About Gene List

PF3D7_0816500 (HSP20)

Genome location: Pf3D7_08_v3:760,138..761,031(+)

Genome classification: Core

Function and Localization

Product Description: small heat shock protein HSP20, putative

SignalP Peptide: N/A

# Transmembrane Domains: 0

EC Numbers: None

Curated GO (PlasmoDB):

Type GO Term Name
Component GO:0009986 cell surface
Component GO:0005737 cytoplasm
Component GO:0070258 inner membrane pellicle complex
Function GO:0043621 protein self-association
Function GO:0051082 unfolded protein binding
Process GO:0051259 protein complex oligomerization
Process GO:0006457 protein folding
Process GO:0009408 response to heat
Process GO:0042542 response to hydrogen peroxide
Process GO:0000302 response to reactive oxygen species
Process GO:0009651 response to salt stress
Process GO:0006986 response to unfolded protein

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 not expressed 0.00 1.00
Trophozoite expressed 0.00 1.00
Schizont not expressed 0.00 1.00
Gametocyte expressed 0.03 0.98

More info:

Resistome Mutations

Old (Pf3D7v3) Gene ID: PF3D7_0816500

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: 0.429 | MFS: 0 | #Insertions: 0

PlasmoGEM Phenotype: Dispensable (Pb ortholog: PBANKA_0714300)

  • Relative Growth Rate: 1.04 ± 0.15
  • Confidence: 5.22

RMgmDB ABS Phenotype: Different from wild type (Pb ortholog: PBANKA_0714300)

Modification: Disrupted | RMgm-2241

More info: PhenoPlasm Link

Binding Evidence

AlphaFill Uniprot ID: Q8IB02

"Best" AlphaFill ligand hit: ADP (adenosine-5'-diphosphate, Local RMSD=13.91) with 5UMB (Global RMSD=23.19)

No associated EC numbers

No evidence of orthology to BindingDB entries

Orthology Information

Ortholog Group (OrthoMCL): OG6_129679

No human ortholog(s)

Genetic Variation

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

Homozygous genotype calls only

variant type common rare doubleton singleton
synonymous 2 7 7 7
disruptive 1 3 2 8
missense 1 3 2 7

Any inclusion in genotype call

variant type common rare doubleton singleton
synonymous 2 19 5 9
disruptive 2 7 9 23
missense 2 6 9 13

PlasmoDB Total SNPs: 22

Non-coding: 19 | Synonymous: 2 | Nonsynonymous: 1 | Stop Codon: 0

Protein Information

Protein Length: 172 | Molecular Weight (kDa): 19.371

UniProt ID(s): Q8IB02

PDB ID(s): None

Isoelectric Point: 4.93

Protein Domain Annotations:

Source Family ID Description
InterPro IPR002068 Alpha crystallin/Hsp20 domain
InterPro IPR008978 HSP20-like chaperone
InterPro IPR031107 Small heat shock protein HSP20
PFam PF00011 Alpha crystallin/Hsp20 domain
Superfamily SSF49764 HSP20-like chaperone

Associated Publications

PMID Title Authors DOI/Link
26292257 Discovery of Novel Plasmodium falciparum Pre-Erythrocytic Antigens for VaccineDevelopment. Aguiar JC, Bolton J, ..., Richie TL 10.1371/journal.pone.0136109
28759593 Proteogenomic analysis of the total and surface-exposed proteomes of Plasmodiumvivax salivary gland sporozoites. Swearingen KE, Lindner SE, ..., Mikolajczak SA https://pubmed.ncbi.nlm.nih.gov/28759593/