About Gene List

PF3D7_1336900 (cTrpRS)

Genome location: Pf3D7_13_v3:1,487,930..1,490,567(-)

Genome classification: Core

Function and Localization

Product Description: tryptophan--tRNA ligase

SignalP Peptide: N/A

# Transmembrane Domains: 0

EC Numbers: 6.1.1.2 (Tryptophan--tRNA ligase)

Curated GO (PlasmoDB):

Type GO Term Name
Component GO:0005737 cytoplasm
Component GO:0005829 cytosol
Function GO:0004830 tryptophan-tRNA ligase activity
Process GO:0006436 tryptophanyl-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 0.40 0.81
Trophozoite expressed 0.74 0.60
Schizont expressed 0.10 0.94
Gametocyte expressed 0.24 0.86

More info:

Resistome Mutations

Old (Pf3D7v3) Gene ID: PF3D7_1336900

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: 0.142 | MFS: -3.188 | #Insertions: 0

PlasmoGEM Phenotype: Essential (Pb ortholog: PBANKA_1350700)

  • Relative Growth Rate: 0.01 ± 0.03
  • Confidence: 8.20

RMgmDB ABS Phenotype: N/A

More info: PhenoPlasm Link

Binding Evidence

AlphaFill Uniprot ID: Q8IDW3

"Best" AlphaFill ligand hit: TYM (tryptophanyl-5'amp, Local RMSD=5.63) with 4J75 (Global RMSD=2.24)

BRENDA EC Inhibitors:

EC # Name EC Inhibitors
6.1.1.2 tryptophan-tRNA ligase NEMdATPadenineadenosinetryptamineindolmycinL-tryptophanD-tryptophanchuangxinmycinsuccinylacetone3'-O-methyl-ATP5-Methyltryptophan...

No evidence of orthology to BindingDB entries

Orthology Information

Ortholog Group (OrthoMCL): OG6_101168

Most Similar Human Ortholog: P23381

TM-align score: 0.80 | RMSD: 1.25

Seq Identity: 0.52 | Length: 385 / 632

All Human Orthologs (OrthoMCL):

Gene ID Description
ENSG00000140105 tryptophanyl-tRNA synthetase 1

Genetic Variation

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

Homozygous genotype calls only

variant type common rare doubleton singleton
synonymous 3 27 10 39
disruptive 3 35 23 51
missense 3 35 23 37

Any inclusion in genotype call

variant type common rare doubleton singleton
synonymous 18 38 24 51
disruptive 13 75 34 100
missense 10 60 29 59

PlasmoDB Total SNPs: 104

Non-coding: 68 | Synonymous: 25 | Nonsynonymous: 11 | Stop Codon: 0

Protein Information

Protein Length: 632 | Molecular Weight (kDa): 73.1

UniProt ID(s): Q8IDW3

PDB ID(s): 4J75, 4J76, 4JFA

Isoelectric Point: 8.06

Protein Domain Annotations:

Source Family ID Description
InterPro IPR002305 Aminoacyl-tRNA synthetase, class Ic
InterPro IPR002306 Tryptophan-tRNA ligase
InterPro IPR018163 Threonyl/alanyl tRNA synthetase, class II-like, putative editing domain superfamily
PFam PF00579 Aminoacyl-tRNA synthetase, class Ic
Superfamily SSF52374 Threonyl/alanyl tRNA synthetase, class II-like, putative editing domain superfamily
Superfamily SSF55186

Associated Publications

PMID Title Authors DOI/Link
27277538 Selective inhibition of apicoplast tryptophanyl-tRNA synthetase causes delayeddeath in Plasmodium falciparum. Pasaje CF, Cheung V, ..., Ralph SA 10.1038/srep27531
23665145 Crystal structures of Plasmodium falciparum cytosolic tryptophanyl-tRNAsynthetase and its potential as a target for structure-guided drug design Koh CY, Kim JE, ..., Hol WG 10.1016/j.molbiopara.2013.04.007