1IHN | pdb_00001ihn

MT938

• PDB DOI: https://doi.org/10.2210/pdb1IHN/pdb

• Classification: STRUCTURAL GENOMICS, unknown function
• Organism(s): Methanothermobacter thermautotrophicus
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2001-04-19 Released: 2001-05-16 
• Deposition Author(s): Das, K., Montelione, G.T., Arnold, E., Northeast Structural Genomics Consortium (NESG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 
  0.266 (Depositor), 0.264 (DCC) 
• R-Value Work: 
  0.228 (Depositor), 0.228 (DCC) 
• R-Value Observed: 
  0.229 (Depositor) 

Literature

X-ray crystal structure of MTH938 from Methanobacterium thermoautotrophicum at 2.2 A resolution reveals a novel tertiary protein fold.

Das, K., Xiao, R., Wahlberg, E., Hsu, F., Arrowsmith, C.H., Montelione, G.T., Arnold, E.

(2001) Proteins 45: 486-488

• PubMed: 11746696 
• DOI: https://doi.org/10.1002/prot.1162
• Primary Citation of Related Structures:  
  1IHN

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Organizational Affiliation: 

Center for Advanced Biotechnology and Medicine, Rutgers University, Piscataway, New Jersey 08854, USA.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 25.86 kDa 
• Atom Count: 1,846 
• Modelled Residue Count: 226 
• Deposited Residue Count: 226 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
hypothetical protein MTH938	A, B	113	Methanothermobacter thermautotrophicus	Mutation(s): 2
UniProt
Find proteins for O27021 (Methanothermobacter thermautotrophicus (strain ATCC 29096 / DSM 1053 / JCM 10044 / NBRC 100330 / Delta H)) Explore O27021  Go to UniProtKB:  O27021

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CL	C [auth A], D [auth A], E [auth B], F [auth B], G [auth B]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A, B	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free:  0.266 (Depositor), 0.264 (DCC) 
• R-Value Work:  0.228 (Depositor), 0.228 (DCC) 
• R-Value Observed: 0.229 (Depositor) 

Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 63.63	α = 90
b = 63.63	β = 90
c = 116.8	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
SnB	phasing
CNS	refinement
SOLVE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2001-05-16 
Deposition Author(s): Das, K., Montelione, G.T., Arnold, E., Northeast Structural Genomics Consortium (NESG)

Revision History  

• Version 1.0: 2001-05-16
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2017-10-04
  Changes: Refinement description
• Version 1.4: 2024-10-30
  Changes: Data collection, Database references, Derived calculations, Structure summary