| Range |
~2 g/cm^3
|
| Organism |
Bacteria Escherichia coli |
| Reference |
Bhinyo Panijpan, The buoyant density of DNA and the G + C content, J. Chem. Educ., 1977, 54 (3), p 172
DOI: 10.1021/ed054p172 p.172 right columnPubMed ID838782
|
| Comments |
P.172 right column: "The importance of hydration (and salts) will be appreciated when one learns that the unhydrated density of E. coli DNA is about 2, whereas its buoyant density in concentrated CsCl is 1.709 and in concentrated Cs2SO4 is 1.423 (refs 4,5).
In fact, it has been estimated that at
water activity of 1 (very dilute salt
solutions), there are about 50 moles of
water bound per mole nucleotide and at
water activity of 0.78 (7.7M CsCl) there
are about 8 moles of water hound per mole nucleotide of phage T4 DNA." |
| Entered by |
Uri M |
| ID |
107858 |