8VA2

Symmetry expanded map of 2 gamma-tubulins bound to 2 alpha tubulins in gamma tubulin ring complex capped microtubule end.

• PDB DOI: https://doi.org/10.2210/pdb8VA2/pdb
• EM Map EMD-43085: EMDB EMDataResource

• Classification: CELL CYCLE
• Organism(s): Homo sapiens
• Expression System: Trichoplusia ni
• Mutation(s): No 


• Deposited: 2023-12-10 Released: 2024-03-27 
• Deposition Author(s): Aher, A., Urnavicius, L., Kapoor, T.M.
• Funding Organization(s): National Institutes of Health/National Cancer Institute (NIH/NCI)

---

Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 4.50 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Symmetry expanded map of 2 gamma-tubulins bound to 2 alpha tubulins.

Aher, A., Urnavicius, L., Kapoor, T.M.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 4-mer - A2B2 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content

• Total Structure Weight: 204.06 kDa 
• Atom Count: 13,430 
• Modelled Residue Count: 1,677 
• Deposited Residue Count: 1,796 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Tubulin alpha-1B chain	A [auth a], B [auth b]	457	Homo sapiens	Mutation(s): 0  Gene Names: TUBA1B EC: 3.6.5
UniProt & NIH Common Fund Data Resources
Find proteins for P68363 (Homo sapiens) Explore P68363  Go to UniProtKB:  P68363
PHAROS:  P68363 GTEx:  ENSG00000123416

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Tubulin gamma-1 chain	C [auth g], D [auth h]	441	Homo sapiens	Mutation(s): 0  Gene Names: TUBG1, TUBG

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GTP (Subject of Investigation/LOI)	E [auth a], G [auth b]	GUANOSINE-5'-TRIPHOSPHATE C10 H16 N5 O14 P3 XKMLYUALXHKNFT-UUOKFMHZSA-N
GDP (Subject of Investigation/LOI)	I [auth g], J [auth h]	GUANOSINE-5'-DIPHOSPHATE C10 H15 N5 O11 P2 QGWNDRXFNXRZMB-UUOKFMHZSA-N
MG (Subject of Investigation/LOI)	F [auth a], H [auth b]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 4.50 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-03-27 
Deposition Author(s): Aher, A., Urnavicius, L., Kapoor, T.M.

---

Funding Organization	Location	Grant Number
National Institutes of Health/National Cancer Institute (NIH/NCI)	United States	GM130234

Revision History  

• Version 1.0: 2024-03-27
  Type: Initial release