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SciCrunch Registry is a curated repository of scientific resources, with a focus on biomedical resources, including tools, databases, and core facilities - visit SciCrunch to register your resource.

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Resource Name Proper Citation Abbreviations Resource Type Description Keywords Resource Relationships Related Condition Funding Defining Citation Availability Specification URL Alternate IDs Alternate URLs Old URLs Parent Organization Resource ID Synonyms Record Last Update Mentions Count
siDirect
 
Resource Report
Resource Website
100+ mentions
siDirect (RRID:SCR_004853) service resource, production service resource, analysis service resource, data analysis service siDirect 2.0 provides functional and off-target minimized siRNA design for mammalian RNAi. The previous version of our software designed functional siRNAs by considering the relationship between siRNA sequence and RNAi activity, and provided them along with the enumeration of potential off-target gene candidates by using a fast and sensitive homology search algorithm. In the new version, the siRNA design algorithm is extensively updated to eliminate off-target effects by reflecting our recent finding that the capability of siRNA to induce off-target effect is highly correlated to the thermodynamic stability, or the melting temperature (Tm), of the seed-target duplex, which is formed between the nucleotides positioned at 2-8 from the 5'' end of the siRNA guide strand and its target mRNA. Selection of siRNAs with lower seed-target duplex stabilities (benchmark Tm < 21.5 degrees C) followed by the elimination of unrelated transcripts with nearly perfect match should minimize the off-target effects. siDirect 2.0 provides functional, target-specific siRNA design with the updated algorithm which significantly reduces off-target silencing. When the candidate functional siRNAs could form seed-target duplexes with Tm values below 21.5 degrees C, and their 19-nt regions spanning positions 2-20 of both strands have at least two mismatches to any other non-targeted transcripts, siDirect 2.0 can design at least one qualified siRNA for > 94% of human mRNA sequences in RefSeq. Enter an accession number and retrieve sequence or Paste in a nucleotide sequence. has parent organization: University of Tokyo; Tokyo; Japan Special Coordination Fund for Promoting Science and Technology ;
Ministry of Education Culture Sports Science and Technology of Japan ;
Grant-in-Aid for Scientific Research on Priority Areas 12208003
PMID:19948054
PMID:15215364
nlx_83672 SCR_004853 2026-07-30 09:27:07 243
University of Tokyo; Tokyo; Japan
 
Resource Report
Resource Website
University of Tokyo; Tokyo; Japan (RRID:SCR_011731) university, institution uses: ShareLaTeX
is related to: ShareLaTeX
is parent organization of: MAboya Gene Expression Patterns and Sequence Tags
is parent organization of: 5 prime end Serial Analysis of Gene Expression Database
is parent organization of: DBTBS
is parent organization of: Full-Malaria: Malaria Full-Length cDNA Database
is parent organization of: DBTSS: Database of Transcriptional Start Sites
is parent organization of: Autophagy Database
is parent organization of: MachiBase
is parent organization of: siDirect
is parent organization of: U-Compare
is parent organization of: FreClu
is parent organization of: TogoTV
is parent organization of: UT Genome Browser (Medaka)
is parent organization of: PoSSuM
is parent organization of: MEDIE
is parent organization of: Cancer Genomics Project
is parent organization of: Comparasite: full length cDNA database
is parent organization of: DataBase of Tunicate Gene Regulation
is parent organization of: PiSITE: Database of Protein interaction SITEs
is parent organization of: SCMD - Saccharomyces cerevisiae Morphological Database
is parent organization of: Kinase Pathway Database
is parent organization of: Silkworm Genome Database
is parent organization of: TRhist
is parent organization of: UTGB Toolkit
is parent organization of: DROMPA
is parent organization of: Japanese Single Nucleotide Polymorphisms
is parent organization of: SBM DB
is parent organization of: TCC
is parent organization of: EBCall
is parent organization of: GENIA Project: Mining literature for knowledge in molecular biology
is parent organization of: brat rapid annotation tool
is parent organization of: KEGG
SCR_011731 2026-07-27 09:33:56 0

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