- EMDB-45406: Structure of human SLC2A9 transporter -
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基本情報
登録情報
データベース: EMDB / ID: EMD-45406
タイトル
Structure of human SLC2A9 transporter
マップデータ
Sharpen final map after refinement
試料
複合体: Codon optimize SLC2A9 gene was synthesize and cloned in 83 nu yeast expressing vector from GenScript. Protein expressed in yeast cells and purified using Ni-affinity followed by Sizing.
タンパク質・ペプチド: Soluble cytochrome b562,Solute carrier family 2, facilitated glucose transporter member 9
キーワード
Transporter / MEMBRANE PROTEIN
機能・相同性
機能・相同性情報
Defective SLC2A9 causes hypouricemia renal 2 (RHUC2) / fructose transmembrane transporter activity / fructose transmembrane transport / dehydroascorbic acid transport / hexose transmembrane transport / carbohydrate:proton symporter activity / Cellular hexose transport / D-glucose transmembrane transporter activity / D-glucose transmembrane transport / urate transport ...Defective SLC2A9 causes hypouricemia renal 2 (RHUC2) / fructose transmembrane transporter activity / fructose transmembrane transport / dehydroascorbic acid transport / hexose transmembrane transport / carbohydrate:proton symporter activity / Cellular hexose transport / D-glucose transmembrane transporter activity / D-glucose transmembrane transport / urate transport / urate metabolic process / urate transmembrane transporter activity / : / transmembrane transporter activity / electron transport chain / basolateral plasma membrane / periplasmic space / electron transfer activity / apical plasma membrane / iron ion binding / heme binding / membrane / plasma membrane 類似検索 - 分子機能
Glucose transporter GLUT / Sugar/inositol transporter / Sugar transport proteins signature 2. / Sugar transport proteins signature 1. / Sugar transporter, conserved site / Major facilitator, sugar transporter-like / Sugar (and other) transporter / Major facilitator superfamily domain / Major facilitator superfamily (MFS) profile. / Cytochrome b562 ...Glucose transporter GLUT / Sugar/inositol transporter / Sugar transport proteins signature 2. / Sugar transport proteins signature 1. / Sugar transporter, conserved site / Major facilitator, sugar transporter-like / Sugar (and other) transporter / Major facilitator superfamily domain / Major facilitator superfamily (MFS) profile. / Cytochrome b562 / Cytochrome b562 / Cytochrome c/b562 / MFS transporter superfamily 類似検索 - ドメイン・相同性
Soluble cytochrome b562 / Solute carrier family 2, facilitated glucose transporter member 9 類似検索 - 構成要素
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
米国
引用
ジャーナル: Proc Natl Acad Sci U S A / 年: 2025 タイトル: Structural basis of disease mutation and substrate recognition by the human SLC2A9 transporter. 著者: Nitesh Kumar Khandelwal / Meghna Gupta / Paras Kumar / Sree Ganesh Balasubramani / Ignacia Echeverria / Robert M Stroud / 要旨: Urate provides ~50% of the reducing potential in human and primate plasma which is key to detoxifying reactive oxygen by-products of cellular metabolism. Urate is the endpoint of purine metabolism in ...Urate provides ~50% of the reducing potential in human and primate plasma which is key to detoxifying reactive oxygen by-products of cellular metabolism. Urate is the endpoint of purine metabolism in primates, and its concentration in plasma is a balance between excretion from kidney and intestine, and subsequent reabsorption in and through cells of kidney proximal tubules to maintain a regulated concentration in plasma. SLC2A9 is the primary transporter that returns urate from the basolateral side of kidney tubule cells back to plasma. A shorter splice variant of SLC2A9 is directed to the apical surface where several transporters recapture urate from the tubule back into cells. Too high a concentration in plasma causes hyperuricemia, is linked to gout, and favors kidney stone formation. To understand the molecular basis of uric acid transport and the role of disease-causing mutations in SLC2A9, we determined structures of human SLC2A9 in its apo form, and its urate-bound form by cryo-EM, at resolution of 3.3 Å and 4.1 Å respectively. Both structures are captured in an inward open conformation. Using the inward-facing structure as a template we modeled the outward-facing conformation to understand the alternating access mechanism. Alternative salt bridge pairs on the cytoplasmic side suggest a mechanism that can balance the energetics of the inward open and outward open states. The location of disease-causing mutants suggests their role in impacting function. Our structures elucidate the molecular basis for urate selectivity and transport and provide a platform for future structure-based drug discovery aimed at reducing plasma urate levels in diseases of hyperuricemia and gout.
全体 : Codon optimize SLC2A9 gene was synthesize and cloned in 83 nu yea...
全体
名称: Codon optimize SLC2A9 gene was synthesize and cloned in 83 nu yeast expressing vector from GenScript. Protein expressed in yeast cells and purified using Ni-affinity followed by Sizing.
要素
複合体: Codon optimize SLC2A9 gene was synthesize and cloned in 83 nu yeast expressing vector from GenScript. Protein expressed in yeast cells and purified using Ni-affinity followed by Sizing.
タンパク質・ペプチド: Soluble cytochrome b562,Solute carrier family 2, facilitated glucose transporter member 9
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超分子 #1: Codon optimize SLC2A9 gene was synthesize and cloned in 83 nu yea...
超分子
名称: Codon optimize SLC2A9 gene was synthesize and cloned in 83 nu yeast expressing vector from GenScript. Protein expressed in yeast cells and purified using Ni-affinity followed by Sizing. タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all
由来(天然)
生物種: Homo sapiens (Human) (ヒト)
分子量
理論値: 69.78906 KDa
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分子 #1: Soluble cytochrome b562,Solute carrier family 2, facilitated gluc...
分子
名称: Soluble cytochrome b562,Solute carrier family 2, facilitated glucose transporter member 9 タイプ: protein_or_peptide / ID: 1 詳細: N-terminal Flag tag, HRV3C site followed by BRIL tag N-terminal truncated SlC2A9 isoform 1 (residue 52-540 as per uniprot). C terminal thrombin site followed by 10X his tag,N-terminal Flag ...詳細: N-terminal Flag tag, HRV3C site followed by BRIL tag N-terminal truncated SlC2A9 isoform 1 (residue 52-540 as per uniprot). C terminal thrombin site followed by 10X his tag,N-terminal Flag tag, HRV3C site followed by BRIL tag N-terminal truncated SlC2A9 isoform 1 (residue 52-540 as per uniprot). C terminal thrombin site followed by 10X his tag,N-terminal Flag tag, HRV3C site followed by BRIL tag N-terminal truncated SlC2A9 isoform 1 (residue 52-540 as per uniprot). C terminal thrombin site followed by 10X his tag,N-terminal Flag tag, HRV3C site followed by BRIL tag N-terminal truncated SlC2A9 isoform 1 (residue 52-540 as per uniprot). C terminal thrombin site followed by 10X his tag,N-terminal Flag tag, HRV3C site followed by BRIL tag N-terminal truncated SlC2A9 isoform 1 (residue 52-540 as per uniprot). C terminal thrombin site followed by 10X his tag,N-terminal Flag tag, HRV3C site followed by BRIL tag N-terminal truncated SlC2A9 isoform 1 (residue 52-540 as per uniprot). C terminal thrombin site followed by 10X his tag,N-terminal Flag tag, HRV3C site followed by BRIL tag N-terminal truncated SlC2A9 isoform 1 (residue 52-540 as per uniprot). C terminal thrombin site followed by 10X his tag,N-terminal Flag tag, HRV3C site followed by BRIL tag N-terminal truncated SlC2A9 isoform 1 (residue 52-540 as per uniprot). C terminal thrombin site followed by 10X his tag コピー数: 1 / 光学異性体: LEVO