High cost of poly-3-hydroxybutyrate production remained a major hindrance for its wide range applications. In the current study poly-3-hydroxybutyrate producing bacteria were isolated from environmental sources. Highest poly-3hydroxybutyrate producing isolate Bacillus cereus PS 10 was investigated for its ability to use wide range of low-cost carbon sources including agro-industrial residues, v...

Most vertebrate mRNAs exit the nucleus with a 200+-residue poly(A) tail and are deadenylated to yield heterogeneous polymers of 50-200 adenosine residues on any given mRNA. We previously reported that Xenopus albumin mRNA and pre-mRNA have an unusually short, discrete 17-residue poly(A) tail and showed that regulation of poly(A) length is controlled independently by two cis-acting poly(A)-limit...

The effect of polyadenylic acid: polyuridylic acid complex (poly A: U) on immunization was investigated in mice vaccinated by killed Brucella melitensis cells suspended in incomplete adjuvant or in saline. Addition of 300 ,ug of poly A:U to vaccines rendered 3 X 108 B. melitensis cells in saline as immunogenic as 3 X 10"1 cells in oil adjuvant against a severe B. abortus challenge. In the mouse...

The RNA.DNA hybrid poly(rA).poly(dT) can adopt two conformations, depending upon its degree of hydration. Fibers yield a conventional A' RNA-like pattern at 79% relative humidity. In contrast, under highly solvated conditions this material yields an x-ray diffraction pattern with striking similarities to that of B DNA and clearly different from the RNA-like diffraction patterns previously obtai...

A series of ABA triblock copolymers, consisting of double-bond-containing poly(phenoxyallene) (PPOA), poly(methyl methacrylate) (PMMA), or poly(butyl acrylate) (PBA) segments, were synthesized by sequential free radical polymerization and atom transfer radical polymerization (ATRP). A new bifunctional initiator bearing azo and halogen-containing ATRP initiating groups was first prepared followe...

on the B-helix transition of poly-L-lysine in sodium 18. Watanabe S and Saito T, A CD study of the role of dodecyl sulfate solution. Biopolymers 14: 1841-1846. metal ions in the conformation of poly(L-Lysine). 1975. Biopolymers 26: 625-632, 1987. 17. Sarker PK and Doty P, The optical rotatory properties 19. Davidson B and Fasman GD, The conformational of the P-configuration in polypeptides and ...

Micelles derived from poly(ε-caprolactone) (PCL) poly(ethylene glycol)(PEG) diblock copolymers (HO-PCLn-b-PEG32-RX, R = -O(CH2)3S(CH2)2-; X = -CO2(-), -SO3(-), -NH3(+)) show corona charge selective degradation catalyzed by P. cepacia lipase isoforms.

Poly-drug use refers to the use of two or more substances at the one time or repeatedly. It is common among both recreational and regular drug users across the world. Poly-drug use is a great contributor to the global number of deaths related to drug overdose. In this case, the likelihood of drug overdose and its pertaining complications in an individual is higher especially when benzodiazepine...

The crystal structure of the synthetic DNA dodecamer CGCATATATGCG has been solved at 2.2-A resolution. Its central 6 base pairs adopt the alternating-B-DNA helix structure proposed nearly a decade ago. This alternating poly(AT) structure contrasts with the four known examples of what can be termed a poly(A) subfamily of B-DNA structures: CGCAAAAAAGCG, CGCAAATTTGCG, CGCGAATTCGCG, and CGCGAATTbrC...

Organometal halide perovskites have emerged as promising next-generation solar cell technologies presenting outstanding efficiencies. However, many questions concerning their working principles remain to be answered. Here, we present a detailed study of hole transfer dynamics into polymeric hole transporting materials (HTMs), poly(triarylamine) (PTAA), poly(3-hexylthiophee-2,5-diyl (P3HT), and ...