IRESite record type: plasmid_with_promoter_and_putative_IRES_translationally_characterized
The shape of the nucleic acid molecule translated: linear
The quality of the mRNA/+RNA sequence: hopefully_full-length_mRNA
The mRNA/+RNA description:
Putative in vivo transcript from SV40 promoter with the chimeric intron spliced out and containing
renilla_luciferase - hairpin_from_multiple_cloning_site - LEF1 IRES 1.2kb - firefly_luciferase and is
terminated after the late SV40 polyA signal. An FLuc-fusion protein should be translated from the second
cistron (4 aminoacids added extra).
The mRNA/+RNA sequence represented in the +DNA notation:
Warning: mRNA sequence when devoid of trailing 'A's is still not a substring of the plasmid sequence. Is it because an intron is spliced out? Stay calm then. :-)
Credibility of mRNA sequence: reverse_engineered_sequence_and_should_match_experiment_maybe_except_both_UTRs
The name of the promoter used to express this mRNA: SV40
The in vivo produced transcripts are heterogeneous (due to any of promoter?/splicing?/cleavage?/breakage?): yes
The in vivo produced heterogeneous transcripts occur due to alternative splicing: yes
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: heterogeneous_population_of_molecules_found
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: weak_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 relative translation efficiency in % of this IRES: 100.000
Name of the plasmid used as the negative control. pRSTF
IRESite Id of the plasmid used as negative control. 213
The relative translation efficiency in % of the negative control: 1.600
The size (length) of intercistronic region in the negative control: 131
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:
As positive controls were used Kv1.4 and CVB3 IRESs (Fig. 2B). They are not considered as correct positive
controls by IRESite due to the fact the measured values were biased by aberrant splicing of Kv1.4 and CVB3
containing plasmids.
The relative translation efficiency in % of this IRES: 100.000
Name of the plasmid used as the negative control. pRSTF
IRESite Id of the plasmid used as negative control. 213
The relative translation efficiency in % of the negative control: 3.130
The size (length) of intercistronic region in the negative control: 131
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:
As positive controls were used Kv1.4 and CVB3 IRESs (Fig. 2B). They are not considered as correct positive
controls by IRESite due to the fact the measured values were biased by aberrant splicing of Kv1.4 and CVB3
containing plasmids.