Uql

.generating DNA fragments having hairpin ends and blunt ends.

V segment

RAG! "RAG2

"DNA repair proteins

(Proteins that repair DNA open the hairpins,.

J segment

J segment process the ends, process the ends,

.and join the gene segments.

121.19 Somatic recombination is brought about by RAG1 and RAG2 proteins and DNA repair proteins.

Surface receptors

Antigen-binding region

Surface receptors

Antigen-binding region

Variable region

T cell

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