Ribonucleases (RNases) are ubiquitous enzymes that can detrimentally affect RNA isolation in the laboratory. Many applications such as RT-PCR and in vitro transcription and translation may be affected as well. RNase can renature after autoclaving and is difficult to inactivate. Many RNase inhibitors are available commercially. Promega’s RNasin® Ribonuclease Inhibitor, one of the first introduce...

Human RNase P is implicated in transcription of small non-coding RNA genes by RNA polymerase III (Pol III), but the precise role of this ribonucleoprotein therein remains unknown. We here show that targeted destruction of HeLa nuclear RNase P inhibits transcription of 5S rRNA genes in whole cell extracts, if this precedes the stage of initiation complex formation. Biochemical purification analy...

Abstract The study employed 300 laying hens at 34 weeks of age, divided into 5 treatments with 3 replicates per replication 20 birds each, to determine the impact adding okra powder and vitamins C E (Brown-Lite Lohman) egg broiler diets on certain qualitative features oxidation indicators. were: (T1): control treatment without any addition, (T2) 250 mg vitamin / kg diet, (T3) 200 (T4) 2 gm (T5)...

INTRODUCTION: Late Gadolinium Enhancement (LGE) CMR is the gold standard of imaging irreversible damage in myocardial infarction. However, limitations include invasive contrast administration and sensitivity to accurate choice of Inversion Time (TI). Alternative non-invasive quantitative mapping of the myocardium has been demonstrated to distinguish pathophysiological changes in acute myocardia...

The objective of this study was to investigate the effect of hCG administration 5 days after breeding on plasma progesterone (P4) concentration and reproductive performance of oestrous-induced nulliparous dairy goats. A total of 59 nulliparous goats (36 Alpine and 23 Saanen) received intravaginal sponges with 60 mg medroxyprogesterone acetate for 9 days plus 200 IU equine chorionic gonadotrophi...

Partial penectomy is effective in the treatment of T1 and T2 penile carcinoma with 80% five-year survival rates in the absence of inguinal metastases, and the residual stump is serviceable for upright micturition and sexual function. The use of micrographic surgery first introduced by Mohs in 1941 for small distally located lesions of upto one centimetre diametre achieves results comparable to ...

The backbone dynamics of the uniformly 15N-labeled ribonuclease H (RNase H) domain of human immunodeficiency virus (HIV-1) reverse transcriptase have been investigated using two-dimensional inverse-detected heteronuclear 15N-1HNMR spectroscopy. 15N T1, T2, and nuclear Overhauser enhancement (NOE) data were obtained for 107 out of a total of 134 backbone amide groups. The overall rotational corr...