6D5T

Hexagonal thermolysin cryocooled to 100 K with 50% MPD as cryoprotectant

  • Classification: HYDROLASE
  • Organism(s): Bacillus thermoproteolyticus
  • Mutation(s): No 

  • Deposited: 2018-04-19 Released: 2018-09-19 
  • Deposition Author(s): Juers, D.H.
  • Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.196 
  • R-Value Work: 0.153 
  • R-Value Observed: 0.155 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The impact of cryosolution thermal contraction on proteins and protein crystals: volumes, conformation and order.

Juers, D.H.Farley, C.A.Saxby, C.P.Cotter, R.A.Cahn, J.K.B.Holton-Burke, R.C.Harrison, K.Wu, Z.

(2018) Acta Crystallogr D Struct Biol 74: 922-938

  • DOI: 10.1107/S2059798318008793
  • Primary Citation of Related Structures:  
    6B6S, 6B6R, 6B6T, 6B6O, 6B6N, 6B6Q, 6B6P, 6AVL, 6DZF, 6D6E, 6D6G, 6D6F, 6D5P, 6D5O, 6D5R, 6D5Q, 6D5T, 6D5S, 6D5U, 6D5N, 6D6H, 5UU9, 5UN3, 5UUE, 5UUB, 5UUA, 5UUD, 5UUC, 5UU8, 5UU7

  • PubMed Abstract: 
  • Cryocooling of macromolecular crystals is commonly employed to limit radiation damage during X-ray diffraction data collection. However, cooling itself affects macromolecular conformation and often damages crystals via poorly understood processes. Here, the effects of cryosolution thermal contraction on macromolecular conformation and crystal order in crystals ranging from 32 to 67% solvent content are systematically investigated ...

    Cryocooling of macromolecular crystals is commonly employed to limit radiation damage during X-ray diffraction data collection. However, cooling itself affects macromolecular conformation and often damages crystals via poorly understood processes. Here, the effects of cryosolution thermal contraction on macromolecular conformation and crystal order in crystals ranging from 32 to 67% solvent content are systematically investigated. It is found that the solution thermal contraction affects macromolecule configurations and volumes, unit-cell volumes, crystal packing and crystal order. The effects occur through not only thermal contraction, but also pressure caused by the mismatched contraction of cryosolvent and pores. Higher solvent-content crystals are more affected. In some cases the solvent contraction can be adjusted to reduce mosaicity and increase the strength of diffraction. Ice formation in some crystals is found to cause damage via a reduction in unit-cell volume, which is interpreted through solvent transport out of unit cells during cooling. The results point to more deductive approaches to cryoprotection optimization by adjusting the cryosolution composition to reduce thermal contraction-induced stresses in the crystal with cooling.


    Organizational Affiliation

    Department of Physics, Whitman College, 345 Boyer Avenue, Walla Walla, WA 99362, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ThermolysinA316Bacillus thermoproteolyticusMutation(s): 0 
Gene Names: npr
EC: 3.4.24.27
UniProt
Find proteins for P00800 (Bacillus thermoproteolyticus)
Explore P00800 
Go to UniProtKB:  P00800
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
LYS
Query on LYS

Download Ideal Coordinates CCD File 
C [auth A]LYSINE
C6 H15 N2 O2
KDXKERNSBIXSRK-YFKPBYRVSA-O
 Ligand Interaction
MRD
Query on MRD

Download Ideal Coordinates CCD File 
I [auth A](4R)-2-METHYLPENTANE-2,4-DIOL
C6 H14 O2
SVTBMSDMJJWYQN-RXMQYKEDSA-N
 Ligand Interaction
VAL
Query on VAL

Download Ideal Coordinates CCD File 
B [auth A]VALINE
C5 H11 N O2
KZSNJWFQEVHDMF-BYPYZUCNSA-N
 Ligand Interaction
ZN
Query on ZN

Download Ideal Coordinates CCD File 
D [auth A]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
CA
Query on CA

Download Ideal Coordinates CCD File 
E [auth A], F [auth A], G [auth A], H [auth A]CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.196 
  • R-Value Work: 0.153 
  • R-Value Observed: 0.155 
  • Space Group: P 61 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 92.79α = 90
b = 92.79β = 90
c = 128.872γ = 120
Software Package:
Software NamePurpose
CrysalisProdata collection
PHENIXrefinement
SCALAdata scaling

Structure Validation

View Full Validation Report




Entry History & Funding Information

Deposition Data

  • Deposited Date: 2018-04-19 
  • Released Date: 2018-09-19 
  • Deposition Author(s): Juers, D.H.

Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United States2R15GM090248

Revision History  (Full details and data files)

  • Version 1.0: 2018-09-19
    Type: Initial release
  • Version 1.1: 2018-10-31
    Changes: Data collection, Database references
  • Version 1.2: 2020-01-01
    Changes: Author supporting evidence