About Gene List

PF3D7_0831700 (HSP70x)

Genome location: Pf3D7_08_v3:1,364,640..1,369,862(-)

Genome classification: Core

Function and Localization

Product Description: heat shock protein 70

SignalP Peptide: MKTKICSYIHYIVLFLIATTTVHT

# Transmembrane Domains: 1

EC Numbers: None

Curated GO (PlasmoDB):

Type GO Term Name
Component GO:0020036 Maurer's cleft
Component GO:0005737 cytoplasm
Component GO:1903561 extracellular vesicle
Component GO:0030430 host cell cytoplasm
Component GO:0044164 host cell cytosol
Component GO:0005634 nucleus
Component GO:0032991 protein-containing complex
Component GO:0020003 symbiont-containing vacuole
Function GO:0005524 ATP binding
Function GO:0016887 ATP hydrolysis activity
Function GO:0003723 RNA binding
Function GO:0031072 heat shock protein binding
Function GO:0051787 misfolded protein binding
Function GO:0005515 protein binding
Function GO:0044183 protein folding chaperone
Function GO:0051082 unfolded protein binding
Process GO:0034620 cellular response to unfolded protein
Process GO:0051085 chaperone cofactor-dependent protein refolding
Process GO:0020035 cytoadherence to microvasculature, mediated by symbiont protein
Process GO:0042026 protein refolding
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 no data N/A N/A
Ring no data 2.67 0.21
Trophozoite no data 1.88 0.25
Schizont no data 0.61 0.70
Gametocyte no data 0.66 0.70

More info:

Resistome Mutations

Old (Pf3D7v3) Gene ID: PF3D7_0831700

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: 0.585 | #Insertions: 5

PlasmoGEM Phenotype: Essential (Pb ortholog: PBANKA_0711900)

  • Relative Growth Rate: 0.02 ± 0.40
  • Confidence: 3.23

RMgmDB ABS Phenotype: N/A

More info: PhenoPlasm Link

Binding Evidence

AlphaFill Uniprot ID: P12078

"Best" AlphaFill ligand hit: TMO (trimethylamine oxide, Local RMSD=0.19) with 4FL9 (Global RMSD=6.80)

No associated EC numbers

No evidence of orthology to BindingDB entries

Orthology Information

Ortholog Group (OrthoMCL): OG6_100083

Most Similar Human Ortholog: E9PK54

TM-align score: 0.99 | RMSD: 0.63

Seq Identity: 0.77 | Length: 183 / 679

All Human Orthologs (OrthoMCL):

Gene ID Description
ENSG00000044574 heat shock protein family A (Hsp70) member 5
ENSG00000109971 heat shock protein family A (Hsp70) member 8
ENSG00000126803 heat shock protein family A (Hsp70) member 2
ENSG00000173110 heat shock protein family A (Hsp70) member 6
ENSG00000204388 heat shock protein family A (Hsp70) member 1B
ENSG00000204389 heat shock protein family A (Hsp70) member 1A
ENSG00000204390 heat shock protein family A (Hsp70) member 1 like
ENSG00000206383 heat shock protein family A (Hsp70) member 1 like
ENSG00000212866 heat shock protein family A (Hsp70) member 1B
ENSG00000215328 heat shock protein family A (Hsp70) member 1A
ENSG00000224501 heat shock protein family A (Hsp70) member 1B
ENSG00000226704 heat shock protein family A (Hsp70) member 1 like
ENSG00000231555 heat shock protein family A (Hsp70) member 1B
ENSG00000232804 heat shock protein family A (Hsp70) member 1B
ENSG00000234258 heat shock protein family A (Hsp70) member 1 like
ENSG00000234475 heat shock protein family A (Hsp70) member 1A
ENSG00000235941 heat shock protein family A (Hsp70) member 1A
ENSG00000236251 heat shock protein family A (Hsp70) member 1 like
ENSG00000237724 heat shock protein family A (Hsp70) member 1A

Genetic Variation

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

Homozygous genotype calls only

variant type common rare doubleton singleton
synonymous 1 0 1 1
disruptive 0 2 2 4
missense 0 2 2 4

Any inclusion in genotype call

variant type common rare doubleton singleton
synonymous 1 2 0 4
disruptive 1 2 6 12
missense 1 1 6 9

PlasmoDB Total SNPs: 198

Non-coding: 176 | Synonymous: 14 | Nonsynonymous: 8 | Stop Codon: 0

Protein Information

Protein Length: 679 | Molecular Weight (kDa): 75.053

UniProt ID(s): K7NTP5, P12078

PDB ID(s): 6RZQ, 6S02, 6ZHI, 7NQR, 7NQS, 7NQU, 7NQZ, 7OOE, 7OOG, 7OOH, 7P31

Isoelectric Point: 5.44

Protein Domain Annotations:

Source Family ID Description
InterPro IPR013126 Heat shock protein 70 family
InterPro IPR018181 Heat shock protein 70, conserved site
InterPro IPR029047 Heat shock protein 70kD, peptide-binding domain superfamily
InterPro IPR029048 Heat shock protein 70kD, C-terminal domain superfamily
InterPro IPR043129 ATPase, nucleotide binding domain
PFam PF00012 Heat shock protein 70 family
Superfamily SSF100920 Heat shock protein 70kD, peptide-binding domain superfamily
Superfamily SSF100934 Heat shock protein 70kD, C-terminal domain superfamily
Superfamily SSF53067 ATPase, nucleotide binding domain

Associated Publications

PMID Title Authors DOI/Link
20482550 Parasite-encoded Hsp40 proteins define novel mobile structures in the cytosol ofthe P. falciparum-infected erythrocyte. Kulzer S, Rug M, ..., Przyborski JM 10.1111/j.1462-5822.2010.01477.x
22925632 Plasmodium falciparum-encoded exported hsp70/hsp40 chaperone/co-chaperonecomplexes within the host erythrocyte. Kulzer S, Charnaud S, ..., Przyborski JM 10.1111/j.1462-5822.2012.01840.x
23340228 Identification of an exported heat shock protein 70 in Plasmodium falciparum. Grover M, Chaubey S, Ranade S, Tatu U 10.1051/parasite/2012002
24028577 Plasmodium falciparum Hsp70-x: a heat shock protein at the host-parasiteinterface. Hatherley R, Blatch GL, Bishop OT 10.1080/07391102.2013.834849
26083397 Overexpression, Purification and Characterisation of the Plasmodium falciparumHsp70-z (PfHsp70-z) Protein. Zininga T, Achilonu I, ..., Shonhai A 10.1371/journal.pone.0129445
26845441 The Malarial Exported PFA0660w Is an Hsp40 Co-Chaperone of PfHsp70-x. Daniyan MO, Boshoff A, ..., Blatch GL 10.1371/journal.pone.0148517
27824087 Trafficking of the exported P. falciparum chaperone PfHsp70x. Rhiel M, Bittl V, ..., Przyborski JM 10.1038/srep36174
28732045 The exported chaperone Hsp70-x supports virulence functions for Plasmodiumfalciparum blood stage parasites. Charnaud SC, Dixon MWA, ..., Gilson PR 10.1371/journal.pone.0181656
28944300 Proteomic analysis of extracellular vesicles from a Plasmodium falciparum Kenyanclinical isolate defines a core parasite secretome. Abdi A, Yu L, ..., Rayner J 10.12688/wellcomeopenres.11910.2
30183110 Structural and biochemical characterization of Plasmodium falciparum Hsp70-xreveals functional versatility of its C-terminal EEVN motif. Mabate B, Zininga T, ..., Shonhai A 10.1002/prot.25600
30379851 Identification of Plasmodium falciparum nuclear proteins by mass spectrometry andproposed protein annotation. Briquet S, Ourimi A, ..., Vaquero C 10.1371/journal.pone.0205596
30804381 Cholesterol bound Plasmodium falciparum co-chaperone 'PFA0660w' complexes withmajor virulence factor 'PfEMP1' via chaperone 'PfHsp70-x'. Behl A, Kumar V, ..., Mishra PC 10.1038/s41598-019-39217-y
31430682 Structural insights into the binding mechanism of Plasmodium falciparum exportedHsp40-Hsp70 chaperone pair. Behl A, Mishra PC 10.1016/j.compbiolchem.2019.107099
33906926 Functional Characterization of the m(6)A-Dependent Translational Modulator PfYTH Sinha A, Baumgarten S, ..., Scherf A 10.1128/mBio.00661-21
29211247 Immunoproteomics of Plasmodium falciparum-infected red blood cell membranefractions Cabral FJ, Vianna LG, ..., Wunderlich G 10.1590/0074-02760170041
28959740 The Exported Chaperone PfHsp70x Is Dispensable for the Plasmodium falciparumIntraerythrocytic Life Cycle Cobb DW, Florentin A, ..., Muralidharan V 10.1128/mSphere.00363-17
27019089 Proteomic analysis reveals novel proteins associated with the Plasmodium proteinexporter PTEX and a loss of complex stability upon truncation of the core PTEXcomponent, PTEX150 Elsworth B, Sanders PR, ..., Gilson PR 10.1111/cmi.12596
31690116 The Plasmodium falciparum Hsp70-x chaperone assists the heat stress response ofthe malaria parasite Day J, Passecker A, Beck HP, Vakonakis I 10.1096/fj.201901741R
37074531 Human granzyme B binds Plasmodium falciparum Hsp70-x and mediates antiplasmodialactivity in vitro Ramatsui L, Dongola TH, ..., Shonhai A 10.1007/s12192-023-01339-8
31717270 Establishing Computational Approaches Towards Identifying Malarial AllostericModulators: A Case Study of Plasmodium falciparum Hsp70s Amusengeri A, Astl L, ..., Tastan Bishop O 10.3390/ijms20225574