Macromolecule Content

• Total Structure Weight: 10950.28 
• Atom Count: 774 
• Residue Count: 92 
• Unique protein chains: 1

3HSF

HEAT SHOCK TRANSCRIPTION FACTOR (HSF)

• DOI: 10.2210/pdb3HSF/pdb
• Entry 3HSF supersedes 2HSF

• Classification: TRANSCRIPTION REGULATION
• Organism(s): Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)
• Expression System: Escherichia coli


• Deposited: 1995-08-07 Released: 1995-11-14 
• Deposition Author(s): Damberger, F.F., Pelton, J.G., Liu, C., Cho, H., Harrison, C.J., Nelson, H.C.M., Wemmer, D.E.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Submitted: 30 

Literature

Refined solution structure and dynamics of the DNA-binding domain of the heat shock factor from Kluyveromyces lactis.

Damberger, F.F., Pelton, J.G., Liu, C., Cho, H., Harrison, C.J., Nelson, H.C., Wemmer, D.E.

(1995) J.Mol.Biol. 254: 704-719

• PubMed: 7500344 
• DOI: 10.1006/jmbi.1995.0649


• PubMed Abstract: 
  

The solution structure of the 92 residue (11 kDa) winged helix-turn-helix DNA-binding domain from the kluyveromyces lactis heat shock factor was refined using a total of 932 NOE, 35 phi, 25 chi 1, 5 chi 2 and 44 hydrogen bond restraints. The overall root-mean-square deviation for structured regions was 0.75(+/- 0.15) A. The three-helix bundle and four-stranded beta-sheet are well defined with rmsd of 0.53(+/- 0.10) A and 0.60(+/- 0.17) A, respectively. Helix H2 is underwound and bent near Pro45. The angle between helix H2 and the proposed recognition helix H3 is 96(+/- 6) degrees. Detailed comparisons are made with the X-ray structure of this protein as well as other structural studies on HSF. Overall, the results are consistent with the earlier studies. Differences are related to protein-protein interactions in the crystal and dynamics in solution. Backbone dynamics was investigated via 15N relaxation. The average R1, R2 and NOE values for residues in segments of secondary structure were 1.9(+/- 0.9) s-1, 7.8(+/- 0.9) s-1 and 0.81(+/- 0.05), respectively. The correlation time based on these data was 5.6(+/- 0.4) ns. Motional order parameters were calculated by fitting the relaxation data to one of three models. Low-order parameters were found for residues that comprise the turn between helices H2 and H3 (residues Lys49 to Phe53), and most strikingly, the 16 residue wing (residues Val68 to Arg83). These data are consistent with the lack of long-range NOEs identified in these regions. The data provide a basis for comparison with results of the protein-DNA complex. The relationship between structure and function is discussed.

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Related Citations: 

• Solution Structure of the DNA-Binding Domain of the Heat Shock Transcription Factor Determined by Multidimensional Heteronuclear Magnetic Resonance Spectroscopy
  Damberger, F.F.,Pelton, J.G.,Harrison, C.J.,Nelson, H.C.M.,Wemmer, D.E.
  (1994) Protein Sci. 3: 1806
• Crystal Structure of the DNA Binding Domain of the Heat Shock Transcription Factor
  Harrison, C.J.,Bohm, A.A.,Nelson, H.C.M.
  (1994) Science 263: 224




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Organizational Affiliation: 

Biophysics Graduate Group University of California Berkeley 94720, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
HEAT SHOCK TRANSCRIPTION FACTOR	A	92	Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)	Mutation(s): 0  Gene Names: HSF
Find proteins for P22121 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)) Go to UniProtKB:  P22121

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Submitted: 30 
• Olderado: 3HSF Olderado

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	phasing
X-PLOR	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1995-08-07 
• Released Date: 1995-11-14 
• Deposition Author(s): Damberger, F.F., Pelton, J.G., Liu, C., Cho, H., Harrison, C.J., Nelson, H.C.M., Wemmer, D.E.
• This entry supersedes: 2HSF

Revision History 

• Version 1.0: 1995-11-14
  Type: Initial release
• Version 1.1: 2008-03-25
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance