The ICEfinder online tool allows users to submit a GenBank file containing a nucleotide sequence and its annotation as a query. A FASTA format file of a raw nucleotide sequence is also accepted, which is annotated using our gene annotation tool CDSeasy (12 (link)) and is then used as the input for the following ICE detection. ICEfinder uses the CGView circular genome visualization tool (23 (link)) to display the distribution of the predicted T4SS-type ICEs, IMEs and AICEs in the query bacterial genome. In addition, the ICEfinder has a comparison module (
Integrase
This enzyme catalyzes the insertion of the viral genetic material into the host cell's DNA, enabling the virus to establish a persistent infection.
Researchers studying Integrase aim to understand its structure, function, and mechanisms in order to develop effective antiviral therapies that target this key viral component.
PubCompare.ai's AI-driven comparisons across liteature, pre-prints, and patents can help optimize Integrase research by identifying the best protocols and products, enhancing reproducibility and accurace while empowering researchers to make informed decisions.
Most cited protocols related to «Integrase»
The ICEfinder online tool allows users to submit a GenBank file containing a nucleotide sequence and its annotation as a query. A FASTA format file of a raw nucleotide sequence is also accepted, which is annotated using our gene annotation tool CDSeasy (12 (link)) and is then used as the input for the following ICE detection. ICEfinder uses the CGView circular genome visualization tool (23 (link)) to display the distribution of the predicted T4SS-type ICEs, IMEs and AICEs in the query bacterial genome. In addition, the ICEfinder has a comparison module (
PASTEC classifies TEs by testing all classifications from Wicker's hierarchical TE classification system. Each possible classification is weighted according to the available evidence, with respect to the classification considered. TEs are currently classified to class and order level. PASTEC can also determine whether a TE is complete on the basis of four criteria: sequence coverage for known TEs, profile coverage, presence of terminal repeats for certain classes, presence of a polyA or SSR tail for LINEs and SINEs, and the length of the TEs with respect to expectations for the class concerned.
We designed PASTEC as a modular multi-agent classifier. The system is composed of four types of agents: retrievers, classifiers, filter agents, and a super-agent (
The output can be read by humans and is biologist-friendly. A single line specifies the name of the TE, its length, status, class, order, completeness, confidence index and all the features characterizing it. A status of “potential chimeric” or “OK” is assigned to the TE. If the TE is not considered to be “OK” then users must apply their own expertise. A TE is declared “potential chimeric” when at least two classifications are possible. In this case, PASTEC chooses the best status based on the available evidence, or does not classify the TE if no decision is possible. In this last case, all possible classifications are given (separated by a pipe symbol “|”). We present an example of PASTEC output in
In addition to a custom, self-updating phage sequence library, PHAST also maintains a bacterial sequence library consisting of 1300 non-redundant bacterial genomes/proteomes from all major eubacterial and archaebacterial phyla. This bacterial sequence library contains more than four million annotated or partially annotated protein sequences. Relative to the full GenBank protein sequence library (100+ million sequences), this bacterial-specific library is 25× smaller. This means that PHAST's genome annotation step (see below) can be accomplished 25× faster.
The largest DTR contig we identified from IMG/VR was further annotated to illustrate the type of virus and genome organization represented (IMG ID: 3300025697_____Ga0208769_1000001). Coding sequence prediction and functional annotations were obtained from IMG35 (link). Annotation for virus hallmark genes including a terminase large subunit (TerL) and major capsid protein were confirmed via HHPred v.3.2.0 (ref. 62 (link)) (databases included PDB 70_8, SCOPe70 2.07, Pfam-A 32.0 and CDD 3.18, score >98). A circular genome map was drawn with CGView63 (link). To place this contig in an evolutionary context, we built a TerL phylogeny including the most closely related sequences from a global search for large phages42 (link). The TerL amino acid sequence from the DTR contig was compared to all TerL sequences from the ‘huge phage’ dataset via blastp (≤1 × 10–5, score ≥50) to identify the 30 most similar sequences (sorted based on blastp bit-score). These reference sequences and DTR contigs were aligned with MAFFT v.7.407 (ref. 64 (link)) using default parameters, the alignment automatically cleaned with trimAL v.1.4.rev15 with the option ‘--gappyout’65 (link) and a phylogeny built with IQ-Tree v.1.5.5, with default model selection (optimal model suggested: LG+R4)66 (link). The resulting tree was visualized with iToL67 (link).
Most recents protocols related to «Integrase»
Example 37
Structural comparison between mouse Numblike and its mammalian Numb homologues and construction of integrase-deficient, transgene expressing lentivectors.
assay for the detection of HIV-1 integrase strand transfer (ST) inhibitors
was adapted from previously described methods.21 (link) A double-stranded biotinylated donor DNA, corresponding
to the HIV U5 viral DNA end, was added to the wells of Streptavidin-coated
96-well microtiter plates (R&D systems). Following a 1 h incubation
at r.t. and three wash steps with PBS, purified recombinant integrase
(1 μM) was assembled using DTT (dithiothreitol, 1 M) onto the
preprocessed donor DNA through incubation for 30 min at 22 °C.
After the wash step, the test compounds and a positive control inhibitor
(Raltegravir, Merck) were added into individual wells at a final concentration
of 10 μM. The microtiter plates were incubated for 30 min at
37 °C and washed. The strand transfer reaction was initiated
through the addition of FITC-labeled target dsDNA (5′-TGACCAAGGGCTAATTCACT-FITC-3′
and 5′-AGTGAATTAGCCCTTGGTCA-FITC-3′).
The plates were incubated for a period of 1 h at 37 °C followed
by washing as before. An AP (Alkaline S2 phosphatase)-conjugated anti-FITC
secondary antibody (Sigma) was added and the plates were washed. The
chromogenic substrate (BluePhos, KPL) was added to allow for photometric
measurement at 620 nm using a microplate reader (xMark, Biorad). Percentage
inhibition was calculated utilizing the formula: where A620(Comp) = Absorbance at 620 nm with compounds, A620_No_integrase_control = Absorbance at 620 nm containing no enzyme, and A620_No_inhibitor_control = Absorbance at 620 nm containing
no inhibitor. All inhibition values are the average of triplicate
experiments.
Top products related to «Integrase»
More about "Integrase"
This process is essential for the virus to establish a persistent infection.
Researchers studying Integrase aim to understand its structure, function, and mechanisms in order to develop effective antiviral therapies that target this key viral component.
Related terms and concepts include ΦC-31 integrase, which is a type of integrase used in transgenesis procedures, and PhiC31 integrase-mediated transgenesis, a technique that utilizes this enzyme for genetic modification.
Other relevant tools and technologies include the Q5 high-fidelity polymerase, a DNA polymerase with enhanced accuracy; Lipofectamine 2000, a transfection reagent; Elav-Gal4, a genetic driver system; Gibson Assembly Master Mix, a DNA assembly method; the CFX96 Real-Time PCR Detection System and LightCycler 480, instruments for quantitative PCR; and the restriction enzyme EcoRI, which can be used in molecular biology experiments.
Fetal bovine serum (FBS) is also a common component in cell culture media.
PubCompare.ai's AI-driven comparisons across literature, pre-prints, and patents can help optimize Integrase research by identifying the best protocols and products, enhancing reproducibility and accuracy while empowering researchers to make informed decisions.
By utilizing these insights and tools, researchers can advance their understanding of Integrase and develop more effective antiviral therapies.