Final answer:
SR proteins are involved in mRNA splicing by recruiting spliceosome components, but they do not bind to enhancer proteins as described in the question. The splicing process involves snRNPs and other splicing factors, and it is not directly related to enhancer proteins, which regulate transcription.
Step-by-step explanation:
SR proteins do not bind to enhancer proteins to interact with spliceosome components; instead, they are involved in constitutive and alternative splicing of pre-mRNA by recruiting components of the spliceosome to specific splice sites. Splicing is facilitated by small ribonucleoprotein particles (snRNPs) and other auxiliary proteins that identify splice sites and form the spliceosome. The splicing process does not involve interactions with enhancer proteins in the way described.
Enhancer proteins typically interact with DNA to regulate gene expression at the level of transcription rather than splicing. The spliceosome, composed of snRNPs and other splicing factors, directs the excision of introns and the ligation of exons to generate mature mRNA. Helper proteins like SR proteins and RNA-binding proteins (RBPs) play a crucial role in splicing by helping to define the intron and exon boundaries and ensuring the correct RNA processing necessary for the formation of mature mRNA.