Protein Details: Aquaporin-3

Protein ID

ICDB_Pro_0538

Protein Name

Aquaporin-3

Gene Name

Aqp3

Organism

Rattus norvegicus (Rat)

Length

292 amino acids

AlphaFoldDB

AF-P47862-F1-model_v4.pdb

Function

Water channel required to promote glycerol permeability and water transport across cell membranes. Acts as a glycerol transporter in skin and plays an important role in regulating SC (stratum corneum) and epidermal glycerol content. Involved in skin hydration;wound healing;and tumorigenesis. Provides kidney medullary collecting duct with high permeability to water;thereby permitting water to move in the direction of an osmotic gradient. Slightly permeable to urea and may function as a water and urea exit mechanism in antidiuresis in collecting duct cells. It may play an important role in gastrointestinal tract water transport and in glycerol metabolism (By similarity).

Sequence

MGRQKELMNRCGEMLHIRYRLLRQALAECLGTLILVMFGCGSVAQVVLSRGTHGGFLTINLAFGFAVTLAILVAGQVSGAHLNPAVTFAMCFLAREPWIKLPIYTLAQTLGAFLGAGIVFGLYYDAIWAFAGNELVVSGPNGTAGIFATYPSGHLDMVNGFFDQFIGTAALIVCVLAIVDPYNNPVPRGLEAFTVGLVVLVIGTSMGFNSGYAVNPARDFGPRLFTALAGWGSEVFTTGQNWWWVPIVSPLLGSIGGVFVYQLMIGCHLEQPPPSTEAENVKLAHMKHKEQI

PDB Structures

Ligand Binding

1. DICL_CP

2. DICL_Pep

Binding Site

Disease

Diarrhea; Gastric cancer

Location

Detected in kidney medulla and papilla;in collecting duct cells (PubMed:7517548;PubMed:7526388). Detected in colon (PubMed:7517548).

DOI ID

10.1073/pnas.91.23.10997; 10.1101/gr.2596504; 10.1073/pnas.91.14.6269

RefSeq

NP_113891.1

Feature