LARP6 NTD, comprising the N-terminal disordered tail (NTR) and the structured La-motif and RNA-recognition motif (theoretical molecular weight 33.9 kDa), in bound state to a 25-mer from the 3'-untranslated region of catenin alpha 1 mRNA (sequence 5' CUAAAUACAACACUGAUACUAGAUU 3'; theoretical molecular weight 7.92 kDa)