About Gene List

PF3D7_0935000 (SNRPB2)

Genome location: Pf3D7_09_v3:1,366,182..1,367,150(-)

Genome classification: Core

Function and Localization

Product Description: U2 small nuclear ribonucleoprotein B'', putative

SignalP Peptide: N/A

# Transmembrane Domains: 0

EC Numbers: None

Curated GO (PlasmoDB):

Type GO Term Name
Component GO:0005685 U1 snRNP
Component GO:0005634 nucleus
Function GO:0030619 U1 snRNA binding
Function GO:0003729 mRNA binding
Process GO:0000398 mRNA splicing, via spliceosome

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 expressed 0.08 0.96
Trophozoite expressed 0.21 0.87
Schizont expressed 0.05 0.97
Gametocyte expressed 0.04 0.97

More info:

Resistome Mutations

Old (Pf3D7v3) Gene ID: PF3D7_0935000

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: 0.119 | MFS: -3.017 | #Insertions: 0

PlasmoGEM Phenotype: Essential (Pb ortholog: PBANKA_1405400)

  • Relative Growth Rate: 0.18 ± 0.29
  • Confidence: 3.89

RMgmDB ABS Phenotype: N/A

More info: PhenoPlasm Link

Binding Evidence

AlphaFill Uniprot ID: Q8I2G9

"Best" AlphaFill ligand hit: 15P (peg 1500, Local RMSD=0.08) with 6F4J (Global RMSD=3.54)

No associated EC numbers

No evidence of orthology to BindingDB entries

Orthology Information

Ortholog Group (OrthoMCL): OG6_100753

Most Similar Human Ortholog: M0R0G9

TM-align score: 0.91 | RMSD: 1.50

Seq Identity: 0.38 | Length: 86 / 193

All Human Orthologs (OrthoMCL):

Gene ID Description
ENSG00000077312 small nuclear ribonucleoprotein polypeptide A
ENSG00000125870 small nuclear ribonucleoprotein polypeptide B2

Genetic Variation

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

Homozygous genotype calls only

variant type common rare doubleton singleton
synonymous 2 9 11 17
disruptive 2 8 10 20
missense 2 8 10 19

Any inclusion in genotype call

variant type common rare doubleton singleton
synonymous 3 21 12 14
disruptive 5 23 20 38
missense 3 16 18 32

PlasmoDB Total SNPs: 27

Non-coding: 24 | Synonymous: 1 | Nonsynonymous: 2 | Stop Codon: 0

Protein Information

Protein Length: 193 | Molecular Weight (kDa): 22.295

UniProt ID(s): Q8I2G9

PDB ID(s): None

Isoelectric Point: 9.63

Protein Domain Annotations:

Source Family ID Description
InterPro IPR000504 RNA recognition motif domain
InterPro IPR035979 RNA-binding domain superfamily
PFam PF00076 RNA recognition motif domain
Superfamily SSF54928 RNA-binding domain superfamily

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
23181666 Organellar proteomics reveals hundreds of novel nuclear proteins in the malariaparasite Plasmodium falciparum. Oehring SC, Woodcroft BJ, ..., Voss TS 10.1186/gb-2012-13-11-r108
27381095 The mRNA-bound proteome of the human malaria parasite Plasmodium falciparum. Bunnik EM, Batugedara G, ..., Le Roch KG 10.1186/s13059-016-1014-0
9799242 The yeast U2A'/U2B complex is required for pre-spliceosome formation Caspary F, Seraphin B 10.1093/emboj/17.21.6348
9716128 Crystal structure of the spliceosomal U2B"-U2A' protein complex bound to afragment of U2 small nuclear RNA Price SR, Evans PR, Nagai K 10.1038/29234
7556097 Molecular characterization of the spliceosomal proteins U1A and U2B" from higherplants Simpson GG, Clark GP, ..., Brown JW 10.1002/j.1460-2075.1995.tb00133.x