7CXR | pdb_00007cxr

Cryo-EM structure of human TMEM120A/TACAN

• PDB DOI: https://doi.org/10.2210/pdb7CXR/pdb
• EM Map EMD-30495: EMDB EMDataResource

• Classification: MEMBRANE PROTEIN
• Organism(s): Anaplasma marginale, Homo sapiens
• Expression System: Homo sapiens
• Mutation(s): No 
• Membrane Protein: Yes  OPMPDBTM


• Deposited: 2020-09-02 Released: 2021-09-01 
• Deposition Author(s): Yan, Z., Wu, J., Ke, M.

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.40 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Cryo-EM structures of human TMEM120A and TMEM120B.

Ke, M., Yu, Y., Zhao, C., Lai, S., Su, Q., Yuan, W., Yang, L., Deng, D., Wu, K., Zeng, W., Geng, J., Wu, J., Yan, Z.

(2021) Cell Discov 7: 77-77

• PubMed: 34465718 
• DOI: https://doi.org/10.1038/s41421-021-00319-5
• Primary Citation Related Structures: 
  7CXR, 7F73

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Organizational Affiliation: 
• Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang, China.
Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China.
Institute of Biology, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, China.
Department of Laboratory Medicine, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center, Chengdu, Sichuan, China.
Key Laboratory of Birth Defects and Related Disease of Women and Children of MOE, West China Second Hospital, Sichuan University, Chengdu, Sichuan, China.
Emergency Medicine Clinical Research Center, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Medical Research Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.
Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang, China. [e-mail].
Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China. [e-mail].
Institute of Biology, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, China. [e-mail].

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 145.29 kDa 
• Atom Count: 5,168 
• Modeled Residue Count: 614 
• Deposited Residue Count: 1,250 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
MCherry fluorescent protein,Ion channel TACAN	A, B	625	Anaplasma marginale, Homo sapiens This entity is chimeric	Mutation(s): 0  Gene Names: mCherry, TMEM120A, TACAN, TMPIT Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for Q9BXJ8 (Homo sapiens) Explore Q9BXJ8  Go to UniProtKB:  Q9BXJ8
PHAROS:  Q9BXJ8 GTEx:  ENSG00000189077

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.40 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX

Structure Validation

Entry History 

Deposition Data

• Released Date: 2021-09-01 
Deposition Author(s): Yan, Z., Wu, J., Ke, M.

Revision History  

• Version 1.0: 2021-09-01
  Type: Initial release
  
• Version 1.1: 2022-03-02
  Changes: Database references
• Version 1.2: 2024-05-29
  Changes: Data collection
• Version 1.3: 2025-07-02
  Changes: Data collection, Structure summary