QBT solution for Qiagen Plasmid prep
- Known as:
- QBT buffer Qiagen Plasmid preparation kit
- Catalog number:
- BQ002
- Product Quantity:
- 1000ml
- Category:
- -
- Supplier:
- Intron
- Gene target:
- QBT solution for Qiagen Plasmid prep
Ask about this productRelated genes to: QBT solution for Qiagen Plasmid prep
- Gene:
- PREP NIH gene
- Name:
- prolyl endopeptidase
- Previous symbol:
- -
- Synonyms:
- -
- Chromosome:
- 6q21
- Locus Type:
- gene with protein product
- Date approved:
- 1996-03-12
- Date modifiied:
- 2016-10-05
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- The risk of HIV is significantly higher in transgender women compared to the general population, with young trans women having higher incidence compared to older trans women. Effective efforts to ensure PrEP uptake and persistence among young trans women is key to addressing the HIV epidemic in the U.S. We analyzed serial cross-sectional data from the Trans women Empowered to Advance Community Health (TEACH) studies conducted in San Francisco in 2013, 2016-2017, 2019-2020, and 2023-2024. Our study included 83 young adult (18-26 years old) trans women living without HIV. We used the Cochran-Armitage test for trends to assess changes in PrEP awareness, use, and key HIV risk and preventive behaviors. PrEP awareness among young trans women significantly increased from 6% in 2013, 94% in 2016-2017, 100.0% in 2019-2020, and 86% in 2023-2024 (z = 7.96, p < 0.001). PrEP use also significantly increased from 0% in 2013, 19% in 2016-2017, 46% in 2019-2020, and 36% in 2023-2024 (z = 9.90, p < 0.001). Meanwhile, condomless sex in the last 12 months has risen from 33% in 2013 to 86% in 2023-2024 (z = 4.15, p < 0.001). PrEP awareness and use have significantly increased among young trans women in San Francisco since FDA approval in 2012. However, our study points to a potential leveling off or decrease in PrEP awareness and use in recent years. Furthermore, PrEP use still lags need. Young trans women must be prioritized in PrEP awareness and demand creation efforts in addition to efforts to support adherence and persistence. - Source: PubMed
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Ricklefs ColbeySuprasert BowMcFarland WilliWilson Erin C - is a clinically important multidrug-resistant pathogen for which genetic manipulation remains challenging. Here, we developed a second-generation genetic toolbox based on leucine auxotrophy that enables antibiotic-free positive selection. A Δ mutant, lacking the gene encoding isopropyl malate dehydrogenase in the leucine biosynthesis pathway, was generated by targeted gene deletion. This mutant requires exogenous leucine for growth and can be complemented by plasmid-borne , establishing a robust auxotrophy-based selection system. To support genetic manipulation, we constructed a suite of second-generation vectors, including a multicopy replicative vector (pRep-amp-), a single-copy integrative vector (pInt-amp-), and a suicide vector (pSuc-amp-) for allelic replacement. These vectors enable gene overexpression, complementation, and targeted gene deletion, respectively, without reliance on aminoglycoside resistance markers. Using this system, we demonstrate efficient transformation and functional complementation of the Δ mutant, achieving high transformation efficiencies and near-zero background growth under leucine selection. In contrast to antibiotic-based systems, this approach eliminates nonspecific background and avoids activation of stress response pathways, such as the regulon. Overall, this auxotrophy-based toolbox provides a versatile platform for precise genetic manipulation in , improving selection stringency and enabling antibiotic-free functional genomics approaches, as demonstrated by deleting '), and a 19-kb fragment of the locus. - Source: PubMed
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