Granulin-epithelin precursor interacts with 78-kDa glucose-regulated protein in hepatocellular carcinoma

BMC Cancer

Table 1 Summary of the peptide masses and search results of the GEP predominant interacting partner GRP78 in the liver cancer cell membrane fraction

Observed Da	Mr(expt)^a	Mr(calc)^b	Ppm^c	Start-End	Miss^d	Ions^e	Peptide sequence
1528.6	1527.6	1527.7	−84.1	325–336	1	29	R.AKFEELNMDLFR.S + Oxidation(M)
1566.6	1565.6	1565.8	−85.4	61–74	0	19	R.ITPSYVAFTPEGER.L
1815.8	1814.8	1815.0	−84.8	198–214	1	55	R.IINEPTAAAIAYGLDKR.E
1833.7	1832.7	1832.9	−88.6	82–97	1	42	K.NQLTSNPENTVFDAKR.L
1887.8	1886.8	1887.0	−89.6	165–181	0	92	K.VTHAVVTVPAYFNDAQR.Q

^aExperimental molecular mass (Dalton) of the peptide
^bRelative molecular mass (Dalton) calculated from the matched peptide sequence
^cparts per million, showing difference between the experimental and calculated masses
^dnumber of missed cleavage sites
^eions score

ISSN: 1471-2407