7FCI

human NTCP in complex with YN69083 Fab


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.30 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Structural insights into the HBV receptor and bile acid transporter NTCP.

Park, J.H.Iwamoto, M.Yun, J.H.Uchikubo-Kamo, T.Son, D.Jin, Z.Yoshida, H.Ohki, M.Ishimoto, N.Mizutani, K.Oshima, M.Muramatsu, M.Wakita, T.Shirouzu, M.Liu, K.Uemura, T.Nomura, N.Iwata, S.Watashi, K.Tame, J.R.H.Nishizawa, T.Lee, W.Park, S.Y.

(2022) Nature 

  • DOI: 10.1038/s41586-022-04857-0
  • Primary Citation of Related Structures:  
    7FCI

  • PubMed Abstract: 
  • Roughly 250 million people are infected with hepatitis B virus (HBV) worldwide 1 , and perhaps 15 million also carry the satellite virus HDV, which confers even greater risk of severe liver disease 2 . Almost ten years ago the HBV receptor was identified as NTCP (sodium taurocholate co-transporting polypeptide), which interacts directly with the first 48 amino acid residues of the N-myristoylated N-terminal preS1 domain of the viral large (L) protein 3 ...

    Roughly 250 million people are infected with hepatitis B virus (HBV) worldwide 1 , and perhaps 15 million also carry the satellite virus HDV, which confers even greater risk of severe liver disease 2 . Almost ten years ago the HBV receptor was identified as NTCP (sodium taurocholate co-transporting polypeptide), which interacts directly with the first 48 amino acid residues of the N-myristoylated N-terminal preS1 domain of the viral large (L) protein 3 . Despite the pressing need for therapeutic agents to counter HBV, the structure of NTCP remains unsolved. This 349-residue protein is closely related to human apical sodium-dependent bile acid transporter (ASBT), another member of the solute carrier family SLC10. Crystal structures have been reported of similar bile acid transporters from bacteria 4, 5 , and these models with ten transmembrane helices are believed to resemble strongly both NTCP and ASBT. Using cryo-electron microscopy we have solved the structure of NTCP bound to an antibody, clearly showing the transporter has no equivalent to the first transmembrane helix of other SLC10 models, leaving the N-terminus exposed on the extracellular face. Comparison of the different structures indicates a common mechanism of bile acid transport, but the NTCP structure also displays a pocket formed by residues known to interact with preS1, presenting new and enticing opportunities for structure-based drug design.


    Organizational Affiliation

    Drug Design Laboratory, Graduate School of Medical Life Science, Yokohama City University, Tsurumi, Yokohama, Japan. park@yokohama-cu.ac.jp.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Sodium/bile acid cotransporterA354Homo sapiensMutation(s): 0 
Gene Names: SLC10A1NTCPGIG29
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for Q14973 (Homo sapiens)
Explore Q14973 
Go to UniProtKB:  Q14973
PHAROS:  Q14973
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UniProt GroupQ14973
Protein Feature View
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Fab Light chainB [auth L]213Mus musculusMutation(s): 0 
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Fab Heavy chainC [auth H]255Mus musculusMutation(s): 0 
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Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.30 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2022-05-25
    Type: Initial release