Abstract: The disclosure relates to a separable component such as a relay baton. The relay baton includes a first tubular body having an outer surface as well as a second tubular body at least partially surrounding the first tubular body and having an inner surface. An interface can be formed between the outer surface and the inner surface.

Abstract: Disclosed are nucleic acid sequences comprising a first E. coli homology region, wherein the first E. coli homology region comprises a protospacer adjacent motif (PAM) mutation; a constitutive promoter; a mevalonate-3-kinase (M3K) gene; a mevalonate diphosphate decarboxylase (MVD) gene; and a second E. coli homology region. Disclosed are vectors comprising one or more of the disclosed nucleic acid sequences. Disclosed are recombinant cells comprising a nucleic acid sequence, wherein the nucleic acid sequence comprises a first E. coli homology region, wherein the first E. coli homology region comprises a PAM mutation; a constitutive promoter; a M3K gene; a MVD gene; and a second E. coli homology region.

Abstract: The disclosure relates to a separable component such as a relay baton. The relay baton includes a first tubular body having an outer surface as well as a second tubular body at least partially surrounding the first tubular body and having an inner surface. An interface can be formed between the outer surface and the inner surface.