Table 1. Characteristics of peptides selected from the constant region of antibodies.

Peptide	Amino acid sequence	Ig class	Proteases involved in cleavage	%a	Hydrophobicityb	pI	M.M. (Da)	Net charge
H4L	HEAL	IgG, IgM, IgAc	-	-	+-00	5.12	468.49	−
N10K	NQVSLTCLVK	IgG1c	Tryp+Tryp	81,4	**0*0**00+	8.23	1104.33	+
T11F	TCRVDHRGLTF	IgMd	Chym+Chym	63,5	**+0-++00*0	8.27	1304.51	+

^acleavage probability;

^b0: hydrophobic, *: polar, +, and −: positively charged and negatively charged residues;

^cconserved amino acids in human Ig and different organisms;

^dconserved amino acids only in human Ig;

pI, isoelectric point; M.M., molecular mass (dalton); Tryp, trypsin; Chym, chymotrypsin.