Acm	acetamidomethyl
ACPAs	anti-citrullinated protein/peptide antibodies
AMPAs	anti-modified protein/peptide antibodies
anti-APA	antibodies against acetylated proteins
anti-CarP	antibodies against homocitrullinated (carbamylated) peptides/proteins
AU	arbitrary units
Boc	tert-butoxycarbonyl
BSA	bovine serum albumin
CFFCP	chimeric fibrin-filaggrin citrullinated peptide
CFFCHP	chimeric fibrin-filaggrin citrullinated/homocitrullinated peptide
CFFCHAP	chimeric fibrin/filaggrin citrullinated/homocitrullinated/acetylated peptide
CV	coefficient of variation
DIPCDI	N,N′-diisopropylcarbodiimide
DIPEA	diisopropylethylamine
DMF	dimethylformamide
ELISA	enzyme-linked immunosorbent assay
ESI-MS	electrospray ionization mass spectrometry
FBS	fetal bovine serum
FCS	fetal calf serum
Fmoc	9-fluorenyl-methoxycarbonyl
HATU	2-(1H-7-azabenzotriazole-1-yl)-1,1,3,3- tetramethyluronium hexafluorophosphate methanaminium
HOBt	1-hydroxybenzotriazole
HPLC	high-performance liquid chromatography
ILD	interstitial lung disease
IQR	interquartile range
LRMS	low-resolution mass spectrometry
MW	molecular weight
OD	optical density
OPD	o-phenylenediamine dihydrochloride
PAD	peptidylarginine deiminase
PBS	phosphate-buffered saline
Pmc	2,2,5,7,8-pentamethyl-chroman-6-sulfonyl
PTMs	post-translational modifications
PyBOP	benzotriazole-1-yloxytris(pirrolidino) phosphonium hexafluorophosphate
RA	rheumatoid arthritis
ROC	receiver operating characteristic
RP-HPLC	reverse-phase high-performance liquid chromatography
SDS	sodium dodecyl sulfate
SEM	standard error of the mean
SPPS	solid-phase peptide synthesis
tBu	tert-butyl
TFA	trifluroacetic acid
TIS	triisopropylsilane
TRIS	tris(hydroxymethyl)-aminomethane
Trt	triphenylmethyl