A promoter reported in cDNA corresponding to IRES sequence: not tested
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: 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: 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: fragile X mental retardation 1
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: no
The ORF absolute position (the base range includes START and STOP codons or their equivalents): 252-2153
OPTIONAL: The function of the encoded protein
RNA-binding protein. Associated to polysomes and might be involved in the transport of mRNA from the nucleus
to the cytoplasm.
GO:0005737; Cellular component: cytoplasm
GO:0005730; Cellular component: nucleolus
GO:0005654; Cellular component: nucleoplasm
GO:0005625; Cellular component: soluble fraction
GO:0003729; Molecular function: mRNA binding
GO:0005515; Molecular function: protein binding
Remarks:
This sequence is composed of Figure 1 (L29074) in cited article (5' UTR) and GenBank sequence number 50053960
(the rest of the mRNA) by curator [it does not start at the base 251 but at the base 252].
The IRES absolute position (the range includes START and STOP codons or their equivalents): 1-252
Conclusion: putative_IRES
How IRES boundaries were determined: experimentally_determined
The sequence of IRES region aligned to its secondary structure (if available):
Remarks:
Sequences between -223 and -209 [bases 29 to 43 here in database] appear to contribute most of the observed
IRES activity of the FMR1 5'-UTR in the dicistronic context. This sequence is located mainly within a
21-nucleotide, pyrimidine-rich region spanning nucleotides -232 through -212 [bases 20 to 40 here in
database].