About Gene List

PF3D7_0918600 (RECQ1)

Genome location: Pf3D7_09_v3:764,429..767,461(+)

Genome classification: Core

Function and Localization

Product Description: ATP-dependent DNA helicase Q1

SignalP Peptide: N/A

# Transmembrane Domains: 0

EC Numbers: 3.6.4.12 (DNA helicase)

Curated GO (PlasmoDB):

Type GO Term Name
Component GO:0005694 chromosome
Component GO:0005737 cytoplasm
Component GO:0005739 mitochondrion
Component GO:0005634 nucleus
Function GO:0043138 3'-5' DNA helicase activity
Function GO:0016887 ATP hydrolysis activity
Function GO:0003677 DNA binding
Function GO:0009378 four-way junction helicase activity
Function GO:0005515 protein binding
Process GO:0032508 DNA duplex unwinding
Process GO:0006310 DNA recombination
Process GO:0006281 DNA repair
Process GO:0006268 DNA unwinding involved in DNA replication
Process GO:0000724 double-strand break repair via homologous recombination
Process GO:0097551 mitochondrial double-strand break repair
Process GO:0040029 regulation of gene expression, epigenetic
Process GO:0000723 telomere maintenance

Expression by stage (LR - Le Roch et al., and MCA - Malaria Cell Atlas):

Stage LR class MCA mean MCA prop. zeros
Sporozoite not expressed N/A N/A
Ring possibly expressed 0.09 0.95
Trophozoite expressed 0.47 0.71
Schizont expressed 0.17 0.89
Gametocyte expressed 0.34 0.80

More info:

Resistome Mutations

Old (Pf3D7v3) Gene ID: PF3D7_0918600

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: -1.756 | #Insertions: 3

PlasmoGEM Phenotype: Dispensable (Pb ortholog: PBANKA_0819500)

  • Relative Growth Rate: 0.87 ± 0.18
  • Confidence: 4.87

RMgmDB ABS Phenotype: Different from wild type (Pb ortholog: PBANKA_0819500)

Modification: Disrupted | RMgm-2382

More info: PhenoPlasm Link

Binding Evidence

AlphaFill Uniprot ID: Q8I2W7

"Best" AlphaFill ligand hit: AMP (adenosine monophosphate, Local RMSD=0.03) with 6L5M (Global RMSD=2.98)

BRENDA EC Inhibitors:

EC # Name EC Inhibitors
3.6.4.12 DNA helicase No BRENDA inhibitors

Orthology to BindingDB Entries:

UniProt Protein Name Species Homology Source BindingDB Ligands
Q14191 Bifunctional 3'-5' exonuclease/ATP-dependent helicase WRN Homo sapiens OrthoDB CHEMBL2426168CHEMBL1374426MLS000559245CHEMBL2426190...
P54132 RecQ-like DNA helicase BLM Homo sapiens OrthoDB CHEMBL2426168MLS000559245CHEMBL2426200CHEMBL2426179...

Orthology Information

Ortholog Group (OrthoMCL): OG6_100352

Most Similar Human Ortholog: P46063

TM-align score: 0.64 | RMSD: 3.55

Seq Identity: 0.33 | Length: 452 / 728

All Human Orthologs (OrthoMCL):

Gene ID Description
ENSG00000004700 RecQ like helicase
ENSG00000197299 BLM RecQ like helicase

Protein Information

Protein Length: 728 | Molecular Weight (kDa): 85.509

UniProt ID(s): A0A088SII8, Q8I2W7

PDB ID(s): None

Isoelectric Point: 9.04

Protein Domain Annotations:

Source Family ID Description
InterPro IPR001650 Helicase, C-terminal
InterPro IPR011545 DEAD/DEAH box helicase domain
InterPro IPR014001 Helicase superfamily 1/2, ATP-binding domain
InterPro IPR027417 P-loop containing nucleoside triphosphate hydrolase
InterPro IPR032284 ATP-dependent DNA helicase RecQ, zinc-binding domain
PFam PF00270 DEAD/DEAH box helicase domain
PFam PF00271 Helicase, C-terminal
PFam PF16124 ATP-dependent DNA helicase RecQ, zinc-binding domain
Superfamily SSF52540 P-loop containing nucleoside triphosphate hydrolase

Genetic Variation

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

Homozygous genotype calls only

variant type common rare doubleton singleton
synonymous 3 41 24 54
disruptive 24 95 68 123
missense 12 78 57 108

Any inclusion in genotype call

variant type common rare doubleton singleton
synonymous 8 81 39 51
disruptive 47 222 109 187
missense 26 168 91 113

PlasmoDB Total SNPs: 108

Non-coding: 50 | Synonymous: 35 | Nonsynonymous: 22 | Stop Codon: 1

Associated Publications

PMID Title Authors DOI/Link
12368867 Sequence of Plasmodium falciparum chromosomes 1, 3-9 and 13. Hall N, Pain A, ..., Barrell BG 10.1038/nature01095
25111966 Characterization of recombinant malarial RecQ DNA helicase. Suntornthiticharoen P, Srila W, ..., Yamabhai M https://pubmed.ncbi.nlm.nih.gov/25111966/
26917473 Plasmodium falciparum Bloom homologue, a nucleocytoplasmic protein, translocatesin 3' to 5' direction and is essential for parasite growth. Rahman F, Tarique M, Tuteja R 10.1016/j.bbapap.2016.02.016
29965959 RecQ helicases in the malaria parasite Plasmodium falciparum affect genomestability, gene expression patterns and DNA replication dynamics. Claessens A, Harris LM, ..., Merrick CJ 10.1371/journal.pgen.1007490
30728298 DNA helicase RecQ1 regulates mutually exclusive expression of virulence genes inPlasmodium falciparum via heterochromatin alteration. Li Z, Yin S, ..., Jiang L 10.1073/pnas.1811766116
33239368 Elucidation of D NA Repair Function of Pf Blm and Potentiation of Artemisinin Action by a Small-Molecule Inhibitor of Rec Q Helicase Suthram N, Padhi S, ..., Bhattacharyya MK 10.1128/mSphere.00956-20
33241842 Elucidation of an essential function of the unique charged domain of Plasmodiumtopoisomerase I II Bansod S, Bung N, ..., Bhattacharyya S 10.1042/BCJ20200318
34730376 Bloom Helicase Along with Recombinase Rad51 Repairs the Mitochondrial Genome ofthe Malaria Parasite. Jha P, Gahlawat A, ..., Bhattacharyya MK 10.1128/mSphere.00718-21