Primase-polymerases are a functionally diverse superfamily of replication and repair enzymes [PDF]
Until relatively recently, DNA primases were viewed simply as a class of proteins that synthesize short RNA primers requisite for the initiation of DNA replication.
Aidan J. Doherty+17 more
core +1 more source
Summary: Canonical microRNA (miRNA) hairpins are processed by the RNase III enzymes Drosha and Dicer into ∼22 nt RNAs loaded into an Argonaute (Ago) effector.
Seungjae Lee+10 more
doaj
The emergence and spread of antibiotic resistance among Acinetobacter spp. have been investigated extensively. Most studies focused on the multiple antibiotic resistance genes located on plasmids or genomic resistance islands.
Gang Zhang+7 more
doaj +1 more source
Solution, solid-phase, and fluorous-phase synthesis of carbohydrates and production of carbohydrate microarrays [PDF]
This dissertation focuses on two specific aspects of the chemistry of carbohydrates. The first is the solid- and fluorous-phase synthesis of oligosaccharides and their use in forming microarrays.
Ko, Kwang-Seuk
core +2 more sources
Amikacin: Uses, Resistance, and Prospects for Inhibition
Aminoglycosides are a group of antibiotics used since the 1940s to primarily treat a broad spectrum of bacterial infections. The primary resistance mechanism against these antibiotics is enzymatic modification by aminoglycoside-modifying enzymes that are
Maria S. Ramirez, Marcelo E. Tolmasky
doaj +1 more source
Unusual evolution of a catalytic core element in CCA-adding enzymes [PDF]
CCA-adding enzymes are polymerases existing in two distinct enzyme classes that both synthesize the C-C-A triplet at tRNA 3′-ends. Class II enzymes (found in bacteria and eukaryotes) carry a flexible loop in their catalytic core required for switching ...
Betat, Heike+6 more
core +2 more sources
Discovery of Three Toxic Proteins of Klebsiella Phage fHe-Kpn01 [PDF]
The lytic phage, fHe-Kpn01 was isolated from sewage water using an extended-spectrum beta-lactamase-producing strain of Klebsiella pneumoniae as a host. The genome is 43,329 bp in size and contains direct terminal repeats of 222 bp.
Pajunen, Maria I.+4 more
core +3 more sources
Bacteriophage antidefense genes that neutralize TIR and STING immune responses
Summary: Programmed cell suicide of infected bacteria, known as abortive infection (Abi), serves as an immune defense strategy to prevent the propagation of bacteriophage viruses.
Peiyin Ho+5 more
doaj
Biophysical and enzymatic properties of aminoglycoside adenylyltransferase AadA6 from Pseudomonas aeruginosa [PDF]
The gene coding for the aminoglycoside adenylyltransferase (aadA6) from a clinical isolate of Pseudomonas aeruginosa was cloned and expressed in Escherichia coli strain BL21(DE3)pLysS.
Akdemir, G.+9 more
core +2 more sources
Emergence of five kinds of aminoglycoside-modifying enzyme genes simultaneously in a strain of multidrugresistant Escherichia coli in China [PDF]
A strain of Escherichia coli was positive for 5 aminoglycoside modifying enzyme genes (aac(3)-I, aac(6′)-Ib-cr, ant(3′)-1, aadA5, and aph(3′)-I) in PCR assays.
Wang-Sheng, Z.+2 more
core +1 more source