About Gene List

PF3D7_0324800 (RIF)

Genome location: Pf3D7_03_v3:1,027,571..1,028,929(+)

Genome classification: SubtelomericHypervariable

Function and Localization

Product Description: rifin

SignalP Peptide: MKVHYFNIFLFSLPLNIILLSS

# Transmembrane Domains: 1

EC Numbers: None

Curated GO (PlasmoDB):

Type GO Term Name
Component GO:0020036 Maurer's cleft
Component GO:0020002 host cell plasma membrane
Component GO:0020003 symbiont-containing vacuole
Function GO:0005515 protein binding
Process GO:0020033 antigenic variation
Process GO:0020035 cytoadherence to microvasculature, mediated by symbiont protein
Process GO:0020013 modulation by symbiont of host erythrocyte aggregation

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 expressed 0.00 1.00
Trophozoite expressed 0.00 1.00
Schizont expressed 0.00 1.00
Gametocyte expressed 0.00 1.00

More info:

Resistome Mutations

Old (Pf3D7v3) Gene ID: PF3D7_0324800

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: -2.954 | #Insertions: 1

PlasmoGEM Phenotype: N/A

RMgmDB ABS Phenotype: N/A

More info: PhenoPlasm Link

Binding Evidence

AlphaFill Uniprot ID: O97311

"Best" AlphaFill ligand hit: No AlphaFill hits

No associated EC numbers

No evidence of orthology to BindingDB entries

Orthology Information

Ortholog Group (OrthoMCL): OG6_100719

No human ortholog(s)

Genetic Variation

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

No passing variants found

PlasmoDB Total SNPs: 644

Non-coding: 87 | Synonymous: 142 | Nonsynonymous: 412 | Stop Codon: 3

Protein Information

Protein Length: 371 | Molecular Weight (kDa): 41.28

UniProt ID(s): O97311

PDB ID(s): None

Isoelectric Point: 8.84

Protein Domain Annotations:

Source Family ID Description
InterPro IPR006373 Variant surface antigen Rifin
PFam PF02009 Variant surface antigen Rifin
Superfamily N/A N/A

Associated Publications

PMID Title Authors DOI/Link
10430943 Rifins: a second family of clonally variant proteins expressed on the surface ofred cells infected with Plasmodium falciparum. Kyes SA, Rowe JA, Kriek N, Newbold CI 10.1073/pnas.96.16.9333
10448855 The complete nucleotide sequence of chromosome 3 of Plasmodium falciparum. Bowman S, Lawson D, ..., Barrell BG 10.1038/22964
12368867 Sequence of Plasmodium falciparum chromosomes 1, 3-9 and 13. Hall N, Pain A, ..., Barrell BG 10.1038/nature01095
25751816 RIFINs are adhesins implicated in severe Plasmodium falciparum malaria. Goel S, Palmkvist M, ..., Wahlgren M 10.1038/nm.3812
33790470 Structural basis of malaria RIFIN binding by LILRB1-containing antibodies. Chen Y, Xu K, ..., Lanzavecchia A 10.1038/s41586-021-03378-6