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Table 2 Citrullinated inter-alpha-trypsin inhibitor heavy chain 4 was identified in human samples by two-dimensional PAGE and nanoUPLC-MSE

From: Identification of novel biomarker as citrullinated inter-alpha-trypsin inhibitor heavy chain 4, specifically increased in sera with experimental and rheumatoid arthritis

Protein ID

Protein name

Coverage (%)

MW (kDa)

HS

RA

B7Z545

Inter-alpha-trypsin inhibitor heavy chain 4

40.0

–

99.7

B2RMS9

Inter-alpha-trypsin inhibitor heavy chain 4 (inter-alpha globulin inhibitor H4)

–

42.3

103.3

Position

Peptide sequence

Calculated mass

Observed mass

Arginine

429–438

LALDNGGLA(cit)

999.55

999.53

R438

  1. Abbreviations: HS Healthy subjects, MW Molecular weight, RA Rheumatoid arthritis
  2. Calculated mass = calculated mass-to-charge ratio of the modified peptides; observed mass = observed mass-to-charge ratio of the modified peptides