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Details on Person UniProt:Q02297-10 NRG1
| Class:Id | ReferenceIsoform:435880 |
|---|---|
| _chainChangeLog | propeptide:1-19 added on Sat February 7 2015;chain:20-640 added on Sat February 7 2015;chain:20-241 added on Sat February 7 2015 |
| _displayName | UniProt:Q02297-10 NRG1 |
| _timestamp | 2024-11-03 19:42:17 |
| chain | propeptide:1-19 chain:20-640 chain:20-241 |
| checksum | C30D3F614AADFF62 |
| comment | FUNCTION Direct ligand for ERBB3 and ERBB4 tyrosine kinase receptors. Concomitantly recruits ERBB1 and ERBB2 coreceptors, resulting in ligand-stimulated tyrosine phosphorylation and activation of the ERBB receptors. The multiple isoforms perform diverse functions such as inducing growth and differentiation of epithelial, glial, neuronal, and skeletal muscle cells; inducing expression of acetylcholine receptor in synaptic vesicles during the formation of the neuromuscular junction; stimulating lobuloalveolar budding and milk production in the mammary gland and inducing differentiation of mammary tumor cells; stimulating Schwann cell proliferation; implication in the development of the myocardium such as trabeculation of the developing heart. Isoform 10 may play a role in motor and sensory neuron development. Binds to ERBB4 (PubMed:10867024, PubMed:7902537). Binds to ERBB3 (PubMed:20682778). Acts as a ligand for integrins and binds (via EGF domain) to integrins ITGAV:ITGB3 or ITGA6:ITGB4. Its binding to integrins and subsequent ternary complex formation with integrins and ERRB3 are essential for NRG1-ERBB signaling. Induces the phosphorylation and activation of MAPK3/ERK1, MAPK1/ERK2 and AKT1 (PubMed:20682778). Ligand-dependent ERBB4 endocytosis is essential for the NRG1-mediated activation of these kinases in neurons (By similarity).SUBUNIT The cytoplasmic domain interacts with the LIM domain region of LIMK1 (By similarity). Forms a ternary complex with ERBB3 and ITGAV:ITGB3 or ITGA6:ITGB4 (PubMed:20682778). Interacts with NRDC and BACE1 (By similarity).INTERACTION Does not seem to be active.SUBCELLULAR LOCATION May be nuclear.SUBCELLULAR LOCATION Has a signal peptide.SUBCELLULAR LOCATION May possess an internal uncleaved signal sequence.ALTERNATIVE PRODUCTS Additional isoforms seem to exist. Isoforms have been classified as type I NRGs (isoforms with an Ig domain and a glycosylation domain, isoforms 1-8), type II NRGs (isoforms with an Ig domain but no glycosylation domain, isoform 9), type III NRGs (isoforms with a Cys-rich domain, isoform 10) and type IV NRGs (isoforms with additional 5' exons, isoform 11). All these isoforms perform distinct tissue-specific functions.TISSUE SPECIFICITY Type I isoforms are the predominant forms expressed in the endocardium. Isoform alpha is expressed in breast, ovary, testis, prostate, heart, skeletal muscle, lung, placenta liver, kidney, salivary gland, small intestine and brain, but not in uterus, stomach, pancreas, and spleen. Isoform 3 is the predominant form in mesenchymal cells and in non-neuronal organs, whereas isoform 6 is the major neuronal form. Isoform 8 is expressed in spinal cord and brain. Isoform 9 is the major form in skeletal muscle cells; in the nervous system it is expressed in spinal cord and brain. Also detected in adult heart, placenta, lung, liver, kidney, and pancreas. Isoform 10 is expressed in nervous system: spinal cord motor neurons, dorsal root ganglion neurons, and brain. Predominant isoform expressed in sensory and motor neurons. Not detected in adult heart, placenta, lung, liver, skeletal muscle, kidney, and pancreas. Not expressed in fetal lung, liver and kidney. Type IV isoforms are brain-specific.DEVELOPMENTAL STAGE Detectable at early embryonic ages. Isoform 10 is highly expressed in developing spinal motor neurons and in developing cranial nerve nuclei. Expression is maintained only in both adult motor neurons and dorsal root ganglion neurons. Type IV isoforms are expressed in fetal brain.DOMAIN The cytoplasmic domain may be involved in the regulation of trafficking and proteolytic processing. Regulation of the proteolytic processing involves initial intracellular domain dimerization (By similarity).DOMAIN ERBB receptor binding is elicited entirely by the EGF-like domain.PTM Proteolytic cleavage close to the plasma membrane on the external face leads to the release of the soluble growth factor form.PTM N- and O-glycosylated. Extensive glycosylation precedes the proteolytic cleavage (By similarity).DISEASE A chromosomal aberration involving NRG1 produces gamma-heregulin. Translocation t(8;11) with TENM4. The translocation fuses the 5'-end of TENM4 to NRG1 (isoform 8). The product of this translocation was first thought to be an alternatively spliced isoform. Gamma-heregulin is a soluble activating ligand for the ERBB2-ERBB3 receptor complex and acts as an autocrine growth factor in a specific breast cancer cell line (MDA-MB-175). Not detected in breast carcinoma samples, including ductal, lobular, medullary, and mucinous histological types, neither in other breast cancer cell lines.MISCELLANEOUS Potential internal signal sequence at positions 76-100.SIMILARITY Belongs to the neuregulin family.SEQUENCE CAUTION Contaminating sequence. Sequence of unknown origin in the N-terminal part.SEQUENCE CAUTION Tipping the mind - Issue 129 of June 2011 |
| created | [InstanceEdit:435871] Kanapin, AA |
| description | recommendedName: Pro-neuregulin-1, membrane-bound isoform shortName: Pro-NRG1 component recommendedName: Neuregulin-1 alternativeName: Acetylcholine receptor-inducing activity shortName: ARIA alternativeName: Breast cancer cell differentiation factor p45 alternativeName: Glial growth factor alternativeName: Heregulin shortName: HRG alternativeName: Neu differentiation factor alternativeName: Sensory and motor neuron-derived factor /component |
| geneName | NRG1 GGF HGL HRGA NDF SMDF |
| identifier | Q02297 |
| isoformParent | |
| isSequenceChanged | FALSE |
| keyword | 3D-structure Alternative splicing Cell membrane Chromosomal rearrangement Direct protein sequencing Disulfide bond EGF-like domain Glycoprotein Growth factor Immunoglobulin domain Membrane Nucleus Proteomics identification Reference proteome Secreted Transmembrane Transmembrane helix |
| modified | [InstanceEdit:9836292] Weiser, Joel, 2023-05-25 [InstanceEdit:9852000] Weiser, Joel, 2023-11-03 [InstanceEdit:9926675] Weiser, Joel, 2024-11-03 |
| name | NRG1 |
| referenceDatabase | [ReferenceDatabase:2] UniProt |
| referenceGene | [ReferenceDNASequence:9003676] ENSEMBL:ENSG00000157168 NRG1 [Homo sapiens] |
| secondaryIdentifier | NRG1_HUMAN A5YAK4 A5YAK5 A8K1L2 B7Z4Z3 E9PHH4 O14667 P98202 Q02298 Q02299 Q07110 Q07111 Q12779 Q12780 Q12781 Q12782 Q12783 Q12784 Q15491 Q7RTV9 Q7RTW0 Q7RTW1 Q7RTW2 Q8NFN1 Q8NFN2 Q8NFN3 Q9UPE3 |
| sequenceLength | 640 |
| species | [Species:48887] Homo sapiens |
| variantIdentifier | Q02297-10 |
| (referenceEntity) | [EntityWithAccessionedSequence:197919] NRG1-10 [extracellular region] [Homo sapiens] |
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No pathways have been reviewed or authored by UniProt:Q02297-10 NRG1 (435880)
