Table 1. Descriptive Results of the HDX-MS Analysis of Hemoglobin and IgG4Δhinge with An-PEP or Pepsin.

Hemoglobin
	unique peptides			sequence coverage			redundancy
	α subunit	β subunit	total	α subunit	β subunit	total	α subunit	β subunit
An-PEP	30	8	38	99	92	96	4	1.7
pepsin	13	14	27	89	99	95	2.8	2.6

IgG4Δhinge
	unique peptides			sequence coverage			redundancy
	light chain	heavy chain	total	light chain	heavy chain	total	light chain	heavy chain
An-PEP	19	69	88	88	92	91	2.1	3.5
pepsin	24	75	99	100	90	93	3.2	4.3