| http://purl.uniprot.org/citations/16857708 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/16857708 | http://www.w3.org/2000/01/rdf-schema#comment | "N-type Ca(V)2.2 calcium channels localize to presynaptic nerve terminals of nociceptors where they control neurotransmitter release. Nociceptive neurons express a unique set of ion channels and receptors important for optimizing their role in transmission of noxious stimuli. Included among these is a structurally and functionally distinct N-type calcium channel splice isoform, Ca(V)2.2e[37a], expressed in a subset of nociceptors and with limited expression in other parts of the nervous system. Ca(V)2.2[e37a] arises from the mutually exclusive replacement of e37a for e37b in the C-terminus of Ca(V)2.2 mRNA. N-type current densities in nociceptors that express a combination of Ca(V)2.2e[37a] and Ca(V)2.2e[37b] mRNAs are significantly larger compared to cells that express only Ca(V)2.2e[37b]. Here we show that e37a supports increased expression of functional N-type channels and an increase in channel open time as compared to Ca(V)2.2 channels that contain e37b. To understand how e37a affects N-type currents we compared macroscopic and single-channel ionic currents as well as gating currents in tsA201 cells expressing Ca(V)2.2e[37a] and Ca(V)2.2e[37b]. When activated, Ca(V)2.2e[37a] channels remain open for longer and are expressed at higher density than Ca(V)2.2e[37b] channels. These unique features of the Ca(V)2.2e[37a] isoform combine to augment substantially the amount of calcium that enters cells in response to action potentials. Our studies of the e37a/e37b splice site reveal a multifunctional domain in the C-terminus of Ca(V)2.2 that regulates the overall activity of N-type calcium channels in nociceptors."xsd:string |
| http://purl.uniprot.org/citations/16857708 | http://purl.org/dc/terms/identifier | "doi:10.1113/jphysiol.2006.115030"xsd:string |
| http://purl.uniprot.org/citations/16857708 | http://purl.uniprot.org/core/author | "Raingo J."xsd:string |
| http://purl.uniprot.org/citations/16857708 | http://purl.uniprot.org/core/author | "Lipscombe D."xsd:string |
| http://purl.uniprot.org/citations/16857708 | http://purl.uniprot.org/core/author | "Castiglioni A.J."xsd:string |
| http://purl.uniprot.org/citations/16857708 | http://purl.uniprot.org/core/date | "2006"xsd:gYear |
| http://purl.uniprot.org/citations/16857708 | http://purl.uniprot.org/core/name | "J Physiol"xsd:string |
| http://purl.uniprot.org/citations/16857708 | http://purl.uniprot.org/core/pages | "119-134"xsd:string |
| http://purl.uniprot.org/citations/16857708 | http://purl.uniprot.org/core/title | "Alternative splicing in the C-terminus of CaV2.2 controls expression and gating of N-type calcium channels."xsd:string |
| http://purl.uniprot.org/citations/16857708 | http://purl.uniprot.org/core/volume | "576"xsd:string |
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