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The gene expression determines cellular homeostasis while spatio-temporal nature of gene expression is regulated by several cis regulatory elements, such as promoter regions which bind to transcription factors. The ever-changing global climatic conditions have raised a necessity to scan heat tolerant livestock especially the riverine buffalo in tropics. The study focuses on characterization of the promoter region of HSP60 and HSP90B1 and looking for the binding sites of transcription factors in Bubalus bubalis and comparison with the nearest relative Bos taurus to gauge the interspecies variations. The results indicated no transcription binding factors in HSP90B1 promoter (550 nucleotides) within the region analyzed except for the Elk-1 and COMP1 in the cattle while promoter region of HSP60 gene (971 nucleotides) varied highly. Nine and seven transcription factor binding sites were specifically unique in Bubalus bubalis and in Bos taurus respectively. Occurrence of 1-Oct, BR-C Z4, Hairy, and HSF was higher in buffalo. Overall, this study provided the framework to explore cis regulatory elements and contributes to decipher the transcriptional regulatory elements of HSP60 and HSP90B1 genes in Bubalus bubalis.
Singh et al. (Mon,) studied this question.