1G2B | pdb_00001g2b

ALPHA-SPECTRIN SRC HOMOLOGY 3 DOMAIN, CIRCULAR PERMUTANT, CUT AT N47-D48

• PDB DOI: https://doi.org/10.2210/pdb1G2B/pdb

• Classification: METAL BINDING PROTEIN
• Organism(s): Gallus gallus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2000-10-18 Released: 2000-11-01 
• Deposition Author(s): Berisio, R., Viguera, A.R., Serrano, L., Wilmanns, M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.12 Å
• R-Value Free: 
  0.202 (Depositor), 0.202 (DCC) 
• R-Value Work: 
  0.151 (DCC) 
• R-Value Observed: 
  0.148 (Depositor) 

Literature

Atomic resolution structure of a mutant of the spectrin SH3 domain.

Berisio, R., Viguera, A., Serrano, L., Wilmanns, M.

(2001) Acta Crystallogr D Biol Crystallogr 57: 337-340

• PubMed: 11173498 
• DOI: https://doi.org/10.1107/s090744490001581x
• Primary Citation Related Structures: 
  1G2B


• PubMed Abstract: 
  

  The crystal structure of an alpha-spectrin Src-homology 3 (SH3) domain mutant has been refined at 1.12 A resolution. This X-ray structure is at the highest resolution achieved so far for an SH3 domain. The structure allows the identification of a complete set of specific interactions and is useful for the elucidation of relations between structure and pH-dependent thermodynamic stability in a series of SH3 domain mutants.

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Organizational Affiliation: 
• Centro di Studio di Biocristallografia, CNR and Dipartimento di Chimica, Università di Napoli Federico II, Via Mezzocannone 4, I-80134 Napoli, Italy. [e-mail]

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 7.42 kDa 
• Atom Count: 699 
• Modeled Residue Count: 62 
• Deposited Residue Count: 62 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
SPECTRIN ALPHA CHAIN	A	62	Gallus gallus	Mutation(s): 0
UniProt
Find proteins for P07751 (Gallus gallus) Explore P07751  Go to UniProtKB:  P07751

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	B [auth A], C [auth A], D [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.12 Å
• R-Value Free:  0.202 (Depositor), 0.202 (DCC) 
• R-Value Work:  0.151 (DCC) 
• R-Value Observed: 0.148 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 31.1	α = 90
b = 42.97	β = 90
c = 53.05	γ = 90

Software Package:

Software Name	Purpose
AMoRE	phasing
SHELXL-97	refinement
XDS	data reduction
XDS	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2000-11-01 
Deposition Author(s): Berisio, R., Viguera, A.R., Serrano, L., Wilmanns, M.

Revision History  

• Version 1.0: 2000-11-01
  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: 2017-08-09
  Changes: Advisory, Refinement description, Source and taxonomy
• Version 1.4: 2017-10-04
  Changes: Refinement description
• Version 1.5: 2024-02-07
  Changes: Advisory, Data collection, Database references, Derived calculations