Biological Assembly 1  

 3D View: Structure

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Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 32321.66 
• Atom Count: 2074 
• Residue Count: 222 
• Unique protein chains: 1
• Unique nucleic acid chains: 2

1SRS

SERUM RESPONSE FACTOR (SRF) CORE COMPLEXED WITH SPECIFIC SRE DNA

• DOI: 10.2210/pdb1SRS/pdb
• NDB: PDT021

• Classification: TRANSCRIPTION/DNA
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)


• Deposited: 1995-07-28 Released: 1995-07-28 
• Deposition Author(s): Pellegrini, L., Tan, S., Richmond, T.J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.2 Å
• R-Value Work: 0.228 

Literature

Structure of serum response factor core bound to DNA.

Pellegrini, L., Tan, S., Richmond, T.J.

(1995) Nature 376: 490-498

• PubMed: 7637780 
• DOI: 10.1038/376490a0


• PubMed Abstract: 
  

The human serum response factor is a transcription factor belonging to the MADS domain protein family with members characterized from the plant and animal kingdoms. The X-ray crystal structure of the serum response factor core in a specific-recognition DNA complex shows that the functions of DNA binding, dimerization and accessory-factor interaction are compactly integrated into a novel protein unit. The intrinsic and induced conformation of the serum response element DNA is the principal DNA feature recognized in the specific complex.

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Organizational Affiliation: 

Institut für Molekularbiologie und Biophysik, ETH-Hönggerberg, Zürich, Switzerland.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details
PROTEIN (SERUM RESPONSE FACTOR (SRF))	A, B	92	Homo sapiens	Mutation(s): 0  Gene Names: SRF
Find proteins for P11831 (Homo sapiens) Go to Gene View: SRF Go to UniProtKB:  P11831

Entity ID: 1
Molecule	Chains	Length	Organism
DNA (5'-D(*CP*CP*(5IU)P*TP*CP*CP*TP*AP*AP*TP*TP*AP*GP*GP*CP*CP*AP*TP*G)-3')	W	19	N/A

Entity ID: 2
Molecule	Chains	Length	Organism
DNA (5'-D(*CP*CP*AP*TP*GP*GP*CP*CP*TP*AP*AP*TP*TP*AP*GP*GP*A P*AP*G)-3')	C	19	N/A

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
5IU	W	DNA LINKING	C9 H12 I N2 O8 P		DU

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.2 Å
• R-Value Work: 0.228 
• Space Group: P 4₃ 2₁ 2

Unit Cell:

Length (Å)	Angle (°)
a = 106.840	α = 90.00
b = 106.840	β = 90.00
c = 76.880	γ = 90.00

Software Package:

Software Name	Purpose
X-PLOR	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1995-07-28 
• Released Date: 1995-07-28 
• Deposition Author(s): Pellegrini, L., Tan, S., Richmond, T.J.

Revision History 

• Version 1.0: 1995-07-28
  Type: Initial release
• Version 1.1: 2008-05-22
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance