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Twist Bioscience Clonal-Ready Gene Fragments

Twist Bioscience has launched clonal-ready gene fragments. The synthetic DNA products are available with and without adapters and can be used to build constructs. Potential applications include cloning, gene and protein expression, pathway and enzyme engineering, and enzyme optimization.

Gene fragments begin as oligonucleotides, are annealed, and amplified to produce double-stranded DNA fragments. They are error-corrected in an enzymatic reaction. The error rate is 1 in 5,300 base pairs; for shorter oligonucleotides between 300 and 800 base pairs long, the error rate drops to 1 in 6,200.

The Scan

Positive Framing of Genetic Studies Can Spark Mistrust Among Underrepresented Groups

Researchers in Human Genetics and Genomics Advances report that how researchers describe genomic studies may alienate potential participants.

Small Study of Gene Editing to Treat Sickle Cell Disease

In a Novartis-sponsored study in the New England Journal of Medicine, researchers found that a CRISPR-Cas9-based treatment targeting promoters of genes encoding fetal hemoglobin could reduce disease symptoms.

Gut Microbiome Changes Appear in Infants Before They Develop Eczema, Study Finds

Researchers report in mSystems that infants experienced an enrichment in Clostridium sensu stricto 1 and Finegoldia and a depletion of Bacteroides before developing eczema.

Acute Myeloid Leukemia Treatment Specificity Enhanced With Stem Cell Editing

A study in Nature suggests epitope editing in donor stem cells prior to bone marrow transplants can stave off toxicity when targeting acute myeloid leukemia with immunotherapy.