About Gene List

PF3D7_1032400 (PIGA)

Genome location: Pf3D7_10_v3:1,302,298..1,305,315(-)

Genome classification: Core

Function and Localization

Product Description: phosphatidylinositol N-acetylglucosaminyltransferase subunit A, putative

SignalP Peptide: N/A

# Transmembrane Domains: 1

EC Numbers: 2.4.1.198 (Phosphatidylinositol N-acetylglucosaminyltransferase)

Curated GO (PlasmoDB):

Type GO Term Name
Component GO:0005783 endoplasmic reticulum
Function GO:0003824 catalytic activity
Function GO:0017176 phosphatidylinositol N-acetylglucosaminyltransferase activity
Process GO:0006506 GPI anchor biosynthetic process

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 not expressed 0.02 0.99
Trophozoite expressed 0.24 0.84
Schizont expressed 0.14 0.90
Gametocyte not expressed 0.14 0.92

More info:

Resistome Mutations

Old (Pf3D7v3) Gene ID: PF3D7_1032400

Resistome Missense Mutations: R221K

Resistome Compounds with Missense Mutations: MMV665794

Resistome # Samples with Disruptive Mutations: 4 (3 missense, 3 "interesting" missense)

Essentiality (ABS)

Zhang Phenotype: Non - Mutable in CDS

MIS: 0.798 | MFS: -2.212 | #Insertions: 0

PlasmoGEM Phenotype: N/A

RMgmDB ABS Phenotype: N/A

More info: PhenoPlasm Link

Binding Evidence

AlphaFill Uniprot ID: Q8IJ83

"Best" AlphaFill ligand hit: UPG (uridine-5'-diphosphate-glucose, Local RMSD=1.68) with 4XSR (Global RMSD=6.19)

BRENDA EC Inhibitors:

EC # Name EC Inhibitors
2.4.1.198 phosphatidylinositol N-acetylglucosaminyltransferase iodoacetic acidN-ethylmaleimideSH-alkylating reagentsp-chloromercuriphenylsulfonic acid

No evidence of orthology to BindingDB entries

Orthology Information

Ortholog Group (OrthoMCL): OG6_100580

Most Similar Human Ortholog: P37287

TM-align score: 0.91 | RMSD: 1.49

Seq Identity: 0.47 | Length: 431 / 461

All Human Orthologs (OrthoMCL):

Gene ID Description
ENSG00000165195 phosphatidylinositol glycan anchor biosynthesis class A

Genetic Variation

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

Homozygous genotype calls only

variant type common rare doubleton singleton
synonymous 2 22 21 31
disruptive 4 11 5 23
missense 4 10 5 20

Any inclusion in genotype call

variant type common rare doubleton singleton
synonymous 6 55 32 24
disruptive 6 30 20 67
missense 6 21 16 46

PlasmoDB Total SNPs: 124

Non-coding: 108 | Synonymous: 14 | Nonsynonymous: 2 | Stop Codon: 0

Protein Information

Protein Length: 461 | Molecular Weight (kDa): 53.113

UniProt ID(s): Q8IJ83

PDB ID(s): None

Isoelectric Point: 9.12

Protein Domain Annotations:

Source Family ID Description
InterPro IPR001296 Glycosyl transferase, family 1
InterPro IPR013234 PIGA, GPI anchor biosynthesis
PFam PF00534 Glycosyl transferase, family 1
PFam PF08288 PIGA, GPI anchor biosynthesis
Superfamily SSF53756 N/A

Associated Publications

PMID Title Authors DOI/Link
12117963 Genes for glycosylphosphatidylinositol toxin biosynthesis in Plasmodiumfalciparum. Delorenzi M, Sexton A, ..., Schofield L 10.1128/IAI.70.8.4510-4522.2002
12368864 Genome sequence of the human malaria parasite Plasmodium falciparum. Gardner MJ, Hall N, ..., Barrell B 10.1038/nature01097