Fluorescence spectra of TNP-ATP bound to <i>M</i>. <i>leprae</i> HSP18. Sandip Kumar Nandi Ayon Chakraborty Alok Kumar Panda Sougata Sinha Ray Rajiv Kumar Kar Anirban Bhunia Ashis Biswas 10.1371/journal.pntd.0003661.g001 https://plos.figshare.com/articles/figure/_Fluorescence_spectra_of_TNP_ATP_bound_to_M_leprae_HSP18_/1357685 <p><b>(A)</b> Fluorescence emission spectra of TNP-ATP alone (trace 1); TNP-ATP+HSP18 (trace 2); Addition of 0.25 mM ATP to the HSP18-TNP-ATP complex (trace 3). Protein concentration used was 2.5 μM and TNP-ATP concentration was 2.5 μM. Excitation wavelength used was 403 nm and fluorescence emission spectra were recorded from 500–600 nm. <b>(B)</b> Fluorescence titration of 2.5 μM <i>M</i>. <i>leprae</i> HSP18 was carried with varying concentration of TNP-ATP with fluorescence monitored at λ<sub>exc</sub> = 403 nm and λ<sub>em</sub> = 538 nm.</p> 2015-03-26 04:46:04 antigenic proteins act chaperone function heat shock protein Comparative sequence alignment Small Heat Shock Protein HSP 18 Molecular docking studies Mycobacterium leprae bacilli sequence 49 KADSLDIDIE 58 leprae HSP 18 18 kDa antigen ATP triggers exposure leprae HSP 18. ATP perturbs surface plasmon resonance measurement