Gal3BP and gal3-mediated leukocyte interactions with the IVC. Sockets distribution of gal3bp appears to be interacting with gal3 rich leukocytes (H,L). Red blood cell fluorescence is predominately nonspecific autofluoresence. The IVC lumen is indicated with an asterisk in DAPI images. Yellow arrows indicate WBC that is not attached to the vein wall. White arrows indicate gal3bp sockets on the vein wall. (A,E,I) Nuclear DAPI staining. (B,F,J) Gal3bp localization (FITC). (C,G,K) Gal3 localization (Texas Red). (D,H,L) Merge of images.