Protein: Muscleblind-like protein 2 (F2Z3T4)
Organism: Rattus norvegicus (Rat)
Function: Mediates pre-mRNA alternative splicing regulation. Acts either as activator or repressor of splicing on specific pre-mRNA targets. Inhibits cardiac troponin-T (TNNT2) pre-mRNA exon inclusion but induces insulin receptor (IR) pre-mRNA exon inclusion in muscle. Antagonizes the alternative splicing activity pattern of CELF proteins. RNA-binding protein that binds to 5'ACACCC-3' core sequence, termed zipcode, within the 3'UTR of ITGA3. Binds to CUG triplet repeat expansion in myotonic dystrophy muscle cells by sequestering the target RNAs. Together with RNA binding proteins RBPMS and RBFOX2, activates vascular smooth muscle cells alternative splicing events . Regulates NCOR2 alternative splicing . Seems to regulate expression and localization of ITGA3 by transporting it from the nucleus to cytoplasm at adhesion plaques. May play a role in myotonic dystrophy pathophysiology (DM) (By similarity)
Subcellular location: Nucleus. Cytoplasm . Note=Greater concentration in the nucleus. Expressed in or near large cytoplasmic adhesion plaques. Location in the cytoplasm is microtubule-dependent
InterPro domains:
- IPR000571: Zinc finger, CCCH-type (domain) [13-238]
- IPR054429: Muscleblind-like, CCCH zinc finger (domain) [48-251]
Sequence:
MALNVAPVRDTKWLTLEVCRQYQRGTCSRSDEECKFAHPPKSCQVENGRVIACFDSLKGRCSRENCKYLHPPTHLKTQLEINGRNNLIQQKTAAAMLAQQMQFMFPGTPLHPVPTFPVGPTIGTNAAISFAPYLAPVTPGVGLVPTEVLPTTPVIVPGSPPVTVPGSTATQKLLRTDKLEVCREFQRGNCARGETDCRFAHPADSTMIDTNDNTVTVCMDYIKGRCMREKCKYFHPPAHLQAKIKAAQHQANQAAVAAQAAAAAATVMTQSTAKALKRPLEATVDLAFPPGALHPLPKRQALEKSNGASTVFNPSVLHYQQALTSAQLQQHTAFIPTVPMMHSATSATVSAATTPATSVPFAATATANQIILK
Predicted GO terms:
Molecular Function (MF): GO:0003674 (molecular function), GO:0005488 (binding), GO:0097159 (organic cyclic compound binding), GO:1901363 (heterocyclic compound binding), GO:0003676 (nucleic acid binding), GO:0003723 (RNA binding), GO:0001067 (transcription regulatory region nucleic acid binding), GO:0001069 (regulatory region RNA binding)
Biological Process (BP): GO:0008150 (biological process), GO:0065007 (biological regulation), GO:0050789 (regulation of biological process), GO:0019222 (regulation of metabolic process), GO:0050794 (regulation of cellular process), GO:0060255 (regulation of macromolecule metabolic process), GO:0031323 (regulation of cellular metabolic process), GO:0080090 (regulation of primary metabolic process), GO:0051171 (regulation of nitrogen compound metabolic process), GO:0019219 (regulation of nucleobase-containing compound metabolic process), GO:0051252 (regulation of RNA metabolic process), GO:0010468 (regulation of gene expression), GO:0043484 (regulation of RNA splicing), GO:1903311 (regulation of mRNA metabolic process), GO:0050684 (regulation of mRNA processing), GO:0048024 (regulation of mRNA splicing, via spliceosome), GO:0000381 (regulation of alternative mRNA splicing, via spliceosome)
Cellular Component (CC): GO:0005575 (cellular component), GO:0110165 (cellular anatomical entity), GO:0005622 (intracellular anatomical structure), GO:0043226 (organelle), GO:0043229 (intracellular organelle), GO:0043227 (membrane-bounded organelle), GO:0043231 (intracellular membrane-bounded organelle), GO:0005634 (nucleus)