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   IV Sequence Quality Filter System (Q-Filter): To classify IV nucleotide sequences into 7 categories according to certain criteria (see Q-Filter criteria). UTR search and    download are also provided here.

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Nucleotide sequence   3'UTR   5'UTR  
Q-Filter Categories GenomeSet
IV Type:
A B C

Subtype
Host:Not
Country/Region:Not
Segment:Not
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Year: From to    Length: Min Max    Full-length sequence only    BGI Data

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This classification system is for nucleotide sequence. It classify nucleotide sequences according to sequence content (CDS, 5ĄŻUTR, 3ĄŻUTR) and integrity (C: complete or P: partial). For segment which has more than one CDS, such as PB1, M and NS, all CDS are considered. more..
   C1:Complete CDS P1:Partial CDS
   C2:5'UTR+complete CDS P2:5'UTR+partial CDS
   C3:3'UTR+complete CDS P3:3'UTR+partial CDS
   C4:5'UTR+complete    CDS+3'UTR
 

IVDB is supported by institutional grant from Beijing Institute of Genomics, CAS  Feedback