PIP1B (plasma membrane intrinsic protein 1;2); water channel. Identical to Aquaporin PIP1-2 (PIP1-2) [Arabidopsis Thaliana] (GB:Q06611;GB:Q8L5V4); similar to PIP1A (PLASMA MEMBRANE INTRINSIC PROTEIN 1A) [Arabidopsis thaliana] (TAIR:AT3G61430.2); similar to PIP1A (PLASMA MEMBRANE INTRINSIC PROTEIN 1A), water channel [Arabidopsis thaliana] (TAIR:AT3G61430.1); similar to aquaporin PIP1b1 [Brassica oleracea] (GB:AAG23179.1); contains InterPro domain Aquaporin; (InterPro:IPR012269); contains InterPro domain Major intrinsic protein; (InterPro:IPR000425)