Porcine Pepsin is a serine Endoproteinase with molecular weight of 35 kD. Its optimum activity is in the acid range (pH 2.0 â pH 4.0) and it predominantly cleaves peptide bonds on the carboxy side of aromatic and hydrophilic residues.
Take It Easy is a song written by Jackson Browne and Glenn Frey, and recorded by the Eagles with Frey singing lead vocals. It was the band's first single, released on May 1, 1972. It peaked at No. 12 on the July 22, 1972 Billboard Hot 100 chart.
They had more than one accomplished singer. On their debut album Frey, Leadon, and Meisner each co-wrote three songs, and all shared lead vocals. Glenn Frey took the lead vocal on many key later tracks. (It's his voice on major Eagles hits such as Take It Easy, Peaceful Easy Feeling, Already Gone, Tequila Sunrise, Lyin' Eyes, New Kid in Town, and Heartache Tonight.) While the tight harmonies were always part of the Eagles' sound, in terms of sheer number of lead vocal duties over the years, I guess it's Don Henley.