Biological Assembly 1  

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - AB 

Biological assembly 1 assigned by authors and generated by PQS (software)

Macromolecule Content

• Total Structure Weight: 42897.89 
• Atom Count: 2743 
• Residue Count: 287 
• Unique protein chains: 2
• Unique nucleic acid chains: 2

1GT0

Crystal structure of a POU/HMG/DNA ternary complex

• DOI: 10.2210/pdb1GT0/pdb
• NDB: NA0261

• Classification: TRANSCRIPTION
• Organism(s): Mus musculus, Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): 2 


• Deposited: 2002-01-09 Released: 2003-01-30 
• Deposition Author(s): Remenyi, A., Wilmanns, M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.6 Å
• R-Value Free: 0.285 
• R-Value Work: 0.232 

Literature

Crystal Structure of a POU/Hmg/DNA Ternary Complex Suggests Differential Assembly of Oct4 and Sox2 on Two Enhancers

Remenyi, A., Lins, K., Nissen, L.J., Reinbold, R., Scholer, H.R., Wilmanns, M.

(2003) Genes Dev. 17: 2048

• PubMed: 12923055 
• DOI: 10.1101/gad.269303


• PubMed Abstract: 
  

Members of the POU and SOX transcription factor families exemplify the partnerships established between various transcriptional regulators during early embryonic development. Although functional cooperativity between key regulator proteins is pivotal for milestone decisions in mammalian development, little is known about the underlying molecular mechanisms. In this study, we focus on two transcription factors, Oct4 and Sox2, as their combination on DNA is considered to direct the establishment of the first three lineages in the mammalian embryo. Using experimental high-resolution structure determination, followed by model building and experimental validation, we found that Oct4 and Sox2 were able to dimerize onto DNA in distinct conformational arrangements. We demonstrate that the DNA enhancer region of their target genes is responsible for the correct spatial alignment of glue-like interaction domains on their surface. Interestingly, these surfaces frequently have redundant functions and are instrumental in recruiting various interacting protein partners.

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Organizational Affiliation: 

Gene Expression Program, EMBL, 69117 Heidelberg, Germany. [e-mail]

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details
OCTAMER-BINDING TRANSCRIPTION FACTOR 1	C	159	Homo sapiens	Mutations: S61C, S149C Gene Names: POU2F1 (OCT1, OTF1)
Find proteins for P14859 (Homo sapiens) Go to Gene View: POU2F1 Go to UniProtKB:  P14859

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details
TRANSCRIPTION FACTOR SOX-2	D	80	Mus musculus	Gene Names: Sox2 (Sox-2)
Find proteins for P48432 (Mus musculus) Go to UniProtKB:  P48432

Entity ID: 1
Molecule	Chains	Length	Organism
5'-D(*TP*TP*CP*TP*TP*TP*GP*TP*TP*TP* GP*GP*AP* TP*GP*CP*TP*AP*AP*TP*GP*GP*GP*A)-3'	A	24	Mus musculus

Entity ID: 2
Molecule	Chains	Length	Organism
5'-D(*AP*TP*CP*CP*CP*AP*TP*TP*AP*GP* CP*AP*TP*CP*CP*AP*AP*AP*CP*AP*AP*AP*GP*A)-3'	B	24	Mus musculus

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.6 Å
• R-Value Free: 0.285 
• R-Value Work: 0.232 
• Space Group: P 3₁ 2 1

Unit Cell:

Length (Å)	Angle (°)
a = 72.800	α = 90.00
b = 72.800	β = 90.00
c = 172.400	γ = 120.00

Software Package:

Software Name	Purpose
SHELX	phasing
SHARP	phasing
CNS	refinement
SCALEPACK	data scaling
DENZO	data reduction

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2002-01-09 
• Released Date: 2003-01-30 
• Deposition Author(s): Remenyi, A., Wilmanns, M.

Revision History 

• Version 1.0: 2003-01-30
  Type: Initial release
• Version 1.1: 2012-11-14
  Type: Database references, Derived calculations, Non-polymer description, Other, Refinement description