- EMDB-50235: Human divalent metal transporter 1 (DMT1/SLC11A2) in complex with... -
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基本情報
登録情報
データベース: EMDB / ID: EMD-50235
タイトル
Human divalent metal transporter 1 (DMT1/SLC11A2) in complex with manganese, in an occluded state
マップデータ
試料
複合体: Complex of DMT1 with manganese ion
タンパク質・ペプチド: Natural resistance-associated macrophage protein 2
リガンド: MANGANESE (II) ION
キーワード
Iron transport / Manganese transport / Transition metal transport / Divalent metal transport / Metal transport / Transporter / Membrane protein / SLC / Iron uptake / Iron homeostasis / LeuT fold / Small membrane protein / TRANSPORT PROTEIN
機能・相同性
機能・相同性情報
vanadium ion transmembrane transporter activity / vanadium ion transport / paraferritin complex / Defective SLC11A2 causes hypochromic microcytic anemia, with iron overload 1 (AHMIO1) / lead ion transmembrane transporter activity / lead ion transport / nickel cation transmembrane transporter activity / transition metal ion transmembrane transporter activity / solute:proton symporter activity / inorganic cation transmembrane transporter activity ...vanadium ion transmembrane transporter activity / vanadium ion transport / paraferritin complex / Defective SLC11A2 causes hypochromic microcytic anemia, with iron overload 1 (AHMIO1) / lead ion transmembrane transporter activity / lead ion transport / nickel cation transmembrane transporter activity / transition metal ion transmembrane transporter activity / solute:proton symporter activity / inorganic cation transmembrane transporter activity / cadmium ion transmembrane transport / Metal ion SLC transporters / manganese ion transport / nickel cation transport / detection of oxygen / cadmium ion transmembrane transporter activity / manganese ion transmembrane transporter activity / iron import into cell / zinc ion transmembrane transporter activity / copper ion transmembrane transporter activity / retromer complex binding / iron ion transmembrane transporter activity / cobalt ion transport / cobalt ion transmembrane transporter activity / iron ion transmembrane transport / copper ion transport / basal part of cell / ferrous iron transmembrane transporter activity / vacuole / response to iron ion / dendrite morphogenesis / heme biosynthetic process / cadmium ion binding / erythrocyte development / brush border membrane / Iron uptake and transport / trans-Golgi network / : / recycling endosome / multicellular organismal-level iron ion homeostasis / recycling endosome membrane / late endosome membrane / extracellular vesicle / apical part of cell / late endosome / iron ion transport / cellular response to oxidative stress / early endosome membrane / cytoplasmic vesicle / intracellular iron ion homeostasis / mitochondrial outer membrane / learning or memory / early endosome / lysosome / response to hypoxia / endosome membrane / apical plasma membrane / lysosomal membrane / perinuclear region of cytoplasm / Golgi apparatus / cell surface / mitochondrion / membrane / nucleus / plasma membrane / cytoplasm 類似検索 - 分子機能
NRAMP family / Natural resistance-associated macrophage protein-like 類似検索 - ドメイン・相同性
Natural resistance-associated macrophage protein 2 類似検索 - 構成要素
ジャーナル: Nat Commun / 年: 2025 タイトル: Structural basis for metal ion transport by the human SLC11 proteins DMT1 and NRAMP1. 著者: Márton Liziczai / Ariane Fuchs / Cristina Manatschal / Raimund Dutzler / 要旨: Iron and manganese are essential nutrients whose transport across membranes is catalyzed by members of the SLC11 family. In humans, this protein family contains two paralogs, the ubiquitously ...Iron and manganese are essential nutrients whose transport across membranes is catalyzed by members of the SLC11 family. In humans, this protein family contains two paralogs, the ubiquitously expressed DMT1, which is involved in the uptake and distribution of Fe and Mn, and NRAMP1, which participates in the resistance against infections and nutrient recycling. Despite previous studies contributing to our mechanistic understanding of the family, the structures of human SLC11 proteins and their relationship to functional properties have remained elusive. Here we describe the cryo-electron microscopy structures of DMT1 and NRAMP1 and relate them to their functional properties. We show that both proteins catalyze selective metal ion transport coupled to the symport of H, but additionally also mediate uncoupled H flux. Their structures, while sharing general properties with known prokaryotic homologs, display distinct features that lead to stronger transition metal ion selectivity.