Table 6 Distribution of tryptic peptide fragments of colligin-2 among the tissue sections of different groups Peptide masses obtained by MALDI-FTICR MS are listed that match within 2 ppm with the calculated values of enzymatic by trypsin digested fragments.

Measured mass MH+ (Da)

Calculated mass MH⁺ (Da)

ppm

p-value Intensity H against S

Intensity H > S

Glioma vessels (H)

Normal vessels (S)

Glioma tissue (TH)

Normal tissue (TS)

1021.5304 #

1021.53213

1.69

0.77475

no

1

2

0

3

1293.6805

1293.67973

0.60

0.01244

yes

5

1

1

3

1659.8011 *

1659.80126

0.10

0.02170

yes

5

1^&

0

0

1675.7747 ?

1675.77577

0.64

0.01088

yes

1

0

2

4