About Gene List

PF3D7_1126000 (ThrRS)

Genome location: Pf3D7_11_v3:1,013,901..1,017,911(-)

Genome classification: Core

Function and Localization

Product Description: threonine--tRNA ligase

SignalP Peptide: MKKIIMVIFFLLSKICKNNA

# Transmembrane Domains: 0

EC Numbers: 6.1.1.3 (Threonine--tRNA ligase)

Curated GO (PlasmoDB):

Type GO Term Name
Component GO:0020011 apicoplast
Component GO:0005829 cytosol
Component GO:0005739 mitochondrion
Component GO:0005634 nucleus
Function GO:0005524 ATP binding
Function GO:0004812 aminoacyl-tRNA ligase activity
Function GO:0004829 threonine-tRNA ligase activity
Process GO:0042493 response to drug
Process GO:0009410 response to xenobiotic stimulus
Process GO:0006418 tRNA aminoacylation for protein translation
Process GO:0006435 threonyl-tRNA aminoacylation

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 0.71 0.67
Trophozoite expressed 0.96 0.50
Schizont expressed 0.31 0.80
Gametocyte expressed 0.55 0.70

More info:

Resistome Mutations

Old (Pf3D7v3) Gene ID: PF3D7_1126000

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: 0.119 | MFS: -2.949 | #Insertions: 0

PlasmoGEM Phenotype: Essential (Pb ortholog: PBANKA_0922300)

  • Relative Growth Rate: 0.08 ± 0.11
  • Confidence: 5.88

RMgmDB ABS Phenotype: N/A

More info: PhenoPlasm Link

Binding Evidence

AlphaFill Uniprot ID: Q8IIA4

"Best" AlphaFill ligand hit: SSA (5'-o-(n-(l-seryl)-sulfamoyl)adenosine, Local RMSD=0.32) with 4EO4 (Global RMSD=1.35)

BRENDA EC Inhibitors:

EC # Name EC Inhibitors
6.1.1.3 threonine-tRNA ligase borrelidinthreonyl-AMPZINC27215482ZINC67910544ZINC72320615ZINC72320626ZINC35270978ZINC35458951hydrogen peroxideoperator mRNA domain 2tubercidin 5'-triphosphatePurineriboside 5'-triphosphate...

Orthology to BindingDB Entries:

UniProt Protein Name Species Homology Source BindingDB Ligands
P26639 Threonine--tRNA ligase 1, cytoplasmic Homo sapiens HOGENOM, OrthoDB CHEMBL1163068CHEMBL2316960CHEMBL2311929CHEMBL2311928...
Q8ZDW5 Threonine--tRNA ligase Yersinia pestis OMA, OrthoMCL CHEMBL2311917CHEMBL2316961CHEMBL2316960CHEMBL2311929...

Orthology Information

Ortholog Group (OrthoMCL): OG6_100294

Most Similar Human Ortholog: H0YKB9

TM-align score: 0.92 | RMSD: 1.40

Seq Identity: 0.53 | Length: 148 / 1013

All Human Orthologs (OrthoMCL):

Gene ID Description
ENSG00000113407 threonyl-tRNA synthetase 1
ENSG00000143374 threonyl-tRNA synthetase 2, mitochondrial
ENSG00000185418 threonyl-tRNA synthetase 3

Protein Information

Protein Length: 1013 | Molecular Weight (kDa): 119.546

UniProt ID(s): Q8IIA4

PDB ID(s): None

Isoelectric Point: 9.05

Protein Domain Annotations:

Source Family ID Description
InterPro IPR002314 Aminoacyl-tRNA synthetase, class II (G/ P/ S/T)
InterPro IPR002320 Threonine-tRNA ligase, class IIa
InterPro IPR004154 Anticodon-binding
InterPro IPR012947 Threonyl/alanyl tRNA synthetase, SAD
InterPro IPR018163 Threonyl/alanyl tRNA synthetase, class II-like, putative editing domain superfamily
InterPro IPR033728 Threonine-tRNA ligase catalytic core domain
PFam PF00587 Aminoacyl-tRNA synthetase, class II (G/ P/ S/T)
PFam PF03129 Anticodon-binding
PFam PF07973 Threonyl/alanyl tRNA synthetase, SAD
Superfamily SSF52954 Threonyl/alanyl tRNA synthetase, class II-like, putative editing domain superfamily
Superfamily SSF55186
Superfamily SSF55681

Genetic Variation

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

Homozygous genotype calls only

variant type common rare doubleton singleton
synonymous 8 36 30 61
disruptive 48 118 57 124
missense 25 85 43 104

Any inclusion in genotype call

variant type common rare doubleton singleton
synonymous 14 86 44 77
disruptive 76 231 90 200
missense 37 169 74 138

PlasmoDB Total SNPs: 180

Non-coding: 87 | Synonymous: 38 | Nonsynonymous: 55 | Stop Codon: 0

Associated Publications

PMID Title Authors DOI/Link
12368864 Genome sequence of the human malaria parasite Plasmodium falciparum. Gardner MJ, Hall N, ..., Barrell B 10.1038/nature01097
22222968 Dual targeting of aminoacyl-tRNA synthetases to the apicoplast and cytosol inPlasmodium falciparum. Jackson KE, Pham JS, ..., Ralph SA 10.1016/j.ijpara.2011.11.008
25489076 Analogs of natural aminoacyl-tRNA synthetase inhibitors clear malaria in vivo. Novoa EM, Camacho N, ..., Ribas de Pouplana L 10.1073/pnas.1405994111
30212465 Integrative proteomics and bioinformatic prediction enable a high-confidenceapicoplast proteome in malaria parasites. Boucher MJ, Ghosh S, ..., Yeh E 10.1371/journal.pbio.2005895
37335076 Synthesis and evaluation of an agrocin 84 toxic moiety (TM84) analogue as amalarial threonyl tRNA synthetase inhibitor Buitrago JAR, Leitis G, ..., Jirgensons A 10.1039/d3ob00670k