1SRS | pdb_00001srs

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

• PDB DOI: https://doi.org/10.2210/pdb1SRS/pdb
• NAKB: 1SRS

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


• 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: 3.20 Å
• R-Value Work: 
  0.228 (Depositor) 
• R-Value Observed: 
  0.228 (Depositor) 

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: https://doi.org/10.1038/376490a0
• Primary Citation Related Structures: 
  1SRS


• 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.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 32.32 kDa 
• Atom Count: 2,074 
• Modeled Residue Count: 202 
• Deposited Residue Count: 222 
• Unique protein chains: 1
• Unique nucleic acid chains: 2

Macromolecules

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
PROTEIN (SERUM RESPONSE FACTOR (SRF))	C [auth A], D [auth B]	92	Homo sapiens	Mutation(s): 0  Gene Names: SRF CORE (RESIDUES 132-223)
UniProt & NIH Common Fund Data Resources
Find proteins for P11831 (Homo sapiens) Explore P11831  Go to UniProtKB:  P11831
PHAROS:  P11831 GTEx:  ENSG00000112658

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

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.20 Å
• R-Value Work:  0.228 (Depositor) 
• R-Value Observed: 0.228 (Depositor) 

Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 106.84	α = 90
b = 106.84	β = 90
c = 76.88	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	refinement

Structure Validation

Entry History 

Deposition Data

• 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
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2024-02-14
  Changes: Data collection, Database references, Derived calculations