[English] 日本語
Yorodumi Papers
- Database of articles cited by EMDB/PDB/SASBDB data -

+
Search query

Keywords
Structure methods
Author
Journal
IF

-
Structure paper

TitleTransport and inhibition mechanism of the human SGLT2-MAP17 glucose transporter.
Journal, issue, pagesNat Struct Mol Biol, Vol. 31, Issue 1, Page 159-169, Year 2024
Publish dateDec 6, 2023
AuthorsMasahiro Hiraizumi / Tomoya Akashi / Kouta Murasaki / Hiroyuki Kishida / Taichi Kumanomidou / Nao Torimoto / Osamu Nureki / Ikuko Miyaguchi /
PubMed AbstractSodium-glucose cotransporter 2 (SGLT2) is imporant in glucose reabsorption. SGLT2 inhibitors suppress renal glucose reabsorption, therefore reducing blood glucose levels in patients with type 2 ...Sodium-glucose cotransporter 2 (SGLT2) is imporant in glucose reabsorption. SGLT2 inhibitors suppress renal glucose reabsorption, therefore reducing blood glucose levels in patients with type 2 diabetes. We and others have developed several SGLT2 inhibitors starting from phlorizin, a natural product. Using cryo-electron microscopy, we present the structures of human (h)SGLT2-MAP17 complexed with five natural or synthetic inhibitors. The four synthetic inhibitors (including canagliflozin) bind the transporter in the outward conformations, while phlorizin binds it in the inward conformation. The phlorizin-hSGLT2 interaction exhibits biphasic kinetics, suggesting that phlorizin alternately binds to the extracellular and intracellular sides. The Na-bound outward-facing and unbound inward-open structures of hSGLT2-MAP17 suggest that the MAP17-associated bundle domain functions as a scaffold, with the hash domain rotating around the Na-binding site. Thus, Na binding stabilizes the outward-facing conformation, and its release promotes state transition to inward-open conformation, exhibiting a role of Na in symport mechanism. These results provide structural evidence for the Na-coupled alternating-access mechanism proposed for the transporter family.
External linksNat Struct Mol Biol / PubMed:38057552 / PubMed Central
MethodsEM (single particle)
Resolution2.8 - 3.3 Å
Structure data

EMDB-34610, PDB-8hb0:
Structure of human SGLT2-MAP17 complex with TA1887
Method: EM (single particle) / Resolution: 2.9 Å

EMDB-34673, PDB-8hdh:
Structure of human SGLT2-MAP17 complex with Canagliflozin
Method: EM (single particle) / Resolution: 3.1 Å

EMDB-34705, PDB-8hez:
Structure of human SGLT2-MAP17 complex with Dapagliflozin
Method: EM (single particle) / Resolution: 2.8 Å

EMDB-34737, PDB-8hg7:
Structure of human SGLT2-MAP17 complex with Sotagliflozin
Method: EM (single particle) / Resolution: 3.1 Å

EMDB-34823, PDB-8hin:
Structure of human SGLT2-MAP17 complex with Phlorizin
Method: EM (single particle) / Resolution: 3.3 Å

Chemicals

ChemComp-NAG:
2-acetamido-2-deoxy-beta-D-glucopyranose / N-Acetylglucosamine

ChemComp-KZ3:
(2R,3R,4S,5S,6R)-2-[3-[(4-cyclopropylphenyl)methyl]-4-fluoranyl-indol-1-yl]-6-(hydroxymethyl)oxane-3,4,5-triol

ChemComp-NA:
Unknown entry

ChemComp-HOH:
WATER / Water

ChemComp-L3R:
(2~{S},3~{R},4~{R},5~{S},6~{R})-2-[3-[[5-(4-fluorophenyl)thiophen-2-yl]methyl]-4-methyl-phenyl]-6-(hydroxymethyl)oxane-3,4,5-triol

ChemComp-LE6:
(2S,3R,4R,5S,6R)-2-[4-chloranyl-3-[(4-ethoxyphenyl)methyl]phenyl]-6-(hydroxymethyl)oxane-3,4,5-triol

ChemComp-LFL:
(2S,3R,4R,5S,6R)-2-[4-chloranyl-3-[(4-ethoxyphenyl)methyl]phenyl]-6-methylsulfanyl-oxane-3,4,5-triol

ChemComp-LN9:
1-[2-[(2S,3R,4S,5S,6R)-6-(hydroxymethyl)-3,4,5-tris(oxidanyl)oxan-2-yl]oxy-4,6-bis(oxidanyl)phenyl]-3-(4-hydroxyphenyl)propan-1-one

Source
  • homo sapiens (human)
KeywordsTRANSPORT PROTEIN / Ion transport / Sodium transport / Sugar transport / Symport / Transport

+
About Yorodumi Papers

-
News

-
Feb 9, 2022. New format data for meta-information of EMDB entries

New format data for meta-information of EMDB entries

  • Version 3 of the EMDB header file is now the official format.
  • The previous official version 1.9 will be removed from the archive.

Related info.:EMDB header

External links:wwPDB to switch to version 3 of the EMDB data model

-
Aug 12, 2020. Covid-19 info

Covid-19 info

URL: https://pdbj.org/emnavi/covid19.php

New page: Covid-19 featured information page in EM Navigator.

Related info.:Covid-19 info / Mar 5, 2020. Novel coronavirus structure data

+
Mar 5, 2020. Novel coronavirus structure data

Novel coronavirus structure data

Related info.:Yorodumi Speices / Aug 12, 2020. Covid-19 info

External links:COVID-19 featured content - PDBj / Molecule of the Month (242):Coronavirus Proteases

+
Jan 31, 2019. EMDB accession codes are about to change! (news from PDBe EMDB page)

EMDB accession codes are about to change! (news from PDBe EMDB page)

  • The allocation of 4 digits for EMDB accession codes will soon come to an end. Whilst these codes will remain in use, new EMDB accession codes will include an additional digit and will expand incrementally as the available range of codes is exhausted. The current 4-digit format prefixed with “EMD-” (i.e. EMD-XXXX) will advance to a 5-digit format (i.e. EMD-XXXXX), and so on. It is currently estimated that the 4-digit codes will be depleted around Spring 2019, at which point the 5-digit format will come into force.
  • The EM Navigator/Yorodumi systems omit the EMD- prefix.

Related info.:Q: What is EMD? / ID/Accession-code notation in Yorodumi/EM Navigator

External links:EMDB Accession Codes are Changing Soon! / Contact to PDBj

+
Jul 12, 2017. Major update of PDB

Major update of PDB

  • wwPDB released updated PDB data conforming to the new PDBx/mmCIF dictionary.
  • This is a major update changing the version number from 4 to 5, and with Remediation, in which all the entries are updated.
  • In this update, many items about electron microscopy experimental information are reorganized (e.g. em_software).
  • Now, EM Navigator and Yorodumi are based on the updated data.

External links:wwPDB Remediation / Enriched Model Files Conforming to OneDep Data Standards Now Available in the PDB FTP Archive

-
Yorodumi Papers

Database of articles cited by EMDB/PDB/SASBDB data

  • Database of articles cited by EMDB, PDB, and SASBDB entries
  • Using PubMed data

Related info.:EMDB / PDB / SASBDB / Yorodumi / EMN Papers / Changes in new EM Navigator and Yorodumi

Read more