User:Eileen Molzberger/Sandbox 1

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Contents 1 RecA 2 Introduction 3 RecA Function in DNA Repair 4 Strand Exchange 5 RecA function in the SOS Response 6 Protein Structure

RecA

Introduction

RecA is a protein involved in homologous DNA recombination, and the SOS response in the cell. RecA is important for DNA repair

RecA Function in DNA Repair

DNA is composed to two complementary strands. When one of these strands is damaged, the cell can use the undamaged strand to fill in the missing information. RecA is involved in this type of DNA repair, called recombinational repair. When a break in the DNA arises, RecA binds to the exposed ssDNA with high affinity. RecA monomers bind together form a filament around the DNA; 6 monomers per turn of the RecA helix.

RecA is involved in DNA recombinational DNA repair, where it uses

Strand Exchange

RecA function in the SOS Response

Protein Structure

6 RecA monomers come together to form a filament that wraps around ssDNA.