Figure 3
From: Proton-driven sodium secretion in a saline water animal

Expression of V-type H+ ATPase protein in A. taeniorhynchus larvae. Western blot analysis of (VHA) protein with molecular mass standards (left lane) and homogenate of Malpighian tubules (second lane) and posterior recta (third lane) from 1% seawater held larvae and posterior recta (fourth lane) from 150% seawater held larvae revealing a band of ∼ 50 kDa.