2INB

Crystal structure of an XisH family protein (ZP_00107633.1) from Nostoc punctiforme PCC 73102 at 1.60 A resolution

• PDB DOI: https://doi.org/10.2210/pdb2INB/pdb

• Classification: Structural Genomics/Unknown function
• Organism(s): Nostoc punctiforme PCC 73102
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2006-10-06 Released: 2006-10-24 
• Deposition Author(s): Joint Center for Structural Genomics (JCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.191 
• R-Value Work: 0.158 
• R-Value Observed: 0.160 

Literature

Site-specific recombination of nitrogen-fixation genes in cyanobacteria by XisF-XisH-XisI complex: Structures and models.

Hwang, W.C., Golden, J.W., Pascual, J., Xu, D., Cheltsov, A., Godzik, A.

(2014) Proteins 

• DOI: https://doi.org/10.1002/prot.24679

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 16.34 kDa 
• Atom Count: 1,333 
• Modelled Residue Count: 128 
• Deposited Residue Count: 140 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
hypothetical protein	A	140	Nostoc punctiforme PCC 73102	Mutation(s): 0  Gene Names: ZP_00107633.1

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GOL	C [auth A], D [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
CL	B [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.191 
• R-Value Work: 0.158 
• R-Value Observed: 0.160 
• Space Group: P 3₁ 2 1
• Diffraction Data: https://doi.org/10.18430/M32INB

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 59.554	α = 90
b = 59.554	β = 90
c = 71.563	γ = 120

Software Package:

Software Name	Purpose
MolProbity	model building
REFMAC	refinement
SCALA	data scaling
PDB_EXTRACT	data extraction
MOSFLM	data reduction
CCP4	data scaling
SOLVE	phasing
RESOLVE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-10-24 
Deposition Author(s): Joint Center for Structural Genomics (JCSG)

Revision History  

• Version 1.0: 2006-10-24
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Advisory, Source and taxonomy, Version format compliance
• Version 1.3: 2014-09-10
  Changes: Database references
• Version 1.4: 2014-09-24
  Changes: Database references
• Version 1.5: 2017-10-18
  Changes: Advisory, Refinement description
• Version 1.6: 2017-10-25
  Changes: Author supporting evidence
• Version 1.7: 2023-01-25
  Changes: Advisory, Database references, Derived calculations