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Wright KM, Nathan S, Jiang H, Xia W, Kim H, Chakouri N, Nwafor JN, Fossier L, Srinivasan L, Chen Z, Boronina T, Post J, Paul S, Cole RN, Ben-Johny M, Cole PA, Gabelli SB. NEDD4L intramolecular interactions regulate its auto and substrate Na V1.5 ubiquitination. J Biol Chem 2024; 300:105715. [PMID: 38309503 PMCID: PMC10933555 DOI: 10.1016/j.jbc.2024.105715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 01/13/2024] [Accepted: 01/17/2024] [Indexed: 02/05/2024] Open
Abstract
NEDD4L is a HECT-type E3 ligase that catalyzes the addition of ubiquitin to intracellular substrates such as the cardiac voltage-gated sodium channel, NaV1.5. The intramolecular interactions of NEDD4L regulate its enzymatic activity which is essential for proteostasis. For NaV1.5, this process is critical as alterations in Na+ current is involved in cardiac diseases including arrhythmias and heart failure. In this study, we perform extensive biochemical and functional analyses that implicate the C2 domain and the first WW-linker (1,2-linker) in the autoregulatory mechanism of NEDD4L. Through in vitro and electrophysiological experiments, the NEDD4L 1,2-linker was determined to be important in substrate ubiquitination of NaV1.5. We establish the preferred sites of ubiquitination of NEDD4L to be in the second WW-linker (2,3-linker). Interestingly, NEDD4L ubiquitinates the cytoplasmic linker between the first and second transmembrane domains of the channel (DI-DII) of NaV1.5. Moreover, we design a genetically encoded modulator of Nav1.5 that achieves Na+ current reduction using the NEDD4L HECT domain as cargo of a NaV1.5-binding nanobody. These investigations elucidate the mechanisms regulating the NEDD4 family and furnish a new molecular framework for understanding NaV1.5 ubiquitination.
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Affiliation(s)
- Katharine M Wright
- Department of Biophysics and Biophysical Chemistry, The Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Sara Nathan
- Department of Biophysics and Biophysical Chemistry, The Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Hanjie Jiang
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts, USA; Department of Pharmacology and Molecular Sciences, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Wendy Xia
- Department of Biophysics and Biophysical Chemistry, The Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - HyoJeon Kim
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts, USA
| | - Nourdine Chakouri
- Department of Physiology and Cellular Biophysics, Columbia University, New York, New York, USA
| | - Justin N Nwafor
- Department of Biophysics and Biophysical Chemistry, The Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Lucile Fossier
- Department of Physiology and Cellular Biophysics, Columbia University, New York, New York, USA
| | - Lakshmi Srinivasan
- Department of Biophysics and Biophysical Chemistry, The Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Zan Chen
- Department of Biophysics and Biophysical Chemistry, The Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Tatiana Boronina
- Mass Spectrometry and Proteomics Facility, Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Jeremy Post
- Mass Spectrometry and Proteomics Facility, Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Suman Paul
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Robert N Cole
- Mass Spectrometry and Proteomics Facility, Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Manu Ben-Johny
- Department of Physiology and Cellular Biophysics, Columbia University, New York, New York, USA
| | - Philip A Cole
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts, USA
| | - Sandra B Gabelli
- Department of Biophysics and Biophysical Chemistry, The Johns Hopkins School of Medicine, Baltimore, Maryland, USA; Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
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Wright K, Jiang H, Xia W, Murphy MB, Boronina TN, Nwafor JN, Kim H, Iheanacho AM, Azurmendi PA, Cole RN, Cole PA, Gabelli SB. The C-Terminal of Na V1.7 Is Ubiquitinated by NEDD4L. ACS Bio Med Chem Au 2023; 3:516-527. [PMID: 38144259 PMCID: PMC10739247 DOI: 10.1021/acsbiomedchemau.3c00031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 09/10/2023] [Accepted: 09/25/2023] [Indexed: 12/26/2023]
Abstract
NaV1.7, the neuronal voltage-gated sodium channel isoform, plays an important role in the human body's ability to feel pain. Mutations within NaV1.7 have been linked to pain-related syndromes, such as insensitivity to pain. To date, the regulation and internalization mechanisms of the NaV1.7 channel are not well known at a biochemical level. In this study, we perform biochemical and biophysical analyses that establish that the HECT-type E3 ligase, NEDD4L, ubiquitinates the cytoplasmic C-terminal (CT) region of NaV1.7. Through in vitro ubiquitination and mass spectrometry experiments, we identify, for the first time, the lysine residues of NaV1.7 within the CT region that get ubiquitinated. Furthermore, binding studies with an NEDD4L E3 ligase modulator (ubiquitin variant) highlight the dynamic partnership between NEDD4L and NaV1.7. These investigations provide a framework for understanding how NEDD4L-dependent regulation of the channel can influence the NaV1.7 function.
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Affiliation(s)
- Katharine
M. Wright
- Department
of Biophysics and Biophysical Chemistry, The Johns Hopkins School of Medicine, Baltimore, Maryland 21205, United States
| | - Hanjie Jiang
- Division
of Genetics, Department of Medicine, Brigham
and Women’s Hospital, Boston, Massachusetts 02115, United States
- Department
of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02115, United States
- Department
of Pharmacology and Molecular Sciences, Johns Hopkins School of Medicine, Baltimore, Maryland 21205, United States
| | - Wendy Xia
- Department
of Biophysics and Biophysical Chemistry, The Johns Hopkins School of Medicine, Baltimore, Maryland 21205, United States
| | | | - Tatiana N. Boronina
- Mass
Spectrometry
and Proteomics Facility, Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Justin N. Nwafor
- Department
of Biophysics and Biophysical Chemistry, The Johns Hopkins School of Medicine, Baltimore, Maryland 21205, United States
| | - HyoJeon Kim
- Division
of Genetics, Department of Medicine, Brigham
and Women’s Hospital, Boston, Massachusetts 02115, United States
- Department
of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Akunna M. Iheanacho
- Department
of Biophysics and Biophysical Chemistry, The Johns Hopkins School of Medicine, Baltimore, Maryland 21205, United States
- Department
of Physiology, The Johns Hopkins School
of Medicine, Baltimore, Maryland 21205, United States
| | - P. Aitana Azurmendi
- Department
of Biophysics and Biophysical Chemistry, The Johns Hopkins School of Medicine, Baltimore, Maryland 21205, United States
| | - Robert N. Cole
- Mass
Spectrometry
and Proteomics Facility, Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Philip A. Cole
- Division
of Genetics, Department of Medicine, Brigham
and Women’s Hospital, Boston, Massachusetts 02115, United States
- Department
of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Sandra B. Gabelli
- Department
of Biophysics and Biophysical Chemistry, The Johns Hopkins School of Medicine, Baltimore, Maryland 21205, United States
- Department
of Medicine, The Johns Hopkins University
School of Medicine, Baltimore, Maryland 21205, United States
- Department
of Oncology, The Johns Hopkins University
School of Medicine, Baltimore, Maryland 21287, United States
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