Summary

RMgm-484
Malaria parasiteP. berghei
Genotype
DisruptedGene model (rodent): PBANKA_0701900; Gene model (P.falciparum): PF3D7_0828800; Gene product: GPI-anchored micronemal antigen (PSOP9, putative secreted ookinete protein 9; GAMA)
PhenotypeNo phenotype has been described
Last modified: 21 December 2011, 09:26
  *RMgm-484
Successful modificationThe parasite was generated by the genetic modification
The mutant contains the following genetic modification(s) Gene disruption
Reference (PubMed-PMID number) Reference 1 (PMID number) : 22184632
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 1037m1f1mocl1 (RMgm-32)
Other information parent lineP. berghei ANKA 1037m1f1mocl1 (1037cl1; RMgm-32) is a reference ANKA mutant line which expresses GFP-luciferase under control of a schizont-specific promoter (PubMed: PMID: 20019192). It does not contain a drug-selectable marker and has been selected by FACS sorting based on GFP expression
The mutant parasite was generated by
Name PI/ResearcherJ. Fonager, E.M. Pasini, C.J. Janse, B.M Franke-Fayard
Name Group/DepartmentLeiden Malaria Research Group
Name InstituteLeiden University Medical Center (LUMC)
CityLeiden
CountryThe Netherlands
Name of the mutant parasite
RMgm numberRMgm-484
Principal nameexp. 1167cl2, cl3
Alternative name
Standardized name
Is the mutant parasite cloned after genetic modificationYes
Phenotype
Asexual blood stageNot different from wild type
Gametocyte/GameteNot tested
Fertilization and ookineteNot tested
OocystNot tested
SporozoiteNot tested
Liver stageNot tested
Additional remarks phenotype

A pyrimethamine-resistant parasite population was selected after transfection with a construct for targeted gene disruption by double cross-over homologous recombination. The primers of the two target sequences of the gene are provided below.

The genotype of the parasites has not been analysed in detail.
Diagnostic PCR (for correct integration of the construct) and/or Southern analysis of PFG-separated chromosomes (to show integration into the chromosome on which the target gene is located) have been performed (see below). This analysis provided evidence for correct disruption of the gene indicating that it has no essential function during asexual blood stage development. However, no further analyses on the parasite population/cloned lines have been performed to show absence of transcripts or protein .

The phenotype of the selected parasite population/cloned lines has not been analysed in detail.
No obvious growth defects of the asexual blood stages of the selected parasite populations/cloned lines have been observed.

The gene has been selected for targeted gene disruption based on its presence in a proteome of membranes of infected red blood cells

See also RMgm-95 for an independent mutant with PBANKA_070190 disrupted with a phenotype during the transition of ookinete to oocyst and oocyst development.

It has been reported that the P. falciparum ortholog,  PF08_0008,  is refractory to gene knockout attempts (Arumugam TU, 2011, Infect. Immun.; PMID: 21896773).


  Disrupted: Mutant parasite with a disrupted gene
Details of the target gene
Gene Model of Rodent Parasite PBANKA_0701900
Gene Model P. falciparum ortholog PF3D7_0828800
Gene productGPI-anchored micronemal antigen
Gene product: Alternative namePSOP9, putative secreted ookinete protein 9; GAMA
Details of the genetic modification
Inducable system usedNo
Additional remarks inducable system
Type of plasmid/construct usedPlasmid double cross-over
PlasmoGEM (Sanger) construct/vector usedNo
Modified PlasmoGEM construct/vector usedNo
Plasmid/construct map
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Plasmid/construct sequence
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AGCTTGCATGCCTGCAGGTCAACAATAAATAATAAATAAATATTGTGGAAATAAAATAAC
ATATAATTATTTTTAATACATTGATTTCCCTTTTATTTTTTTAAATTTCATTGATATAAA
AATATATAATAATAACATATATGATTTCAAATTAATCTTTTCAAAAATGGTGTTTATTTT
TGTATGTTTGTGTATGAATTAATCACATAACACATCTATTAAATTGAGTTGGTAATATAG
ACACAAATAAATATATATATTTTTATAGCTTAAAAGTGTGTTATGAATATTTTAAGCATA
TTTTCTTTTTCTTTGGATTGTGTAAAATGAACTCATATAATGCGTTTTTTTGTTTTTGTT
ATTTTGTCATTTTGTTATTTTGCTATTTTATGGATTAATTTTTGTTTATAAAATGGGAAA
TAATTTTAACATATTTAAATAAATGGAGAAAAAATATAAAATAATTATAAAAAAAAGTTA
ATACACATTTTTTCCTGTTATAGACCTTATATTTATTTATCCATATATATATATATATAT
ATATATATATATATATACATACCAAGTGAATTAAGAGGAAAGCTAATTTATTATTCAGAA
TAATATATGAACTATATATAATTTTTATTATTTTGGTGTATATTAATCTGTCTATATGCA
TACATGCAATAATTTATCGACTTATATATCAAATAACATAAAATAGAAGTGTTTTAAATT
ATGGATATATGCTCAATATTCATTTTTTTTAATAAGTTAGCTATATTTAAATTATACATT
TTATATATGGTCTCTTTTTTTTTTAAATATTATTTAAGTGATCATGAAAATATAAATAAT
TTTTTTTTATTTAATATCCTTTTGCTTGCATGTGGTAAATGGAAATTTGGATGTGTTTTG
AARGTTCGGATATAGTTGTATGGACATATAATATATTTTGTGAAAAATTGGTTTTATGTT
TATACTTATGCCAATACTTTTTGAGTAAAACAAAGCAAGTGCTTATAAATAATTAAAGCC
AATTTTATAATATATATTTTTTTATTTAATTTGAATTTAGTAGTATAATTTTTTATGGTA
AGTGCTCAAAGAGAGTTGCTTATAAAGTATGGTTTGTTTCTTTTTCGCCATTTTGAATTA
CACATTAAAAATATATAGATACATATATTATAATATGAAATCATTAATAATTTAGGGAAA
TTCTACAAATTTAAAAACGAATAAAATAATTGTTTTTCATCATGCCATAACACAATATTG
ATATATACATGTACAAACATTTTTTTTATTTGGAAAATATAAATTATATAAAAAAAAATG
TATAGTATACAAAATGAGCATATTCACACGGGGTGGACGTTCATTTTTTCATTTTTCCCC
TGTTTTTTATGAGTATATGATAAAATTTTATGAACATTTACACAAAATGAAAATGGATAT
ATAGGAAAAATGGAGCGGTATTTCATTTATCTTTGATTGTCATTTGGATATTATATTACC
YTGGGTAGGCAATTAAAAATGTTAAATAACAATTTAAGGAAATTATATTTTATATATTAA
AATTAACACTGTATTATATGATTCGCTTATAAAAGCCACTCTTTCCCCATGCAAAGCTGT
TTAATATCAATTTTAACAAATTACACACATGTTAATATATTTATATATATAATTTATATA
TTTATAATTTATATATTTATATTTTTATTATTTATATATTTATTATTTATTGTGTGTGTC
AATTCGGGTAGGATATACCTCTTTTTTATTGTTTAAAGCGATTTGTATTCTAAAATATAA
AGRATTTGAAAAAGAGAAAGATAGAATATGATCCCATCATATATAGCCCTATAATTTTTA
TTTAGCAGCGAATTAATTTTTCTATTAAGTTTATGTGTAATTAAAATAACGGAATATATA
TAATACAATAAAAAAGTGCATAAATTAAAATTTTTTCAATTAAATTTTTTTTTTTAAGGG
GTTATATAATATTAAATATATAAAATACGATTATATATTTTTGCTACAATTTTTTATATT
AAGATATAAATAGTAAATAAATGGTATTATATGGCATGTAATATATAAATTTTTTCCAAT
TTTTATTTTATATACACTTTTCCTTTTTTTGTCATAAAACTTAAACAATTTACACATTCA
TTTTAAAAATTGACTATTTGTTTCAACATTTTTTGAGTTTCCGTTTTATAATAGTATTTT
CATTTGTATATTGCTTATATATATAAATACACACCTAAATGTTACAAAGGATCAATGCAT
AAACCGGTGTGTCTGGTCGTCGCGATGACCCCCAAGAGGGGCATCGGCATCAACAACGGC
CTCCCGTGGCCCCACTTGACCACAGATTTCAAACACTTTTCTCGTGTGACAAAAACGACG
CCCGAAGAAGCCAGTCGCCTGAACGGGTGGCTTCCCAGGAAATTTGCAAAGACGGGCGAC
TCTGGACTTCCCTCTCCATCAGTCGGCAAGAGATTCAACGCCGTTGTCATGGGACGGAAA
ACCTGGGAAAGCATGCCTCGAAAGTTTAGACCCCTCGTGGACAGATTGAACATCGTCGTT
TCCTCTTCCCTCAAAGAAGAAGACATTGCGGCGGAGAAGCCTCAAGCTGAAGGCCAGCAG
CGCGTCCGAGTCTGTGCTTCACTCCCAGCAGCTCTCAGCCTTCTGGAGGAAGAGTACAAG
GATTCTGTCGACCAGATTTTTGTCGTGGGAGGAGCGGGACTGTACGAGGCAGCGCTGTCT
CTGGGCGTTGCCTCTCACCTGTACATCACGCGTGTAGCCCGCGAGTTTCCGTGCGACGTT
TTCTTCCCTGCGTTCCCCGGAGATGACATTCTTTCAAACAAATCAACTGCTGCGCAGGCT
GCAGCTCCTGCCGAGTCTGTGTTCGTTCCCTTTTGTCCGGAGCTCGGAAGAGAGAAGGAC
AATGAAGCGACGTATCGACCCATCTTCATTTCCAAGACCTTCTCAGACAACGGGGTTCCC
TACGACTTTGTGGTTCTCGAGAAGAGAAGGAAGACTGACGACGCAGCCACTGCGGAACCG
AGCAACGCAATGAGCTCCTTGACGTCCACGAGGGAGACAACTCCCGTGCACGGGTTGCAG
GCTCCTTCTTCGGCCGCAGCCATTGCCCCGGTGTTGGCGTGGATGGACGAAGAAGACCGG
AAAAAACGCGAGCAAAAGGAACTGATTCGGGCCGTTCCGCATGTTCACTTTAGAGGCCAT
GAAGAGTTCCAGTACCTTGATCTCATTGCCGACATTATTAACAATGGAAGGACAATGGAT
GACCGAACGGGCGTTGGTGTCATCTCCAAATTCGGCTGCACTATGCGCTACTCGCTGGAT
CAGGCCTTTCCACTTCTCACCACAAAGCGTGTGTTCTGGAAAGGGGTCCTCGAAGAGTTG
CTGTGGTTCATTCGCGGCGACACGAACGCAAACCATCTTTCTGAGAAGGGCGTGAAGATC
TGGGACAAGAATGTGACACGCGAGTTCCTCGATTCGCGCAATCTCCCCCACCGAGAGGTC
GGAGACATCGGCCCGGGCTACGGCTTCCAGTGGAGACACTTCGGCGCGGCATACAAAGAC
ATGCACACAGACTACACAGGGCAGGGCGTCGACCAGCTGAAGAATGTGATCCAGATGCTG
AGAACGAATCCAACAGATCGTCGCATGCTCATGACTGCCTGGAATCCTGCAGCGCTGGAC
GAAATGGCGCTGCCGCCTTGTCACTTGTTGTGCCAGTTCTACGTGAACGACCAGAAGGAG
CTGTCGTGCATCATGTATCAGCGGTCGTGCGATGTCGGCCTCGGCGTCCCCTTCAACATC
GCTTCCTATTCGCTTTTGACGCTCATGGTTGCACACGTCTGCAACCTAAAACCTAAGGAG
TTCATTCACTTCATGGGGAACACGCATGTCTACACGAACCATGTCGAGGCTTTAAAAGAG
CAGCTGCGGAGAGAACCGAGACCGTTCCCCATTGTGAACATCCTCAACAAGGAACGCATC
AAGGAAATCGACGATTTCACCGCCGAGGATTTTGAGGTCGTGGGCTACGTCCCGCACGGA
CGAATCCAGATGGAGATGGCTGTCTAGCGGAAATACAGAAGCTAGCTTTGATCCCGTTTT
TCTTACTTATATATTTATACCAATTGATTGTATTTATAACTGTAAAAATGTGTATGTTGT
GTGCATATTTTTTTTTGTGCATGCACATGCATGTAAATAGCTAAAATTATGAACATTTTA
TTTTTTGTTCAGAAAAAAAAAACTTTACACACATAAAATGGCTAGTATGAATAGCCATAT
TTTATATAAATTAAATCCTATGAATTTATGACCATATTAAAAATTTAGATATTTATGGAA
CATAATATGTTTGAAACAATAAGACAAAATTATTATTATTATTATTATTTTTACTGTTAT
AATTATGTTGTCTCTTCAATGATTCATAAATAGTTGGACTTGATTTTTAAAATGTTTATA
ATATGATTAGCATAGTTAAATAAAAAAAGTTGAAAAATTAAAAAAAAACATATAAACACA
AATGATGTTTTTTCCTTCAATTTCGATATCGAATTCGCAGTAGTGAGTGATCCAAATGGT
GAGGAAACTGATGCTATAATAAACAATAATGCCGATTCCGTTAATCTATCAGCATTATCA
ACGGATATAGAACAAACTTTTAAGACTTTAAGTTCTACGGGAACAAGTTTTTCTTCTAGT
GTTTCTTATGCCTTATTCGCTTTGCTTTCTATTTTTTTATATTTCATTTAATTAGGTAAA
TTTAAATTTTATTTATTAGCGTTTATTTTACTATTTTTATTTTTTTGTATCATGCTATTT
ATTACATACTATTATTATATTGCTTTATTTTATATTTTGCATATTAAACCTATTGAATTT
ATTCGAAACTAGTTACATGTAAGAAATTAATATACTATTTAAATTGCTGTTTGTTTTGTA
TCATGCTTAATTGTTGCAAAATTACACAATCCGCTATTTATTTGTTTTACCATCCTTTTA
TTTCTATAAAATTAATCCAAACATATGTTATTTCGTATTTTATTTTTTCGTTTTATTTTT
TCATTTATTTTTCGTTTTTCTTTGTCACGCCTGAGGCTTTTATTCACATCCATATGTCTA
GAGCGGCCGCCACCGCGGTGGAGCTCCAATTCGCCCTATAGTGAGTCGTATTACAATTCA
CTGGCCGTCGTTTTACAACGTCGTGACTGGGAAAACCCTGGCGTTACCCAACTTAATCGC
CTTGCAGCACATCCCCCTTTCGCCAGCTGGCGTAATAGCGAAGAGGCCCGCACCGATCGC
CCTTCCCAACAGTTGCGCAGCCTGAATGGCGAATGGGACGCGCCCTGTAGCGGCGCATTA
AGCGCGGCGGGTGTGGTGGTTACGCGCAGCGTGACCGCTACACTTGCCAGCGCCCTAGCG
CCCGCTCCTTTCGCTTTCTTCCCTTCCTTTCTCGCCACGTTCGCCGGCTTTCCCCGTCAA
GCTCTAAATCGGGGGCTCCCTTTAGGGTTCCGATTTAGTGCTTTACGGCACCTCGACCCC
AAAAAACTTGATTAGGGTGATGGTTCACGTAGTGGGCCATCGCCCTGATAGACGGTTTTT
CGCCCTTTGACGTTGGAGTCCACGTTCTTTAATAGTGGACTCTTGTTCCAAACTGGAACA
ACACTCAACCCTATCTCGGTCTATTCTTTTGATTTATAAGGGATTTTGCCGATTTCGGCC
TATTGGTTAAAAAATGAGCTGATTTAACAAAAATTTAACGCGAATTTTAACAAAATATTA
ACGCTTACAATTTAGGTGGCACTTTTCGGGGAAATGTGCGCGGAACCCCTATTTGTTTAT
TTTTCTAAATACATTCAAATATGTATCCGCTCATGAGACAATAACCCTGATAAATGCTTC
AATAATATTGAAAAAGGAAGAGTATGAGTATTCAACATTTCCGTGTCGCCCTTATTCCCT
TTTTTGCGGCATTTTGCCTTCCTGTTTTTGCTCACCCAGAAACGCTGGTGAAAGTAAAAG
ATGCTGAAGATCAGTTGGGTGCACGAGTGGGTTACATCGAACTGGATCTCAACAGCGGTA
AGATCCTTGAGAGTTTTCGCCCCGAAGAACGTTTTCCAATGATGAGCACTTTTAAAGTTC
TGCTATGTGGCGCGGTATTATCCCGTATTGACGCCGGGCAAGAGCAACTCGGTCGCCGCA
TACACTATTCTCAGAATGACTTGGTTGAGTACTCACCAGTCACAGAAAAGCATCTTACGG
ATGGCATGACAGTAAGAGAATTATGCAGTGCTGCCATAACCATGAGTGATAACACTGCGG
CCAACTTACTTCTGACAACGATCGGAGGACCGAAGGAGCTAACCGCTTTTTTGCACAACA
TGGGGGATCATGTAACTCGCCTTGATCGTTGGGAACCGGAGCTGAATGAAGCCATACCAA
ACGACGAGCGTGACACCACGATGCCTGTAGCAATGGCAACAACGTTGCGCAAACTATTAA
CTGGCGAACTACTTACTCTAGCTTCCCGGCAACAATTAATAGACTGGATGGAGGCGGATA
AAGTTGCAGGACCACTTCTGCGCTCGGCCCTTCCGGCTGGCTGGTTTATTGCTGATAAAT
CTGGAGCCGGTGAGCGTGGGTCTCGCGGTATCATTGCAGCACTGGGGCCAGATGGTAAGC
CCTCCCGTATCGTAGTTATCTACACGACGGGGAGTCAGGCAACTATGGATGAACGAAATA
GACAGATCGCTGAGATAGGTGCCTCACTGATTAAGCATTGGTAACTGTCAGACCAAGTTT
ACTCATATATACTTTAGATTGATTTAAAACTTCATTTTTAATTTAAAAGGATCTAGGTGA
AGATCCTTTTTGATAATCTCATGACCAAAATCCCTTAACGTGAGTTTTCGTTCCACTGAG
CGTCAGACCCCGTAGAAAAGATCAAAGGATCTTCTTGAGATCCTTTTTTTCTGCGCGTAA
TCTGCTGCTTGCAAACAAAAAAACCACCGCTACCAGCGGTGGTTTGTTTGCCGGATCAAG
AGCTACCAACTCTTTTTCCGAAGGTAACTGGCTTCAGCAGAGCGCAGATACCAAATACTG
TCCTTCTAGTGTAGCCGTAGTTAGGCCACCACTTCAAGAACTCTGTAGCACCGCCTACAT
ACCTCGCTCTGCTAATCCTGTTACCAGTGGCTGCTGCCAGTGGCGATAAGTCGTGTCTTA
CCGGGTTGGACTCAAGACGATAGTTACCGGATAAGGCGCAGCGGTCGGGCTGAACGGGGG
GTTCGTGCACACAGCCCAGCTTGGAGCGAACGACCTACACCGAACTGAGATACCTACAGC
GTGAGCTATGAGAAAGCGCCACGCTTCCCGAAGGGAGAAAGGCGGACAGGTATCCGGTAA
GCGGCAGGGTCGGAACAGGAGAGCGCACGAGGGAGCTTCCAGGGGGAAACGCCTGGTATC
TTTATAGTCCTGTCGGGTTTCGCCACCTCTGACTTGAGCGTCGATTTTTGTGATGCTCGT
CAGGGGGGCGGAGCCTATGGAAAAACGCCAGCAACGCGGCCTTTTTACGGTTCCTGGCCT
TTTGCTGGCCTTTTGCTCACATGTTCTTTCCTGCGTTATCCCCTGATTCTGTGGATAACC
GTATTACCGCCTTTGAGTGAGCTGATACCGCTCGCCGCAGCCGAACGACCGAGCGCAGCG
AGTCAGTGAGCGAGGAAGCGGAAGAGCGCCCAATACGCAAACCGCCTCTCCCCGCGCGTT
GGCCGATTCATTAATGCAGCTGGCACGACAGGTTTCCCGACTGGAAAGCGGGCAGTGAGC
GCAACGCAATTAATGTGAGTTAGCTCACTCATTAGGCACCCCAGGCTTTACACTTTATGC
TTCCGGCTCGTATGTTGTGTGGAATTGTGAGCGGATAACAATTTCACACAGGAAACAGCT
ATGACCATGATTACGCCAAGCTCGAAATTAACCCTCACTAAAGGGAACAAAAGCTGGTAC
CGATGATTATATATGTGAACCAGTAAAATATAATAACATATGTATATATGAAAAAGACAA
AACCCCTTTAACATTTCAATGTACAAGTGAGAAATATGAAAACTTAATTCATCGATTTAC
TTATAAAAAATTGTGCCGTTCAAAAATAACCTATTGTAATATTTTATTAAAATCGTTTAT
TGATAAGAATAAAGAAAGCAATACATTTGATACTATAATAAATAATTACAACGTTCTATT
AAGCTGTGTTGATAGTGATTTAAAAGCAATTTATAAAGAATCAATAAGTTTACTTTCCGA
TTTAAGGGATTCAATTATAGATATAACAGAAAAATTATGGTCTAAAAATATTTCAGATGT
TTTTAAAAAACGAGAACAATTAATTACAGGAATATTTTGTGAACTAAGAAATGGAAATAC
ATCGAATTTAATATCTCATGGTTTATCATATGAAAATTTTGGTATTTTGAAAATTAATAA
TGAAAAATTATTAAATCAGGCATTTGATGCATTCTCGGAATACTATTATTATTTTCCATT
ATTTGCAATTAAGCTGCTGGAAAAAGGGGGATTTTTAGAAAGACTAGTATCGATTCACGC
AAATTTAACAAATTATAGAGCTAAAAATATCATCAAAAAAATTAATGATAAATCGAGAAA
TGAAGTTTTAAGTAATGATGATTTGTTCACAAATTTAAACAATTATAAACACCATAACCA
GAAAAATACAAATTCGTTCATTAACATAACTGGAACAATTACAGAAGACAATTTAGTCGA
AGGTATTAACGATTTTAATAAAATAGATTCCAACTTACGAAATGATTCAACCACATCTAT
GGAATCAAAAAATACAAATATATTACCGCCAAAGGACACAAACACCAATAACCTAGATAA
TACAAATTTAAGTAATCCATTATCTTCCCCAGAACTATTAAAAACAAAAGATGTTTCTGA
ATTAGTAAAAGATATGATAAAA
Restriction sites to linearize plasmid Asp718I/XbaI
Partial or complete disruption of the geneUnknown
Additional remarks partial/complete disruption
Selectable marker used to select the mutant parasitetgdhfr
Promoter of the selectable markerpbdhfr
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 1GCCGGTACCGATGATTATATATGTGAACCAG
Additional information primer 1F1 primer
Sequence Primer 2CAATGTTTAAGCTTTTTATCATATC
Additional information primer 2R1 primer
Sequence Primer 3GCCGAATTCGCAGTAGTGAGTGATCCAAATGGTG
Additional information primer 3F2 primer
Sequence Primer 4GCCTCTAGACATATGGATGTGAATAAAAGCCTC
Additional information primer 4R2 primer
Sequence Primer 5
Additional information primer 5
Sequence Primer 6
Additional information primer 6