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Dynamic epigenetic regulation of gene expression during the life cycle of malaria parasite Plasmodium falciparum

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Dynamic epigenetic regulation of gene expression during the life cycle of malaria parasite Plasmodium falciparum
นักวิจัย : Gupta, Archna P. , Chin, Wai Hoe , Zhu, Lei , Mok, Sachel , Luah, Yen-Hoon , Lim, Eng-How , Bozdech, Zbynek
คำค้น : DRNTU::Science::Biological sciences.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : Deitsch, Kirk
ปีพิมพ์ : 2556
อ้างอิง : Gupta, A. P., Chin, W. H., Zhu, L., Mok, S., Luah, Y.-H., Lim, E.-H., et al. (2013). Dynamic epigenetic regulation of gene expression during the life cycle of malaria parasite plasmodium falciparum. PLoS pathogens, 9(2), e1003170-. , 1553-7366 , http://hdl.handle.net/10220/18291 , http://dx.doi.org/10.1371/journal.ppat.1003170
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : PLoS pathogens
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Epigenetic mechanisms are emerging as one of the major factors of the dynamics of gene expression in the human malaria parasite, Plasmodium falciparum. To elucidate the role of chromatin remodeling in transcriptional regulation associated with the progression of the P. falciparum intraerythrocytic development cycle (IDC), we mapped the temporal pattern of chromosomal association with histone H3 and H4 modifications using ChIP-on-chip. Here, we have generated a broad integrative epigenomic map of twelve histone modifications during the P. falciparum IDC including H4K5ac, H4K8ac, H4K12ac, H4K16ac, H3K9ac, H3K14ac, H3K56ac, H4K20me1, H4K20me3, H3K4me3, H3K79me3 and H4R3me2. While some modifications were found to be associated with the vast majority of the genome and their occupancy was constant, others showed more specific and highly dynamic distribution. Importantly, eight modifications displaying tight correlations with transcript levels showed differential affinity to distinct genomic regions with H4K8ac occupying predominantly promoter regions while others occurred at the 5′ ends of coding sequences. The promoter occupancy of H4K8ac remained unchanged when ectopically inserted at a different locus, indicating the presence of specific DNA elements that recruit histone modifying enzymes regardless of their broad chromatin environment. In addition, we showed the presence of multivalent domains on the genome carrying more than one histone mark, highlighting the importance of combinatorial effects on transcription. Overall, our work portrays a substantial association between chromosomal locations of various epigenetic markers, transcriptional activity and global stage-specific transitions in the epigenome.

บรรณานุกรม :
Gupta, Archna P. , Chin, Wai Hoe , Zhu, Lei , Mok, Sachel , Luah, Yen-Hoon , Lim, Eng-How , Bozdech, Zbynek . (2556). Dynamic epigenetic regulation of gene expression during the life cycle of malaria parasite Plasmodium falciparum.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Gupta, Archna P. , Chin, Wai Hoe , Zhu, Lei , Mok, Sachel , Luah, Yen-Hoon , Lim, Eng-How , Bozdech, Zbynek . 2556. "Dynamic epigenetic regulation of gene expression during the life cycle of malaria parasite Plasmodium falciparum".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Gupta, Archna P. , Chin, Wai Hoe , Zhu, Lei , Mok, Sachel , Luah, Yen-Hoon , Lim, Eng-How , Bozdech, Zbynek . "Dynamic epigenetic regulation of gene expression during the life cycle of malaria parasite Plasmodium falciparum."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2556. Print.
Gupta, Archna P. , Chin, Wai Hoe , Zhu, Lei , Mok, Sachel , Luah, Yen-Hoon , Lim, Eng-How , Bozdech, Zbynek . Dynamic epigenetic regulation of gene expression during the life cycle of malaria parasite Plasmodium falciparum. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2556.