About Gene List

PF3D7_0902800 (SERA9)

Genome location: Pf3D7_09_v3:120,969..125,252(-)

Genome classification: Core

Function and Localization

Product Description: serine repeat antigen 9

SignalP Peptide: MKVSFTLFFIIYIILNCDVLKC

# Transmembrane Domains: 0

EC Numbers: 3.4.22.2 (Papain)

Curated GO (PlasmoDB):

Type GO Term Name
Component GO:0005615 extracellular space
Component GO:0005764 lysosome
Function GO:0004197 cysteine-type endopeptidase activity
Process GO:0002377 immunoglobulin production
Process GO:0051603 proteolysis involved in cellular protein catabolic process
Process GO:0050776 regulation of immune response

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 not expressed 0.14 0.94
Trophozoite expressed 1.31 0.43
Schizont expressed 0.43 0.79
Gametocyte not expressed 0.16 0.92

More info:

Resistome Mutations

Old (Pf3D7v3) Gene ID: PF3D7_0902800

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: 0.045 | #Insertions: 7

PlasmoGEM Phenotype: Dispensable (Pb ortholog: PBANKA_0305100)

  • Relative Growth Rate: 1.04 ± 0.17
  • Confidence: 4.93

RMgmDB ABS Phenotype: Different from wild type (Pb ortholog: PBANKA_0305100)

Modification: Disrupted | RMgm-1762

More info: PhenoPlasm Link

Binding Evidence

AlphaFill Uniprot ID: Q8I3C0

"Best" AlphaFill ligand hit: PGO (s-1,2-propanediol, Local RMSD=0.03) with 4X6J (Global RMSD=2.96)

BRENDA EC Inhibitors:

EC # Name EC Inhibitors
3.4.22.2 papain DFPE64HgCl2CpPRIethanolmethanolantipainchitosanchagasincystatinPdKl-3.1PdKl-3.2...

No evidence of orthology to BindingDB entries

Orthology Information

Ortholog Group (OrthoMCL): OG6_126098

No human ortholog(s)

Genetic Variation

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

Homozygous genotype calls only

variant type common rare doubleton singleton
synonymous 8 31 27 44
disruptive 18 136 65 157
missense 18 134 64 148

Any inclusion in genotype call

variant type common rare doubleton singleton
synonymous 16 64 32 49
disruptive 43 248 105 233
missense 42 237 98 179

PlasmoDB Total SNPs: 141

Non-coding: 88 | Synonymous: 26 | Nonsynonymous: 27 | Stop Codon: 0

Protein Information

Protein Length: 932 | Molecular Weight (kDa): 105.544

UniProt ID(s): A0A0E3VL35, A0A0E4B249, A0A0E4FHW8, Q8I3C0

PDB ID(s): None

Isoelectric Point: 4.91

Protein Domain Annotations:

Source Family ID Description
InterPro IPR000668 Peptidase C1A, papain C-terminal
InterPro IPR025660 Cysteine peptidase, histidine active site
InterPro IPR038765 Papain-like cysteine peptidase superfamily
PFam PF00112 Peptidase C1A, papain C-terminal
Superfamily SSF54001 Papain-like cysteine peptidase superfamily

Associated Publications

PMID Title Authors DOI/Link
12228245 A subset of Plasmodium falciparum SERA genes are expressed and appear to play animportant role in the erythrocytic cycle. Miller SK, Good RT, ..., Crabb BS 10.1074/jbc.M206974200
12368867 Sequence of Plasmodium falciparum chromosomes 1, 3-9 and 13. Hall N, Pain A, ..., Barrell BG 10.1038/nature01095
17893128 Evidence for a common role for the serine-type Plasmodium falciparum serinerepeat antigen proteases: implications for vaccine and drug design McCoubrie JE, Miller SK, ..., Crabb BS 10.1128/IAI.00405-07