NCBI數據庫文件擴展名解析

搜索摘抄來的：

http://defindit.com/readme_files/ncbi_file_extension_format.html

For more details, contact the NCBI help desk:

info@ncbi.nlm.nih.gov


.asn	genome record in asn.1 format 
.faa	protein sequences in fasta format, text file
.ffn	protein coding portions of the genome segments
.fna	genome fasta sequence
.frn	rna coding portions of the genome segments
.gbk	genome in genbank file format 
.gff	genome features
.ptt	protein table
.rnt	rna table
.rpt	summary report
.val	binary file (genome project?)

Other extensions, and my understanding of their meaning:

.gb     Genbank?
.gpff   Genbank protein