TABLE 1.

Phosphorylation sites identified by mass spectrometry

Phos, phosphorylated; UnPhos, unphosphorylated. C* indicates carbamidomethylation of cysteine.

Condition	Peptide sequence	Modified site	Best A score	Localization probability	Best Mas-cot score	Mascot identity thres-hold	Total spectral counts
				%
UnPhos	LVDFGVSAQLTpSTR	Ser-177	9.07	79	57.6	35.1	2
UnPhos	LVDFGVSAQLTSpTR	Thr-178	9.07	79	73.7	35.2	7
UnPhos	RNpTSVGTPFWoxMAPEVIAC*EQQLDTTYDAR	Thr-184	7.38	100	50.6	34.6	3
Phos	RNpTSVGTPFWoxMAPEVIAC*EQQLDTTYDAR	Thr-184	7.38	100	55.0	34.6	4
Phos	LINLAKGDpTGEATR	Thr-908	42.92	100	53.7	35.2	18
Phos	ETpTNoxMKTQTVASYFR	Thr-919	6.4	100	34.7	35.1	3