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Table 1 Citrullinated (cit) and homocitrullinated (Hcit) vimentin peptides identified in human tissue samples

From: Expression of citrulline and homocitrulline residues in the lungs of non-smokers and smokers: implications for autoimmunity in rheumatoid arthritis

Vimentin peptides

Frequency of detection

Lung

Lymph node

Liver

Kidney

Spleen

Ovary

Heart

Skeletal muscle

COPD smokers

COPD ex-smokers

Never smokers

Smokers without COPD

Citrullinated

70 L(cit)SSVPGVR78 / 71(cit)SSVPGVR78

2/4

1/2

2/3

2/3

0/1

0/1

0/1

0/1

0/1

0/1

0/1

295FADLSEAAN(cit)NNDALR310

0/4

0/2

1/3

0/3

0/1

0/1

1/1

1/1

1/1

0/1

0/1

344QM(cit)EMEENFAVEAANYQDTIGR365

0/4

0/2

1/3

0/3

0/1

0/1

0/1

0/1

0/1

0/1

0/1

403LLEGEES(cit)ISLPLPNFSSLNLR424

1/4

0/2

1/3

1/3

0/1

0/1

0/1

0/1

0/1

0/1

0/1

446TVET(cit)DGQVINETSQHHDDLE466

1/4

0/2

2/3

2/3

1/1

0/1

1/1

0/1

1/1

0/1

0/1

Homocitrullinated

101TNE(Hcit)VELQELNDRFANYIDKVR122

2/4

2/2

1/3

0/3

0/1

0/1

0/1

0/1

0/1

0/1

0/1

  1. Representative tissue lysates from 12 lung tissues (COPD smokers (n = 4), COPD ex-smokers (n = 2), never smokers (n = 3) and smokers without COPD (n = 3)) and one from each of the control tissues were analysed by mass spectrometry. COPD, chronic obstructive pulmonary disease.