2MSY

Solution structure of Hox homeodomain


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural insight into the interaction between the Hox and HMGB1 and understanding of the HMGB1-enhancing effect of Hox-DNA binding.

Kim, H.H.Park, S.J.Han, J.H.Pathak, C.Cheong, H.K.Lee, B.J.

(2015) Biochim.Biophys.Acta 1854: 449-459

  • DOI: 10.1016/j.bbapap.2015.02.009

  • PubMed Abstract: 
  • The Hox DNA binding domain, the homeodomain, plays critical roles in genetic control of development and cell fate determination. The variable regulatory functions of Hox proteins are accomplished by binding to target DNA sequences and collaborating p ...

    The Hox DNA binding domain, the homeodomain, plays critical roles in genetic control of development and cell fate determination. The variable regulatory functions of Hox proteins are accomplished by binding to target DNA sequences and collaborating protein partners that includes human high mobility group B1 (HMGB1). To better understand the interaction between Hox and HMGB1 and the facilitation of Hox-DNA binding by HMGB1, we solved the solution structure of the homeodomain of Hox including the N-terminal arm region (Hoxc9DBD hereafter). In addition, the details of the interaction between these two proteins, as well as DNA binding of the Hox-HMGB1 complex, were investigated by NMR, ITC, and EMSA. The results suggest that binding of the HMGB1 A-box to Hoxc9DBD makes the loop-1 (loop preceding helix-2 of Hoxc9DBD) more access to DNA backbone, which facilitate Hox-DNA binding with enhanced affinity.


    Organizational Affiliation

    Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Gwanak-gu, Seoul 151-742, Republic of Korea.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Homeobox protein Hox-C9
A
68Homo sapiensGene Names: HOXC9 (HOX3B)
Find proteins for P31274 (Homo sapiens)
Go to Gene View: HOXC9
Go to UniProtKB:  P31274
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-09-16
    Type: Initial release
  • Version 1.1: 2015-10-07
    Type: Other