• 1. INTRODUCTION
• 2. NUCLEOHISTONES
• 2.1. Somatic cell nucleohistones
• 2.2. Spermatozoa nucleohistones
• 3. NUCLEOPROTAMINES
• 3.1. Secondary structure of protamine
• 3.2. Protamine-DNA interactions
• 3.3. Higher order nucleoprotamine structures
• 4. PROTAMINE-LIKE (PL) PROTEINS
• 5. EVOLUTION OF SPERM NUCLEAR BASIC PROTEIN
• 6. CONCLUSIONS
• 7. REFERENCES

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