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PMID:2952887

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Citation

Katsura, I Determination of bacteriophage lambda tail length by a protein ruler. Nature 327:73-5

Abstract

How the size and shape of living structures are determined by genetic information is one of the fundamental problems in biology. Here I describe a study in which the size of a biological supramolecular structure was changed in a predictable way by in vitro genetics, with the size both before and after manipulation being exactly determined. I have studied the tail of bacteriophage lambda, whose length is determined by the length of the 'ruler protein', the product of gene H. The length of the tail can be decreased or increased by deleting the middle part of gene H or by forming a small duplication there, and the length of the tail is proportional to the size of the protein. These results can be regarded as a special case of protein engineering, namely supramolecular protein engineering.

Links

PubMed Online version:10.1038/327073a0

Keywords

Bacteriophage lambda/genetics; Bacteriophage lambda/ultrastructure; Biometry; Chromosome Deletion; Genes, Viral; Mutation; Viral Proteins/genetics; Viral Tail Proteins

Significance

Annotations

Gene product Qualifier GO Term Evidence Code with/from Aspect Extension Notes Status

LAMBD:TMP

GO:0098003: viral tail assembly

ECO:0000315:

P

The researcher isolated thirty mutants with a deletion in the H gene of Lambda. For 18 of these mutants, tails did not assemble (p. 74). This provides evidence that H protein is necessary for tail assembly in Lambda.

complete
CACAO 11773

Notes

See also

References

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