Functional, structural and epitopic prediction of hypothetical proteins of Mycobacterium tuberculosis H37Rv: An in silico approach for prioritizing the targets

Gene ◽  
2016 ◽  
Vol 591 (2) ◽  
pp. 442-455 ◽  
Author(s):  
Md. Amran Gazi ◽  
Mohammad Golam Kibria ◽  
Mustafa Mahfuz ◽  
Md. Rezaul Islam ◽  
Prakash Ghosh ◽  
...  
2013 ◽  
Vol 1 (04) ◽  
pp. 81-88 ◽  
Author(s):  
Zahra M. Al-Khafaji

Tuberculosis is an universal health problem worldwide. In Iraq the problem is aggravated by drug resistance. In Silico studies usually pave the way for more investigations of the real problem .On the other hand Mycobacterium tuberculosis does not lend itself for deep wet lab studies, therefore, In Silico studies must precede many aspects of experimental work. In Silico studies were carried out using most virulent strain and a model of studies M. tuberculosis H37Rv to investigate some of the hypothetical proteins which compromised about 39% of the annotated proteins. The studied Rv hypothetical proteins were distributed among cellular compartment fractions with high existence in the cytoplasmic fraction (about 67%). Major function prediction of these proteins were found in cellular process section using different approaches of predictions .However , some of these proteins were still await to be included in the important databases such as COG and GO which concerned mainly with function annotation.


2019 ◽  
Vol 2 (1) ◽  
pp. 37-48
Author(s):  
Ruswanto Ruswanto

Isoniazid merupakan obat antituberkulosis yang memiliki aktivitas antimikobakterial yang baik yang bekerja secara aktif dengan menghambat biosintesis asam mikolat. Telah dilakukan pengujian In Vitro pada senyawa N’-(4-Methylbenzoyl) Isonicotinohydrazide N’-(4-Chlorobenzoyl) Isonicotinohydrazide dan N’-(3,5-Dinitrobenzoyl) Isonicotinohydrazide terhadap Mycobacterium tuberculosis H37Rv, bakteri gram positif serta bakteri gram negatif dengan menggunakan metode sumuran dan pada pengujian Mycobacterium tuberculosis H37Rv menggunakan metode REMA (Resazurin Microtiter Assay). Didapat nilai MIC terbaik pada senyawa N’-(3,5-Dinitrobenzoyl) Isonicotinohydrazide memiliki potensi tinggi sebagai antibakteri dengan nilai MIC 0,169 ppm terhadap bakteri e.colli. Ketiga senyawa yang diujikan pada  Mycobacterium tuberculosis H37Rv memiliki kemampuan sebagai anti tuberkulosis tetapi isoniazid lebih baik dari senyawa uji. Senyawa N’-(3,5-Dinitrobenzoyl) Isonicotinohydrazide di dockingkan pada reseptor 1KZN memiliki binding affinity yang lebih kecil dibandingkan senyawa pembanding yaitu isoniazid sebesar -6,89 kkal/mol.


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