Biological Assembly 1  

 3D View: Structure

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 18.64 kDa 
• Atom Count: 1310 
• Residue Count: 163 
• Unique protein chains: 1

2L6U

Solution NMR Structure of Med25(391-543) Comprising the Activator-Interacting Domain (ACID) of Human Mediator Subuniti 25. Northeast Structural Genomics Consortium Target HR6188A

• DOI: 10.2210/pdb2L6U/pdb
• BMRB: 17323

• Classification: TRANSCRIPTION
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2010-11-24 Released: 2011-01-12 
• Deposition Author(s): Eletsky, A., Ryuechan, W.T., Sukumaran, D.K., Shastry, R., Ciccosanti, C., Janjua, H., Acton, T.B., Xiao, R., Everett, J.K., Montelione, G.T., Szyperski, T., Northeast Structural Genomics Consortium (NESG)

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: target function 

Literature

Solution NMR structure of MED25(391-543) comprising the activator-interacting domain (ACID) of human mediator subunit 25.

Eletsky, A., Ruyechan, W.T., Xiao, R., Acton, T.B., Montelione, G.T., Szyperski, T.

(2011) J Struct Funct Genomics 12: 159-166

• PubMed: 21785987 
• DOI: 10.1007/s10969-011-9115-1
• Primary Citation of Related Structures:  
  2L6U


• PubMed Abstract: 
  

The solution NMR structure of protein MED25(391-543), comprising the activator interacting domain (ACID) of subunit 25 of the human mediator, is presented along with the measurement of polypeptide backbone heteronuclear 15N-{1H} NOEs to identify fast internal motional modes. This domain interacts with the acidic transactivation domains of Herpes simplex type 1 (HSV-1) protein VP16 and the Varicella-zoster virus (VZV) major transactivator protein IE62, which initiate transcription of viral genes. The structure is similar to the β-barrel domains of the human protein Ku and the SPOC domain of human protein SHARP, and provides a starting point to understand the structural biology of initiation of HSV-1 and VZV gene activation. Homology models built for the two ACID domains of the prostate tumor overexpressed (PTOV1) protein using the structure of MED25(391-543) as a template suggest that differential biological activities of the ACID domains in MED25 and PTOV1 arise from modulation of quite similar protein-protein interactions by variable residues grouped around highly conserved charged surface areas.

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Organizational Affiliation: 

Department of Chemistry, The State University of New York at Buffalo, Buffalo, NY 14260, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Mediator complex subunit MED25	A	163	Homo sapiens	Mutation(s): 0  Gene Names: MED25, ACID1, ARC92, PTOV2, TCBAP0758
Find proteins for Q71SY5 (Homo sapiens) Explore Q71SY5  Go to UniProtKB:  Q71SY5
NIH Common Fund Data Resources
PHAROS:  Q71SY5 GTEx:  ENSG00000104973

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: target function 
• OLDERADO: 2L6U Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2010-11-24 
• Released Date: 2011-01-12 
Deposition Author(s): Eletsky, A., Ryuechan, W.T., Sukumaran, D.K., Shastry, R., Ciccosanti, C., Janjua, H., Acton, T.B., Xiao, R., Everett, J.K., Montelione, G.T., Szyperski, T., Northeast Structural Genomics Consortium (NESG)

Revision History 

• Version 1.0: 2011-01-12
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2011-09-28
  Changes: Database references
• Version 1.3: 2012-02-22
  Changes: Structure summary
• Version 1.4: 2020-02-05
  Changes: Data collection, Database references, Other