About Gene List

PF3D7_1333000 (CPN20)

Genome location: Pf3D7_13_v3:1,354,881..1,357,621(+)

Genome classification: Core

Function and Localization

Product Description: 20 kDa chaperonin

SignalP Peptide: MKIIFLLNIVILFLTNVLT

# Transmembrane Domains: 0

EC Numbers: None

Curated GO (PlasmoDB):

Type GO Term Name
Component GO:0020011 apicoplast
Component GO:0005759 mitochondrial matrix
Component GO:0005634 nucleus
Component GO:0009536 plastid
Function GO:0051087 chaperone binding
Function GO:0046872 metal ion binding
Function GO:0051082 unfolded protein binding
Process GO:0051085 chaperone cofactor-dependent protein refolding
Process GO:0061077 chaperone-mediated protein folding

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 expressed 0.07 0.96
Trophozoite expressed 0.27 0.83
Schizont expressed 0.03 0.98
Gametocyte expressed 0.19 0.89

More info:

Resistome Mutations

Old (Pf3D7v3) Gene ID: PF3D7_1333000

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: 0.37 | MFS: -3.541 | #Insertions: 0

PlasmoGEM Phenotype: Essential (Pb ortholog: PBANKA_1347800)

  • Relative Growth Rate: 0.08 ± 0.85
  • Confidence: 1.71

RMgmDB ABS Phenotype: N/A

More info: PhenoPlasm Link

Binding Evidence

AlphaFill Uniprot ID: Q8IDZ8

"Best" AlphaFill ligand hit: No AlphaFill hits

No associated EC numbers

No evidence of orthology to BindingDB entries

Orthology Information

Ortholog Group (OrthoMCL): OG6_100490

Most Similar Human Ortholog: B8ZZL8

TM-align score: 0.77 | RMSD: 2.46

Seq Identity: 0.28 | Length: 94 / 258

All Human Orthologs (OrthoMCL):

Gene ID Description
ENSG00000115541 heat shock protein family E (Hsp10) member 1

Genetic Variation

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

Homozygous genotype calls only

variant type common rare doubleton singleton
synonymous 1 13 10 11
disruptive 1 15 6 20
missense 1 15 6 18

Any inclusion in genotype call

variant type common rare doubleton singleton
synonymous 5 25 10 14
disruptive 10 25 17 48
missense 7 21 15 36

PlasmoDB Total SNPs: 202

Non-coding: 181 | Synonymous: 18 | Nonsynonymous: 3 | Stop Codon: 0

Protein Information

Protein Length: 258 | Molecular Weight (kDa): 29.063

UniProt ID(s): Q50JA7, Q8IDZ8

PDB ID(s): None

Isoelectric Point: 7.78

Protein Domain Annotations:

Source Family ID Description
InterPro IPR011032 GroES-like superfamily
InterPro IPR018369 Chaperonin GroES, conserved site
InterPro IPR020818 GroES chaperonin family
PFam PF00166 GroES chaperonin family
Superfamily SSF50129 GroES-like superfamily

Associated Publications

PMID Title Authors DOI/Link
15926202 Organelle-specific cochaperonins in apicomplexan parasites. Sato S, Wilson RJ 10.1016/j.molbiopara.2005.01.010
23326533 P. falciparum cpn20 is a bona fide co-chaperonin that can replace GroES in E.coli. Vitlin Gruber A, Nisemblat S, ..., Weiss C 10.1371/journal.pone.0053909
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
30379851 Identification of Plasmodium falciparum nuclear proteins by mass spectrometry andproposed protein annotation. Briquet S, Ourimi A, ..., Vaquero C 10.1371/journal.pone.0205596