Table 1. Identified phosphopeptides of endogenous Smo from HhN-stimulated cells.

Phosphopeptide*	Region
α-Smo, chymotrypsin
NTHTDPVGL	I
NFDVNDLNSSETNDISSTW	II
NFDVNDLNSSETNDISSTW	II
NFDVNDLNSSETNDISSTW	II
NFDVNDLNSSETNDISSTW	II
DVNDLNSSETNDISSTW	II
DVNDLNSSETNDISSTW	II
IAAATGKSSRRRESSTSVESQVIAL	VI
LQNQDMSSSSEEDNSRASQKIQDL	VII
α-Smo, trypsin
MALTGAATGNSSSHGPR	III
RNSVDSQVSVK	V
RNSVDSQVSVKIAEMK	V
HVSVESRRNSVDSQVSVK	V
RRESSTSVESQVIALK	VI
α-Fu, chymotrypsin
NFDVNDLNSSETNDISSTW†	II
NFDVNDLNSSETNDISSTW†	II
NFDVNDLNSSETNDISSTW†	II
α-Fu, trypsin
KNSLDSEISVSVR	IV
RNSVDSQVSVK	V
RNSVDSQVSVK	V
RNSVDSQVSVK	V
HVSVESR	V
RESSTSVESQVIALK†	VI
RESSTSVESQVIALK†	VI
RESSTSVESQVIALK†	VI
QQEISEDDHDGIK	VIII

^*Phosphorylated residues are underlined.

^†The phosphopeptide(s) isolated represent one or a combination of these three possible species.