GenInfo Identifier

A GI number (for GenInfo Identifier, sometimes written in lower case, _gi_) is a simple series of digits that are assigned consecutively to each sequence record processed by NCBI. The GI number bears no resemblance to the Version number of the sequence record. Each time a sequence record is changed, it is assigned a new GI number.

GI编号（即GenInfo标识符，有时以小写形式呈现，_gi_）是由NCBI连续分配给每个处理过的序列记录的简单数字序列。GI编号与序列记录的版本号毫无关联。每当序列记录发生变更时，它将被赋予一个新的GI编号。