Research Article

Eryptotic Phenotype in Chronic Myeloid Leukemia: Contribution of Neutrophilic Cathepsin G

Table 1

Mass spectrometric identification of erythrocyte membrane antigens recognized by serum IgG. Trypsin digests of protein spots in gels of erythrocyte membranes, at a position corresponding to signals for immunogens recognized by serum IgG in the western blot of a replicate gel, were subjected to mass spectrometry. Peptide mass finger print (PMF) data was acquired on the MALDI TOF-TOF Protein analyzer (Ultraflex II, Bruker Daltonics) in the reflector mode. The data was searched against SwissProt database using MASCOT search engine with a peptide mass tolerance of 100 ppm.

Molecular weight in SDS-PAGESampleAccession no.pIMolecular weight in kDaScoreSequence coveragePeptides matched (submitted)Protein identity

55 kDaCML 10PERM_H9.1984.711814%11 (14)Myeloperoxidase
CML 11PERM_H9.1984.79411%8 (10)
CML 13PERM_H9.1984.7618%6 (15)
CML 14PERM_H9.1984.7708%7 (13)

43 kDaN6B3AT_H5.081027411%7 (22)Band 3 anion transport protein
N11B3AT_H5.081026619%14 (52)
CML 11B3AT_H5.081025017%10 (48)

26 kDaCML 12CATG_H11.1929.16417%5 (11)Cathepsin G
CML 13CATG_H11.1929.17126%6 (17)
CML 14CATG_H11.1929.16425%6 (29)
CML 16CATG_H11.1929.17022%7 (25)