PTP sigma functions as a presynaptic receptor for the glypican-4/LRRTM4 complex and is essential for excitatory synaptic transmission
DC Field | Value | Language |
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dc.contributor.author | Ko, Ji Seung | - |
dc.contributor.author | Pramanik, Gopal | - |
dc.contributor.author | Um, Ji Won | - |
dc.contributor.author | Shim, Ji Seon | - |
dc.contributor.author | Lee, Dongmin | - |
dc.contributor.author | Kim, Kee Hun | - |
dc.contributor.author | Chung, Gug-Young | - |
dc.contributor.author | Condomitti, Giuseppe | - |
dc.contributor.author | Kim, Ho Min | - |
dc.contributor.author | Kim, Hyun | - |
dc.contributor.author | de Wit, Joris | - |
dc.contributor.author | Park, Kang-Sik | - |
dc.contributor.author | Tabuchi, Katsuhiko | - |
dc.contributor.author | Ko, Jaewon | - |
dc.date.accessioned | 2021-09-04T19:13:48Z | - |
dc.date.available | 2021-09-04T19:13:48Z | - |
dc.date.created | 2021-06-15 | - |
dc.date.issued | 2015-02-10 | - |
dc.identifier.issn | 0027-8424 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/94405 | - |
dc.description.abstract | Leukocyte common antigen-related receptor protein tyrosine phosphatases-comprising LAR, PTP delta, and PTP sigma-are synaptic adhesion molecules that organize synapse development. Here, we identify glypican 4 (GPC-4) as a ligand for PTP sigma. GPC-4 showed strong (nanomolar) affinity and heparan sulfate (HS)-dependent interaction with the Ig domains of PTP sigma. PTP sigma bound only to proteolytically cleaved GPC-4 and formed additional complex with leucine-rich repeat transmembrane protein 4 (LRRTM4) in rat brains. Moreover, single knockdown (KD) of PTP sigma, but not LAR, in cultured neurons significantly reduced the synaptogenic activity of LRRTM4, a postsynaptic ligand of GPC-4, in heterologous synapse-formation assays. Finally, PTP sigma KD dramatically decreased both the frequency and amplitude of excitatory synaptic transmission. This effect was reversed by wild-type PTP sigma, but not by a HS-binding-defective PTP sigma mutant. Our results collectively suggest that presynaptic PTP sigma, together with GPC-4, acts in a HS-dependent manner to maintain excitatory synapse development and function. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | NATL ACAD SCIENCES | - |
dc.subject | HEPARAN-SULFATE PROTEOGLYCANS | - |
dc.subject | PROTEIN-TYROSINE PHOSPHATASES | - |
dc.subject | CENTRAL-NERVOUS-SYSTEM | - |
dc.subject | MIDLINE AXON GUIDANCE | - |
dc.subject | ADHESION MOLECULES | - |
dc.subject | TRANSSYNAPTIC INTERACTION | - |
dc.subject | SLIT PROTEIN | - |
dc.subject | LAR | - |
dc.subject | DROSOPHILA | - |
dc.subject | GLYPICANS | - |
dc.title | PTP sigma functions as a presynaptic receptor for the glypican-4/LRRTM4 complex and is essential for excitatory synaptic transmission | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Hyun | - |
dc.identifier.doi | 10.1073/pnas.1410138112 | - |
dc.identifier.scopusid | 2-s2.0-84922624895 | - |
dc.identifier.wosid | 000349204200062 | - |
dc.identifier.bibliographicCitation | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, v.112, no.6, pp.1874 - 1879 | - |
dc.relation.isPartOf | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | - |
dc.citation.title | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | - |
dc.citation.volume | 112 | - |
dc.citation.number | 6 | - |
dc.citation.startPage | 1874 | - |
dc.citation.endPage | 1879 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalWebOfScienceCategory | Multidisciplinary Sciences | - |
dc.subject.keywordPlus | HEPARAN-SULFATE PROTEOGLYCANS | - |
dc.subject.keywordPlus | PROTEIN-TYROSINE PHOSPHATASES | - |
dc.subject.keywordPlus | CENTRAL-NERVOUS-SYSTEM | - |
dc.subject.keywordPlus | MIDLINE AXON GUIDANCE | - |
dc.subject.keywordPlus | ADHESION MOLECULES | - |
dc.subject.keywordPlus | TRANSSYNAPTIC INTERACTION | - |
dc.subject.keywordPlus | SLIT PROTEIN | - |
dc.subject.keywordPlus | LAR | - |
dc.subject.keywordPlus | DROSOPHILA | - |
dc.subject.keywordPlus | GLYPICANS | - |
dc.subject.keywordAuthor | PTPs | - |
dc.subject.keywordAuthor | glypican | - |
dc.subject.keywordAuthor | LRRTM4 | - |
dc.subject.keywordAuthor | synaptic cell adhesion | - |
dc.subject.keywordAuthor | heparan sulfate | - |
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