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7ZHA

Structure of human OCT3 in complex with inhibitor decynium-22

Summary for 7ZHA
Entry DOI10.2210/pdb7zha/pdb
EMDB information14728
DescriptorSolute carrier family 22 member 3, 1-ethyl-2-[(1-ethylquinolin-2-yl)methyl]quinoline (2 entities in total)
Functional Keywordsorganic cation transporter, major-facilitator superfamily, slc22 family, corticosterone sensitive protein, membrane transport, decynium-22, membrane protein
Biological sourceHomo sapiens (human)
Total number of polymer chains1
Total formula weight61661.29
Authors
Khanppnavar, B.,Korkhov, V. (deposition date: 2022-04-05, release date: 2022-11-09, Last modification date: 2024-10-16)
Primary citationKhanppnavar, B.,Maier, J.,Herborg, F.,Gradisch, R.,Lazzarin, E.,Luethi, D.,Yang, J.W.,Qi, C.,Holy, M.,Jantsch, K.,Kudlacek, O.,Schicker, K.,Werge, T.,Gether, U.,Stockner, T.,Korkhov, V.M.,Sitte, H.H.
Structural basis of organic cation transporter-3 inhibition.
Nat Commun, 13:6714-6714, 2022
Cited by
PubMed Abstract: Organic cation transporters (OCTs) facilitate the translocation of catecholamines, drugs and xenobiotics across the plasma membrane in various tissues throughout the human body. OCT3 plays a key role in low-affinity, high-capacity uptake of monoamines in most tissues including heart, brain and liver. Its deregulation plays a role in diseases. Despite its importance, the structural basis of OCT3 function and its inhibition has remained enigmatic. Here we describe the cryo-EM structure of human OCT3 at 3.2 Å resolution. Structures of OCT3 bound to two inhibitors, corticosterone and decynium-22, define the ligand binding pocket and reveal common features of major facilitator transporter inhibitors. In addition, we relate the functional characteristics of an extensive collection of previously uncharacterized human genetic variants to structural features, thereby providing a basis for understanding the impact of OCT3 polymorphisms.
PubMed: 36344565
DOI: 10.1038/s41467-022-34284-8
PDB entries with the same primary citation
Experimental method
ELECTRON MICROSCOPY (3.55 Å)
Structure validation

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