (Pb ortholog: PBANKA_1410400)

  • Relative Growth Rate: 0.06 ± 0.05
  • Confidence: 7.31

RMgmDB ABS Phenotype: N/A

More info: PhenoPlasm Link

Binding Evidence

AlphaFill Uniprot ID: Q76NM6

"Best" AlphaFill ligand hit: QUE (quercetin, Local RMSD=0.02) with 2JJ2 (Global RMSD=4.72)

BRENDA EC Inhibitors:

EC # Name EC Inhibitors
3.6.3.14 H+-transporting two-sector ATPase No BRENDA inhibitors
7.1.2.2 H+-transporting two-sector ATPase BRENDA SOAP query unsuccessful

No evidence of orthology to BindingDB entries

Orthology Information

Ortholog Group (OrthoMCL): OG6_100902

Most Similar Human Ortholog: C9JA17

TM-align score: 0.99 | RMSD: 0.59

Seq Identity: 0.54 | Length: 184 / 611

All Human Orthologs (OrthoMCL):

Gene ID Description
ENSG00000114573 ATPase H+ transporting V1 subunit A

Genetic Variation

MalariaGEN Pf7 (worldwide samples) # unique SNV/indels:

Homozygous genotype calls only

variant type common rare doubleton singleton
synonymous 3 42 28 52
disruptive 1 9 6 32
missense 1 9 6 26

Any inclusion in genotype call

variant type common rare doubleton singleton
synonymous 16 112 34 28
disruptive 2 50 44 130
missense 1 35 30 79

PlasmoDB Total SNPs: 119

Non-coding: 103 | Synonymous: 12 | Nonsynonymous: 2 | Stop Codon: 2

Protein Information

Protein Length: 611 | Molecular Weight (kDa): 68.576

UniProt ID(s): Q03498, Q76NM6

PDB ID(s): None

Isoelectric Point: 5.36

Protein Domain Annotations:

Source Family ID Description
InterPro IPR000194 ATPase, F1/V1/A1 complex, alpha/beta subunit, nucleotide-binding domain
InterPro IPR004100 ATPase, F1/V1/A1 complex, alpha/beta subunit, N-terminal domain
InterPro IPR005725 ATPase, V1 complex, subunit A
InterPro IPR020003 ATPase, alpha/beta subunit, nucleotide-binding domain, active site
InterPro IPR022878 V-type ATP synthase catalytic alpha chain
InterPro IPR027417 P-loop containing nucleoside triphosphate hydrolase
InterPro IPR031686 ATPsynthase alpha/beta subunit, N-terminal extension
InterPro IPR036121 ATPase, F1/V1/A1 complex, alpha/beta subunit, N-terminal domain superfamily
PFam PF00006 ATPase, F1/V1/A1 complex, alpha/beta subunit, nucleotide-binding domain
PFam PF02874 ATPase, F1/V1/A1 complex, alpha/beta subunit, N-terminal domain
PFam PF16886 ATPsynthase alpha/beta subunit, N-terminal extension
Superfamily SSF47917 ATPase, F1/V1/A1 complex, alpha/beta subunit, N-terminal domain superfamily
Superfamily SSF50615 P-loop containing nucleoside triphosphate hydrolase
Superfamily SSF52540

Associated Publications

PMID Title Authors DOI/Link
10915784 Vacuolar H(+)-ATPase localized in plasma membranes of malaria parasite cells,Plasmodium falciparum, is involved in regional acidification of parasitizederythrocytes. Hayashi M, Yamada H, ..., Moriyama Y 10.1074/jbc.M003323200
12368864 Genome sequence of the human malaria parasite Plasmodium falciparum. Gardner MJ, Hall N, ..., Barrell B 10.1038/nature01097
12368867 Sequence of Plasmodium falciparum chromosomes 1, 3-9 and 13. Hall N, Pain A, ..., Barrell BG 10.1038/nature01095
17653272 Rapid identification of malaria vaccine candidates based on alpha-helical coiledcoil protein motif. Villard V, Agak GW, ..., Corradin G 10.1371/journal.pone.0000645
21136929 Food vacuole proteome of the malarial parasite Plasmodium falciparum. Lamarque M, Tastet C, ..., Dubremetz JF 10.1002/prca.200700112