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Taylor PL, Kellman AG, Rice BW, Humphreys DA. Experimental measurements of the current, temperature, and density profile changes during a disruption in the DIII-D tokamak. PHYSICAL REVIEW LETTERS 1996; 76:916-919. [PMID: 10061584 DOI: 10.1103/physrevlett.76.916] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Wang XY, Taylor PL. Devil's staircase, critical thickness, and propagating fingers in antiferroelectric liquid crystals. PHYSICAL REVIEW LETTERS 1996; 76:640-643. [PMID: 10061510 DOI: 10.1103/physrevlett.76.640] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Li JF, Wang XY, Kangas E, Taylor PL, Rosenblatt C, Suzuki YI, Cladis PE. Reversible propagating fingers in an antiferroelectric liquid crystal. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:13075-13078. [PMID: 9980482 DOI: 10.1103/physrevb.52.r13075] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Taylor PL. Combining conventional group and individualized instruction: an instructional strategy for deaf and hard of hearing learner-diverse groups. AMERICAN ANNALS OF THE DEAF 1995; 140:333-337. [PMID: 8849662 DOI: 10.1353/aad.2012.0373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Group and individualized instruction as an instructional strategy employs both classroom and individual interactions with deaf and hard of hearing students who have diverse learning and communicative styles. The instructional setting is an applications course which includes a laboratory component. Lectures are replete with personal computer (PC) demonstrations and are followed by laboratory sessions where each student independently replicates the techniques learned in class. Criterion referenced instructional (CRI) methods are used in the evaluation of each student's subject knowledge through direct observation of the student's use of a personal computer in a private setting. The goal of this strategy is to maintain the amenities of the classroom while replacing homework and examinations with individually paced competency-based assignments. The end result is the differentiation of a student's performance evaluations from his or her reading and writing skills.
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Krupenkin TN, Taylor PL. Microscopic theory of chain pullout in polymeric liquid crystals. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:6400-6410. [PMID: 9981868 DOI: 10.1103/physrevb.52.6400] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Essam JW, Lin JC, Taylor PL. Potts model on the Bethe lattice with mixed interactions. PHYSICAL REVIEW. E, STATISTICAL PHYSICS, PLASMAS, FLUIDS, AND RELATED INTERDISCIPLINARY TOPICS 1995; 52:44-52. [PMID: 9963402 DOI: 10.1103/physreve.52.44] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Oliveira FA, Taylor PL. Breaking in polymer chains. II. The Lennard‐Jones chain. J Chem Phys 1994. [DOI: 10.1063/1.468000] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Lin JC, Taylor PL. Exact results for the lower critical solution temperature in an asymmetric model of an interacting binary mixture. PHYSICAL REVIEW LETTERS 1994; 73:2863-2866. [PMID: 10057215 DOI: 10.1103/physrevlett.73.2863] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Lin B, Taylor PL. Model of spatiotemporal dynamics of stick-slip motion. PHYSICAL REVIEW. E, STATISTICAL PHYSICS, PLASMAS, FLUIDS, AND RELATED INTERDISCIPLINARY TOPICS 1994; 49:3940-3947. [PMID: 9961682 DOI: 10.1103/physreve.49.3940] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Lin JC, Taylor PL. Dynamic approach to phase separation of a mixture of monomers and polymers. PHYSICAL REVIEW. E, STATISTICAL PHYSICS, PLASMAS, FLUIDS, AND RELATED INTERDISCIPLINARY TOPICS 1994; 49:4258-4262. [PMID: 9961718 DOI: 10.1103/physreve.49.4258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Lin JC, Taylor PL. Exact results for phase separation in an asymmetric model of an interacting binary mixture. PHYSICAL REVIEW. E, STATISTICAL PHYSICS, PLASMAS, FLUIDS, AND RELATED INTERDISCIPLINARY TOPICS 1994; 49:2058-2061. [PMID: 9961446 DOI: 10.1103/physreve.49.2058] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Lin JC, Taylor PL. Kinetic phase transition in polymerization. PHYSICAL REVIEW. E, STATISTICAL PHYSICS, PLASMAS, FLUIDS, AND RELATED INTERDISCIPLINARY TOPICS 1994; 49:2476-2479. [PMID: 9961495 DOI: 10.1103/physreve.49.2476] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Cook JV, Faccenda E, Anderson L, Couper GG, Eidne KA, Taylor PL. Effects of Asn87 and Asp318 mutations on ligand binding and signal transduction in the rat GnRH receptor. J Endocrinol 1993; 139:R1-4. [PMID: 8133203 DOI: 10.1677/joe.0.139r001] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The gonadotrophin-releasing hormone (GnRH) receptor is unlike other G-protein coupled receptors in that the highly conserved amino acids, Asp in the second transmembrane region and Asn in the seventh, are interchanged. Site-directed mutagenesis studies mutated these residues back to their normally conserved positions. Two single mutants Asn87Asp & Asp318Asn and one double mutant Asn87Asp Asp318Asn were transiently expressed in COS-1 cells and their effect on binding to GnRH and inositol phosphate production measured. The single mutant Asp318Asn had no effect on ligand binding but abolished GnRH-dependent inositol phosphate production, whereas mutations Asn87Asp and Asn87Asp Asp318Asn show a complete loss of GnRH binding and subsequent inactivation of its second messenger system.
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Lin JC, Taylor PL. Exact solution of a phase-separation model with conserved-order-parameter dynamics and arbitrary initial concentration. PHYSICAL REVIEW. E, STATISTICAL PHYSICS, PLASMAS, FLUIDS, AND RELATED INTERDISCIPLINARY TOPICS 1993; 48:4305-4308. [PMID: 9961111 DOI: 10.1103/physreve.48.4305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Duthie SM, Taylor PL, Eidne KA. Characterization of the mouse thyrotrophin-releasing hormone receptor gene: an exon corresponds to a deletion in the rat cDNA. J Mol Endocrinol 1993; 11:141-9. [PMID: 8297470 DOI: 10.1677/jme.0.0110141] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The cloning and characterization of the mouse TRH receptor (TRH-R) gene revealed an untranslated exon (exon 1), a single intron and an upstream dinucleotide repeat sequence (d(TG)16.d(AG)21) in the 5' untranslated region (UTR). The coding region was contained almost entirely on a second exon (exon 2), with the final amino acid and stop codon at the COOH terminus of the gene encoded by a third exon (exon 3) flanked by two introns. The 3' UTR was contained on the remainder of exon 3 and on the final exon (exon 4). Exon 3 (228 bp) corresponds exactly to a 228 bp deletion that exists in the rat TRH-R cDNA, but not in the mouse cDNA. The mouse TRH-R cDNA encodes a protein of 393 amino acids which is 96% homologous to the rat TRH-R protein of 412 amino acids, but is 19 amino acids shorter at its COOH terminus. The coding sequence for these 19 amino acids (plus 1 extra amino acid) does exist in the mouse TRH-R gene, but the sequence is encoded by exon 4, separated from the rest of the coding region by the stop codon and 223 bp of 3' UTR on exon 3. Splicing of exon 3 in the mouse TRH-R gene would remove the last amino acid, the stop codon and the 223 bp of 3' UTR, allowing transcription to continue into the 3' UTR on exon 4, which encodes the 19 extra amino acids found in the rat cDNA.(ABSTRACT TRUNCATED AT 250 WORDS)
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Duthie SM, Taylor PL, Anderson L, Cook J, Eidne KA. Cloning and functional characterisation of the human TRH receptor. Mol Cell Endocrinol 1993; 95:R11-5. [PMID: 8243797 DOI: 10.1016/0303-7207(93)90043-j] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Thyrotrophin-releasing hormone (TRH) is a hypothalamic tripeptide known to act via its receptor in the anterior pituitary gland to stimulate the release of thyrotrophin (TSH) from thyrotrophs and prolactin (PRL) from lactotrophs. It is also thought to act as a neurotransmitter/neuromodulator in the central and peripheral nervous systems. We have isolated a cDNA encoding the human pituitary TRH receptor (TRH-R) protein with a predicted amino acid sequence of 398 amino acids. Comparison of the amino acid sequences of the human TRH-R with the previously published rodent TRH-Rs showed that it is similar to both the rat and mouse TRH-Rs, except that each species has variant amino acids at the carboxy (COOH) terminus. The human TRH-R belongs to the family of seven transmembrane domain, G-protein-coupled receptors, and it is believed that the COOH terminal region of this family of receptors may play an important role in receptor downregulation/internalisation, and possibly G-protein coupling. COS-1 cells expressing the human TRH-R showed high affinity receptor binding. Stimulation of these cells with TRH produced a typical phosphoinositide response and mobilisation of intracellular calcium [Ca2+]i.
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Lin JC, Taylor PL. Symmetry-breaking schemes for the Potts model on a Bethe lattice. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:7216-7220. [PMID: 10006890 DOI: 10.1103/physrevb.48.7216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Brooks J, Taylor PL, Saunders PT, Eidne KA, Struthers WJ, McNeilly AS. Cloning and sequencing of the sheep pituitary gonadotropin-releasing hormone receptor and changes in expression of its mRNA during the estrous cycle. Mol Cell Endocrinol 1993; 94:R23-7. [PMID: 8224516 DOI: 10.1016/0303-7207(93)90177-l] [Citation(s) in RCA: 91] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
We have isolated a full length cDNA clone coding for the sheep GnRH receptor (GnRH-R). The amino acid sequence shows greater homology to the human GnRH-R sequence than the two rodent receptors published so far. We have also carried out physiological studies investigating the pattern of expression of the GnRH-R mRNA throughout the estrous cycle. GnRH receptor mRNA and GnRH binding levels were both significantly (P < 0.05) increased over luteal levels up until the time of the preovulatory LH surge, whilst post-surge, a significant (P < 0.05) decline was seen. These changes were related to increased follicle estradiol production in the follicular phase. In contrast, no changes in the abundance of LH beta mRNA were seen throughout the estrous cycle, but the pituitary content of LH significantly (P < 0.05) decreased after the preovulatory LH surge. These results suggest that there is a close relationship between the abundance of GnRH-R mRNA and translation of the GnRH-R in sheep.
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Sellar RE, Taylor PL, Lamb RF, Zabavnik J, Anderson L, Eidne KA. Functional expression and molecular characterization of the thyrotrophin-releasing hormone receptor from the rat anterior pituitary gland. J Mol Endocrinol 1993; 10:199-206. [PMID: 8387312 DOI: 10.1677/jme.0.0100199] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
We have isolated the TRH receptor (TRH-R) from a rat anterior pituitary cDNA library, determined its sequence and examined its functional characteristics. Expression studies were carried out in Xenopus oocytes and in COS-7 cells. Microinjection of sense RNA transcripts into Xenopus oocytes showed electrophysiological responses of between 800 and 1000 nA under voltage-clamp conditions. COS-7 cells were transiently transfected with the cDNA clone under the control of a cytomegalovirus promoter and inositol phosphate (IP) measurements carried out. In TRH-R transfected cells, TRH (100 nM) produced an approximately twofold increase in total IP production. In-situ hybridization in the rat anterior pituitary revealed a heterogeneous distribution of label, a characteristic pattern of TRH-R expression. The rat 3.3 kb insert coded for a protein of 411 amino acids compared with 393 for the mouse protein. Over its length, the rat TRH-R protein showed considerable homology with that of the mouse, except for a deletion of 232 bp in the 3'-coding region. This deletion did not appear to affect the functional characteristics of the receptor, as shown by electrophysiological studies with Xenopus oocytes and by transfection of the cDNA into COS-7 cells. The sequence given for the 3'-untranslated region is 1.5 kb longer than that reported for the mouse receptor, and extends to the poly(A) tail.
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Lin JC, Taylor PL, Rangel R. Ferromagnetic phase transition in random Potts spin chains. PHYSICAL REVIEW. E, STATISTICAL PHYSICS, PLASMAS, FLUIDS, AND RELATED INTERDISCIPLINARY TOPICS 1993; 47:981-985. [PMID: 9960095 DOI: 10.1103/physreve.47.981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Eidne KA, Sellar RE, Couper G, Anderson L, Taylor PL. Molecular cloning and characterisation of the rat pituitary gonadotropin-releasing hormone (GnRH) receptor. Mol Cell Endocrinol 1992; 90:R5-9. [PMID: 1338727 DOI: 10.1016/0303-7207(92)90116-n] [Citation(s) in RCA: 93] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
We have isolated the gonadotropin-releasing hormone receptor (GnRH-R) from a rat anterior pituitary cDNA library, determined its sequence and demonstrated receptor function. The 2.2 kb rat GnRH-R clone encodes a protein of 327 amino acids. A 1.3 kb clone encoding the mouse GnRH-R has previously been described (Tsutsumi et al., 1992). Although both the mouse and rat protein share significant homology with molecules belonging to the family of G protein-coupled receptors, they have certain unusual features, an example being the complete absence of a COOH terminal tail. The 3'-untranslated region reported missing in the mouse is present in the rat cDNA, where an extended 1 kb of 3'-untranslated region extending to the poly-A tail is shown. At the amino acid level, the rat GnRH-R shows considerable homology with that of the mouse. Electrophysiological studies with Xenopus oocytes and transfection of the cDNA into COS-1 cells, have shown that the 2.2 kb cDNA clone encodes a functional receptor.
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Eidne KA, Zabavnik J, Peters T, Yoshida S, Anderson L, Taylor PL. Cloning, sequencing and tissue distribution of a candidate G protein-coupled receptor from rat pituitary gland. FEBS Lett 1991; 292:243-8. [PMID: 1840531 DOI: 10.1016/0014-5793(91)80876-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A new member of the family of G protein-coupled receptors has been isolated from a rat pituitary cDNA library by the polymerase chain reaction (PCR) using degenerate oligonucleotide primers. The corresponding protein sequence shows seven transmembrane domains and contains conserved regions of homology characteristic of the G protein-coupled class of receptors. The novel receptor mRNA is expressed in the brain, pituitary gland and testis, and has been localized by in situ hybridization in discrete regions of the brain. Expression of the receptor mRNA in Xenopus oocytes and in transfected mammalian cells has not yet permitted identification of the corresponding ligand for this receptor.
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Xu BC, Taylor PL. Theory of the solid-nematic transition in thermotropic main-chain liquid-crystalline polymers. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1991; 44:R821-R824. [PMID: 9906104 DOI: 10.1103/physreva.44.r821] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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