When NASA launched a spacecraft to an asteroid, scientists patiently waited for their chance to look at bits of the space ...

8). Figure 1: A sequence alignment of amino-acid residues near the H-9 (α9) and H-10 (α10) helix of class C β-lactamases with extended substrate spectrum.

Amino acids are small molecules that are the building blocks of proteins. Proteins serve as structural support inside the cell and they perform many vital chemical reactions. Each protein is a ...

Scientists poring over a sample brought back from the asteroid Bennu have detected amino acids and complex mineral compounds, ...

Each amino acid is specified by a combination of three ... The twisted double strand structure -- the famed double helix -- unwinds and the strands separate. The nucleotides (A, T, G, and C ...

The double helix unwinds, and each strand serves as a template for the synthesis of a new ... Ribosomes read the genetic code in mRNA and translate it into a sequence of amino acids, which fold into ...

The order that these bases are found in the genes determines the order of the amino acids they code for. Each gene has a particular order of bases in the DNA, and this leads to a particular order ...

(Image: Wikimedia Commons, CC SA 3.0) The most common type of base pairing is the Watson-Crick base pair, named after James Watson and Francis Crick, who first proposed the double helix structure of ...

This unwinding of the helix is caused by an enzyme (helicase ... Peptide bonds form between the adjacent amino acids to finalise the structure.