WebMar 1, 2024 · Here, we identified a small cryptic plasmid (designated pAhX22) in A. hydrophila strain X22. pAhX22 was used as backbone for the construction of a new shuttle vector, pAEsv-1, for Escherichia coli and A. hydrophila. The gfp gene was successfully stably expressed in A. hydrophila X2 using pAEsv-1. WebThe cryptic plasmid, pWV01, exhibits broad host range but is unstable in many species. The ORF D, and inverted repeats IV, V and VI were deleted from its plasmid origin; terminators t0 and T1...
Cryptic plasmids EXAMIANS
WebJan 8, 2024 · Plasmid:chromosome ratio Cohort 1 The tPCr varied from 1 to 677. The majority of samples (217; 57%) contained ≤ 18 plasmids per chromosome, comparable … birch drive chatham
National Center for Biotechnology Information
WebThe first includes hybrid plasmids constructed from native Z. mobilis plasmids and an E. coli vector plasmid. This construct is necessary because most Z. mobilis strains contain cryptic plasmids. The second contains non-conjugative plasmids with a broad host range. Some plasmids, however, have no observable effect on the phenotype of the host cell or its benefit to the host cells cannot be determined, and these plasmids are called cryptic plasmids. Naturally occurring plasmids vary greatly in their physical properties. See more A plasmid is a small, extrachromosomal DNA molecule within a cell that is physically separated from chromosomal DNA and can replicate independently. They are most commonly found as small circular, double … See more Plasmids may be classified in a number of ways. Plasmids can be broadly classified into conjugative plasmids and non-conjugative plasmids. Conjugative plasmids contain a set of transfer genes which promote sexual conjugation between different … See more The term episome was introduced by François Jacob and Élie Wollman in 1958 to refer to extra-chromosomal genetic material that may … See more Some plasmids or microbial hosts include an addiction system or postsegregational killing system (PSK), such as the hok/sok (host … See more The term plasmid was introduced in 1952 by the American molecular biologist Joshua Lederberg to refer to "any extrachromosomal hereditary determinant." The … See more In order for plasmids to replicate independently within a cell, they must possess a stretch of DNA that can act as an origin of replication. The self-replicating unit, in this case, the plasmid, is called a replicon. A typical bacterial replicon may consist of a number … See more Artificially constructed plasmids may be used as vectors in genetic engineering. These plasmids serve as important tools in genetics and biotechnology labs, where they are commonly … See more WebFeb 10, 2024 · For genetic complementation and ectopic gene expression in this bacterium, scientists currently rely on only shuttle plasmids derived from the cryptic plasmid pWH1277 originally isolated from A. calcoaceticus . Replication of these plasmids in Escherichia coli was achieved by incorporating such origin of replication as the ColE1 . These ... birch drive cambuslang