Aquaporins are protein channels located across the cell membrane with the role of conducting water or other small sugar alcohol molecules (aquaglyceroporins). The high-resolution X-ray structure of the human aquaporin 5 (HsAQP5) shows that HsAQP5. as all the other known aquaporins. exhibits tetrameric structure. https://thebrickes.shop/product-category/blu-ray-player/