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1d29
From Proteopedia
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'''CRYSTAL STRUCTURE ANALYSIS OF THE B-DNA DODECAMER CGTGAATTCACG''' | '''CRYSTAL STRUCTURE ANALYSIS OF THE B-DNA DODECAMER CGTGAATTCACG''' | ||
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==About this Structure== | ==About this Structure== | ||
| - | + | Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1D29 OCA]. | |
==Reference== | ==Reference== | ||
Crystal structure analysis of the B-DNA dodecamer CGTGAATTCACG., Larsen TA, Kopka ML, Dickerson RE, Biochemistry. 1991 May 7;30(18):4443-9. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/1850624 1850624] | Crystal structure analysis of the B-DNA dodecamer CGTGAATTCACG., Larsen TA, Kopka ML, Dickerson RE, Biochemistry. 1991 May 7;30(18):4443-9. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/1850624 1850624] | ||
| - | [[Category: Protein complex]] | ||
[[Category: Dickerson, R E.]] | [[Category: Dickerson, R E.]] | ||
[[Category: Kopka, M L.]] | [[Category: Kopka, M L.]] | ||
[[Category: Larsen, T A.]] | [[Category: Larsen, T A.]] | ||
| - | [[Category: | + | [[Category: B-dna]] |
| - | [[Category: | + | [[Category: Double helix]] |
| - | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 13:22:02 2008'' | |
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | |
Revision as of 10:22, 2 May 2008
CRYSTAL STRUCTURE ANALYSIS OF THE B-DNA DODECAMER CGTGAATTCACG
Overview
The crystal structure of the DNA dodecamer C-G-T-G-A-A-T-T-C-A-C-G has been determined at a resolution of 2.5 A, with a final R factor of 15.8% for 1475 nonzero reflections measured at 0 degrees C. The structure is isomorphous with that of the Drew dodecamer, with the space group P2(1)2(1)2(1) and cell dimensions of a = 24.94 A, b = 40.78 A, and c = 66.13 A. The asymmetric unit contains all 12 base pairs of the B-DNA double helix and 36 water molecules. The structure of C-G-T-G-A-A-T-T-C-A-C-G is very similar to that of C-G-C-G-A-A-T-T-C-G-C-G, with no major alterations in helix parameters. Water peaks in the refined structure appear to represent a selection of peaks that were observed in the Drew dodecamer. The minor-groove spine of hydration at 2.5 A is fragmentary, but as Narendra et al. (1991) [Biochemistry (following paper in this issue)] have observed, lowering the temperature leads to a more complete representation of the spine.
About this Structure
Full crystallographic information is available from OCA.
Reference
Crystal structure analysis of the B-DNA dodecamer CGTGAATTCACG., Larsen TA, Kopka ML, Dickerson RE, Biochemistry. 1991 May 7;30(18):4443-9. PMID:1850624 Page seeded by OCA on Fri May 2 13:22:02 2008
