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. 1990 Dec;9(12):4037–4044. doi: 10.1002/j.1460-2075.1990.tb07625.x

Excision of the En/Spm transposable element of Zea mays requires two element-encoded proteins.

M Frey 1, J Reinecke 1, S Grant 1, H Saedler 1, A Gierl 1
PMCID: PMC552176  PMID: 2174354

Abstract

An excision assay system for En/Spm was developed in transgenic tobacco. The characteristics of excision and integration are similar to the natural system of Zea mays. In this transgenic model system two En/Spm encoded trans-acting functions, TNPA and TNPD, are required for excision. A biochemical model for transposition is proposed that might also be applicable to other transposable elements.

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