Delivery of PtdIns(4,5)P2-NBD into eukaryotic and
prokaryotic cells. All images shown were recorded at 10 min after
addition of the carrier-cargo complex. (a) The uptake of
complexes of PtdIns(4,5)P2-NBD and Neo-RB by CHO cells.
(b) Uptake of PtdIns(4,5)P2-NBD-Neo-XRITC
complexes by a 3T3-L1 preadipocyte. (c) Uptake of
PtdIns(4,5)P2-NBD-Neo-RB complexes by MDCK cells.
(d) Uptake of PtdIns(4,5)P2-NBD (histone
carrier) by E. coli cells. (e) Uptake of
PtdIns(4,5)P2-NBD (histone carrier) by S.
cerevisiae cells. The red fluorescence in the plasma membrane
is a result of FM 4–64 staining after analog delivery.
(f) Uptake of
PtdIns(4,5)P2-NBD-Neo-RB complexes by A.
thaliana root-tip cells. (g) Uptake of
PtdIns(4,5)P2-NBD (histone carrier) by C.
parvum cells on a field of epithelial cells (background). For
each image, the green fluorescence is caused by the
PtdIns(4,5)P2-NBD, the red fluorescence is emitted by
either Neo-RB or Neo-XRITC (except e), and the yellow
regions are caused by colocalization of red and green fluorophores.
Magnifications: a, ×260; b and d,
×600; c, ×400; e and g, ×160; and
f, ×480.