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Tag: "methyl" at biology news

Regulating the nuclear architecture of the cell

...in the nucleosomes. Su(var)3-9 proteins attach methyl groups to the histone labeled H3 at its ninth amino acid residue, which is a lysine. In the histone code the methylation target is known as H3K9, where K stands for lysine. Methylation of chromatin causes it to condense. Another Su(var) gene, Su(...

Inheritance outside DNA

...ethylation patterns"the addition or subtraction of methyl groups"around a gene, but not the DNA sequence itself. These methylation patterns are reprogrammed when passed from generation to generation, carrying instructions related to the parent from whom that copy was inherited but without altering the DNA....

New sensor detects gaseous chemical weapon surrogates in 45 seconds

...rogates. In one test, researchers used diisopropyl methyl phosphonate (DIMP), which is a chemical compound that's similar to sarin. QPAS detected DIMP at the sub-part-per-billion level in less than one minute. The miniscule level is similar to letting one drop of liquid DIMP evaporate into a volume of air t...

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