About Gene List

PF3D7_0103700 (PSTK)

Genome location: Pf3D7_01_v3:166,497..168,687(+)

Genome classification: Core

Function and Localization

Product Description: L-seryl-tRNA(Sec) kinase, putative

SignalP Peptide: N/A

# Transmembrane Domains: 0

EC Numbers: 2.7.1.164 (O-phosphoseryl-tRNA(Sec) kinase)

Curated GO (PlasmoDB):

Type GO Term Name
Function GO:0016301 kinase activity
Function GO:0000049 tRNA binding

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 0.13 0.94
Trophozoite expressed 0.24 0.85
Schizont expressed 0.07 0.95
Gametocyte expressed 0.48 0.73

More info:

Resistome Mutations

Old (Pf3D7v3) Gene ID: PF3D7_0103700

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: Mutable in CDS

MIS: 1 | MFS: -2.284 | #Insertions: 3

PlasmoGEM Phenotype: N/A

RMgmDB ABS Phenotype: N/A

More info: PhenoPlasm Link

Binding Evidence

AlphaFill Uniprot ID: Q8I2A3

"Best" AlphaFill ligand hit: HEX (hexane, Local RMSD=1.30) with 6JO0 (Global RMSD=21.55)

BRENDA EC Inhibitors:

EC # Name EC Inhibitors
2.7.1.164 O-phosphoseryl-tRNASec kinase tRNASec

No evidence of orthology to BindingDB entries

Orthology Information

Ortholog Group (OrthoMCL): OG6_105960

Most Similar Human Ortholog: Q8IV42

TM-align score: 0.58 | RMSD: 4.14

Seq Identity: 0.20 | Length: 252 / 535

All Human Orthologs (OrthoMCL):

Gene ID Description
ENSG00000179988 phosphoseryl-tRNA kinase

Genetic Variation

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

Homozygous genotype calls only

variant type common rare doubleton singleton
synonymous 6 26 15 36
disruptive 19 81 47 76
missense 19 78 42 65

Any inclusion in genotype call

variant type common rare doubleton singleton
synonymous 11 52 35 39
disruptive 46 171 74 117
missense 36 138 61 74

PlasmoDB Total SNPs: 144

Non-coding: 102 | Synonymous: 20 | Nonsynonymous: 22 | Stop Codon: 0

Protein Information

Protein Length: 535 | Molecular Weight (kDa): 65.607

UniProt ID(s): Q8I2A3

PDB ID(s): None

Isoelectric Point: 10.72

Protein Domain Annotations:

Source Family ID Description
InterPro N/A N/A
PFam N/A N/A
Superfamily N/A N/A

Associated Publications

PMID Title Authors DOI/Link
12368867 Sequence of Plasmodium falciparum chromosomes 1, 3-9 and 13. Hall N, Pain A, ..., Barrell BG 10.1038/nature01095
26586914 Leishmania donovani Encodes a Functional Selenocysteinyl-tRNA Synthase Manhas R, Gowri VS, Madhubala R 10.1074/jbc.M115.695007
32298370 Proteomic analysis of infected primary human leucocytes revealed PSTK aspotential treatment-monitoring marker for active and latent tuberculosis Kaewseekhao B, Roytrakul S, ..., Faksri K 10.1371/journal.pone.0231834
35687481 Phosphatidylserine and Phosphatidylethanolamine Asymmetry Have a Negligible Effect on the Global Structure, Dynamics, and Interactions of the KRAS Lipid Anchor Araya MK, Gorfe AA 10.1021/acs.jpcb.2c01253
32236652 Fungal Kti12 proteins display unusual linker regions and unique ATPase p-loops Krutyholowa R, Reinhardt-Tews A, ..., Glatt S 10.1007/s00294-020-01070-2
28419530 Differential expression profile analysis of PSTK-regulated mRNAs in podocytes Zheng D, Zhao Y, ..., Xie K 10.1002/jcb.26076
33417976 Same but different - Molecular comparison of human KTI12 and PSTK Smejda M, Kadziolka D, ..., Glatt S 10.1016/j.bbamcr.2020.118945
30916349 Kti12, a PSTK-like tRNA dependent ATPase essential for tRNA modification byElongator Krutyholowa R, Hammermeister A, ..., Glatt S 10.1093/nar/gkz190
33017394 Trypanosomatid selenophosphate synthetase structure, function and interaction with selenocysteine lyase da Silva MTA, Silva IRE, ..., Thiemann OH 10.1371/journal.pntd.0008091
33224150 Hepatic-Specific Decrease in the Expression of Selenoenzymes and Factors Essential for Selenium Processing After Endotoxemia Sherlock LG, Sjostrom K, ..., Wright CJ 10.3389/fimmu.2020.595282