hnRNP K: a heterogeneous nuclear ribonucleoprotein (hnRNP). One of the major pre-mRNA-binding proteins. Binds tenaciously to poly(C) sequences. Likely to play a role in the nuclear metabolism of hnRNAs, particularly for pre-mRNAs that contain cytidine-rich sequences. Can also bind poly(C) single-stranded DNA. Two alternatively spliced isoforms have been described.
Protein type: RNA-binding; Spliceosome; RNA splicing
Cellular Component: cell cortex; cell junction; cytosol; dendritic spine; focal adhesion; membrane; mitochondrion; nerve terminal; nuclear chromatin; nucleoplasm; nucleus; podosome; postsynaptic density; spliceosome
Molecular Function: actinin binding; ATPase binding; double-stranded DNA binding; heat shock protein binding; lamin binding; mRNA 3'-UTR binding; pre-mRNA 3'-splice site binding; protein binding; protein domain specific binding; ribonucleoprotein binding; RNA binding; single-stranded DNA binding; transcription factor binding
Biological Process: acute-phase response; aging; camera-type eye development; cellular response to insulin stimulus; central nervous system development; cerebellum development; cerebral cortex development; hippocampus development; kidney development; liver development; lung development; mRNA processing; negative regulation of apoptosis; negative regulation of nuclear mRNA splicing, via spliceosome; negative regulation of protein binding; negative regulation of transcription from RNA polymerase II promoter; ovarian follicle development; peripheral nervous system development; positive regulation of low-density lipoprotein receptor biosynthetic process; positive regulation of receptor-mediated endocytosis; positive regulation of RNA splicing; positive regulation of synaptic transmission; positive regulation of transcription from RNA polymerase II promoter; regulation of transcription from RNA polymerase II promoter; response to activity; RNA splicing; thymus development; transcription from RNA polymerase II promoter; transcription, DNA-dependent
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