MITOCHONDRIA LOCALIZED TLR ADAPTOR SARM IS PROAPOPTOTIC DURING T-CELL IMMUNE RESPONSE

Ph.DDOCTOR OF PHILOSOPH

In Silico Prediction of Evolutionarily Conserved GC-Rich Elements Associated with Antigenic Proteins of Plasmodium falciparum

The Plasmodium falciparum genome being AT-rich, the presence of GC-rich regions suggests functional significance. Evolution imposes selection pressure to retain functionally important coding and regulatory elements. Hence searching for evolutionarily conserved GC-rich, intergenic regions in an AT-rich genome will help in discovering new coding regions and regulatory elements. We have used elevated GC content in intergenic regions coupled with sequence conservation against P. reichenowi, which is evolutionarily closely related to P. falciparum to identify potential sequences of functional importance. Interestingly, ~30% of the GC-rich, conserved sequences were associated with antigenic proteins encoded by var and rifin genes. The majority of sequences identified in the 5′ UTR of var genes are represented by short expressed sequence tags (ESTs) in cDNA libraries signifying that they are transcribed in the parasite. Additionally, 19 sequences were located in the 3′ UTR of rifins and 4 also have overlapping ESTs. Further analysis showed that several sequences associated with var genes have the capacity to encode small peptides. A previous report has shown that upstream peptides can regulate the expression of var genes hence we propose that these conserved GC-rich sequences may play roles in regulation of gene expression

Beyond TLR Signaling-The Role of SARM in Antiviral Immune Defense, Apoptosis & Development

10.3109/08830185.2015.1065826INTERNATIONAL REVIEWS OF IMMUNOLOGY345432-44

UXT plays dual opposing roles on SARM-induced apoptosis

FEBS LETTERS587203296-330

UXT plays dual opposing roles on SARM-induced apoptosis

10.1016/j.febslet.2013.08.033FEBS Letters587203296-3302FEBL

Targeting of pro-apoptotic TLR adaptor SARM to mitochondria: Definition of the critical region and residues in the signal sequence

10.1042/BJ20111653Biochemical Journal4422263-271BIJO