Table 1.

Primary antibodies for immunohistochemical staining for mismatch repair proteins

Antibody	Supplied by	Clone No.	Positive signal localization	Dilution	Incubation temperature (°C)	Incubation period (h)
MLH1	Novocastra, UK	14	Nuclear	1:50	37	2
MSH2	Novocastra, UK	FE11	Nuclear	1:20	37	2
MSH6	Novocastra, UK	BC/44	Nuclear	1:80	37	2
PSM2	Novocastra, UK	EP51	Nuclear	1:30	37	2