Genomics

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Dynamics of H3K64 trimethylation on histone core regulates the schizont specific expression of exported proteins in Plasmodium falciparum


ABSTRACT: We identified unconventional histone lysine trimethylation mark in the nucleosome core at H3K64 position in human malaria parasite Plasmodium falciparum. Global ChIP analysis was performed using anti-H3K64me3 specific antibody for three major blood stages, i.e. ring, trophozoite and schizont stages to identify the genomic position of the H3K64me3. The sheared chromatin was prepared from highly synchronous P. falciparum culture and subjected for ChIP followed by library preparation from the ChIP DNA and were subjected to sequencing using the HiSeq Illumina platform. H3K64me3 binding sites were determined after sequence alignment and normalization with input sequence. Interestingly, there was a significant reduction in the number of peaks on different chromosomes during multinucleated schizont stage as compared to ring and trophozoite stage. Collectively, this is first study to show that H3K64me3 function as repressor methyl mark during ring and trophozoite stages to regulate the expression of schizont specific export family of proteins in P. falciparum.

ORGANISM(S): Plasmodium falciparum 3D7

PROVIDER: GSE154651 | GEO | 2020/07/18

REPOSITORIES: GEO

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