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| Title: | | CRYSTAL STRUCTURE OF THE LACI FAMILY MEMBER, PURR, BOUND TO DNA: MINOR GROOVE BINDING BY ALPHA HELICES | |
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| Molecular Description: | PURINE REPRESSOR/DNA COMPLEX
GUANINE |
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| Structural Features: | B DOUBLE HELIX, DNA IS KINKED 45 DEGREE AT THE CENTER |
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| Nucleic Acid Sequence: |
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| Chain | B: | | (DT) (DA) (DC) (DG) (DC) (DA) (DA) (DA) (DC) (DG) (DT) (DT) (DT) (DG) (DC) (DG) (DT) |
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| Protein Sequence: |
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| Primary Citation: | Schumacher, M.A., Choi, K.Y., Zalkin, H., Brennan, R.G.
Crystal structure of LacI member, PurR, bound to DNA: minor groove binding by alpha helices.
Science
, 266,
pp. 763 - 770, 1994.
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| Experimental Information: | X-RAY DIFFRACTION |
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| Space Group: |
C
2
2
21
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| Cell Constants: |
| a = 175.930 | b = 95.060 | c = 81.530 | (Ångstroms) |
 = 90.00 |  = 90.00 |  = 90.00 | (degrees) |
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| Refinement: | The structure was refined using the TNT program.
The R value is
17.7
for 20405 reflections
in the resolution range 10.000 to
2.600 Ångstroms
with Fobs > 1.000 sigma(Fobs).
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