About Gene List

PF3D7_1227200 (K1)

Genome location: Pf3D7_12_v3:1,097,031..1,105,221(+)

Genome classification: Core

Function and Localization

Product Description: potassium channel K1

SignalP Peptide: N/A

# Transmembrane Domains: 8

EC Numbers: None

Curated GO (PlasmoDB):

Type GO Term Name
Component GO:0020002 host cell plasma membrane
Component GO:0016021 integral component of membrane
Function GO:0005267 potassium channel activity
Function GO:0005249 voltage-gated potassium channel activity
Process GO:0071805 potassium ion transmembrane transport

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

Stage LR class MCA mean MCA prop. zeros
Sporozoite possibly expressed N/A N/A
Ring possibly expressed 0.32 0.85
Trophozoite expressed 0.77 0.59
Schizont possibly expressed 0.49 0.70
Gametocyte possibly expressed 0.50 0.72

More info:

Resistome Mutations

Old (Pf3D7v3) Gene ID: PF3D7_1227200

Resistome Missense Mutations: D1330Y

Resistome Compounds with Missense Mutations: MMV085203

Resistome # Samples with Disruptive Mutations: 1 (1 missense, 1 "interesting" missense)

Essentiality (ABS)

Zhang Phenotype: Non - Mutable in CDS

MIS: 0.125 | MFS: -2.944 | #Insertions: 0

PlasmoGEM Phenotype: Dispensable (Pb ortholog: PBANKA_1442000)

  • Relative Growth Rate: 0.90 ± 0.20
  • Confidence: 4.58

RMgmDB ABS Phenotype: Different from wild type (Pb ortholog: PBANKA_1442000)

Modification: Disrupted | RMgm-3952

More info: PhenoPlasm Link

Binding Evidence

AlphaFill Uniprot ID: Q8I5E6

"Best" AlphaFill ligand hit: GTP (guanosine-5'-triphosphate, Local RMSD=0.03) with 7P9J (Global RMSD=17.47)

No associated EC numbers

No evidence of orthology to BindingDB entries

Orthology Information

Ortholog Group (OrthoMCL): OG6_122873

No human ortholog(s)

Genetic Variation

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

Homozygous genotype calls only

variant type common rare doubleton singleton
synonymous 11 81 59 139
disruptive 60 176 102 236
missense 40 141 83 185

Any inclusion in genotype call

variant type common rare doubleton singleton
synonymous 28 190 85 152
disruptive 128 381 213 475
missense 71 280 176 302

PlasmoDB Total SNPs: 412

Non-coding: 243 | Synonymous: 107 | Nonsynonymous: 62 | Stop Codon: 0

Protein Information

Protein Length: 1966 | Molecular Weight (kDa): 232.187

UniProt ID(s): Q8I5E6

PDB ID(s): None

Isoelectric Point: 9.75

Protein Domain Annotations:

Source Family ID Description
InterPro IPR013099 Potassium channel domain
InterPro IPR028325 Voltage-gated potassium channel
PFam PF07885 Potassium channel domain
Superfamily SSF81324 N/A

Associated Publications

PMID Title Authors DOI/Link
11152613 Predicting transmembrane protein topology with a hidden Markov model: applicationto complete genomes. Krogh A, Larsson B, von Heijne G, Sonnhammer EL 10.1006/jmbi.2000.4315
12368864 Genome sequence of the human malaria parasite Plasmodium falciparum. Gardner MJ, Hall N, ..., Barrell B 10.1038/nature01097
16267556 A protein interaction network of the malaria parasite Plasmodium falciparum. LaCount DJ, Vignali M, ..., Hughes RE 10.1038/nature04104
18218136 Characterization of two putative potassium channels in Plasmodium falciparum. Waller KL, McBride SM, Kim K, McDonald TV 10.1186/1475-2875-7-19
32957994 Purification and initial characterization of Plasmodium falciparum K(+) channels,PfKch1 and PfKch2 produced in Saccharomyces cerevisiae. Molbaek K, Tejada M, ..., Pedersen PA 10.1186/s12934-020-01437-7