Protein: E3 ubiquitin-protein ligase SH3RF1 (EC 2.3.2.27) (Plenty of SH3s) (Protein POSH) (RING-type E3 ubiquitin transferase SH3RF1) (SH3 domain-containing RING finger protein 1) (SH3 multiple domains protein 2) (Q71F54)
Organism: Rattus norvegicus (Rat)
Function: Has E3 ubiquitin-protein ligase activity. In the absence of an external substrate, it can catalyze self-ubiquitination. Stimulates ubiquitination of potassium channel KCNJ1, enhancing it's dynamin-dependent and clathrin-independent endocytosis (By similarity). Acts as a scaffold protein that coordinates with MAPK8IP1/JIP1 in organizing different components of the JNK pathway, including RAC1 or RAC2, MAP3K11/MLK3 or MAP3K7/TAK1, MAP2K7/MKK7, MAPK8/JNK1 and/or MAPK9/JNK2 into a functional multiprotein complex to ensure the effective activation of the JNK signaling pathway. Regulates the differentiation of CD4(+) and CD8(+) T-cells and promotes T-helper 1 (Th1) cell differentiation. Regulates the activation of MAPK8/JNK1 and MAPK9/JNK2 in CD4(+) T-cells and the activation of MAPK8/JNK1 in CD8(+) T-cells. Plays a crucial role in the migration of neocortical neurons in the developing brain. Controls proper cortical neuronal migration and the formation of proximal cytoplasmic dilation in the leading process (PCDLP) in migratory neocortical neurons by regulating the proper localization of activated RAC1 and F-actin assembly (By similarity).
Subcellular location: Cytoplasm, perinuclear region {ECO:0000269|PubMed:16571722}. Cell projection, lamellipodium {ECO:0000250|UniProtKB:Q69ZI1}. Golgi apparatus, trans-Golgi network {ECO:0000250|UniProtKB:Q69ZI1}. Note=Colocalizes, with AKT2, in lamellipodia. Colocalizes, with HERP1, in trans-Golgi network. {ECO:0000250|UniProtKB:Q69ZI1, ECO:0000250|UniProtKB:Q7Z6J0}.
Sequence: MDESALLDLLECPVCLERLDASAKVLPCQHTFCKRCLLGIVGSRNELRCPECRTLVGSGVDELPSNILLVRLLDGIKQRPWKPGPGGGGSTTCTNVLRAQGSTVVNCGSKDLQSPQCGQQPRVQAWSPPVRGIPQLPCAKALYNYEGKEPGDLKFSKGDIIILRRQVDENWYHGEVNGVHGFFPTNFVQIIKPLPQPPPQCKALYDFEVKDKEADKDCLPFAKDDVLTVIRRVDENWAEGMLADKIGIFPISYVEFNSAAKQLIEWDKPPVPGVDTAECPSATAAQSSSASKHSDTKKNTRKRHSFTSLTMANKSSQASQNRHSMEISPPVLISSSNPTAAARISELSGLSCSAPSQVHISTTGLIVTPPPSSPVTTGPSFTFPTDVPYQAALGTMNPPLPPPPLLATTVLASTPSGATAAAVAAAAAAVAAGVGPRPAVGSTEQIAHLRPQTRPSVYVAIYPYTPRKEDELELRKGEMFLVFERCQDGWYKGTSMHTSKIGVFPGNYVAPVTRAVTNASQAKVPMSTAGQASRGVTMVSPSTAGGPAQKPQGNGVAGNPSVVPTAVVSAAHIQTSPQAKVLLHMTGQMTVNQARNAVRTVAAHNQERPTAAVTPIQVQNAACIGPASVGLPHHSLASQPLPPMVGPAAHIAAVNINRTSVPLACAAGASSLASPNMTTAALETEPSGRTVTILPGLPTSPESAASACGNSSAVKPDKDSKKEKKGLLKLLSGASTKRKPRVSPPASPTLDVELGSGEVPLQGAVGPELPLGGVHGRVGSCPTDGDGPVAAGTAALAQDAFHRKTSSLDSAVPIAPPPRQACSSLGPVMNEARPVVCERHRVVVSYPPQSEAELELKEGDIVFVHKKREDGWFKGTLQRNGKTGLFPGSFVENI
InterPro domains: - IPR035816: SH3RF1/SH3RF3, fourth SH3 domain (domain) [839-893]
- IPR017907: Zinc finger, RING-type, conserved site (conserved_site) [28-37]
- IPR036028: SH3-like domain superfamily (homologous_superfamily) [112-893]
- IPR050384: Endophilin/SH3RF (family) [6-512]
- IPR001452: SH3 domain (domain) [134-894]
- IPR013083: Zinc finger, RING/FYVE/PHD-type (homologous_superfamily) [1-81]
- IPR035795: E3 ubiquitin-protein ligase SH3RF1, second SH3 domain (domain) [200-254]
- IPR001841: Zinc finger, RING-type (domain) [12-53]
Interaction partners: - Mitogen-activated protein kinase 9
- Mitogen-activated protein kinase kinase kinase 11
Gene Ontology annotations:
Molecular Function (MF): GO:0003674 (molecular function), GO:0005488 (binding), GO:0005515 (protein binding)
Biological Process (BP): GO:0008150 (biological process), GO:0065007 (biological regulation), GO:0048518 (positive regulation of biological process), GO:0050789 (regulation of biological process), GO:0048519 (negative regulation of biological process), GO:0023056 (positive regulation of signaling), GO:0048584 (positive regulation of response to stimulus), GO:0019222 (regulation of metabolic process), GO:0050794 (regulation of cellular process), GO:0048583 (regulation of response to stimulus), GO:0009893 (positive regulation of metabolic process), GO:0023051 (regulation of signaling), GO:0048523 (negative regulation of cellular process), GO:0009892 (negative regulation of metabolic process), GO:0048522 (positive regulation of cellular process), GO:0009967 (positive regulation of signal transduction), GO:0051172 (negative regulation of nitrogen compound metabolic process), GO:0010604 (positive regulation of macromolecule metabolic process), GO:0031325 (positive regulation of cellular metabolic process), GO:0010646 (regulation of cell communication), GO:0010605 (negative regulation of macromolecule metabolic process), GO:0051171 (regulation of nitrogen compound metabolic process), GO:0051173 (positive regulation of nitrogen compound metabolic process), GO:0009966 (regulation of signal transduction), GO:0060255 (regulation of macromolecule metabolic process), GO:0031323 (regulation of cellular metabolic process), GO:0010647 (positive regulation of cell communication), GO:0080090 (regulation of primary metabolic process), GO:0031324 (negative regulation of cellular metabolic process), GO:0010562 (positive regulation of phosphorus metabolic process), GO:0051246 (regulation of protein metabolic process), GO:0051248 (negative regulation of protein metabolic process), GO:0010563 (negative regulation of phosphorus metabolic process), GO:0051247 (positive regulation of protein metabolic process), GO:1902533 (positive regulation of intracellular signal transduction), GO:0051174 (regulation of phosphorus metabolic process), GO:1902531 (regulation of intracellular signal transduction), GO:0043408 (regulation of MAPK cascade), GO:0031399 (regulation of protein modification process), GO:0043410 (positive regulation of MAPK cascade), GO:0031400 (negative regulation of protein modification process), GO:0045936 (negative regulation of phosphate metabolic process), GO:0019220 (regulation of phosphate metabolic process), GO:0042325 (regulation of phosphorylation), GO:0001933 (negative regulation of protein phosphorylation), GO:0001932 (regulation of protein phosphorylation), GO:0070374 (positive regulation of ERK1 and ERK2 cascade), GO:0042326 (negative regulation of phosphorylation), GO:0070372 (regulation of ERK1 and ERK2 cascade)
Cellular Component (CC): GO:0005575 (cellular component), GO:0110165 (cellular anatomical entity), GO:0031252 (cell leading edge), GO:0042995 (cell projection), GO:0030027 (lamellipodium), GO:0120025 (plasma membrane bounded cell projection)