1
|
Fyn nanoclustering requires switching to an open conformation and is enhanced by FTLD-Tau biomolecular condensates. Mol Psychiatry 2023; 28:946-962. [PMID: 36258016 PMCID: PMC9908554 DOI: 10.1038/s41380-022-01825-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 09/19/2022] [Accepted: 09/27/2022] [Indexed: 11/08/2022]
Abstract
Fyn is a Src kinase that controls critical signalling cascades and has been implicated in learning and memory. Postsynaptic enrichment of Fyn underpins synaptotoxicity in dementias such as Alzheimer's disease and frontotemporal lobar degeneration with Tau pathology (FTLD-Tau). The FLTD P301L mutant Tau is associated with a higher propensity to undergo liquid-liquid phase separation (LLPS) and form biomolecular condensates. Expression of P301L mutant Tau promotes aberrant trapping of Fyn in nanoclusters within hippocampal dendrites by an unknown mechanism. Here, we used single-particle tracking photoactivated localisation microscopy to demonstrate that the opening of Fyn into its primed conformation promotes its nanoclustering in dendrites leading to increased Fyn/ERK/S6 downstream signalling. Preventing the auto-inhibitory closed conformation of Fyn through phospho-inhibition or through perturbation of its SH3 domain increased Fyn's nanoscale trapping, whereas inhibition of the catalytic domain had no impact. By combining pharmacological and genetic approaches, we demonstrate that P301L Tau enhanced both Fyn nanoclustering and Fyn/ERK/S6 signalling via its ability to form biomolecular condensates. Together, our findings demonstrate that Fyn alternates between a closed and an open conformation, the latter being enzymatically active and clustered. Furthermore, pathogenic immobilisation of Fyn relies on the ability of P301L Tau to form biomolecular condensates, thus highlighting the critical importance of LLPS in controlling nanoclustering and downstream intracellular signalling events.
Collapse
|
2
|
Bley N, Schott A, Müller S, Misiak D, Lederer M, Fuchs T, Aßmann C, Glaß M, Ihling C, Sinz A, Pazaitis N, Wickenhauser C, Vetter M, Ungurs O, Strauss HG, Thomssen C, Hüttelmaier S. IGF2BP1 is a targetable SRC/MAPK-dependent driver of invasive growth in ovarian cancer. RNA Biol 2020; 18:391-403. [PMID: 32876513 PMCID: PMC7951963 DOI: 10.1080/15476286.2020.1812894] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Epithelial-to-mesenchymal transition (EMT) is a hallmark of aggressive, mesenchymal-like high-grade serous ovarian carcinoma (HGSOC). The SRC kinase is a key driver of cancer-associated EMT promoting adherens junction (AJ) disassembly by phosphorylation-driven internalization and degradation of AJ proteins. Here, we show that the IGF2 mRNA-binding protein 1 (IGF2BP1) is up-regulated in mesenchymal-like HGSOC and promotes SRC activation by a previously unknown protein-ligand-induced, but RNA-independent mechanism. IGF2BP1-driven invasive growth of ovarian cancer cells essentially relies on the SRC-dependent disassembly of AJs. Concomitantly, IGF2BP1 enhances ERK2 expression in an RNA-binding dependent manner. Together this reveals a post-transcriptional mechanism of interconnected stimulation of SRC/ERK signalling in ovarian cancer cells. The IGF2BP1-SRC/ERK2 axis is targetable by the SRC-inhibitor saracatinib and MEK-inhibitor selumetinib. However, due to IGF2BP1-directed stimulation, only combinatorial treatment effectively overcomes the IGF2BP1-promoted invasive growth in 3D culture conditions as well as intraperitoneal mouse models. In conclusion, we reveal an unexpected role of IGF2BP1 in enhancing SRC/MAPK-driven invasive growth of ovarian cancer cells. This provides a rationale for the therapeutic benefit of combinatorial SRC/MEK inhibition in mesenchymal-like HGSOC.
Collapse
Affiliation(s)
- Nadine Bley
- Sect. Molecular Cell Biology, Inst. of Molecular Medicine, Charles Tanford Protein Center, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Annekatrin Schott
- Sect. Molecular Cell Biology, Inst. of Molecular Medicine, Charles Tanford Protein Center, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Simon Müller
- Sect. Molecular Cell Biology, Inst. of Molecular Medicine, Charles Tanford Protein Center, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Danny Misiak
- Sect. Molecular Cell Biology, Inst. of Molecular Medicine, Charles Tanford Protein Center, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Marcell Lederer
- Sect. Molecular Cell Biology, Inst. of Molecular Medicine, Charles Tanford Protein Center, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Tommy Fuchs
- Sect. Molecular Cell Biology, Inst. of Molecular Medicine, Charles Tanford Protein Center, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Chris Aßmann
- Sect. Molecular Cell Biology, Inst. of Molecular Medicine, Charles Tanford Protein Center, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Markus Glaß
- Sect. Molecular Cell Biology, Inst. of Molecular Medicine, Charles Tanford Protein Center, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Christian Ihling
- Dept. of Pharmaceutical Chemistry & Bioanalytics, Inst. of Pharmacy, Charles Tanford Protein Center, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Andrea Sinz
- Dept. of Pharmaceutical Chemistry & Bioanalytics, Inst. of Pharmacy, Charles Tanford Protein Center, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Nikolaos Pazaitis
- Inst. of Pathology, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Claudia Wickenhauser
- Inst. of Pathology, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Martina Vetter
- Clinics for Gynecology, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Olga Ungurs
- Clinics for Gynecology, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Hans-Georg Strauss
- Clinics for Gynecology, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Christoph Thomssen
- Clinics for Gynecology, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Stefan Hüttelmaier
- Sect. Molecular Cell Biology, Inst. of Molecular Medicine, Charles Tanford Protein Center, Medical Faculty, Martin Luther University Halle-Wittenberg, Halle, Germany
| |
Collapse
|
3
|
Myosin XVI in the Nervous System. Cells 2020; 9:cells9081903. [PMID: 32824179 PMCID: PMC7464383 DOI: 10.3390/cells9081903] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 08/07/2020] [Accepted: 08/12/2020] [Indexed: 12/12/2022] Open
Abstract
The myosin family is a large inventory of actin-associated motor proteins that participate in a diverse array of cellular functions. Several myosin classes are expressed in neural cells and play important roles in neural functioning. A recently discovered member of the myosin superfamily, the vertebrate-specific myosin XVI (Myo16) class is expressed predominantly in neural tissues and appears to be involved in the development and proper functioning of the nervous system. Accordingly, the alterations of MYO16 has been linked to neurological disorders. Although the role of Myo16 as a generic actin-associated motor is still enigmatic, the N-, and C-terminal extensions that flank the motor domain seem to confer unique structural features and versatile interactions to the protein. Recent biochemical and physiological examinations portray Myo16 as a signal transduction element that integrates cell signaling pathways to actin cytoskeleton reorganization. This review discusses the current knowledge of the structure-function relation of Myo16. In light of its prevalent localization, the emphasis is laid on the neural aspects.
Collapse
|
4
|
Kim MK, Kim B, Kwon JO, Song MK, Jung S, Lee ZH, Kim HH. ST5 Positively Regulates Osteoclastogenesis via Src/Syk/calcium Signaling Pathways. Mol Cells 2019; 42:810-819. [PMID: 31707778 PMCID: PMC6883977 DOI: 10.14348/molcells.2019.0189] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 09/24/2019] [Accepted: 09/25/2019] [Indexed: 02/06/2023] Open
Abstract
For physiological or pathological understanding of bone disease caused by abnormal behavior of osteoclasts (OCs), functional studies of molecules that regulate the generation and action of OCs are required. In a microarray approach, we found the suppression of tumorigenicity 5 (ST5) gene is upregulated by receptor activator of nuclear factor-κB ligand (RANKL), the OC differentiation factor. Although the roles of ST5 in cancer and β-cells have been reported, the function of ST5 in bone cells has not yet been investigated. Knockdown of ST5 by siRNA reduced OC differentiation from primary precursors. Moreover, ST5 downregulation decreased expression of NFATc1, a key transcription factor for osteoclastogenesis. In contrast, overexpression of ST5 resulted in the opposite phenotype of ST5 knockdown. In immunocytochemistry experiments, the ST5 protein is colocalized with Src in RANKL-committed cells. In addition, ST5 enhanced activation of Src and Syk, a Src substrate, in response to RANKL. ST5 reduction caused a decrease in RANKL-evoked calcium oscillation and inhibited translocation of NFATc1 into the nucleus. Taken together, these findings provide the first evidence of ST5 involvement in positive regulation of osteoclastogenesis via Src/Syk/calcium signaling.
Collapse
Affiliation(s)
- Min Kyung Kim
- Department of Cell and Developmental Biology, BK21 Program and Dental Research Institute (DRI), School of Dentistry, Seoul National University, Seoul 03080,
Korea
| | - Bongjun Kim
- Department of Cell and Developmental Biology, BK21 Program and Dental Research Institute (DRI), School of Dentistry, Seoul National University, Seoul 03080,
Korea
| | - Jun-Oh Kwon
- Department of Cell and Developmental Biology, BK21 Program and Dental Research Institute (DRI), School of Dentistry, Seoul National University, Seoul 03080,
Korea
| | - Min-Kyoung Song
- Department of Cell and Developmental Biology, BK21 Program and Dental Research Institute (DRI), School of Dentistry, Seoul National University, Seoul 03080,
Korea
| | - Suhan Jung
- Department of Cell and Developmental Biology, BK21 Program and Dental Research Institute (DRI), School of Dentistry, Seoul National University, Seoul 03080,
Korea
| | - Zang Hee Lee
- Department of Cell and Developmental Biology, BK21 Program and Dental Research Institute (DRI), School of Dentistry, Seoul National University, Seoul 03080,
Korea
| | - Hong-Hee Kim
- Department of Cell and Developmental Biology, BK21 Program and Dental Research Institute (DRI), School of Dentistry, Seoul National University, Seoul 03080,
Korea
| |
Collapse
|
5
|
Berndt S, Gurevich VV, Iverson TM. Crystal structure of the SH3 domain of human Lyn non-receptor tyrosine kinase. PLoS One 2019; 14:e0215140. [PMID: 30969999 PMCID: PMC6457566 DOI: 10.1371/journal.pone.0215140] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 03/27/2019] [Indexed: 01/07/2023] Open
Abstract
Lyn kinase (Lck/Yes related novel protein tyrosine kinase) belongs to the family of Src-related non-receptor tyrosine kinases. Consistent with physiological roles in cell growth and proliferation, aberrant function of Lyn is associated with various forms of cancer, including leukemia, breast cancer and melanoma. Here, we determine a 1.3 Å resolution crystal structure of the polyproline-binding SH3 regulatory domain of human Lyn kinase, which adopts a five-stranded β-barrel fold. Mapping of cancer-associated point mutations onto this structure reveals that these amino acid substitutions are distributed throughout the SH3 domain and may affect Lyn kinase function distinctly.
Collapse
Affiliation(s)
- Sandra Berndt
- Department of Pharmacology, Vanderbilt University, Nashville, TN, United States of America
| | - Vsevolod V. Gurevich
- Department of Pharmacology, Vanderbilt University, Nashville, TN, United States of America
| | - T. M. Iverson
- Department of Pharmacology, Vanderbilt University, Nashville, TN, United States of America
- Department of Biochemistry, Vanderbilt University, Nashville, TN, United States of America
- Vanderbilt Institute of Chemical Biology, Nashville, TN, United States of America
- Center for Structural Biology, Nashville, TN, United States of America
- * E-mail:
| |
Collapse
|
6
|
Register AC, Chakraborty S, Maly DJ. Allosteric Modulation of Src Family Kinases with ATP-Competitive Inhibitors. Methods Mol Biol 2018; 1636:79-89. [PMID: 28730474 DOI: 10.1007/978-1-4939-7154-1_6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The Src family kinases (SFKs) are an important family of tyrosine kinases that are allosterically regulated by their SH2 and SH3 domains. Engagement of SFK SH2 and SH3 domains with their intramolecular ligands leads to reduced kinase activity by stabilizing an inactive ATP-binding site conformation. Disruption of these intramolecular interactions stabilizes a more active ATP-binding site conformation and restores SFK activity. Interestingly, this allosteric relationship is bidirectional in that ATP-competitive ligands that stabilize distinct active site conformations can divergently modulate the abilities of the regulatory SH2 and SH3 domains to participate in intermolecular interactions. Here, we describe a series of assays that profile the bidirectional relationship between the ATP-binding sites and regulatory domains of SFKs. These methods can be used to discover ATP-competitive inhibitors that are selective for distinct ATP-binding site conformations of SFKs and for characterizing the effects that ATP-competitive inhibitors of SFKs have on domains that are distal to their site of interaction.
Collapse
Affiliation(s)
- Ames C Register
- Departments of Chemistry and Biochemistry, University of Washington, 36 Bagley Hall, Box 351700, Seattle, WA, 98195-1700, USA
| | - Sujata Chakraborty
- Departments of Chemistry and Biochemistry, University of Washington, 36 Bagley Hall, Box 351700, Seattle, WA, 98195-1700, USA
| | - Dustin J Maly
- Departments of Chemistry and Biochemistry, University of Washington, 36 Bagley Hall, Box 351700, Seattle, WA, 98195-1700, USA.
| |
Collapse
|
7
|
Banerjee M, Duan Q, Xie Z. SH2 Ligand-Like Effects of Second Cytosolic Domain of Na/K-ATPase α1 Subunit on Src Kinase. PLoS One 2015; 10:e0142119. [PMID: 26551526 PMCID: PMC4638348 DOI: 10.1371/journal.pone.0142119] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 10/16/2015] [Indexed: 01/08/2023] Open
Abstract
Our previous studies have suggested that the α1 Na/K-ATPase interacts with Src to form a receptor complex. In vitro binding assays indicate an interaction between second cytosolic domain (CD2) of Na/K-ATPase α1 subunit and Src SH2 domain. Since SH2 domain targets Src to specific signaling complexes, we expressed CD2 as a cytosolic protein and studied whether it could act as a Src SH2 ligand in LLC-PK1 cells. Co-immunoprecipitation analyses indicated a direct binding of CD2 to Src, consistent with the in vitro binding data. Functionally, CD2 expression increased basal Src activity, suggesting a Src SH2 ligand-like property of CD2. Consistently, we found that CD2 expression attenuated several signaling pathways where Src plays an important role. For instance, although it increased surface expression of Na/K-ATPase, it decreased ouabain-induced activation of Src and ERK by blocking the formation of Na/K-ATPase/Src complex. Moreover, it also attenuated cell attachment-induced activation of Src/FAK. Consequently, CD2 delayed cell spreading, and inhibited cell proliferation. Furthermore, these effects appear to be Src-specific because CD2 expression had no effect on EGF-induced activation of EGF receptor and ERK. Hence, the new findings indicate the importance of Na/K-ATPase/Src interaction in ouabain-induced signal transduction, and support the proposition that the CD2 peptide may be utilized as a Src SH2 ligand capable of blocking Src-dependent signaling pathways via a different mechanism from a general Src kinase inhibitor.
Collapse
Affiliation(s)
- Moumita Banerjee
- Marshall Institute for Interdisciplinary Research (MIIR), Marshall University, Huntington, West Virginia, United States of America
| | - Qiming Duan
- Case Cardiovascular Research Institute, Department of Medicine, Case Western Reserve University School of Medicine and Harrington Heart and Vascular Institute, Cleveland, Ohio, United States of America
| | - Zijian Xie
- Marshall Institute for Interdisciplinary Research (MIIR), Marshall University, Huntington, West Virginia, United States of America
- * E-mail:
| |
Collapse
|
8
|
Haddon L, Hugh J. MUC1-mediated motility in breast cancer: a review highlighting the role of the MUC1/ICAM-1/Src signaling triad. Clin Exp Metastasis 2015; 32:393-403. [PMID: 25759211 DOI: 10.1007/s10585-015-9711-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 03/03/2015] [Indexed: 12/16/2022]
Abstract
Breast cancer is the most common cancer in women with the leading cause of death being metastasis, the spread of cancer to distant organs. For those patients with high-risk estrogen receptor positive (ER+) breast cancer, an increased expression of the glycoprotein MUC1 is associated with resistance to anti-hormonal therapy, metastasis and death. Tumor cells may use MUC1 to metastasize by exploiting the vascular adhesion pathways used by leukocytes during the inflammatory response. MUC1 is a type 1 transmembrane protein whose cytoplasmic tail acts as a scaffold for several signaling pathways including the non-receptor kinase Src, a signaling molecule involved in cell differentiation, proliferation, adhesion and motility. This review will highlight our current knowledge of how MUC1/ICAM-1 binding can lead to the recruitment and activation of Src and propose a novel role for lipid raft microdomains in this promigratory signaling. Improved understanding of the mechanism of metastases and the underlying signaling cascade is a prerequisite to the discovery of therapeutic targets to prevent metastasis and death in ER+ breast cancer patients.
Collapse
Affiliation(s)
- Lacey Haddon
- Department of Laboratory of Medicine and Pathology, University of Alberta, Edmonton, AB, Canada
| | | |
Collapse
|
9
|
Vohidov F, Coughlin JM, Ball ZT. Rhodium(II) Metallopeptide Catalyst Design Enables Fine Control in Selective Functionalization of Natural SH3 Domains. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411745] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
10
|
Vohidov F, Coughlin JM, Ball ZT. Rhodium(II) Metallopeptide Catalyst Design Enables Fine Control in Selective Functionalization of Natural SH3 Domains. Angew Chem Int Ed Engl 2015; 54:4587-91. [DOI: 10.1002/anie.201411745] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 01/13/2015] [Indexed: 12/29/2022]
|
11
|
Awad R, Sévajol M, Ayala I, Chouquet A, Frachet P, Gans P, Reiser JB, Kleman JP. The SH3 regulatory domain of the hematopoietic cell kinase Hck binds ELMO via its polyproline motif. FEBS Open Bio 2015; 5:99-106. [PMID: 25737835 PMCID: PMC4338372 DOI: 10.1016/j.fob.2015.01.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 01/23/2015] [Accepted: 01/30/2015] [Indexed: 12/27/2022] Open
Abstract
Eukaryotic EnguLfment and cell MOtility (ELMO) proteins form an evolutionary conserved family of regulators involved in small GTPase dependent actin remodeling processes that regulates the guanine exchange factor activity of some of the Downstream Of CrK (DOCK) family members. Gathered data strongly suggest that DOCK activation by ELMO and the subsequent signaling result from a subtle balance in the binding of partners to ELMO. Among its putative upward modulators, the Hematopoietic cell kinase (Hck), a member of the Src kinase superfamily, has been identified as a binding partner and a specific tyrosine kinase for ELMO1. Indeed, Hck is implicated in distinct molecular signaling pathways governing phagocytosis, cell adhesion, and migration of hematopoietic cells. Although ELMO1 has been shown to interact with the regulatory Src Homology 3 (SH3) domain of Hck, no direct evidence indicating the mode of interaction between Hck and ELMO1 have been provided in the literature. In the present study, we report convergent pieces of evidence that demonstrate the specific interaction between the SH3 domain of Hck and the polyproline motif of ELMO1. Our results also suggest that the tyrosine-phosphorylation state of ELMO1 tail might act as a putative modulator of Hck kinase activity towards ELMO1 that in turn participates in DOCK180 activation and further triggers subsequent signaling towards actin remodeling.
Collapse
Key Words
- DOCK, Downstream Of CrK protein family
- EAD, ELMO Autoregulatory Domain
- EID, ELMO Inhibitory Domain
- ELMO
- ELMO, EnguLfment and cell MOtility protein family
- ERM, Ezrin–Radixin–Moesin protein family
- FRET, Förster (Fluorescence) resonance energy transfer
- GEF, Guanine nucleotide Exchange Factor
- GSH, Glutathione (reduced)
- GST, Glutathione S-Transferase
- Hck
- Hck, Hematopoietic cell kinase
- PH, Pleckstrin Homology domain
- Phagocytosis
- Phosphorylation
- Polyproline
- PxP, Polyproline motif
- RBD, Rho-Binding Domain
- SH3
- SH3, Src Homology 3 domain
- TAMs, Tyro3, Axl and Mer receptor tyrosine kinase family
- TEV, Tobacco Etch Virus
Collapse
Affiliation(s)
- Rida Awad
- Univ. Grenoble Alpes, IBS, F-38044 Grenoble, France
| | | | - Isabel Ayala
- Univ. Grenoble Alpes, IBS, F-38044 Grenoble, France
| | | | | | - Pierre Gans
- Univ. Grenoble Alpes, IBS, F-38044 Grenoble, France
| | | | | |
Collapse
|
12
|
Xie Q, Fulton DB, Andreotti AH. A selective NMR probe to monitor the conformational transition from inactive to active kinase. ACS Chem Biol 2015; 10:262-8. [PMID: 25248068 PMCID: PMC4301085 DOI: 10.1021/cb5004702] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
Kinases control many aspects of cellular
signaling and are therefore
therapeutic targets for numerous disease states. Monitoring the conformational
changes that drive activation and inactivation of the catalytic kinase
core is a challenging experimental problem due to the dynamic nature
of these enzymes. We apply [13C] reductive methylation
to chemically introduce NMR-active nuclei into unlabeled protein kinases.
The results demonstrate that solution NMR spectroscopy can be used
to monitor specific changes in the chemical environment of structurally
important lysines in a [13C]-methylated kinase as it shifts
from the inactive to active state. This approach provides a solution
based method to complement X-ray crystallographic data and can be
applied to nearly any kinase, regardless of size or method of production.
Collapse
Affiliation(s)
- Qian Xie
- Roy J.
Carver Department
of Biochemistry, Biophysics and Molecular Biology, Iowa State University, Ames, Iowa 50011, United States
| | - D. Bruce Fulton
- Roy J.
Carver Department
of Biochemistry, Biophysics and Molecular Biology, Iowa State University, Ames, Iowa 50011, United States
| | - Amy H. Andreotti
- Roy J.
Carver Department
of Biochemistry, Biophysics and Molecular Biology, Iowa State University, Ames, Iowa 50011, United States
| |
Collapse
|
13
|
Register AC, Leonard SE, Maly DJ. SH2-catalytic domain linker heterogeneity influences allosteric coupling across the SFK family. Biochemistry 2014; 53:6910-23. [PMID: 25302671 PMCID: PMC4230323 DOI: 10.1021/bi5008194] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
Src-family
kinases (SFKs) make up a family of nine homologous multidomain
tyrosine kinases whose misregulation is responsible for human disease
(cancer, diabetes, inflammation, etc.). Despite overall sequence homology
and identical domain architecture, differences in SH3 and SH2 regulatory
domain accessibility and ability to allosterically autoinhibit the
ATP-binding site have been observed for the prototypical SFKs Src
and Hck. Biochemical and structural studies indicate that the SH2-catalytic
domain (SH2-CD) linker, the intramolecular binding epitope for SFK
SH3 domains, is responsible for allosterically coupling SH3 domain
engagement to autoinhibition of the ATP-binding site through the conformation
of the αC helix. As a relatively unconserved region between
SFK family members, SH2-CD linker sequence variability across the
SFK family is likely a source of nonredundant cellular functions between
individual SFKs via its effect on the availability of SH3 and SH2
domains for intermolecular interactions and post-translational modification.
Using a combination of SFKs engineered with enhanced or weakened regulatory
domain intramolecular interactions and conformation-selective inhibitors
that report αC helix conformation, this study explores how SH2-CD
sequence heterogeneity affects allosteric coupling across the SFK
family by examining Lyn, Fyn1, and Fyn2. Analyses of Fyn1 and Fyn2,
isoforms that are identical but for a 50-residue sequence spanning
the SH2-CD linker, demonstrate that SH2-CD linker sequence differences
can have profound effects on allosteric coupling between otherwise
identical kinases. Most notably, a dampened allosteric connection
between the SH3 domain and αC helix leads to greater autoinhibitory
phosphorylation by Csk, illustrating the complex effects of SH2-CD
linker sequence on cellular function.
Collapse
Affiliation(s)
- A C Register
- Department of Chemistry, University of Washington , Seattle, Washington 98195, United States
| | | | | |
Collapse
|
14
|
Polyproline-II Helix in Proteins: Structure and Function. J Mol Biol 2013; 425:2100-32. [DOI: 10.1016/j.jmb.2013.03.018] [Citation(s) in RCA: 363] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Revised: 02/28/2013] [Accepted: 03/11/2013] [Indexed: 12/31/2022]
|
15
|
Wortmann A, He Y, Christensen ME, Linn M, Lumley JW, Pollock PM, Waterhouse NJ, Hooper JD. Cellular settings mediating Src Substrate switching between focal adhesion kinase tyrosine 861 and CUB-domain-containing protein 1 (CDCP1) tyrosine 734. J Biol Chem 2011; 286:42303-42315. [PMID: 21994943 DOI: 10.1074/jbc.m111.227462] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Reciprocal interactions between Src family kinases (SFKs) and focal adhesion kinase (FAK) are critical during changes in cell attachment. Recently it has been recognized that another SFK substrate, CUB-domain-containing protein 1 (CDCP1), is differentially phosphorylated during these events. However, the molecular processes underlying SFK-mediated phosphorylation of CDCP1 are poorly understood. Here we identify a novel mechanism in which FAK tyrosine 861 and CDCP1-Tyr-734 compete as SFK substrates and demonstrate cellular settings in which SFKs switch between these sites. Our results show that stable CDCP1 expression induces robust SFK-mediated phosphorylation of CDCP1-Tyr-734 with concomitant loss of p-FAK-Tyr-861 in adherent HeLa cells. SFK substrate switching in these cells is dependent on the level of expression of CDCP1 and is also dependent on CDCP1-Tyr-734 but is independent of CDCP1-Tyr-743 and -Tyr-762. In HeLa CDCP1 cells, engagement of SFKs with CDCP1 is accompanied by an increase in phosphorylation of Src-Tyr-416 and a change in cell morphology to a fibroblastic appearance dependent on CDCP1-Tyr-734. SFK switching between FAK-Tyr-861 and CDCP1-Tyr-734 also occurs during changes in adhesion of colorectal cancer cell lines endogenously expressing these two proteins. Consistently, increased p-FAK-Tyr-861 levels and a more epithelial morphology are seen in colon cancer SW480 cells silenced for CDCP1. Unlike protein kinase Cδ, FAK does not appear to form a trimeric complex with Src and CDCP1. These data demonstrate novel aspects of the dynamics of SFK-mediated cell signaling that may be relevant during cancer progression.
Collapse
Affiliation(s)
- Andreas Wortmann
- Mater Medical Research Institute, Aubigny Place, Raymond Terrace, South Brisbane, Queensland 4101; Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Queensland 4059
| | - Yaowu He
- Mater Medical Research Institute, Aubigny Place, Raymond Terrace, South Brisbane, Queensland 4101
| | - Melinda E Christensen
- Mater Medical Research Institute, Aubigny Place, Raymond Terrace, South Brisbane, Queensland 4101
| | - MayLa Linn
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Queensland 4059
| | - John W Lumley
- Wesley Medical Centre, Auchenflower, Queensland 4066, Australia
| | - Pamela M Pollock
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Queensland 4059
| | - Nigel J Waterhouse
- Mater Medical Research Institute, Aubigny Place, Raymond Terrace, South Brisbane, Queensland 4101
| | - John D Hooper
- Mater Medical Research Institute, Aubigny Place, Raymond Terrace, South Brisbane, Queensland 4101.
| |
Collapse
|
16
|
Uekita T, Sakai R. Roles of CUB domain-containing protein 1 signaling in cancer invasion and metastasis. Cancer Sci 2011; 102:1943-8. [PMID: 21812858 DOI: 10.1111/j.1349-7006.2011.02052.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Tumor metastasis is a complex multistep process by which cells from the primary tumor invade tissues, move through the vasculature, settle at distant sites and eventually grow to form secondary tumors. Altered tyrosine phosphorylation signals in cancer cells contribute to a number of aberrant characteristics involved in tumor invasion and metastasis. CUB domain-containing protein 1 (CDCP1) is a substrate of Src family kinases and has been shown to regulate anoikis resistance, migration and matrix degradation during tumor invasion and metastasis in a tyrosine phosphorylation-dependent manner. Knockdown of CDCP1 blocks tumor metastasis or peritoneal dissemination in vivo, without significantly affecting cell proliferation. Moreover, expression levels of CDCP1 are of prognostic value in several cancers. Here, we summarize the studies on CDCP1, focusing on structure and signal transduction, to gain insight into its role in cancer progression. Understanding the signaling pathways regulated by CDCP1 could help establish novel therapeutic strategies against the progression of cancer.
Collapse
Affiliation(s)
- Takamasa Uekita
- Division of Metastasis and Invasion Signaling, National Cancer Center Research Institute, Tokyo, Japan
| | | |
Collapse
|
17
|
Bogdelis A, Treinys R, Stankevičius E, Jurevičius J, Skeberdis VA. Src family protein tyrosine kinases modulate L-type calcium current in human atrial myocytes. Biochem Biophys Res Commun 2011; 413:116-21. [PMID: 21872572 DOI: 10.1016/j.bbrc.2011.08.066] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2011] [Accepted: 08/15/2011] [Indexed: 10/17/2022]
Abstract
In the heart, L-type voltage dependent calcium channels (L-VDCC) provide Ca(2+) for the activation of contractile apparatus. The best described pathway for L-type Ca(2+) current (I(Ca,L)) modulation is the phosphorylation of calcium channels by cAMP-dependent protein kinase A (PKA), the activity of which is predominantly regulated in opposite manner by β-adrenergic (β-ARs) and muscarinic receptors. The role of other kinases is controversial and often depends on tissues and species used in the studies. In different studies the inhibitors of tyrosine kinases have been shown either to stimulate or inhibit, or even have a biphasic effect on I(Ca,L). Moreover, there is no clear picture about the route of activation and the site of action of cardiac Src family nonreceptor tyrosine kinases (Src-nPTKs). In the present study we used PP1, a selective inhibitor of Src-nPTKs, alone and together with different activators of I(Ca,L), and demonstrated that in human atrial myocytes (HAMs): (i) Src-nPTKs are activated concomitantly with activation of cAMP-signaling cascade; (ii) Src-nPTKs attenuate PKA-dependent stimulation of I(Ca,L) by inhibiting PKA activity; (iii) Gα(s) are not involved in the direct activation of Src-nPTKs. In this way, Src-nPTKs may provide a protecting mechanism against myocardial overload under conditions of increased sympathetic activity.
Collapse
Affiliation(s)
- Andrius Bogdelis
- Lithuanian University of Health Sciences, Institute of Cardiology, 50009 Kaunas, Lithuania
| | | | | | | | | |
Collapse
|
18
|
The Src, Syk, and Tec family kinases: distinct types of molecular switches. Cell Signal 2010; 22:1175-84. [PMID: 20206686 DOI: 10.1016/j.cellsig.2010.03.001] [Citation(s) in RCA: 178] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2010] [Accepted: 03/01/2010] [Indexed: 01/03/2023]
Abstract
The Src, Syk, and Tec family kinases are three of the most well characterized tyrosine kinase families found in the human genome. Members of these kinase families function downstream of antigen and F(c) receptors in hematopoietic cells and transduce signals leading to calcium mobilization, altered gene expression, cytokine production, and cell proliferation. Over the last several years, structural and biochemical studies have begun to uncover the molecular mechanisms regulating activation of these kinases. It appears that each kinase family functions as a distinct type of molecular switch. This review discusses the activation of the Src, Syk, and Tec kinases from the perspective of structure, phosphorylation, allosteric regulation, and kinetics. The multiple factors that regulate the Src, Syk, and Tec families illustrate the important role played by each of these kinases in immune cell signaling.
Collapse
|
19
|
Bae H, Gray JS, Li M, Vines L, Kim J, Pestka JJ. Hematopoietic cell kinase associates with the 40S ribosomal subunit and mediates the ribotoxic stress response to deoxynivalenol in mononuclear phagocytes. Toxicol Sci 2010; 115:444-52. [PMID: 20181660 DOI: 10.1093/toxsci/kfq055] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The trichothecene deoxynivalenol (DON) binds to eukaryotic ribosomes and triggers p38-driven proinflammatory gene expression in the macrophage-a response that is dependent on both double-stranded RNA-activated protein kinase (PKR) and hematopoietic cell kinase (Hck). Here we elucidated critical linkages that exist among the ribosome and these kinases during the course of DON-induced ribotoxic stress in mononuclear phagocytes. Similar to PKR inhibitors, Hck inhibitor 4-amino-5-(4-chlorophenyl)-7-(t-butyl)pyrazolo[3,4-d]pyramidine (PP2) suppressed p38 activation and p38-driven interleukin 8 (IL-8) expression in the U937 human monocyte cell line. U937 cells stably transfected with a PKR antisense vector (U9K-A1) displayed marked reduction of DON-induced p38 activation and IL-8 expression as compared to cells transfected with empty vector (U9K-C2), with both responses being completely ablated by PP2. Western analysis of sucrose density gradient fractions revealed that PKR and Hck interacted with the 40S ribosomal subunit in U9K-C2 but not U9K-A1 cells. Subsequent transfection and immunoprecipitation studies with HeLa cells indicated that Hck interacted with ribosomal protein S3. Consistent with U937 cells, DON induced p38 association with the ribosome and phosphorylation in peritoneal macrophages from wild-type but not PKR-deficient mice. DON-induced phosphorylation of ribosome-associated Hck in RAW 264.7 murine macrophages was also suppressed by 2-aminopurine (2-AP). Both 2-AP and PP2 inhibited DON-induced phosphorylation of p38 as well as two kinases, apoptosis signal-regulating kinase 1 and mitogen-activated protein kinase 3/6, known to be upstream of p38. Taken together, PKR and Hck were critical for DON-induced ribosomal recruitment of p38, its subsequent phosphorylation, and, ultimately, p38-driven proinflammatory cytokine expression.
Collapse
Affiliation(s)
- Heekyong Bae
- Center for Integrative Toxicology, Michigan State University, East Lansing, Michigan 48824-1224, USA
| | | | | | | | | | | |
Collapse
|
20
|
Kaimachnikov NP, Kholodenko BN. Toggle switches, pulses and oscillations are intrinsic properties of the Src activation/deactivation cycle. FEBS J 2009; 276:4102-18. [PMID: 19627364 DOI: 10.1111/j.1742-4658.2009.07117.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Src-family kinases (SFKs) play a pivotal role in growth factor signaling, mitosis, cell motility and invasiveness. In their basal state, SFKs maintain a closed autoinhibited conformation, where the Src homology 2 domain interacts with an inhibitory phosphotyrosine in the C-terminus. Activation involves dephosphorylation of this inhibitory phosphotyrosine, followed by intermolecular autophosphorylation of a specific tyrosine residue in the activation loop. The spatiotemporal dynamics of SFK activation controls cell behavior, yet these dynamics remain largely uninvestigated. In the present study, we show that the basic properties of the Src activation/deactivation cycle can bring about complex signaling dynamics, including oscillations, toggle switches and excitable behavior. These intricate dynamics do not require imposed external feedback loops and occur at constant activities of Src inhibitors and activators, such as C-terminal Src kinase and receptor-type protein tyrosine phosphatases. We demonstrate that C-terminal Src kinase and receptor-type protein tyrosine phosphatase underexpression or their simultaneous overexpression can transform Src response patterns into oscillatory or bistable responses, respectively. Similarly, Src overexpression leads to dysregulation of Src activity, promoting sustained self-perpetuating oscillations. Distinct types of responses can allow SFKs to trigger different cell-fate decisions, where cellular outcomes are determined by the stimulation threshold and history. Our mathematical model helps to understand the puzzling experimental observations and suggests conditions where these different kinetic behaviors of SFKs can be tested experimentally.
Collapse
Affiliation(s)
- Nikolai P Kaimachnikov
- Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | | |
Collapse
|
21
|
Pawson T, Kofler M. Kinome signaling through regulated protein-protein interactions in normal and cancer cells. Curr Opin Cell Biol 2009; 21:147-53. [PMID: 19299117 DOI: 10.1016/j.ceb.2009.02.005] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2009] [Accepted: 02/10/2009] [Indexed: 11/25/2022]
Abstract
The flow of molecular information through normal and oncogenic signaling pathways frequently depends on protein phosphorylation, mediated by specific kinases, and the selective binding of the resulting phosphorylation sites to interaction domains present on downstream targets. This physical and functional interplay of catalytic and interaction domains can be clearly seen in cytoplasmic tyrosine kinases such as Src, Abl, Fes, and ZAP-70. Although the kinase and SH2 domains of these proteins possess similar intrinsic properties of phosphorylating tyrosine residues or binding phosphotyrosine sites, they also undergo intramolecular interactions when linked together, in a fashion that varies from protein to protein. These cooperative interactions can have diverse effects on substrate recognition and kinase activity, and provide a variety of mechanisms to link the stimulation of catalytic activity to substrate recognition. Taken together, these data have suggested how protein kinases, and the signaling pathways in which they are embedded, can evolve complex properties through the stepwise linkage of domains within single polypeptides or multi-protein assemblies.
Collapse
Affiliation(s)
- Tony Pawson
- Samuel Lunenfeld Research Institute, Mt Sinai Hospital, Toronto, Ontario, Canada.
| | | |
Collapse
|
22
|
Yadav SS, Miller WT. The evolutionarily conserved arrangement of domains in SRC family kinases is important for substrate recognition. Biochemistry 2008; 47:10871-80. [PMID: 18803405 DOI: 10.1021/bi800930e] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The SH3-SH2-kinase domain arrangement in nonreceptor tyrosine kinases has been conserved throughout evolution. For Src family kinases, the relative positions of the domains are important for enzyme regulation; they permit the assembly of Src kinases into autoinhibited conformations. The SH3 and SH2 domains of Src family kinases have an additional role in determining the substrate specificity of the kinase. We addressed the question of whether the domain arrangement of Src family kinases has a role in substrate specificity by producing mutants with alternative arrangements. Our results suggest that changes in the positions of domains can lead to specific changes in the phosphorylation of Sam68 and Cas by Src. Phosphorylation of Cas by several mutants triggers downstream signaling leading to cell migration. The placement of the SH2 domain with respect to the catalytic domain of Src appears to be especially important for proper substrate recognition, while the placement of the SH3 domain is more flexible. The results suggest that the involvement of the SH3 and SH2 domains in substrate recognition is one reason for the strict conservation of the SH3-SH2-kinase architecture.
Collapse
Affiliation(s)
- Shalini S Yadav
- Department of Physiology and Biophysics, School of Medicine, Stony Brook University, Stony Brook, New York 11794-8661, USA
| | | |
Collapse
|
23
|
Guiet R, Poincloux R, Castandet J, Marois L, Labrousse A, Le Cabec V, Maridonneau-Parini I. Hematopoietic cell kinase (Hck) isoforms and phagocyte duties – From signaling and actin reorganization to migration and phagocytosis. Eur J Cell Biol 2008; 87:527-42. [DOI: 10.1016/j.ejcb.2008.03.008] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2007] [Revised: 03/06/2008] [Accepted: 03/11/2008] [Indexed: 01/21/2023] Open
|