7WM1 | pdb_00007wm1

Cryo-EM structure of AKT1-AtKC1

• PDB DOI: https://doi.org/10.2210/pdb7WM1/pdb
• EM Map EMD-32597: EMDB EMDataResource

• Classification: MEMBRANE PROTEIN
• Organism(s): Arabidopsis thaliana
• Expression System: Homo sapiens
• Mutation(s): No 
• Membrane Protein: Yes  PDBTMMemProtMD


• Deposited: 2022-01-14 Released: 2023-01-25 
• Deposition Author(s): Dongliang, L., Zijie, Z., Yannan, Q., Yuyue, T., Huaizong, S.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

---

Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.80 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

AtKC1 inhibits AKT1 activation via its amino-terminal inhibitory domain.

Zheng, Z., Qu, Y., Chen, J., Tang, Y., Liu, D., Huang, Z., Shen, H.

(2025) Plant Commun : 101288-101288

• PubMed: 39980197 
• DOI: https://doi.org/10.1016/j.xplc.2025.101288
• Primary Citation of Related Structures:  
  7WM1, 7WM2, 9IS8

---

Organizational Affiliation: 

Fudan University, Shanghai 310024, China; Zhejiang Key Laboratory of Structural Biology, School of Life Sciences, Westlake University, Hangzhou, Zhejiang 310024, China; Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang 310024, China; Institute of Biology, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, China.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 4-mer - A2B2 Pseudo Symmetry: Cyclic - C2  (Explore in 3D)
Pseudo Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 359.65 kDa 
• Atom Count: 15,197 
• Modeled Residue Count: 1,844 
• Deposited Residue Count: 3,150 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Potassium channel AKT1	A, C	885	Arabidopsis thaliana	Mutation(s): 0  Gene Names: AKT1, At2g26650, F18A8.2 Membrane Entity: Yes
UniProt
Find proteins for Q38998 (Arabidopsis thaliana) Explore Q38998  Go to UniProtKB:  Q38998

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Potassium channel KAT3	B, D	690	Arabidopsis thaliana	Mutation(s): 0  Gene Names: KAT3, AKT4, KC1, At4g32650, F4D11.150 Membrane Entity: Yes
UniProt
Find proteins for P92960 (Arabidopsis thaliana) Explore P92960  Go to UniProtKB:  P92960

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
POV	E [auth A], I [auth B], J [auth C], K [auth D]	(2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate C42 H82 N O8 P WTJKGGKOPKCXLL-PFDVCBLKSA-N
K	F [auth A], G [auth A], H [auth A]	POTASSIUM ION K NPYPAHLBTDXSSS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.80 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-01-25 
Deposition Author(s): Dongliang, L., Zijie, Z., Yannan, Q., Yuyue, T., Huaizong, S.

---

Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	--

Revision History  

• Version 1.0: 2023-01-25
  Type: Initial release
  
• Version 1.1: 2024-06-26
  Changes: Data collection
• Version 1.2: 2025-05-21
  Changes: Data collection, Database references, Structure summary