5ZQL

crystal structure of human katanin AAA ATPase domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.01 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.275 
  • R-Value Observed: 0.275 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structural and Molecular Basis for Katanin-Mediated Severing of Glutamylated Microtubules.

Shin, S.C.Im, S.K.Jang, E.H.Jin, K.S.Hur, E.M.Kim, E.E.

(2019) Cell Rep 26: 1357-1367.e5

  • DOI: 10.1016/j.celrep.2019.01.020
  • Primary Citation of Related Structures:  
    5ZQM, 5ZQL

  • PubMed Abstract: 
  • Katanin was the first microtubule (MT)-severing enzyme discovered, but how katanin executes MT severing remains poorly understood. Here, we report X-ray crystal structures of the apo and ATPγS-bound states of the catalytic AAA domain of human katanin p60 at 3 ...

    Katanin was the first microtubule (MT)-severing enzyme discovered, but how katanin executes MT severing remains poorly understood. Here, we report X-ray crystal structures of the apo and ATPγS-bound states of the catalytic AAA domain of human katanin p60 at 3.0 and 2.9 Å resolution, respectively. Comparison of the two structures reveals conformational changes induced by ATP binding and how such changes ensure hexamer stability. Moreover, we uncover structural details of pore loops (PLs) and show that Arg283, a residue unique to katanin among MT-severing enzymes, protrudes from PL1 and lines the entry of the catalytic pore. Functional studies suggest that PL1 and Arg283 play essential roles in the recognition and remodeling of the glutamylated, C-terminal tubulin tail and regulation of axon growth. In addition, domain-swapping experiments in katanin and spastin suggest that the non-homologous N-terminal region, which contains the MT-interacting and trafficking domain and a linker, confers specificity to the severing process.


    Organizational Affiliation

    Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea. Electronic address: eunice@kist.re.kr.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Katanin p60 ATPase-containing subunit A1B [auth A], A [auth B]309Homo sapiensMutation(s): 1 
Gene Names: KATNA1
EC: 3.6.4.3 (PDB Primary Data), 5.6.1.1 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for O75449 (Homo sapiens)
Explore O75449 
Go to UniProtKB:  O75449
PHAROS:  O75449
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.01 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.275 
  • R-Value Observed: 0.275 
  • Space Group: P 43
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 97.81α = 90
b = 97.81β = 90
c = 72.706γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
MOLREPphasing
HKL-2000data scaling
PHENIXphasing
Cootmodel building
HKL-2000data reduction

Structure Validation

View Full Validation Report




Entry History & Funding Information

Deposition Data

  • Deposited Date: 2018-04-19 
  • Released Date: 2019-02-27 
  • Deposition Author(s): Kim, E.E., Shin, S.C.

Funding OrganizationLocationGrant Number
Korea, Republic Of--

Revision History  (Full details and data files)

  • Version 1.0: 2019-02-27
    Type: Initial release
  • Version 1.1: 2019-10-30
    Changes: Data collection