About Gene List

PF3D7_1463300

Genome location: Pf3D7_14_v3:2,572,705..2,574,812(+)

Genome classification: Core

Function and Localization

Product Description: DNA polymerase alpha subunit B, putative

SignalP Peptide: N/A

# Transmembrane Domains: 0

EC Numbers: 2.7.7.7 (DNA-directed DNA polymerase)

Curated GO (PlasmoDB):

Type GO Term Name
Component GO:0005658 alpha DNA polymerase:primase complex
Component GO:0005739 mitochondrion
Function GO:0003887 DNA-directed DNA polymerase activity
Process GO:0071897 DNA biosynthetic process
Process GO:0006270 DNA replication initiation
Process GO:0006269 DNA replication, synthesis of RNA primer

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 0.04 0.98
Trophozoite expressed 0.38 0.76
Schizont expressed 0.07 0.95
Gametocyte expressed 0.22 0.87

More info:

Resistome Mutations

Old (Pf3D7v3) Gene ID: PF3D7_1463300

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: 0.135 | MFS: -3.065 | #Insertions: 0

PlasmoGEM Phenotype: Essential (Pb ortholog: PBANKA_1326900)

  • Relative Growth Rate: 0.04 ± 0.05
  • Confidence: 7.28

RMgmDB ABS Phenotype: N/A

More info: PhenoPlasm Link

Binding Evidence

AlphaFill Uniprot ID: Q8IKK3

"Best" AlphaFill ligand hit: UMP (2'-deoxyuridine 5'-monophosphate, Local RMSD=3.23) with 7S01 (Global RMSD=16.64)

BRENDA EC Inhibitors:

EC # Name EC Inhibitors
2.7.7.7 DNA-directed DNA polymerase KClEDTANH4+dATPNH4ClddTTPMK886UracilalliinsucroseethanolAllicin...

No evidence of orthology to BindingDB entries

Orthology Information

Ortholog Group (OrthoMCL): OG6_102459

Most Similar Human Ortholog: Q14181

TM-align score: 0.73 | RMSD: 3.31

Seq Identity: 0.19 | Length: 436 / 539

All Human Orthologs (OrthoMCL):

Gene ID Description
ENSG00000014138 DNA polymerase alpha 2, accessory subunit
ENSG00000285816 novel protein, POLA2-CDC42EP2 readthrough

Genetic Variation

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

Homozygous genotype calls only

variant type common rare doubleton singleton
synonymous 0 28 16 35
disruptive 4 28 29 47
missense 4 27 29 42

Any inclusion in genotype call

variant type common rare doubleton singleton
synonymous 3 50 20 35
disruptive 12 68 35 105
missense 9 57 30 83

PlasmoDB Total SNPs: 60

Non-coding: 26 | Synonymous: 21 | Nonsynonymous: 11 | Stop Codon: 2

Protein Information

Protein Length: 539 | Molecular Weight (kDa): 64.036

UniProt ID(s): Q8IKK3

PDB ID(s): None

Isoelectric Point: 6.62

Protein Domain Annotations:

Source Family ID Description
InterPro IPR007185 DNA polymerase alpha/delta/epsilon, subunit B
InterPro IPR016722 DNA polymerase alpha, subunit B
PFam PF04042 DNA polymerase alpha/delta/epsilon, subunit B
Superfamily N/A N/A

Associated Publications

PMID Title Authors DOI/Link
12368864 Genome sequence of the human malaria parasite Plasmodium falciparum. Gardner MJ, Hall N, ..., Barrell B 10.1038/nature01097
34494883 A Prioritized and Validated Resource of Mitochondrial Proteins in PlasmodiumIdentifies Unique Biology. van Esveld SL, Meerstein-Kessel L, ..., Huynen MA 10.1128/mSphere.00614-21