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. 2013 Aug 23;9(4):20130409. doi: 10.1098/rsbl.2013.0409

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© 2013 The Author(s) Published by the Royal Society. All rights reserved.

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Figure 2. — Immunohistochemistry of gustducin and bitter taste receptors in the caecum of common marmosets. (a) HE staining of the caecum of the common marmoset revealed cells containing endocrine granules (arrowheads). (b) Chromic staining using anti-gustducin antibodies showed significant signals in the cells around the proximal mucosa of the caecum (arrows). (c–e) Immunofluorescence labelling of TAS2Rs (green) and gustducin (red) revealed the colocalization of these molecules in the cells around the proximal mucosa of the caecum (arrows). Scale bar, 50 μm. In all cases, omission of the primary antibody completely negated immunostaining of these cells.