Table 1. UBR4-derived peptides identified in the murine SCN analyzed across the circadian cycle (Chiang et al, manuscript describing mass spectrometry screen was submitted).

Peptide Sequence	# of Samples Detected In (max. 24)	m/z	Charge	Score
ALGTLGMTTNEK	1	617.31	2	38.24
DPELFSGLASNILNFITTSMLNSR	5	879.78	3	43.22
GITQNALDYMK	9	626.31	2	49.35
NLLPATLQLIDTYASFTR	9	1018.05	2	205.88
QKEVQMNFLNQLTSVFNPR	5	764.06	3	65.95
QLISAHVLR	1	517.81	2	73.23
QLLQLLTTYIVR	7	729.94	2	123.95
RANTPLYHGFK	5	651.34	2	56.23
SIAVTRPNNLVHFTESK	13	637.34	3	77.22
SLLASLHSSR	23	534.79	2	111.06
SLTGLLSSFVEVESIKR	7	621.34	3	50.84
TEIITFTAMMK	9	642.32	2	65.72
VLGIYTFTKR	15	598.35	2	97.46