3HSF

HEAT SHOCK TRANSCRIPTION FACTOR (HSF)

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

Classification: TRANSCRIPTION REGULATION
Organism(s): Kluyveromyces lactis
Expression System: Escherichia coli
Mutation(s): No

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.

Experimental Data Snapshot

Method: SOLUTION NMR
Conformers Submitted: 30

wwPDB Validation3D Report Full Report

This is version 1.2 of the entry. See complete history.

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 Search on PubMed
DOI: 10.1006/jmbi.1995.0649
Structures With Same Primary Citation

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.

Related Citations:

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

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

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	Mutation(s): 0
Find proteins for P22121 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)) Explore P22121 Go to UniProtKB: P22121
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