RMgmDB - Rodent Malaria genetically modified Parasites

Summary

RMgm-4368
Malaria parasiteP. berghei
Genotype
TaggedGene model (rodent): PBANKA_0204600; Gene model (P.falciparum): PF3D7_0109000; Gene product: photosensitized INA-labeled protein PHIL1 (PhIL1)
Name tag: GFP
Phenotype Asexual bloodstage; Gametocyte/Gamete; Fertilization and ookinete; Oocyst; Sporozoite; Liver stage;
Last modified: 18 November 2017, 21:03
  *RMgm-4368
Successful modificationThe parasite was generated by the genetic modification
The mutant contains the following genetic modification(s) Gene tagging
Reference (PubMed-PMID number) Reference 1 (PMID number) : 29138437
MR4 number
Parent parasite used to introduce the genetic modification
Rodent Malaria ParasiteP. berghei
Parent strain/lineP. berghei ANKA
Name parent line/clone P. berghei ANKA 2.34
Other information parent lineP. berghei ANKA 2.34 is a cloned, gametocyte producer line of the ANKA strain (PubMed: PMID: 15137943).
The mutant parasite was generated by
Name PI/ResearcherSaini E, Tewari R
Name Group/DepartmentSchool of Life Sciences
Name InstituteUniversity of Nottingham
CityNottingham
CountryUK
Name of the mutant parasite
RMgm numberRMgm-4368
Principal namePhIL1-GFP
Alternative name
Standardized name
Is the mutant parasite cloned after genetic modificationYes
Phenotype
Asexual blood stagePhIL1-GFP expression in early/late schizonts
Gametocyte/GametePhIL1-GFP expression in activated male gametocytes (absent in females)
Fertilization and ookinetePhIL1-GFP expression in ookinetes (at both apical and basal ends of the parasite)
Oocystno details provided
SporozoitePhIL1-GFP expression in sporozoites (at both apical and basal ends of the parasite)
Liver stagePhIL1-GFP expression in early/late schizonts
Additional remarks phenotype

Mutant/mutation
The mutant expresses a C-terminal GFP-tagged version of PhIL1

Protein (function)

PhIL1 is part of the inner membrane complex (IMC)

Phenotype
Unsuccessful attempts to disrupt this gene indicate an essential function during asexual blood stage growth (see RMgm-4366).
PhIL1-GFP expression in early/late schizonts (blood and liver), in ookinetes and sporozoites


Additional information
In the paper evidence is presented that:
i) PhIL1 is part of the inner membrane complex (IMC). See also RMgm-4368)
ii) PhIL1 is located in the IMC in all three invasive (merozoite, ookinete-, and sporozoite) stages of development, as well as in the male gametocyte and locates both at the apical and basal ends of ookinete and sporozoite stages.

To investigate further the location of PhIL1 relative to other apical and uniform IMC markers, PhIL1-GFP parasites were crossed with lines expressing ISP1-Cherry (uniform IMC marker) and MyoA-Cherry (apical marker) lines. During liver stage development, PhIL1-GFP co-localized with MyoA-mCherry showing a similar overall distribution. In ookinetes, while a substantial portion of the peripheral weak PhIL1 staining colocalised with ISP1, the very apical end of the ISP1 staining was devoid of PhIL1 staining. MyoA-Cherry also displays a subapical ring-shaped location, but this also appeared as slightly apical to the strong sub-apical staining shown by PhIL1. Therefore PhIL1 displays a distribution in ookinetes unlike that of either ISP1 or MyoA.

Other mutants


  Tagged: Mutant parasite with a tagged gene
Details of the target gene
Gene Model of Rodent Parasite PBANKA_0204600
Gene Model P. falciparum ortholog PF3D7_0109000
Gene productphotosensitized INA-labeled protein PHIL1
Gene product: Alternative namePhIL1
Details of the genetic modification
Name of the tagGFP
Details of taggingC-terminal
Additional remarks: tagging
Commercial source of tag-antibodies
Type of plasmid/construct(Linear) plasmid single cross-over
PlasmoGEM (Sanger) construct/vector usedNo
Modified PlasmoGEM construct/vector usedNo
Plasmid/construct map
Plasmid/construct sequence
Restriction sites to linearize plasmid
Selectable marker used to select the mutant parasitehdhfr
Promoter of the selectable markerunknown
Selection (positive) procedurepyrimethamine
Selection (negative) procedureNo
Additional remarks genetic modification
Additional remarks selection procedure
Primer information: Primers used for amplification of the target sequences  Click to view information
Primer information: Primers used for amplification of the target sequences  Click to hide information
Sequence Primer 1
Additional information primer 1
Sequence Primer 2
Additional information primer 2
Sequence Primer 3
Additional information primer 3
Sequence Primer 4
Additional information primer 4
Sequence Primer 5
Additional information primer 5
Sequence Primer 6
Additional information primer 6