What is a GI number?

The GenInfo Identifier, commonly abbreviated as GI, serves as a unique sequence identifier for both nucleotide sequences and their corresponding protein translations. This system ensures that each sequence can be accurately referenced and distinguished from others.

The GI is a numeric value, comprising of one or more digits, which acts as a label for the sequence. This numeric identifier simplifies the process of tracking and managing vast amounts of genetic information.

It is important to note that the protein translation and the nucleotide sequence, even if they are part of the same record, will be assigned separate GI numbers. This practice ensures that both the genetic code and its translated product can be individually identified and analyzed.

The use of GIs in the field of genetics and bioinformatics has revolutionized the way researchers study and understand the building blocks of life. By providing a standardized method of identifying and referencing sequences, GIs have facilitated collaboration and the sharing of knowledge across disciplines.

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