The name of the promoter used to express this mRNA: RSV
The in vivo produced transcripts are heterogeneous (due to any of promoter?/splicing?/cleavage?/breakage?): no
The in vivo produced heterogeneous transcripts occur due to alternative splicing: no
A promoter reported in cDNA corresponding to IRES sequence: no
Summary of possible issues when IRES cDNA is experimentally transcribed in vivo:
Summary of experiments studying integrity of the in vivo transcripts in a particular host:
Integrity (uniformity) of mRNA tested using Northern-blot: not_tested
Integrity (uniformity) of mRNA tested using RNase protection: not_tested
Integrity (uniformity) of mRNA tested using 5'-RACE: not_tested
Integrity (uniformity) of mRNA tested using primer extension : not_tested
Integrity (uniformity) of mRNA tested using RT-PCR: not_tested
Integrity (uniformity) of mRNA tested using real-time quantitative polymerase chain reaction (rtqPCR): not_tested
Integrity (uniformity) of mRNA tested using RNAi: not_tested
Integrity (uniformity) of mRNA tested using S1 nuclease mapping: not_tested
Cryptic promoter presence was confirmed by expression from a promoter-less plasmid: no_promoter_confirmed
Cryptic promoter presence was confirmed in an experimental setup involving inducible promoter: not_tested
Integrity (uniformity) of mRNA molecules or possible promoter presence expressed in vivo was tested using another method, please specify in Remarks: not_tested
The IRES absolute position (the range includes START and STOP codons or their equivalents): 842-1160
How IRES boundaries were determined: experimentally_determined
5'-end of IRES relative to last base of the STOP codon of the upstream ORF: 52
3'-end of IRES relative to last base of the STOP codon of the upstream ORF: 370
5'-end of IRES relative to first base of the START codon of the downstream ORF: -320
3'-end of IRES relative to first base of the START codon of the downstream ORF: -2
The sequence of IRES region aligned to its secondary structure (if available):
Remarks:
Although the article states the 5'-UTR of ELH (bases 1-313) have been cloned into the vector W. Sossin who
provided us with the sequence annotated 319nt as the ELH 5'-UTR insert. We preferred the later annotation.
The relative translation efficiency in % of this IRES: 100.000
Name of the plasmid used as the negative control. LR
The relative translation efficiency in % of the negative control: 17.800
The effect of 5'-cap analogs on translation: not tested
Rapamycin affects translation: not tested
Type of RNA subject to translation: endogenous_nuclear_RNA_Pol_II_transcript
Remarks:
The exact experimental temperature has not been stated in the article. However, it seems A. californica
lays eggs in the temperature around 20 oC, while about 15 oC does not. The egg-laying activity switch is
attributed to the presence of the egg-laying hormone. The sequence of the negative control plasmid with
reverse-oriented ELH insert is not available. Data from Suppl. Fig. 1.