Condensation of DNA by Trivalent Cations. 2. Effects of Cation Structure (Record no. 46932)
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| fixed length control field | 01822nam a2200193Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250625153907.0 |
| 040 ## - CATALOGING SOURCE | |
| Transcribing agency | CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) | |
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) | B-12725 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT | |
| Title | Condensation of DNA by Trivalent Cations. 2. Effects of Cation Structure |
| 490 0# - SERIES STATEMENT | |
| Volume/sequential designation | BioPolymers, 30(5-6), p.631-643, 1990 |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc. | Electron microscopy is employed to examine DNA aggregates produced by three tripositively charged condensing agents. Spermidine, hexammine cobalt ( I I I ) , and messpermidine (in which the amine groups of spermidine are exhaustively methylated)all produce condensates. The predominant form of condensate observed is toroidal; owever, messpermidine produces a large fraction of rodlike condensates. Distributions of toroidal radii and estimated volumes suggest that the size of condensates depends on the condensing agent employed, its concentration, and the time elapsed after addition of condensing agent. While ligand charge seems to be the major factor in predicting condensing power, ligand structure influences the morphology and dimensions of the particles produced. The ability to form hydrogen bonds is not required to promote condensation, since messpermidine has no NHs. There may be a kinetic barrier to condensation at low messpermidine concentrations. The relative proportions of toroids and rods may depend on the energetic compensation between bending and binding in cyclic structures, or on rate-limiting formation of sharply bent or kinked regions in rods. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Plum, G.E. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Arscott, P.C. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Bloomfield, B.A. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="https://drive.google.com/file/d/19XkZrYmDUpATOMzttWvvocJDs7ldtSzd/view?usp=drivesdk">https://drive.google.com/file/d/19XkZrYmDUpATOMzttWvvocJDs7ldtSzd/view?usp=drivesdk</a> |
| Public note | Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Clasificación local |
| Koha item type | Documentos solicitados |
| Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Collection | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Date last seen | Price effective from | Koha item type |
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| Clasificación local | Ref1 | CICY | CICY | Documento préstamo interbibliotecario | 25.06.2025 | B-12725 | 25.06.2025 | 25.06.2025 | Documentos solicitados |