Engineering of Silkworm Tyrosyl-tRNA Synthetase Variants to Create Halogenated Silk Fiber with Improved Thermal Stability.

Silk fiber, produced by the silkworm , is a protein fiber with an excellent mechanical strength and broad biocompatibility. Multiple approaches, including genetic and chemical methods, must be combined to tailor silk fiber properties for wide applications, such as textiles and biomaterials. Genetic code expansion (GCE) is an alternative method to alter proteins' chemical and physical properties by incorporating synthetic amino acids into their primary structures.

Effect of infusion time on risk of bloodstream infections in patients administered with BFLUID amino acid infusions via peripheral venous catheters.

Comprehensive electrolyte infusions containing amino acids, including BFLUID, are a source of nosocomial infections caused by . It is recommended that clinicians finish the administration of BFLUID within 6 h; however, this recommendation currently lacks supporting empirical evidence. Accordingly, the present study aimed to investigate the risk of infection associated with BFLUID infusion according to the administration time.

Prevalence of genital high-risk human papillomavirus infections and associated factors among women living with human immunodeficiency virus in Uganda.

Background: Women living with HIV are at risk for cervical dysplasia and cancer worldwide. In 2015, the World Health Organization (WHO) recommended that testing for high-risk HPV (hrHPV) infection be incorporated into cervical cancer screening programs using molecular nucleic acid tests (NATs) but this has not previously been done in Uganda. The country's coverage for Human Papilloma Virus (HPV) screening remains low at less than 10% for women aged 25-49 years.

Fibroin heavy chain gene replacement with a highly ordered synthetic repeat sequence in Bombyx mori.

The exceptional quality of silkworm silk is attributed to the amino acid sequence of its fibroin heavy chain (Fib-H) protein. The large central domain of Fib-H, which consists of glycine- and alanine-rich crystalline regions interspersed with amorphous motifs of approximately 30 amino acid residues, is considered crucial for fibrilization and determines the properties of the silk fiber. We established a technical platform to modify the Fib-H core region systematically using transcription activator-like effector nuclease-mediated homologous recombination through a somatic and germline gene knockin assay along with PCR-based screening.

Unique Material Properties of Silk Fiber Incorporated with 3-Azidotyrosine.

Silk fiber produced by the silkworm is a nature-derived proteinous fiber with excellent mechanical strength and broad biocompatibility. To alter its material properties and make it more suitable for textile, biomedical, and electronics applications, chemical modifications and genetic engineering methods have been extensively studied. Here, we report that the translational incorporation of a synthetic amino acid, 3-azidotyrosine (3-AzTyr), into silk fiber can improve its material properties.