ATPase mechanism of the 5'-3' DNA helicase, RecD2: evidence for a pre-hydrolysis conformation change [PDF]
The superfamily 1 helicase, RecD2, is a monomeric, bacterial enzyme with a role in DNA repair, but with 5'-3' activity unlike most enzymes from this superfamily. Rate constants were determined for steps within the ATPase cycle of RecD2 in the presence of
Bae +34 more
core +1 more source
Sensing of endogenous nucleic acids by ZBP1 induces keratinocyte necroptosis and skin inflammation [PDF]
Aberrant detection of endogenous nucleic acids by the immune system can cause inflammatory disease. The scaffold function of the signaling kinase RIPK1 limits spontaneous activation of the nucleic acid sensor ZBP1.
De Munck, Jolien +12 more
core +2 more sources
The conformation of single‐stranded nucleic acids [PDF]
Conformational analyses using the single‐strand‐specific nuclease from mung bean and restriction endonucleases have been performed on a series of DNA fragments related to the sequence of the yeast initiator tRNAMet. Mung bean nuclease cleaves DNA fragments exclusively in some, but not all, single‐stranded regions as predicted by RNA secondary rules ...
J, Paquette +4 more
openaire +2 more sources
A Chimeric DNA/RNA Antiparallel Quadruplex with Improved Stability
Nucleic acid quadruplexes are proposed to play a role in the regulation of gene expression, are often present in aptamers selected for specific binding functions and have potential applications in medicine and biotechnology.
Elaina P. Boyle +3 more
doaj +1 more source
Protease Cleavage Leads to Formation of Mature Trimer Interface in HIV-1 Capsid [PDF]
During retrovirus particle maturation, the assembled Gag polyprotein is cleaved by the viral protease into matrix (MA), capsid (CA), and nucleocapsid (NC) proteins.
Angela M. Gronenborn +10 more
core +4 more sources
Conformation of nucleic acids and the analysis of the hypochromic effect [PDF]
The spectra of two double-helical RNA species isolated from virus-like particles found in the mycelium of Penicillium chrysogenum were measured at about 25 degrees C, and at 95 degrees C after denaturation to a single-stranded form, and compared with the spectrum of the equivalent mixture of nucleotides.
openaire +2 more sources
Coarse Graining RNA Nanostructures for Molecular Dynamics Simulations [PDF]
A series of coarse-grained models have been developed for the study of the molecular dynamics of RNA nanostructures. The models in the series have one to three beads per nucleotide and include different amounts of detailed structural information.
Bruce A Shapiro +6 more
core +3 more sources
Atypical response regulator ChxR from Chlamydia trachomatis is structurally poised for DNA binding. [PDF]
ChxR is an atypical two-component signal transduction response regulator (RR) of the OmpR/PhoB subfamily encoded by the obligate intracellular bacterial pathogen Chlamydia trachomatis. Despite structural homology within both receiver and effector domains
Michael L Barta +5 more
doaj +1 more source
Physicochemical analysis of rotavirus segment 11 supports a 'modified panhandle' structure and not the predicted alternative tRNA-like structure (TRLS) [PDF]
.Rotaviruses are a major cause of acute gastroenteritis, which is often fatal in infants. The viral genome consists of 11 double-stranded RNA segments, but little is known about their cis-acting sequences and structural elements.
A Heerschap +47 more
core +1 more source
Specific RNA sequences regulate functions essential to life. The Trans-Activation Response element (TAR) is an RNA stem–bulge–loop structure involved in several steps of HIV-1 replication.
Alice Sosic +5 more
doaj +1 more source

