1MGQ

CRYSTAL STRUCTURE OF A HEPTAMERIC SM-LIKE PROTEIN FROM METHANOBACTERIUM THERMOAUTOTROPHICUM

• PDB DOI: https://doi.org/10.2210/pdb1MGQ/pdb

• Classification: RNA BINDING PROTEIN
• Organism(s): Methanothermobacter thermautotrophicus
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2002-08-16 Released: 2002-12-11 
• Deposition Author(s): Collins, B.M., Naidoo, N., Harrop, S.J., Curmi, P.M.G., Mabbutt, B.C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 0.261 
• R-Value Work: 0.229 
• R-Value Observed: 0.231 

Starting Model: experimental

Literature

Refined Structure of Sm-Like Protein Heptamer from Methanobacterium thermoautotrophicum

Collins, B.M., Naidoo, N., Harrop, S.J., Curmi, P.M.G., Mabbutt, B.C.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C7  (Explore in 3D)
Global Stoichiometry: Homo 7-mer - A7 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 64.29 kDa 
• Atom Count: 4,273 
• Modelled Residue Count: 511 
• Deposited Residue Count: 581 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
SM-LIKE PROTEIN	A, B, C, D, E, F, G	83	Methanothermobacter thermautotrophicus	Mutation(s): 0  Gene Names: MT0649
UniProt
Find proteins for O26745 (Methanothermobacter thermautotrophicus (strain ATCC 29096 / DSM 1053 / JCM 10044 / NBRC 100330 / Delta H)) Explore O26745  Go to UniProtKB:  O26745

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 0.261 
• R-Value Work: 0.229 
• R-Value Observed: 0.231 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 40.591	α = 90
b = 71.883	β = 94.02
c = 95.095	γ = 90

Software Package:

Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
AMoRE	phasing
REFMAC	refinement
CCP4	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2002-12-11 
Deposition Author(s): Collins, B.M., Naidoo, N., Harrop, S.J., Curmi, P.M.G., Mabbutt, B.C.

Revision History  

• Version 1.0: 2002-12-11
  Type: Initial release
  
• Version 1.1: 2008-04-28
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-10-25
  Changes: Data collection, Database references, Refinement description