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Guanine Nucleotides
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D006150 |
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Guanosine
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D006151 |
[A purine nucleoside that has guanine linked by its N9 nitrogen to the C1 carbon of ribose. It is a component of ribonucleic acid and its nucleotides play important roles in metabolism. (From Dorland, 28th ed)
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Guanosine 5'-O-(3-Thiotriphosphate)
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D016244 |
[Guanosine 5'-(trihydrogen diphosphate), monoanhydride with phosphorothioic acid. A stable GTP analog which enjoys a variety of physiological actions such as stimulation of guanine nucleotide-binding proteins, phosphoinositide hydrolysis, cyclic AMP accumulation, and activation of specific proto-oncogenes.
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Guanosine Diphosphate
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D006153 |
[A guanine nucleotide containing two phosphate groups esterified to the sugar moiety.
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Guanosine Diphosphate Fucose
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D006154 |
[A nucleoside diphosphate sugar formed from GDPmannose, which provides fucose for lipopolysaccharides of bacterial cell walls, and for blood group substances and other glycoproteins.
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Guanosine Diphosphate Mannose
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D006155 |
[A nucleoside diphosphate sugar which can be converted to the deoxy sugar GDPfucose, which provides fucose for lipopolysaccharides of bacterial cell walls. Also acts as mannose donor for glycolipid synthesis.
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Guanosine Diphosphate Sugars
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D006156 |
[Esters formed between the aldehydic carbon of sugars and the terminal phosphate of guanosine diphosphate.
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Guanosine Monophosphate
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D006157 |
[A guanine nucleotide containing one phosphate group esterified to the sugar moiety and found widely in nature.
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Guanosine Pentaphosphate
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D006158 |
[Guanosine 5'-triphosphate 2'(3')-diphosphate. A guanine nucleotide containing five phosphate groups. Three phosphate groups are esterified to the sugar moiety in the 5' position and the other two in the 2' or 3' position. This nucleotide serves as a messenger to turn off the synthesis of ribosomal RNA when amino acids are not available for protein synthesis.
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Guanosine Tetraphosphate
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D006159 |
[Guanosine 5'-diphosphate 2'(3')-diphosphate. A guanine nucleotide containing four phosphate groups. Two phosphate groups are esterified to the sugar moiety in the 5' position and the other two in the 2' or 3' position. This nucleotide serves as a messenger to turn off the synthesis of ribosomal RNA when amino acids are not available for protein synthesis. Synonym: magic spot I.
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Guanosine Triphosphate
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D006160 |
[Guanosine 5'-(tetrahydrogen triphosphate). A guanine nucleotide containing three phosphate groups esterified to the sugar moiety.
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Guanylate Cyclase
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D006162 |
[An enzyme that catalyzes the conversion of GTP to 3',5'-cyclic GMP and pyrophosphate. It also acts on ITP and dGTP. (From Enzyme Nomenclature, 1992) EC 4.6.1.2.
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Guanylate Cyclase-Activating Proteins
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D051604 |
[Neuronal calcium sensor proteins that regulate the activation of membrane-bound GUANYLATE CYCLASE. They are primarily expressed in the RETINA where they play an important role in PHOTOTRANSDUCTION.
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Guanylate Kinases
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D051528 |
[Catalyzes the ATP-dependent PHOSPHORYLATION of GMP to generate GDP and ADP.
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Guanylthiourea
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D006164 |
[May protect against hypoxic damage; proposed for treatment of shock due to trauma or blood loss; also stimulates paretic gastrointestinal system.
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Guanylyl Cyclase C Agonists
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D000074268 |
[Compunds that bind to and activate GUANYLYL CYCLASE-C RECEPTORS.
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Guanylyl Imidodiphosphate
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D006165 |
[A non-hydrolyzable analog of GTP, in which the oxygen atom bridging the beta to the gamma phosphate is replaced by a nitrogen atom. It binds tightly to G-protein in the presence of Mg2+. The nucleotide is a potent stimulator of ADENYLYL CYCLASES.
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Guatemala
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D006166 |
[A country in CENTRAL AMERICA bordering the North Pacific Ocean, between EL SALVADOR and MEXICO, and bordering the Gulf of Honduras (Caribbean Sea) between HONDURAS and BELIZE.
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Guatteria
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D031043 |
[A plant genus of the family ANNONACEAE. Members contain asarone, isoguattouregidine (an isoquinoline alkaloid), norlaureline, puterine, noraporphine alkaloids.
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Gubernaculum
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D000071477 |
[An embryonic structure that helps guide proper descent of gonads into their final positions. It attaches the caudal end of the fetal GONADS to the developing SCROTUM in male and the labium majorum in female. It gives rise to the caudal ligaments of the gonad: the scrotal ligament in male and the uterine round and proper ovarian ligaments in female. It includes morphofunctional equivalent structures in non-mammals.
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