Lectins have shown the ability to recognise these modifications in several carcinomas, namely in the prostate carcinoma, one of the most lethal diseases in man.
This limitation was quickly recognised, and chemical modifications to the oligonucleotide backbone were made, aiming to improve target affinity, nuclease resistance, toxicology profile, biostability and pharmacokinetics [13 21].
Consistent with this view, many remodelling complexes contain components that recognise specific modification states of histone tails.
Formally, this hypothesis states that one modification or specific combinations of histone modifications can affect distinct downstream events by altering the structure of the chromatin and/or generating a binding platform for protein effectors that can specifically recognise the modification(s) and initiate gene transcription or repression.
Methylation-specific PCR (MSP) was also performed after bisulfite modification, using methylation-specific primers, which were designed to recognise bisulfite-induced modifications of unmethylated cytosines.
In addition, provisioning (seafood), air purification and climate modification were recognised.
It has been recognised that intermolecular self-modification (including phosphorylation and ubiquitination) can induce complex dynamic behaviours including bistability, multistability, sustained oscillations and excitability [ 3, 13].
By analogy, other chromatin-modifying repressors both introduce repressive histone modifications and preferentially recognise chromatin harbouring the modifications they introduced.
Cooperative interactions between histone modifications such as acetylation, methylation and sumoylation are crucial for proper attenuation in C. elegans, implying that the proteins recognising these histone modifications could also play an important role in attenuation of RAS-mediated signalling.
This family includes four proteins (BRD2, BRD3, BRD4 and BRDT) that recognise epigenetic chromatin modifications, such as polyacetylated lysine residues of histone tails, and form part of transcription complexes.
The code operates, in part, by providing, on the nucleosome surface, an array of modifications that are recognised, individually or in combination, by non-histone proteins that, in turn, exert functional effects.
