Biological Assembly 1  

 3D View: Structure | Ligand Interaction

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Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Hetero 6-mer - A2B2C2 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 268881.63 
• Atom Count: 11639 
• Residue Count: 2344 
• Unique protein chains: 3

6E1K

Structure of AtTPC1(DDE) reconstituted in saposin A with cat06 Fab

• DOI: 10.2210/pdb6E1K/pdb
• EMDataBank: EMD-8956

• Classification: MEMBRANE PROTEIN
• Organism(s): Arabidopsis thaliana
• Expression System: Escherichia coli, Saccharomyces cerevisiae


• Deposited: 2018-07-10 Released: 2018-09-19 
• Deposition Author(s): Kintzer, A.F., Green, E.M., Cheng, Y., Stroud, R.M.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences 

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.3 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Structural basis for activation of voltage sensor domains in an ion channel TPC1.

Kintzer, A.F., Green, E.M., Dominik, P.K., Bridges, M., Armache, J.P., Deneka, D., Kim, S.S., Hubbell, W., Kossiakoff, A.A., Cheng, Y., Stroud, R.M.

(2018) Proc. Natl. Acad. Sci. U.S.A. 115: E9095-E9104

• PubMed: 30190435 
• Primary Citation of Related Structures:  
  6E1P, 6E1N, 6E1M, 6CX0

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Two pore calcium channel protein 1	A, B	727	Arabidopsis thaliana	Mutation(s): 0  Gene Names: TPC1 (CCH1, FOU2)
Find proteins for Q94KI8 (Arabidopsis thaliana) Go to UniProtKB:  Q94KI8

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details
cat06 light chain	C, E	214	N/A	Mutation(s): 0
Protein Feature View is not available: No corresponding UniProt sequence found.

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details
cat06 heavy chain	D, F	231	N/A	Mutation(s): 0
Protein Feature View is not available: No corresponding UniProt sequence found.

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
CA	A, B	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N
PLM	A, B	PALMITIC ACID C16 H32 O2 IPCSVZSSVZVIGE-UHFFFAOYSA-N

Modified Residues  2 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
SEP	A, B	L-PEPTIDE LINKING	C3 H8 N O6 P		SER
TPO	A, B	L-PEPTIDE LINKING	C4 H10 N O6 P		THR

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.3 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Software Package:

Software Name	Purpose
PHENIX	refinement

Structure Validation

Entry History & Funding Information

Deposition Data

• Deposited Date: 2018-07-10 
• Released Date: 2018-09-19 
• Deposition Author(s): Kintzer, A.F., Green, E.M., Cheng, Y., Stroud, R.M.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences	United States	R01GM24485
National Institutes of Health/National Institute of General Medical Sciences	United States	R01GM098672

Revision History 

• Version 1.0: 2018-09-19
  Type: Initial release
• Version 1.1: 2018-10-03
  Type: Data collection, Database references