RecBCD pathway

Shen, P. Huang, H.V. (1993). Effect of base-pair mismatches on recombination via the RecBCD pathway. Molec. Gen. Genetics 218, 358-360. 

FIGURE 25-37 Models for recombinational DNA repair of stalled replication forks. The replication fork collapses on encountering a DNA lesion (left) or strand break (right). Recombination enzymes promote the DNA strand transfers needed to repair the branched DNA structure at the replication fork. A lesion in a single-strand gap is repaired in a reaction requiring the RecF, RecO, and RecR proteins. Double-strand breaks are repaired in a pathway requiring the RecBCD enzyme. Both pathways require RecA. Recombination intermediates... 

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