Polynucleotides. VI. Molecular properties and conformation of polyribouridylic acid

Optical, hydrodynamic, and titration properties of polyribouridylic acid (poly U) were investigated in 0.2M Na+, pH 6. Above 15掳C., poly U was shown to be a randomly coiled single chain, devoid of secondary structure. There is no shear ...

EG Richards，CP Flessel，JR Fresco - 《Biopolymers》

Color image encryption by using Arnold transform and color-blend operation in discrete cosine transform domains

A color image encryption algorithm is designed by use of Arnold transform and discrete cosine transform (DCT). The RGB components of the color image are sc...

Z Liu，L Xu，T Liu，... - 《Optics Communications》

Chapter 5 The Role of 3′-5′ Exoribonucleases in RNA Degradation

RNA degradation is a major process controlling RNA levels and plays a central role in cell metabolism. From the labile messenger RNA to the more stable noncoding RNAs (mostly rRNA and tRNA, but also the expanding class of small regulator...

JM Andrade，V Pobre，IJ Silva，... - 《Progress in Molecular Biology & Translational Science》

Biochemical Aspects of Mercaptopurine Inhibition and Resistance

The observed effects of 6-mercaptopurine on purine synthesis can be attributed to inhibition by 6-mercaptopurine ribonucleotide of phosphoribosylamine synt...

RW Brockman - 《Cancer Research》

Lin P.H., Lin-Chao S. 2005 RhlB helicase rather than enolase is the beta-subunit of the Escherichia coli polynucleotide phosphorylase (PNPase)-exoribonucle...

Escherichia coli polynucleotide phosphorylase (PNPase), a protein that has both ribonucleolytic and synthetic capabilities, binds, along with the 48-kDa gl...

PH Lin，S Lin-Chao - 《Proceedings of the National Academy of Sciences》

The role of primer in glycogen biosynthesis in Aerobacter aerogenes.

Tandem enantioselective hydrogenation followed by a hydroformylation–cyclisation sequence leading to cyclic α-amino acids with ee's >95% can be achieved ...

TJ Kindt，HE Conrad - 《Biochemistry》

Nucleic Acids

A nucleic acid hybridization assay involving a labeled probe and formation of a hybrid having epitopes for an antibody reagent. The label provides a detect...

I Tinoco，Jr，DN Holcomb - 《Physical Chemistry》

Polynucleotide Phosphorylase: Anomalous Viscosity Changes Observed during the Polymerization of Nucleoside Diphosphates

Reaction mixtures containing buffer, nucleoside diphosphate, magnesium ion and polynucleotide phosphorylase of Escherichia coli exhibit a high, transient viscosity during polymer synthesis. The magnitude of this viscosity depends on th...

RA Harvey，CS Mclaughlin，M Grunberg - 《Febs Journal》

INCORPORATION OF RADIOACTIVE PURINE AND PYRIMIDINE BASES AND OF THYMIDINE INTO THE DEOXYRIBONUCLEIC ACID OF SALMON MILTS

C14-labeled adenine, guanine and cytosine, and tritiated thymidine were incorporated into the deoxyribonucleic acid of salmon milts, either by injection into the milts of live fish or into excised milts. The amount incorporated was very ...

HLA Tarr - 《Canadian Journal of Biochemistry》

EFFECTS OF SPERMIDINE ON THE RNA POLYMERASE REACTION

Not Available

RI Gumport - 《Annals of the New York Academy of Sciences》