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Table II.

T cell proteasome subunit constituencies

Genotype	Principal Subunit Combinations^a
Wild type	Delta	LMP2
	Z	MECL-1
	LMP7	LMP7

MECL-1/LMP7^−/−	Delta	LMP2
	Z	Z
	X	X

MECL-1^−/−	Delta	LMP2
	Z	Z
	LMP7	LMP7

LMP7^−/−	Delta	LMP2
	Z	MECL-1
	X	X

LMP2^−/−	Delta	Delta
	Z	MECL-1
	LMP7	LMP7

Genotype	Principal Subunit Combinations^a
Wild type	Delta	LMP2
	Z	MECL-1
	LMP7	LMP7

MECL-1/LMP7^−/−	Delta	LMP2
	Z	Z
	X	X

MECL-1^−/−	Delta	LMP2
	Z	Z
	LMP7	LMP7

LMP7^−/−	Delta	LMP2
	Z	MECL-1
	X	X

LMP2^−/−	Delta	Delta
	Z	MECL-1
	LMP7	LMP7

a

Immunosubunits are listed in bold text.