请教前辈关于Genbank的Accession number的问题

发布网友发布时间：2022-04-30 08:01

共2个回答

懂视网时间：2022-05-04 18:18

Accession numbers are identifiers for a sequence, for example P123456. They can have version numbers if suffixed with a "." and a number, for example P123456.2. This aids distinguishing between older and newer versions of a sequence, and to track which actual sequence was used in an analysis.

NCBI Reference sequences have their own syntax.

Accessions are allocated in batches to the different sequence repositories DDBJ, EMBL Database, and NCBI. Table 1 shows the format of some unversioned accession numbers.

Table 1: Some Accession Number Formats

Database	Regular Expression	Perl Regular Expression
RefSeq	[:alpha]{2}_[:digit]{6,9} or NZ_[:alpha]{4} [:digit]{6,9}	[A-Z]{2}_d{6,9} or NZ_[A-Z]{4}d{6,9}
Swissprot	[OPQ][:digit][:alnum]{3}[:digit]
GenBank/EMBL/DDBJ	[:alpha][:digit]{5} or [:alpha]{2}[:digit]{6}	[A-Z]d{5} or [A-Z]{2}d{6}
PRF	[:digit]{6,7} [:alpha]	d{6,7}[A-Z]
PDB	[:digit][:alpha]{3}	d[A-Z]{3}
MMDB	[:digit]{4}	d{4}
GenBank GI	[:digit]{5,}	d{5,}

热心网友时间：2022-05-04 15:26

　　据我说知，accession number 就好像是一个entry的名字, 代号。方便人们在发表文献时引用在database里的基因的sequence或是amino acid sequence. 那么，阅读的人就可以上database寻找那个sequence. 而GenBank database应该是在NCBI里。
要找accession number的话，你可以在gene entrez 的介面那里，输入你要找的gene，然后就能够知道关于那个gene的资料，当然还有accession number。
你也能够看accession number就能知道那个entry的类型了。