What is attB and attP?
The attP site consists of a 234-bp DNA fragment containing five scattered putative Int-binding sites (4) whereas the attB site requires only a 16-bp sequence to be functional. The mv4 minimal attB site is the shortest attB sequence described to date.
What is attP phage?
Notes. In the free phage, the att site is referred to as attP (phage attachment site) while the corresponding site in a host genome is called attB (bacterial attachment site). After integration occurs to create a prophage, these sites are then known as attL (left end of prophage) and attR (right end of prophage).
What is attP sites in Drosophila?
The attP site (5′-GTGCCCCAACTGGGGTAACCTttGAGTTCTCTCAGTTGGGGG-3′) is one of the two target sites of the phiC31:int integrase. phiC31:int mediates recombination between two non-identical target sites, attP and attB, each of which contains a short integration core flanked by imperfect inverted repeats.
What are serine integrases?
Serine integrases are members of the serine recombinase superfamily that catalyze site-specific integration and excision of phage genomes into and out of bacterial host chromosomes [1,2]. A recently proposed model for serine integrase-mediated recombination is shown in Figure 1.
What is ATTB?
attB: Stands for bacterial attachment site which helps in site specific recombination and always attaches with the PCR product. It consist of four homologous core sequence of ~25 bp each, attB1 ACAAGTTTGTACAAAAAAGCAGGCT.
What does ATTB mean?
ATTB
| Acronym | Definition |
|---|---|
| ATTB | Advanced Technology Transit Bus |
| ATTB | Age Tendre et Tête de Bois (French: Tender Age and Wooden Head; online forum) |
| ATTB | Ass to the Blast |
| ATTB | Association pour Techniques Thermiques de Belgique (French: Thermal Technology Association of Belgium) |
What is attB?
What is LoxP site?
LoxP sites are sites recognized by the bacteriophage cre recombinase, which excises sequences lying between two loxP sites leaving behind only one of the two sites.
What is recombinase Class 11?
Recombinases are genetic recombination enzymes. These enzymes catalyse directionally sensitive DNA exchange reactions between short (30–40 nucleotides) target site sequences that are specific to each recombinase. Recombinase in meiosis helps in crossing over between sister chromatids.
Where do loxP sites come from?
The Cre enzyme and the original Lox site called the LoxP sequence are derived from bacteriophage P1. Placing Lox sequences appropriately allows genes to be activated, repressed, or exchanged for other genes.
What does Flox Flox mean?
HTT flox/flox (or HTT Fl/Fl) refers to the idea that the mice mentioned above have a knockin of the HTT gene in which portions of the gene are flanked by two Cre recombinase recognition sites.
What is attL sequence?
The DNA segments flanking the recombination sites are switched, such that after recombination, the att sites are hybrid sequences comprised of sequences donated by each parental vector. For example, attL sites are comprised of sequences from attB and attP sites.
What does recombinase enzyme do?
Recombinases are enzymes that catalyse site-specific recombination events within DNA; for example, genetic recombination during meiosis in which recombination serves to generate new combinations of alleles on chromosomes.
What happens Interkinesis?
During interkinesis, the single spindle of the first meiotic division disassembles and the microtubules reassemble into two new spindles for the second meiotic division. Interkinesis follows telophase I; however, many plants skip telophase I and interkinesis, going immediately into prophase II.