The length of the sequence you can type in is restricted to a fairly short length (typically less than 255 characters). This length restriction is not a property of the EMBOSS package, but of the computer system you are using. This is because, as you type in response to a prompt from this program, what you type is stored in the computer operating system before being handed over to the program. There is often a limit of less than 255 characters on the length of a response that a computer system will allow you to give.
Despite this restriction, it is expected that this program will be a useful and easy way of constructing new sequence files.
(You wouldn't want to type a long sequence in by hand, anyway, would you?)
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