A promoter reported in cDNA corresponding to IRES sequence: no
The total number of notable open-reading frames (ORFs): 1
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 : heterogeneous_population_of_molecules_found
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: not_tested
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 description of the protein encoded in this ORF: cyclin-dependent kinase inhibitor 1B
The translational frameshift (ribosome slippage) involved: 0
The ribosome read-through involved: no
The alternative forms of this protein occur by the alternative initiation of translation: not tested
The ORF absolute position (the base range includes START and STOP codons or their equivalents): 466-1062
Remarks:
The sequence used in IRESite was obtained from IRESdb database to which it has been provided by S. Pyronnet.
Although the sequence appears to be an incomplete mRNA sequence when aligned to current GenBank RefSeq record
the base #1 of the query is the first base of the transcript as determined by primer extension (Minami et al.
(1997):
>NM_004064.2 Homo sapiens cyclin-dependent kinase inhibitor 1B (p27, Kip1) (CDKN1B), mRNA
Length=2422
GENE ID: 1027 CDKN1B | cyclin-dependent kinase inhibitor 1B (p27, Kip1)
[Homo sapiens] (Over 100 PubMed links)
Score = 281 bits (152), Expect = 2e-75
Identities = 154/155 (99%), Gaps = 0/155 (0%)
Strand=Plus/Plus
Query 1 GGGCCGTGGCTCGTCGGGGTCAGTGTCTTTTGGCTCCGAGGGCAGTCGCTGGGCTTCCGA 60
||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||
Sbjct 314 GGGCCGTGGCTCGTCGGGGTCTGTGTCTTTTGGCTCCGAGGGCAGTCGCTGGGCTTCCGA 373
Query 61 GAGGGGTTCGGGCCGCGTAGGGGCGCtttgttttgttcggttttgtttttttgAGAGTGC 120
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Sbjct 374 GAGGGGTTCGGGCCGCGTAGGGGCGCTTTGTTTTGTTCGGTTTTGTTTTTTTGAGAGTGC 433
Query 121 GAGAGAGGCGGTCGTGCAGACCCGGGAGAAAGATG 155
|||||||||||||||||||||||||||||||||||
Sbjct 434 GAGAGAGGCGGTCGTGCAGACCCGGGAGAAAGATG 468
The transcription start site of mouse p27kip1 is 23 bp upstream of the one from human (Minami et al. (1997),
Figure 5.
A human sequence with just 153 bp long 5'-UTR is GI:9652559.