Published customer image: . Sheep anti Human alkaline phosphatase antibody used for the detection of alkaline phosphatase in Caco-2/TC7 cells by western blotting. Image caption: . PPM supply induces movement of SR-BI/CLA-1 towards raft microdomains. (A) Caco-2/TC7 cells were harvested in the presence of Triton X-100 and the lysate fractionated on a 5–40% sucrose gradient. Eleven fractions were collected for immunoblots of SR-BI/CLA-1, EEA1 (early endosome antigen 1) and flottilin-1 (raft marker). (B) Caco-2/TC7 cells were cultured in the absence (control) or presence of PPM or IPM for 10 min and then harvested in the presence of Triton X-100. Cell lysates were applied to a 5–40% sucrose gradient and eleven fractions collected. Fractions 3 to 8 were analyzed by immunoblotting with antibodies against SR-BI/CLA-1 (left panel) and flottilin-1 (right panel). (C) Immunolocalization of SR-BI/CLA-1 and alkaline phosphatase (PLAP, used as raft marker) in the brush border of Caco-2/TC7 cells supplied with PPM. SR-BI/CLA-1 is labelled with anti-rabbit immunoglobulin-gold complexes (18-nm particles) and PLAP with anti-sheep immunoglobulin-gold complexes (12-nm particles). MV, microvilli; bar, 100 nm. From: B aslas O, Cueille C, Delers F, Chateau D, Chambaz J, Rousset M, et al. (2009). Sensing of Dietary Lipids by Enterocytes: A New Role for SR-BI/CLA-1. PLoS ONE 4(1): e4278 . This image is from an open access article distributed under the terms of the Creative Commons Attribution License .