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相关概念视频

Ligand Binding Sites02:40

Ligand Binding Sites

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Proteins are dynamic macromolecules that carry out a wide variety of essential processes; however, the activities of most proteins depend on their interactions with other molecules or ions, known as ligands.
Protein-ligand interactions are quite specific; even though numerous potential ligands surround a cellular protein at any given time, only a particular ligand can bind to that protein. Moreover, a ligand binds only to a dedicated area on the surface of the protein, known as the...
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Glucagon-like Receptor Agonists01:24

Glucagon-like Receptor Agonists

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Incretins include glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP), which stimulate insulin secretion post-meals. In type 2 diabetes, GIP's efficacy is reduced, making GLP-1 a viable drug target. GIP originates from preproGIP.
GLP-1, when administered in high doses intravenously, triggers insulin secretion, inhibits glucagon release, slows gastric emptying, reduces food intake, and restores normal insulin secretion. However, its rapid inactivation by...
291
G Protein-coupled Receptors01:15

G Protein-coupled Receptors

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G Protein-Coupled Receptors or GPCRs are membrane-bound receptors that transiently associate with heterotrimeric G proteins and induce an appropriate response to sensory stimuli such as light, odors, hormones, cytokines, or neurotransmitters.
GPCRs are also called heptahelical, 7TM, or serpentine receptors, and consist of seven (H1-H7) transmembrane alpha-helices that span the bilayer to form a cylindrical core. The transmembrane helices are connected by three extracellular loops and three...
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Hormonal Regulation01:40

Hormonal Regulation

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Hormones regulate a significant portion of digestion through activation of the neuroendocrine system. The neuroendocrine system of digestion contains many different hormones all with multiple functions that are both, directly and indirectly, involved in digestion.
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Ligand Binding and Linkage00:49

Ligand Binding and Linkage

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Allosteric proteins have more than one ligand binding site; the binding of a ligand to any of these sites influences the binding of ligands to the other sites. When a protein is allosteric, its binding sites are called coupled or linked.  In the case of enzymes, the site that binds to the substrate is known as the active site and the other site is known as the regulatory site. When a ligand binds to the regulatory site, this leads to conformational changes in the protein that can influence...
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GPCRs Regulate Adenylyl Cylase Activity01:09

GPCRs Regulate Adenylyl Cylase Activity

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Some GPCRs transmit signals through adenylyl cyclase (AC), a transmembrane enzyme. AC helps synthesize second messenger cyclic adenosine monophosphate (cAMP). AC catalyzes cyclization reaction and converts ATP to cAMP by releasing a pyrophosphate. The pyrophosphate is further hydrolyzed to phosphate by the enzyme pyrophosphatase, which drives cAMP synthesis to completion. However, cAMP is rapidly degraded to 5′ AMP by the enzymes phosphodiesterase (PDE), preventing overstimulation of...
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相关实验视频

Updated: May 25, 2025

In Vitro Imaging and Quantification of the Drug Targeting Efficiency of Fluorescently Labeled GnRH Analogues
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一个模块化可定制的合体-合体 (LC) 系统,针对格林-转移酶.

Amber L Ford1, Caine W Taft1, Andrea M Sprague-Getsy1

  • 1Department of Chemistry, Syracuse University, Syracuse, NY 13244, USA.

Biomolecules
|February 26, 2025
PubMed
概括

格林O-转移酶 (GOAT) 对于格林的成熟至关重要,并与前列腺癌有关. 一种新联系统针对具有纳米分子亲和力的GOAT,使其能够为潜在的诊断和疗法进行可定制的货物附着.

关键词:
在 GHSRR 找格林激素 (ghrelin) 是一种激素.格林蛋白O-酸转移酶的作用膜酶是一种膜酶.与膜结合的O-转移酶.类模仿抑制剂的抑制剂.后翻译修改后的修改.蛋白质的乙化是蛋白质的

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科学领域:

  • 生物化学 生物化学
  • 分子生物学分子生物学
  • 在瘤学瘤学.

背景情况:

  • 格雷林是一种调节食欲,新陈代谢和认知的类激素.
  • 格林O-酸转移酶 (GOAT) 催化格林酸,对其生物活性至关重要.
  • GOAT在前列腺癌 (PCa) 中过度表达,并检测到患者的生物流体中,这表明它在PCa进展中的作用以及作为生物标志物的潜力.

研究的目的:

  • 开发一种多功能联结体结合体 (LC) 系统,用于准GOAT.
  • 为了使各种货物可定制地附着在GOAT准带上.
  • 为了评估开发的连接体系统对GOAT的亲和力.

主要方法:

  • 设计和合成一种灵感来自抗体-结合体的系统,用于配体-结合体合成.
  • 作为核心配体,利用了一种具有已知的GOAT纳米分子亲和力的ghrelin模拟性.
  • 证明了各种货物的附着在连接体系统上.

主要成果:

  • 成功开发了一种可定制的配体-结合体合成合成方案.
  • 连接体系统表现出对各种附着货物的耐受性.
  • 结合体系统保持了对GOAT的纳米分子亲和力,尽管有货物结合.

结论:

  • 开发的连接体系统提供了一个灵活的平台,用于创建GOAT向的结合体.
  • 该系统有可能开发PCa和其他GOAT相关疾病的新诊断和治疗策略.
  • 可定制性允许在分子成像或向GOAT的药物输送中定制应用.