PMID- 10348342 OWN - NLM STAT- MEDLINE DCOM- 19990616 LR - 20220408 IS - 0950-9232 (Print) IS - 0950-9232 (Linking) VI - 18 IP - 17 DP - 1999 Apr 29 TI - Neuregulin-4: a novel growth factor that acts through the ErbB-4 receptor tyrosine kinase. PG - 2681-9 AB - The ErbB/HER family of receptor tyrosine kinases consists of four receptors that bind a large number of growth factor ligands sharing an epidermal growth factor- (EGF)-like motif. Whereas ErbB-1 binds seven different ligands whose prototype is EGF, the three families of neuregulins (NRGs) activate ErbB-3 and/or ErbB-4. Here we characterize a fourth neuregulin, NRG-4, that acts through ErbB-4. The predicted pro-NRG-4 is a transmembrane protein carrying a unique EGF-like motif and a short cytoplasmic domain. A synthetic peptide encompassing the full-length EGF-like domain can induce growth of interleukin-dependent cells ectopically expressing ErbB-4, but not cells expressing the other three ErbB proteins or their combinations. Consistent with specificity to ErbB-4, NRG-4 can displace an ErbB-4-bound NRG-1 and can activate signaling downstream of this receptor. Expression of NRG-4 mRNA was detected in the adult pancreas and weakly in muscle; other tissues displayed no detectable NRG-4 mRNA. The primary structure and the pattern of expression of NRG-4, together with the strict specificity of this growth factor to ErbB-4, suggest a physiological role distinct from that of the known ErbB ligands. FAU - Harari, D AU - Harari D AD - Department of Biological Regulation, The Weizmann Institute of Science, Rehovot, Israel. FAU - Tzahar, E AU - Tzahar E FAU - Romano, J AU - Romano J FAU - Shelly, M AU - Shelly M FAU - Pierce, J H AU - Pierce JH FAU - Andrews, G C AU - Andrews GC FAU - Yarden, Y AU - Yarden Y LA - eng SI - GENBANK/AF083067 PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PL - England TA - Oncogene JT - Oncogene JID - 8711562 RN - 0 (Glycoproteins) RN - 0 (Ligands) RN - 0 (Nerve Growth Factors) RN - 0 (Neuregulins) RN - 0 (RNA, Messenger) RN - EC 2.7.10.1 (ERBB4 protein, human) RN - EC 2.7.10.1 (ErbB Receptors) RN - EC 2.7.10.1 (Receptor, ErbB-4) SB - IM MH - Amino Acid Sequence MH - Base Sequence MH - Cell Division/physiology MH - ErbB Receptors/*physiology MH - Glycoproteins/*physiology MH - Humans MH - Ligands MH - Molecular Sequence Data MH - Nerve Growth Factors/*physiology MH - Neuregulins MH - Organ Specificity MH - Protein Structure, Tertiary MH - RNA, Messenger/biosynthesis MH - Receptor, ErbB-4 EDAT- 1999/05/29 00:00 MHDA- 1999/05/29 00:01 CRDT- 1999/05/29 00:00 PHST- 1999/05/29 00:00 [pubmed] PHST- 1999/05/29 00:01 [medline] PHST- 1999/05/29 00:00 [entrez] AID - 10.1038/sj.onc.1202631 [doi] PST - ppublish SO - Oncogene. 1999 Apr 29;18(17):2681-9. doi: 10.1038/sj.onc.1202631.