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Related Concept Videos

Translation01:31

Translation

154.8K
Lesson: Translation
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of...
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Translation01:31

Translation

17.4K
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
Proteins are...
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Glucose Transporters01:27

Glucose Transporters

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Glucose transporters facilitate the transport of glucose across the cell membrane. In addition to glucose, some glucose transporters can also aid the movement of other hexoses such as fructose, mannose, and galactose.
Facilitated diffusion-glucose transporters (GLUTs) are encoded by the solute-linked carrier (SLC) family 2, subfamily A gene family, or SLC2A. The 14 GLUT protein members are distributed into three classes:
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Alternative RNA Splicing02:18

Alternative RNA Splicing

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Alternative RNA splicing is the regulated splicing of exons and introns to produce different mature mRNAs from a single pre-mRNA. Unlike in constitutive splicing where a single gene produces a single type of mRNA, alternative splicing allows an organism to produce multiple proteins from a single gene and plays an important role in protein diversity.
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
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Disorders of Erythrocytes01:27

Disorders of Erythrocytes

2.0K
Disorders of erythrocytes, or red blood cells (RBCs), include a range of conditions affecting their number, shape, or function.
Erythrocyte disorders can be broadly categorized into two main types: anemic and polycythemic conditions.
A low oxygen-carrying capacity of the blood due to the loss, lower production, or destruction of erythrocytes is termed anemia. Hemorrhagic anemia, for example, occurs when bleeding from an external wound or internal ulcer reduces erythrocyte counts.
On the other...
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The Ras Gene02:38

The Ras Gene

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The Ras-gene-encoded proteins are regulators of signaling pathways controlling cell proliferation, differentiation, or cell survival. The Ras-gene family in humans constitutes three primary members—the HRas, NRas, and KRas. These genes code for four functionally distinct yet closely related proteins—the HRas, NRas, KRas4A, and KRas4B. The involvement of mutant Ras genes in human cancer was first discovered in 1982 and is among the most common causes of human tumorigenesis.
Ras is a...
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Related Experiment Video

Updated: Jan 5, 2026

A Reverse Genetic Approach to Test Functional Redundancy During Embryogenesis
06:59

A Reverse Genetic Approach to Test Functional Redundancy During Embryogenesis

Published on: August 11, 2010

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GATA1 mutations in red cell disorders.

Te Ling1, John D Crispino1

  • 1Division of Hematology/Oncology, Northwestern University, Chicago, Illinois.

IUBMB Life
|October 26, 2019
PubMed
Summary

GATA1 mutations disrupt red blood cell development, leading to rare anemias. Understanding these genetic alterations is key to studying erythropoiesis and related disorders.

Area of Science:

  • Hematology
  • Molecular Biology
  • Genetics

Background:

  • GATA1 is crucial for red blood cell gene expression and maturation.
  • GATA1 deficiency causes erythroid progenitor arrest and apoptosis.
  • Animal models and human red cell disorders provide insights into GATA1 function.

Purpose of the Study:

  • To discuss the role of GATA1 in erythropoiesis.
  • To emphasize GATA1 mutations in human red cell disorders.

Main Methods:

  • Review of existing literature on GATA1 function.
  • Analysis of GATA1 mutations in Diamond-Blackfan anemia and other red cell disorders.

Main Results:

  • GATA1 mutations affect the amino-terminal zinc finger (N-ZF) and amino-terminus.
Keywords:
GATA1anemiaerythropoiesis

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  • Mutations can alter DNA-binding activity, primarily mediated by the carboxyl-terminal zinc finger (C-ZF).

    • Conclusions:

    • GATA1 is essential for erythropoiesis.
    • Mutations in GATA1 are linked to rare human red cell disorders, impacting its regulatory functions.