Search Results - "Janovick, J A"
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Participation of the endoplasmic reticulum protein chaperone thio-oxidoreductase in gonadotropin-releasing hormone receptor expression at the plasma membrane
Published in Brazilian journal of medical and biological research (01-02-2009)“…Chaperone members of the protein disulfide isomerase family can catalyze the thiol-disulfide exchange reaction with pairs of cysteines. There are 14 protein…”
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Rescue of hypogonadotropic hypogonadism-causing and manufactured GnRH receptor mutants by a specific protein-folding template: Misrouted proteins as a novel disease etiology and therapeutic target
Published in The journal of clinical endocrinology and metabolism (01-07-2002)“…In the present study, we demonstrate pharmacological rescue (assessed by ligand binding and restoration of receptor coupling to effector) of five naturally…”
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A cholera toxin-sensitive guanyl nucleotide binding protein mediates the movement of pituitary luteinizing hormone into a releasable pool: loss of this event is associated with the onset of homologous desensitization to gonadotropin-releasing hormone
Published in Endocrinology (Philadelphia) (01-05-1993)“…Cholera toxin (CTX; 5 micrograms/ml), but not pertussis toxin (100 ng/ml), when preincubated with pituitary cells for 18 h, enhances the percentage of cellular…”
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Mutations at the Consensus Phosphorylation Sites in the Third Intracellular Loop of the Rat Gonadotropin-Releasing Hormone Receptor: Effects on Receptor Ligand Binding and Signal Transduction
Published in Biology of reproduction (01-12-1998)“…In this study, site-directed mutagenesis of potential phosphorylation sites (Thr 238 , Ser 253 , and Thr 264 ) for protein kinase C and C-terminal portion (Ala…”
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Specific identification and subcellular localization of three calmodulin-binding proteins in the rat gonadotrope: spectrin, caldesmon, and calcineurin
Published in Biology of reproduction (01-01-1991)“…In an effort to characterize the second messenger system for LH release, we have previously identified five calmodulin-binding proteins in rat gonadotropes of…”
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Gonadotropin-releasing hormone-stimulated intracellular Ca2+ fluctuations and luteinizing hormone release can be uncoupled from inositol phosphate production
Published in Endocrinology (Philadelphia) (01-06-1992)“…In order to study the dependence of GnRH-stimulated LH release on inositol phosphate (IP) turnover, this study used an inhibitor of phospholipase C activity,…”
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Addition of catfish gonadotropin-releasing hormone (GnRH) receptor intracellular carboxyl-terminal tail to rat GnRH receptor alters receptor expression and regulation
Published in Molecular endocrinology (Baltimore, Md.) (01-02-1998)“…Mammalian GnRH receptor (GnRHR) is unique among G protein-coupled seven-transmembrane segment receptors due to the absence of an intracellular C-terminal tail…”
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Differential orientation of a GnRH agonist and antagonist in the pituitary GnRH receptor
Published in Endocrinology (Philadelphia) (01-08-1993)“…In the present study we have used a high affinity photoaffinity label (PAL) agonist (pGlu-His-Trp-Ser-125I-iodoTyr-D-Lys(para-N3-Benzoyl)-Leu-Arg-P roNHEt) and…”
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Regulation of G(q/11)alpha by the gonadotropin-releasing hormone receptor
Published in Molecular endocrinology (Baltimore, Md.) (01-06-1997)“…Evidence from use of pertussis and cholera toxins and from NaF suggested the involvement of G proteins in GnRH regulation of gonadotrope function. We have used…”
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Caldesmon: a bifunctional (calmodulin and actin) binding protein which regulates stimulated gonadotropin release
Published in Endocrinology (Philadelphia) (01-07-1991)“…Calmodulin (CaM) serves as an intracellular Ca2+ receptor in the gonadotrope and appears to mediate GnRH-stimulated gonadotropin release. Recently we have…”
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Stable transfection of GH3 cells with rat gonadotropin-releasing hormone receptor complementary deoxyribonucleic acid results in expression of a receptor coupled to cyclic adenosine 3',5'-monophosphate-dependent prolactin release via a G-protein
Published in Endocrinology (Philadelphia) (01-07-1994)“…GH3 cells, which normally release PRL in response to stimulation by TRH, have been stably transfected with rat GnRH receptor complementary DNA (GGH3-1' cells)…”
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Gonadotropin-releasing hormone modulation of protein kinase-C activity in perifused anterior pituitary cell cultures
Published in Endocrinology (Philadelphia) (01-11-1990)“…The ability of GnRH to modulate protein kinase-C (PKC) activity was examined in perifused rat pituitary cell cultures. Under these conditions, LH release and…”
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Molecular cloning and expression of two type one somatostatin receptors in goldfish brain
Published in Endocrinology (Philadelphia) (01-11-1999)“…Somatostatin (SRIF or SS) exerts diverse inhibitory actions through binding to specific receptors. In this study, two SRIF receptor complementary DNAs (cDNAs)…”
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Mechanisms mediating multiple physiological responses to gonadotropin-releasing hormone
Published in Molecular and cellular endocrinology (25-09-1998)“…A central question in endocrinology is how a single ligand interacting with a single receptor can mediate multiple responses. GnRH interaction with receptor…”
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Structure-Activity Relationships of G Protein-Coupled Receptors
Published in Archives of Medical Research (01-11-1999)“…The primary function of cell-surface receptors is to discriminate the specific signaling molecule or ligand from a large array of chemically diverse…”
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Molecular cloning and expression of a type-two somatostatin receptor in goldfish brain and pituitary
Published in Molecular and cellular endocrinology (30-08-2000)“…Somatostatin (SRIF or SS) exerts diverse inhibitory actions through binding to specific receptors. In this study, a SRIF receptor cDNA was cloned and sequenced…”
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A mathematical model quantifying GnRH-induced LH secretion from gonadotropes
Published in American journal of physiology: endocrinology and metabolism (01-02-2000)“…A mathematical model is developed to investigate the rate of release of luteinizing hormone (LH) from pituitary gonadotropes in response to short pulses of…”
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Gonadotropin releasing hormone agonist provokes homologous receptor microaggregation: an early event in seven-transmembrane receptor mediated signaling
Published in Endocrinology (Philadelphia) (01-08-1996)“…Gonadotropin releasing hormone (GnRH) mediates interactions between the neural and the endocrine systems. The GnRH receptor is a member of the ubiquitous…”
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Combined modification of intracellular and extracellular loci on human gonadotropin-releasing hormone receptor provides a mechanism for enhanced expression
Published in Endocrine (01-12-2000)“…The mammalian gonadotropin-releasing hormone (GnRH) receptor (GnRH-R) has been a therapeutic target for human and animal medicine. This receptor is a unique…”
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