Abstract
A full-length cDNA encoding a putative Na+ channel (GFLN1) has been cloned from a library prepared from the stellate ganglion of Loligo opalescens. The cDNA encodes a predicted protein of 1784 amino acids. Regions of the GFLN1 protein with defined functional importance (membrane span S4, the SS1 and SS2 segments, and interdomain III-IV) are highly conserved among all vertebrate Na+ channel alpha-subunit structures. Northern blot hybridization and RNase protection assays verify that mRNA corresponding to GFLN1 is expressed in neurons of the giant fiber lobe that form the giant axon. We propose that GFLN1 encodes the Na+ channel that has been extensively studied in the squid axon.
MeSH Terms
Amino Acid Sequence
Animals
Axons/metabolism
Base Sequence
Conserved Sequence
DNA Primers
DNA, Complementary
Decapodiformes/metabolism
Electrophorus
Gene Expression
Gene Library
Molecular Sequence Data
Polymerase Chain Reaction
RNA, Antisense
RNA, Messenger/biosynthesis,isolation & purification
Rats
Sequence Homology, Amino Acid
Sodium Channels/biosynthesis,chemistry
Stellate Ganglion/metabolism
Chemicals
DNA Primers
DNA, Complementary
GFLN1 protein, Loligo opalescens
RNA, Antisense
RNA, Messenger
Sodium Channels
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Rosenthal J J
Hopkins Marine Station, Stanford University, Department of Biological Sciences, Pacific Grove, CA 93950-3094.
Gilly W F
References (31)
31 references, click to expand
-
Structural parts involved in activation and inactivation of the sodium channel.
Nature. 1989 Jun 22;339(6226):597-603
PMID: 2543931
-
Molecular analysis of the para locus, a sodium channel gene in Drosophila.
Cell. 1989 Sep 22;58(6):1143-54
PMID: 2550145
-
Molecular cloning of a putative tetrodotoxin-resistant rat heart Na+ channel isoform.
Proc Natl Acad Sci U S A. 1989 Oct;86(20):8170-4
PMID: 2554302
-
Primary structure and functional expression of a mammalian skeletal muscle sodium channel.
Neuron. 1989 Jul;3(1):33-49
PMID: 2559760
-
Primary structure and expression of a sodium channel characteristic of denervated and immature rat skeletal muscle.
Neuron. 1990 Feb;4(2):233-42
PMID: 2155010
-
Alterations in the expression and gating of Drosophila sodium channels by mutations in the para gene.
Neuron. 1989 Apr;2(4):1301-11
PMID: 2560637
-
Jet-propelled escape in the squid Loligo opalescens: concerted control by giant and non-giant motor axon pathways.
Proc Natl Acad Sci U S A. 1990 Apr;87(8):2911-5
PMID: 2326255
-
Control of the spatial distribution of sodium channels in giant fiber lobe neurons of the squid.
Neuron. 1990 Nov;5(5):663-74
PMID: 2171590
-
Cloning and expression of an Aplysia K+ channel and comparison with native Aplysia K+ currents.
J Neurosci. 1991 Apr;11(4):918-27
PMID: 2010814
-
'Touchdown' PCR to circumvent spurious priming during gene amplification.
Nucleic Acids Res. 1991 Jul 25;19(14):4008
PMID: 1861999
-
Single-channel, macroscopic, and gating currents from sodium channels in the squid giant axon.
Biophys J. 1991 Dec;60(6):1499-510
PMID: 1663795
-
Alternatively spliced sodium channel transcripts in brain and muscle.
J Neurosci. 1992 Apr;12(4):1370-81
PMID: 1313493
-
Calcium channel characteristics conferred on the sodium channel by single mutations.
Nature. 1992 Apr 2;356(6368):441-3
PMID: 1313551
-
Molecular cloning of an atypical voltage-gated sodium channel expressed in human heart and uterus: evidence for a distinct gene family.
Proc Natl Acad Sci U S A. 1992 Jun 1;89(11):4893-7
PMID: 1317577
-
Primary structure of squid sodium channel deduced from the complementary DNA sequence.
Biochem Biophys Res Commun. 1992 Jul 15;186(1):61-8
PMID: 1339273
-
Deduced amino acid sequence of a putative sodium channel from the scyphozoan jellyfish Cyanea capillata.
Proc Natl Acad Sci U S A. 1993 Aug 1;90(15):7419-23
PMID: 8394021
-
A quantitative description of membrane current and its application to conduction and excitation in nerve.
J Physiol. 1952 Aug;117(4):500-44
PMID: 12991237
-
3' non-coding region sequences in eukaryotic messenger RNA.
Nature. 1976 Sep 16;263(5574):211-4
PMID: 822353
-
Sodium channels and gating currents.
Physiol Rev. 1981 Jul;61(3):644-83
PMID: 6265962
-
A simple method for displaying the hydropathic character of a protein.
J Mol Biol. 1982 May 5;157(1):105-32
PMID: 7108955
-
A method for isolation of intact, translationally active ribonucleic acid.
DNA. 1983;2(4):329-35
PMID: 6198133
-
Primary structure of Electrophorus electricus sodium channel deduced from cDNA sequence.
Nature. 1984 Nov 8-14;312(5990):121-7
PMID: 6209577
-
Existence of distinct sodium channel messenger RNAs in rat brain.
Nature. 1986 Mar 13-19;320(6058):188-92
PMID: 3754035
-
An integrated view of the molecular toxinology of sodium channel gating in excitable cells.
Annu Rev Neurosci. 1987;10:237-67
PMID: 2436544
-
Single-step method of RNA isolation by acid guanidinium thiocyanate-phenol-chloroform extraction.
Anal Biochem. 1987 Apr;162(1):156-9
PMID: 2440339
-
Modulation of sodium-channel mRNA levels in rat skeletal muscle.
Proc Natl Acad Sci U S A. 1987 Dec;84(23):8721-5
PMID: 2446331
-
In vitro RNA synthesis with SP6 RNA polymerase.
Methods Enzymol. 1987;155:397-415
PMID: 2828872
-
Selective induction of brain type II Na+ channels by nerve growth factor.
Proc Natl Acad Sci U S A. 1988 Feb;85(3):924-8
PMID: 2448784
-
Primary structure of rat brain sodium channel III deduced from the cDNA sequence.
FEBS Lett. 1988 Feb 8;228(1):187-94
PMID: 2449363
-
Probing the molecular structure of the voltage-dependent sodium channel.
Annu Rev Neurosci. 1988;11:455-95
PMID: 2452597
-
The scanning model for translation: an update.
J Cell Biol. 1989 Feb;108(2):229-41
PMID: 2645293