What is one of the amino acids used in the biosynthesis of proteins, that is in a synthetic peptide consisting of eight amino acids?
Strep-tag The Strep-tag® system is a method which allows the purification and detection of proteins by affinity chromatography. The Strep-tag II is a synthetic peptide consisting of eight amino acids (Trp-Ser-His-Pro-Gln-Phe-Glu-Lys). This peptide sequence exhibits intrinsic affinity towards Strep-Tactin®, a specifically engineered streptavidin and can be N- or C- terminally fused to recombinant proteins. By exploiting the highly specific interaction, "Strep"-tagged proteins can be isolated in one step from crude cell lysates. Because the "Strep"-tag elutes under gentle, physiological conditions it is especially suited for generation of functional proteins.
Peptide deformylase In enzymology, a peptide deformylase (EC 3.5.1.88 ) is an enzyme that catalyzes the chemical reaction