Everyone makes minor modifications to standard methods. Do not describe standard materials and methods or modifications unless they have significant and demonstrable utility. Do not duplicate descriptions of methodology in the figure legends. Words or letters to be printed in italics should either be in italics or underlined. The metric system should be used throughout.
Maximum length is four printed pages, including one or two figures.
Only the salient points of a long DNA sequence should be published, as the whole sequence will be available from a computer database. The title, authorship and affiliations will be in the standard format of the journal. The text should not be sectioned, except for references. Essential experimental details may be incorporated into a figure legend. To facilitate rapid publication, authors will be expected to supply high-quality copy and expedite any necessary revisions, although decisions will normally be yes or no, based on the quality and appropriateness of the initial submission.