Genomic Organization of heavy-and light-chain segments λlight chain L1 V1 22 K light chain L1 Vk1 L2 Vk2 L3 V3 L V-40 Jx1-5 ■H==； Heavy chain L11L2M2L33 H451 Dm1-27 JH1-6 H:t0一00 1997 Current Biology Ltd./Garland Publishing.Inc Genomic Organization of heavy- and light-chain segments