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

Table 1 Citrullinated inter-alpha-trypsin inhibitor heavy chain 4 was identified in mouse samples by two-dimensional PAGE and nanoUPLC-MS^E

Protein ID	Protein name	Coverage (%)		MW (kDa)
Protein ID	Protein name	Control	pGIA	MW (kDa)
O54882	Inter-alpha-trypsin inhibitor heavy chain 4	55.4	63.9	104.6
Position	Peptide sequence	Calculated mass	Observed mass	Arginine
429–438	MALDNGGLA(cit)	1033.50	1033.49	R438

MW Molecular weight, pGIA Peptide glucose-6-phosphate isomerase-induced arthritis
Calculated mass = calculated mass-to-charge ratio of the modified peptides; observed mass = observed mass-to-charge ratio of the modified peptides

ISSN: 1478-6362