Pull-down experiments using the conjugated peptides 1, 2, 7 and 9, (a) with hCAII and hCAI, [hCA] = 0.57 μM, C1: control, mixture of hCAII and hCAI, (b) and (c) with a mixture of ZW700-hCAII and CY3-hCAI, C2: control, mixture of dye-labeled hCAII and hCAI. Visualization of the SDS gel under irradiation at (b) 645 nm, and (c) 550 nm.