Glossary of Medical Terms

Our online medical glossary of medical terms and definitions includes definitions for terms related to treatment, and general medicine

LEADER SEQUENCE

In the regulation of gene expression for enzymes concerned with amino acid synthesis in prokaryotes, the leader sequence codes for the leader peptide that contains different residues of the amino acid being regulated. Transcription is closely linked to translation and if translation is retarded by limited supply of amino acyl tRNA for the specific amino acid, the mode of transcription of the leader sequence permits full transcription of the operon genes, otherwise complete transcription of the leader sequence prematurely terminates transcription of the operon. This entry appears with alow from the Vocabulary of Cell and Molecular Biology
fluorescent label   fluorescent microscope   fluorescent screen   fluorescent stain   fluorescent treponemal antibody-absorption test   fluorescin   fluoric   fluoridated teeth   (0)
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