About Gene List

PF3D7_1466100 (PPKL)

Genome location: Pf3D7_14_v3:2,689,986..2,693,898(+)

Genome classification: Core

Function and Localization

Product Description: protein phosphatase containing kelch-like domains

SignalP Peptide: N/A

# Transmembrane Domains: 0

EC Numbers: 3.1.3.16 (Protein-serine/threonine phosphatase)

Curated GO (PlasmoDB):

Type GO Term Name
Component GO:0005737 cytoplasm
Component GO:0005634 nucleus
Component GO:0008287 protein serine/threonine phosphatase complex
Function GO:0004722 protein serine/threonine phosphatase activity
Process GO:0006470 protein dephosphorylation

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 not expressed 0.02 0.99
Trophozoite expressed 0.19 0.87
Schizont expressed 0.15 0.89
Gametocyte expressed 0.11 0.93

More info:

Resistome Mutations

Old (Pf3D7v3) Gene ID: PF3D7_1466100

Resistome Missense Mutations: None

Resistome Compounds with Missense Mutations: None

Resistome # Samples with Disruptive Mutations: 0 (0 missense, 0 "interesting" missense)

Essentiality (ABS)

Zhang Phenotype: Non - Mutable in CDS

MIS: 0.302 | MFS: -2.61 | #Insertions: 0

PlasmoGEM Phenotype: Slow (Pb ortholog: PBANKA_1329500)

  • Relative Growth Rate: 0.72 ± 0.14
  • Confidence: 5.38

RMgmDB ABS Phenotype: Different from wild type (Pb ortholog: PBANKA_1329500)

Modification: Disrupted | RMgm-3546

More info: PhenoPlasm Link

Binding Evidence

AlphaFill Uniprot ID: Q8IKH5

"Best" AlphaFill ligand hit: NHE (2-[n-cyclohexylamino]ethane sulfonic acid, Local RMSD=0.25) with 6GHM (Global RMSD=7.78)

BRENDA EC Inhibitors:

EC # Name EC Inhibitors
3.1.3.16 protein-serine/threonine phosphatase ATPADPUDPAMPGTPUTPUMPNaFEDTAEGTAcAMPNADPH...

No evidence of orthology to BindingDB entries

Orthology Information

Ortholog Group (OrthoMCL): OG6_106601

No human ortholog(s)

Genetic Variation

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

Homozygous genotype calls only

variant type common rare doubleton singleton
synonymous 17 54 30 55
disruptive 14 50 21 65
missense 7 41 19 55

Any inclusion in genotype call

variant type common rare doubleton singleton
synonymous 29 103 25 39
disruptive 25 94 55 115
missense 13 77 45 78

PlasmoDB Total SNPs: 121

Non-coding: 70 | Synonymous: 32 | Nonsynonymous: 16 | Stop Codon: 3

Protein Information

Protein Length: 889 | Molecular Weight (kDa): 100.775

UniProt ID(s): O96914, Q8IKH5

PDB ID(s): None

Isoelectric Point: 7.26

Protein Domain Annotations:

Source Family ID Description
InterPro IPR004843 Calcineurin-like phosphoesterase domain, ApaH type
InterPro IPR006186 Serine/threonine-specific protein phosphatase/bis(5-nucleosyl)-tetraphosphatase
InterPro IPR006652 Kelch repeat type 1
InterPro IPR011043 Galactose oxidase/kelch, beta-propeller
InterPro IPR011498 Kelch repeat type 2
InterPro IPR012391 Serine/threonine protein phosphatase, BSU1
InterPro IPR015915 Kelch-type beta propeller
InterPro IPR041758 Phosphatase BSL, C-terminal metallophosphatase domain
PFam PF00149 Calcineurin-like phosphoesterase domain, ApaH type
PFam PF01344 Kelch repeat type 1
PFam PF07646 Kelch repeat type 2
PFam PF13418
Superfamily SSF117281 Kelch-type beta propeller
Superfamily SSF50965 Galactose oxidase/kelch, beta-propeller
Superfamily SSF56300

Associated Publications

PMID Title Authors DOI/Link
9803420 A putative protein serine/threonine phosphatase from Plasmodium falciparumcontains a large N-terminal extension and five unique inserts in the catalyticdomain. Li JL, Baker DA 10.1016/s0166-6851(98)00106-6
12368864 Genome sequence of the human malaria parasite Plasmodium falciparum. Gardner MJ, Hall N, ..., Barrell B 10.1038/nature01097
22957089 A unique Kelch domain phosphatase in Plasmodium regulates ookinete morphology,motility and invasion. Philip N, Vaikkinen HJ, Tetley L, Waters AP 10.1371/journal.pone.0044617
23028336 A unique protein phosphatase with kelch-like domains (PPKL) in Plasmodiummodulates ookinete differentiation, motility and invasion. Guttery DS, Poulin B, ..., Tewari R 10.1371/journal.ppat.1002948
37398039 The protein phosphatase PPKL is a key regulator of daughter parasite development in Toxoplasma gondii Yang C, Doud EH, Sampson E, Arrizabalaga G 10.1101/2023.06.13.544803
37877735 The protein phosphatase PPKL is a key regulator of daughter parasite developmentin Toxoplasma gondii Yang C, Doud EH, Sampson E, Arrizabalaga G 10.1128/mbio.02254-23
24492333 Revisiting the evolutionary history and roles of protein phosphatases with Kelch-like domains in plants Maselli GA, Slamovits CH, ..., Mora-Garcia S 10.1104/pp.113.233627
12034355 Protein Ser/Thr phosphatases with kelch-like repeat domains Kutuzov MA, Andreeva AV 10.1016/s0898-6568(02)00018-9