VIRsiRNAdb

SpecificityServer - An siRNA design program for determining siRNA specificity
Automatic recommendation
OK - siRNA is specific for both sense and antisense (guide) strands

2 hits were found for CCGGUCGAUGUAUGUCUUG (0 guide strand hits and 2 sense strand hits.)

Hits to Sense strand

Accession

Gene

Start

End

Details of mismatches

Spec. Score

Mismatches

Contiguous

Jackson style specificity

Hits similar gene

HSP Score

HSP % Identity

HSP length

Gene Length

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

XM_938245

PLXNB2

3969

3987

C

A

A

G

A

C

c

U

A

C

A

c

C

G

A

C

C

G

c

-5

3

6

false

<90%

6383

XM_371474

PLXNB2

4020

4038

C

A

A

G

A

C

c

U

A

C

A

c

C

G

A

C

C

G

c

-5

3

6

false

<90%

6434

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3 prime UTR Seed matches

Hits to same gene : 0
Hits to other genes : 0
View matched accessions

3 prime seed match details

Accession

Gene name

Hits to this gene

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Immunostimulatory motif search results

UGUGU - Judge et al. Sequence-dependent stimulation of the mammalian innate immune response by synthetic siRNA. Nat Biotechnol. 2005 Apr;23(4):457-62. (PMID: 15778705)
No Immunostimulatory motif found (UGUGU).

GUCCUUCAA - Hornung et al. Sequence-specific potent induction of IFN-alpha by short interfering RNA in plasmacytoid dendritic cells through TLR7. Nat Med. 2005 Mar;11(3):263-70. Epub 2005 Feb 20. (PMID: 15723075)
No Immunostimulatory motif found (GUCCUUCAA).

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Settings used for search

Scores were calculated using scoring scheme SS1
Using AVG scoring mode.

Hit scores

Parameter	Spec. Score cut-off	Colour	Comment
Hit to same gene		Colour	Hits to the same accession or genes with 100 percent identity (i.e. likely transcript variants). It is advisable to always check the genes hit.
High scoring hit	≥80	Colour	Hits are very likely to cause an off-target effect
Medium scoring hit	<80¸≥40	Colour	Hits with a small chance of causing an off target effect.
Low scoring hit		Colour	Hits very unlikely to cause an off-target effect

The mismatches are colour coded based on the weighting of that position.

Cut-off	Colour
Match	Colour
Wobble base pairs (G-U)	Colour
Critical bases (none)	Colour
0.6 bits	Colour
0.4 bits	Colour
0.2 bits	Colour

About SpecificityServer

SpecificityServer is designed to help you identify potential non-specific matches to your siRNA. It incorporates the latest information about non-specific matches (sequence-specific only).

Designed by: Alistair Chalk, Quan Du, Zicai Liang and Erik L.L. Sonnhammer

For more details about the algorithm "siRNA specificity searching incorporating mismatch tolerance data" Bioinformatics (2008) 24 (10): 1316-1317