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J Exp Med. 1986 February 1; 163(2): 425–435.
PMCID: PMC2188038

Identification of three new Ig lambda-like genes in man

Abstract

Three new human lambda L chain-like Ig genes are identified by restriction enzyme and nucleotide sequence analysis. Two genes, 14.1 and 16.1, have intact J and C regions, and are potentially functional, with open reading frames. A third gene, 18.1, is a pseudogene. The evolutionary lineage of these genes compared to the known functional locus lambda C1-lambda C6 can be surmised from Southern blot and nucleotide homologies. This study demonstrates that the human lambda gene family is more complex than previously recognized.

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