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. 2010 May 19;32(4):497–507. doi: 10.1007/s11357-010-9146-8

Table 4.

Protein identification of each spot

Spot number Protein Score Coverage (%) Mass (kDa) pI
85 Inter-alpha-trypsin inhibitor heavy chain H4 2,904 23 103,552 6.51
Inter-alpha-trypsin inhibitor heavy chain H1 518 12 101,844 6.31
421 Kininogen-1 1,313 18 73,041 6.34
Angiotensinogen 464 15 53,439 5.87
16 Haptoglobin 524 26 39,521 6.13
Haptoglobin 376 20 45,889 6.42
Complement C4 248 3 194,367 6.65
113 Haptoglobin 925 36 45,889 6.13
Haptoglobin 767 24 39,521 6.42
apoA 279 35 45,398 5.28
10 Haptoglobin 507 26 45,889 6.13
Complement C4 478 2 194,367 6.65
Haptoglobin 381 22 39,521 6.42
4 Haptoglobin 391 26 45,889 6.13
Haptoglobin-related protein 284 22 39,521 6.42
624 Complement C3 (fragment?) 697 12 188,686 6.02
Gelsolin 413 10 86,096 5.90
Serum albumin 222 17 71,363 5.92
Ig mu chain C region 216 12 49,991 6.35

Each spot was excised from the 2-D electrophoresis gel and the protein reduced to peptides by trypsin. The mass of each peptide was determine by LCMS and matched to known proteins in the Mascot database using the guidelines recommended by Matrix Science (Boston, MA, USA). The molecular weight of several proteins is greater than the position of that spot on the gel. These may be a fragment of the higher molecular weight protein