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The alternating access and inhibition mechanism of TauT. Key helices involved in the conformational changes are colored and labeled. The intracellular and extracellular cavities are depicted by purple and yellow shadows, respectively. The movement of TM1a during the transition from the occluded to the inward-open state is indicated by an ash black arrow. Sodium and chloride ions are represented as purple and green spheres, respectively. Molecules of taurine, GABA, GAA, β-Ala, P4S, I4AA, <t>GES,</t> <t>5AVA,</t> <t>Htau</t> and nipecotic acid are represented as spheres. Red lines indicate that the small molecules block TauT in the current conformation.
Htau, supplied by MedChemExpress, used in various techniques. Bioz Stars score: 94/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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h2s scavenger hypotaurine  (Merck KGaA)
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Merck KGaA h2s scavenger hypotaurine
The alternating access and inhibition mechanism of TauT. Key helices involved in the conformational changes are colored and labeled. The intracellular and extracellular cavities are depicted by purple and yellow shadows, respectively. The movement of TM1a during the transition from the occluded to the inward-open state is indicated by an ash black arrow. Sodium and chloride ions are represented as purple and green spheres, respectively. Molecules of taurine, GABA, GAA, β-Ala, P4S, I4AA, <t>GES,</t> <t>5AVA,</t> <t>Htau</t> and nipecotic acid are represented as spheres. Red lines indicate that the small molecules block TauT in the current conformation.
H2s Scavenger Hypotaurine, supplied by Merck KGaA, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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hypotaurine  (MedChemExpress)
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MedChemExpress hypotaurine
The alternating access and inhibition mechanism of TauT. Key helices involved in the conformational changes are colored and labeled. The intracellular and extracellular cavities are depicted by purple and yellow shadows, respectively. The movement of TM1a during the transition from the occluded to the inward-open state is indicated by an ash black arrow. Sodium and chloride ions are represented as purple and green spheres, respectively. Molecules of taurine, GABA, GAA, β-Ala, P4S, I4AA, <t>GES,</t> <t>5AVA,</t> <t>Htau</t> and nipecotic acid are represented as spheres. Red lines indicate that the small molecules block TauT in the current conformation.
Hypotaurine, supplied by MedChemExpress, used in various techniques. Bioz Stars score: 94/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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hypotaurine (cas 300‒84‒5, purity ≥98%)  (Shanghai Macklin Biochemical)
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Shanghai Macklin Biochemical hypotaurine (cas 300‒84‒5, purity ≥98%)
The alternating access and inhibition mechanism of TauT. Key helices involved in the conformational changes are colored and labeled. The intracellular and extracellular cavities are depicted by purple and yellow shadows, respectively. The movement of TM1a during the transition from the occluded to the inward-open state is indicated by an ash black arrow. Sodium and chloride ions are represented as purple and green spheres, respectively. Molecules of taurine, GABA, GAA, β-Ala, P4S, I4AA, <t>GES,</t> <t>5AVA,</t> <t>Htau</t> and nipecotic acid are represented as spheres. Red lines indicate that the small molecules block TauT in the current conformation.
Hypotaurine (Cas 300‒84‒5, Purity ≥98%), supplied by Shanghai Macklin Biochemical, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/result/hypotaurine (cas 300‒84‒5, purity ≥98%)/product/Shanghai Macklin Biochemical
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hypotaurine (ht  (Millipore)
90
Millipore hypotaurine (ht
The alternating access and inhibition mechanism of TauT. Key helices involved in the conformational changes are colored and labeled. The intracellular and extracellular cavities are depicted by purple and yellow shadows, respectively. The movement of TM1a during the transition from the occluded to the inward-open state is indicated by an ash black arrow. Sodium and chloride ions are represented as purple and green spheres, respectively. Molecules of taurine, GABA, GAA, β-Ala, P4S, I4AA, <t>GES,</t> <t>5AVA,</t> <t>Htau</t> and nipecotic acid are represented as spheres. Red lines indicate that the small molecules block TauT in the current conformation.
Hypotaurine (Ht, supplied by Millipore, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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hypotaurine (ht - by Bioz Stars, 2026-02
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hypotaurine  (Millipore)
90
Millipore hypotaurine
The alternating access and inhibition mechanism of TauT. Key helices involved in the conformational changes are colored and labeled. The intracellular and extracellular cavities are depicted by purple and yellow shadows, respectively. The movement of TM1a during the transition from the occluded to the inward-open state is indicated by an ash black arrow. Sodium and chloride ions are represented as purple and green spheres, respectively. Molecules of taurine, GABA, GAA, β-Ala, P4S, I4AA, <t>GES,</t> <t>5AVA,</t> <t>Htau</t> and nipecotic acid are represented as spheres. Red lines indicate that the small molecules block TauT in the current conformation.
Hypotaurine, supplied by Millipore, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/result/hypotaurine/product/Millipore
Average 90 stars, based on 1 article reviews
hypotaurine - by Bioz Stars, 2026-02
90/100 stars
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The alternating access and inhibition mechanism of TauT. Key helices involved in the conformational changes are colored and labeled. The intracellular and extracellular cavities are depicted by purple and yellow shadows, respectively. The movement of TM1a during the transition from the occluded to the inward-open state is indicated by an ash black arrow. Sodium and chloride ions are represented as purple and green spheres, respectively. Molecules of taurine, GABA, GAA, β-Ala, P4S, I4AA, GES, 5AVA, Htau and nipecotic acid are represented as spheres. Red lines indicate that the small molecules block TauT in the current conformation.

Journal: Nature Communications

Article Title: Molecular basis of human taurine transporter uptake and inhibition

doi: 10.1038/s41467-025-62857-w

Figure Lengend Snippet: The alternating access and inhibition mechanism of TauT. Key helices involved in the conformational changes are colored and labeled. The intracellular and extracellular cavities are depicted by purple and yellow shadows, respectively. The movement of TM1a during the transition from the occluded to the inward-open state is indicated by an ash black arrow. Sodium and chloride ions are represented as purple and green spheres, respectively. Molecules of taurine, GABA, GAA, β-Ala, P4S, I4AA, GES, 5AVA, Htau and nipecotic acid are represented as spheres. Red lines indicate that the small molecules block TauT in the current conformation.

Article Snippet: For the inhibition assay, the cells were incubated in PBS containing 0.5 μCi/mL [ 3 H]taurine and 0.6 mM P4S (MedChemExpress), 0.8 mM I4AA (MedChemExpress), 3 mM GES (MedChemExpress), 1.5 mM 5AVA (MedChemExpress), 2 mM nipecotic acid (MedChemExpress) or 3.5 mM Htau (MedChemExpress).

Techniques: Inhibition, Labeling, Blocking Assay