Table 1.

EBNA1 phosphosites

Peptides recovered for each phosphosite are shown along with the corresponding E value. Those residues conserved in each related virus are indicated; the phosphorylation state of these residues in cynomolgus-EBV and HVP is unknown.

Phosphosite*	Peptide†	E value‡	Conserved in:
			HVP	Cynomolgus-EBV
Thr8	SDEGPGpTGPGNGLGEKGDTSGPEGSGGSGPQR	4E−11	No	No
Thr20	GDpTSGPEGSGGSGPQRR	9E−13	Yes	No
Ser21	GDTpSGPEGSGGSGPQR	3E−10	No	No
Ser60	GGGRPGAPGGpSGSGPRHR	5E−15	Yes	Yes
Ser62	GGGRPGAPGGSGpSGPRHR	8E−13	Yes	Yes
Ser78	RPpSCIGCK	2E−03	Yes	Yes
Ser334	ARGGpSRER	2E−03	No	Yes
Ser365	GTHGGTGAGAGAGGAGAGGGGRGRGGpSGGRGR	2E−299	No	No
Ser383 and Ser393	RPRpSPSSQSSSSGpSPPRRPPPGR	5E−12	Yes	Yes

*Phosphosite amino acids are numbered according to the B95-8 strain of EBV.

†Phosphosites are indicated in bold type.

‡Expectation scores assigned by omssa. An E value <0.05 is statistically significant. With current search parameters, spectra assigned scores higher than 1E−04 should be subjected to manual interpretation. All of these spectra were validated manually.