相关实验视频

Updated: May 7, 2026

Necropsy-based Wild Fish Health Assessment

Necropsy-based Wild Fish Health Assessment

Published on: September 11, 2018

斑马鱼ferroportin1的定位克隆确定了一个保存的脊椎动物铁出口商

A Donovan¹, A Brownlie, Y Zhou

¹Department of Medicine, Children's Hospital and Dana-Farber Cancer Institute, Boston, Massachusetts 02115, USA.

|February 29, 2000

概括

研究人员确定铁丁1是关键的铁出口蛋白质. 这一发现揭示了斑马鱼,人类和哺乳动物的铁运输,可能解释了缺铁和超负荷障碍.

科学领域:

分子生物学分子生物学
遗传学是一个遗传学.
身体生理学身体生理学

背景情况:

铁的吸收和利用对于预防缺铁和超负荷障碍至关重要.
哺乳动物的铁运输机制涉及通过DMT1和一个假设的底侧输出者进行十二指管吸收.
胚胎铁是通过胎盘运输获得的.

研究的目的:

为了鉴定斑马鱼突变体中导致低染色贫血的基因.
为了描述已识别的铁出口蛋白的功能.

主要方法:

位置克隆被用来识别斑马鱼中负责的基因.
在斑马鱼黄囊中分析了基因表达模式.
通过在Xenopus卵细胞中表达蛋白质来进行功能性研究.

主要成果:

负责斑马鱼缺色性贫血的基因被确定为ferroportin1.1.
斑马鱼ferroportin1是一种多重跨膜域蛋白质,在黄囊中表达.
斑马鱼铁波1促进铁从黄黄储存到循环的运输,并充当铁出口商.

结论:

铁1是难以捉摸的铁出口蛋白质的候选者.
人类费罗波丁1局部存在胎盘基底表面,这表明它在母体-胚胎铁运输中发挥了作用.
哺乳动物Ferroportin1在十二指肠底侧表面的表达表明它在铁出口到循环中的作用,可能涉及到铁平衡障碍.

更多相关视频

Raising the Mexican Tetra Astyanax mexicanus for Analysis of Post-larval Phenotypes and Whole-mount Immunohistochemistry

Raising the Mexican Tetra Astyanax mexicanus for Analysis of Post-larval Phenotypes and Whole-mount Immunohistochemistry

Published on: December 28, 2018

Cortisol Extraction from Sturgeon Fin and Jawbone Matrices

Cortisol Extraction from Sturgeon Fin and Jawbone Matrices

Published on: September 10, 2019

相关概念视频

The Early Endosome: Endocytosis of Transferrin

The Early Endosome: Endocytosis of Transferrin

Essential proteins such as insulin or low-density lipoprotein (LDL) and micronutrients such as iron enter a eukaryotic cell through receptor-mediated endocytosis. Subsequently, the early endosomes fuse with the vesicles containing such receptor-ligand complexes and play a vital role in sorting the incoming ligands and receptors. While the ligands are either degraded inside the vesicle or released into the cytosol, their receptors are returned to the plasma membrane for further rounds of...