|
|
|
![]() Other Issues: |
|
||||||||
EphB receptor expression in yolk sac blood vessels. Shown is a whole-mount analysis of mouse yolk sacs at day E9.5 stained with EphrinB ligand-alkaline phosphatase (AP), fusion proteins to detect EphB receptors. EphrinB2-AP binds strongly to vitelline veins (inset), whereas EphrinB1-AP binds equally well to vitelline veins (Background) and arteries (not shown), indicating the presence on veins of at least two EphB receptors with different binding preferences for the two ligands. (For details, see Adams et al., p. 295).