Capillaries in the hippocampal region of a mouse brain cryosection were visualized with the green-fluorescent Alexa Fluor® 488 conjugate of lectin HPA from Helix pomatia (Cat. No. L11271), which specifically binds to type A erythrocytes and a-N-acetylgalactosaminyl residues. The nuclei were counterstained with nuclear yellow (Cat. No. N21485). The multiple-exposure image was acquired using a DAPI longpass filter set and a filter set appropriate for fluorescein.