Macromolecule Content

• Total Structure Weight: 12.31 kDa 
• Atom Count: 869 
• Modelled Residue Count: 105 
• Deposited Residue Count: 105 
• Unique protein chains: 2

1G1E

NMR STRUCTURE OF THE HUMAN MAD1 TRANSREPRESSION DOMAIN SID IN COMPLEX WITH MAMMALIAN SIN3A PAH2 DOMAIN

• DOI: 10.2210/pdb1G1E/pdb
• BMRB: 4635

• Classification: TRANSCRIPTION
• Organism(s): Mus musculus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2000-10-11 Released: 2000-12-06 
• Deposition Author(s): Brubaker, K., Cowley, S.M., Huang, K., Eisenman, R.N., Radhakrishnan, I.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 25 
• Conformers Submitted: 15 
• Selection Criteria: structures with favorable non-bond energy,structures with the least restraint violations 

Literature

Solution structure of the interacting domains of the Mad-Sin3 complex: implications for recruitment of a chromatin-modifying complex.

Brubaker, K., Cowley, S.M., Huang, K., Loo, L., Yochum, G.S., Ayer, D.E., Eisenman, R.N., Radhakrishnan, I.

(2000) Cell 103: 655-665

• PubMed: 11106735 
• DOI: 10.1016/s0092-8674(00)00168-9
• Primary Citation of Related Structures:  
  1G1E


• PubMed Abstract: 
  

Gene-specific targeting of the Sin3 corepressor complex by DNA-bound repressors is an important mechanism of gene silencing in eukaryotes. The Sin3 corepressor specifically associates with a diverse group of transcriptional repressors, including members of the Mad family, that play crucial roles in development. The NMR structure of the complex formed by the PAH2 domain of mammalian Sin3A with the transrepression domain (SID) of human Mad1 reveals that both domains undergo mutual folding transitions upon complex formation generating an unusual left-handed four-helix bundle structure and an amphipathic alpha helix, respectively. The SID helix is wedged within a deep hydrophobic pocket defined by two PAH2 helices. Structure-function analyses of the Mad-Sin3 complex provide a basis for understanding the underlying mechanism(s) that lead to gene silencing.

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Organizational Affiliation: 

Department of Biochemistry, Molecular Biology, and Cell Biology, Northwestern University, Evanston, IL 60208, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
MAD1 PROTEIN	A	16	N/A	Mutation(s): 0
Find proteins for Q05195 (Homo sapiens) Explore Q05195  Go to UniProtKB:  Q05195
NIH Common Fund Data Resources
PHAROS:  Q05195 GTEx:  ENSG00000059728

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
SIN3A	B	89	Mus musculus	Mutation(s): 0  Gene Names: Sin3a, Kiaa4126
Find proteins for Q60520 (Mus musculus) Explore Q60520  Go to UniProtKB:  Q60520

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 25 
• Conformers Submitted: 15 
• Selection Criteria: structures with favorable non-bond energy,structures with the least restraint violations 
• OLDERADO: 1G1E Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2000-10-11 
• Released Date: 2000-12-06 
Deposition Author(s): Brubaker, K., Cowley, S.M., Huang, K., Eisenman, R.N., Radhakrishnan, I.

Revision History  

• Version 1.0: 2000-12-06
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance