Inteins are intervening polypeptides that catalyze their own removal from flanking exteins, concomitant to the ligation of the exteins. The intein that interrupts the DP2 (large) subunit of DNA polymerase II from Methanoculleus marisnigri (Mma) can promote protein splicing. However, protein splicing can be prevented or reduced by overexpression under nonreducing conditions because of the format...

The strategic incorporation of internal Lewis acids onto urea scaffolds gives rise to a family of tunable hydrogen bond donor catalysts. The nature of the Lewis acid and associated ligands affects the urea polarization, acidity, and activity in reactions of nitrocyclopropane carboxylates and nitrodiazoesters.

ABSTRACT The purpose of this study was to identify the relationship between inseminator characteristics (internal and external) success AI in Sawahlunto City. objects research observation are all inseminators data were analyzed with simultaneous F test see effect variables simultaneously Partial T Test each variable. results found that artificial insemination City not very good, where an averag...

To upgrade the performance of urea-formaldehyde (UF) resin bonded particleboards, melamine modified urea-formaldehyde (MUF) resins based on strong acidic pH catalyzed UF polymers were investigated. The study was conducted in a series of two experiments: 1) formulation of MUF resins based on a UF polymer catalyzed with strong acidic pH and 2) determination of the effects of increased melamine co...

This research was conducted to determine whether gold and cryptocurrency (i.e., Bitcoin) can be used as safe haven assets for oil, wheat, stock index (SI), government bond (GB), Islamic (IS), (IB) during the Russia-Ukraine war. We panel quantile regression by utilizing extreme lower quantiles 1%, 2.5%, 5%). It will only recognized a asset if it is negatively correlated with another adverse shoc...

Background and Aim: The aim of this study was to evaluate the micro-shear bond strength of an indirect composite resin to three different types of cores. Materials and Methods: In this in-vitro study, 14 blocks (5×5×2 mm) were designed and milled by computer from cobalt-chromium (Co-Cr) alloy, zirconia, and polyether ether ketone (PEEK). Each sample was treated according to the manufacturer’s ...

Streptococcus pyogenes and other Gram-positive bacterial pathogens present long macromolecular filaments known as pili on their surface that mediate adhesion and colonization. These pili are covalent polymers, assembled by sortases. Typically, they comprise a putative adhesin at their tip, a backbone subunit present in multiple copies and a basal subunit that is covalently anchored to the pepti...

Traditional C-H bond activation by a concerted metalation-deprotonation (CMD) mechanism involves precoordination of the C-H bond followed by deprotonation from an internal base. Reported herein is a "through-arene" activation of an uncoordinated benzylic C-H bond that is 6 bonds away from a Rh(III) ion. The mechanism, which was investigated by experimental and DFT studies, proceeds through a de...

Abstract Changes in pineapple storage temperature accelerate the increase internal browning (IB) incidence. This study aims for postharvest applications with changes affecting IB incidence and severity. research was conducted on ‘GP3’ ‘MD2’ clones when they were ripe export. The experimental a completely randomized design of temperatures (T1: at 7°C 30 days T2: 28 followed by 16°C 2 days), (‘GP...