Macromolecule Content

• Total Structure Weight: 7.98 kDa 
• Atom Count: 561 
• Residue Count: 68 
• Unique protein chains: 1

1ZV6

NMR structure of the human dematin headpiece S74E mutant

• DOI: 10.2210/pdb1ZV6/pdb
• BMRB: 6718

• Classification: PROTEIN BINDING
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2005-06-01 Released: 2006-03-21 
• Deposition Author(s): Jiang, Z.G., McKnight, C.J.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 21 
• Selection Criteria: structures with the lowest energy 

Literature

A phosphorylation-induced conformation change in dematin headpiece.

Jiang, Z.G., McKnight, C.J.

(2006) Structure 14: 379-387

• PubMed: 16472756 
• DOI: 10.1016/j.str.2005.11.007
• Primary Citation of Related Structures:  
  1ZV6


• PubMed Abstract: 
  

Dematin is an actin binding protein from the junctional complex of the erythrocyte cytoskeleton. The protein has two actin binding sites and bundles actin filaments in vitro. This actin bundling activity is reversibly regulated by phosphorylation in the carboxyl terminal "headpiece" domain (DHP). DHP is a typical villin-type headpiece actin binding motif and contains a flexible N-terminal loop and an alpha-helical C-terminal subdomain that is phosphorylated at Ser74. The NMR structure of a Ser74-to-Glu mutant (DHPs74e) closely mimics the conformation of phosphorylated DHP. The negative charge at Ser74 does not alter the conformation of the C-terminal subdomain, but attracts the N-terminal loop toward the C terminus, changing the orientation of the N-terminal subdomain. NMR relaxation studies also indicate reduced mobility in the N-terminal loop in DHPs74e. Thus, phosphorylation in DHP serves as a switch controlling the conformational state of DHP and the actin bundling activity of dematin.

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Organizational Affiliation: 

Department of Physiology and Biophysics, Boston University School of Medicine, 715 Albany Street, Boston, Massachusetts 02118, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
EPB49 protein	A	68	Homo sapiens	Mutation(s): 1  Gene Names: DMTN, DMT, EPB49
Find proteins for Q08495 (Homo sapiens) Explore Q08495  Go to UniProtKB:  Q08495
NIH Common Fund Data Resources
PHAROS:  Q08495 GTEx:  ENSG00000158856

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 21 
• Selection Criteria: structures with the lowest energy 
• OLDERADO: 1ZV6 Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2005-06-01 
• Released Date: 2006-03-21 
Deposition Author(s): Jiang, Z.G., McKnight, C.J.

Revision History 

• Version 1.0: 2006-03-21
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance