Über die Rezeptorsubstanz für den Phagen T5

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Abstract
Attachment of the T5 tailtip to its specific receptor required an activation energy of 11 kcal/M and was irreversible. It is this attraction which, probably through formation of covalent bonds between phage and receptor, caused inactivation of the phage particle. The subsequent ejection of its deoxyribonucleic acid was merely accessory in this respect. In contrast, the bonds between phage T1 and its specific receptor were easily dissociable, the phage was released intact, and the binding required an activation energy of only 4 kcal/M. Morphogenetic implications of an autocatalytic formation of specific covalent bonds between macromolecular complexes are discussed.

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