Ribosomal proteins enhance catalysis in several ways: 1. Structural Stabilization: They provide structural support to the rRNA, ensuring the correct folding and conformation of the catalytic sites. 2. Substrate Binding: Some ribosomal proteins are involved in binding tRNA and mRNA, positioning them correctly for efficient peptide bond formation. 3. Allosteric Regulation: Ribosomal proteins can induce conformational changes in the ribosome, facilitating transitions between different states during translation. 4. Catalytic Assistance: Although the primary catalytic activity is attributed to rRNA, certain ribosomal proteins are believed to participate directly in the catalytic process.