California Youth Symphony, a San Francisco Bay Area symphony orchestra for young musicians
CYS has also premiered many modern works, including music director Leo Eylar's Rhapsody for Orchestra, a piece nominated for the Pulitzer Prize.
All four transsulfuration enzymes are PLP enzymes and all bar Cystathionine γ-synthase are members of the Cys/Met metabolism PLP-dependent enzyme family (type I PLP enzymes).