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Related Concept Videos

RNA Splicing01:32

RNA Splicing

Splicing is the process by which eukaryotic RNA is edited before its translation into protein. The RNA strand transcribed from eukaryotic DNA is called the primary transcript. The primary transcripts that become mRNAs are called precursor messenger RNAs (pre-mRNAs). Eukaryotic pre-mRNA contains alternating sequences of exons and introns. Exons are nucleotide sequences that code for proteins, whereas introns are the non-coding regions. In RNA splicing, introns are removed and exons are bonded...
RNA Splicing01:32

RNA Splicing

Splicing is the process by which eukaryotic RNA is edited before its translation into protein. The RNA strand transcribed from eukaryotic DNA is called the primary transcript. The primary transcripts that become mRNAs are called precursor messenger RNAs (pre-mRNAs). Eukaryotic pre-mRNA contains alternating sequences of exons and introns. Exons are nucleotide sequences that code for proteins, whereas introns are the non-coding regions. In RNA splicing, introns are removed and exons are bonded...
Pre-mRNA Processing: RNA Splicing01:32

Pre-mRNA Processing: RNA Splicing

Splicing is the process by which eukaryotic RNA is edited before its translation into protein. The RNA strand transcribed from eukaryotic DNA is called the primary transcript. The primary transcripts that become mRNAs are called precursor messenger RNAs (pre-mRNAs). Eukaryotic pre-mRNA contains alternating sequences of exons and introns. Exons are nucleotide sequences that code for proteins, whereas introns are the non-coding regions. In RNA splicing, introns are removed and exons are bonded...
Amebiasis01:28

Amebiasis

Entamoeba histolytica, a protozoan parasite, is responsible for intestinal and extraintestinal amebiasis. Though a significant proportion of infections remain asymptomatic, approximately 50 million individuals annually are estimated to present with clinical disease, resulting in up to 100,000 deaths globally. The disease burden is disproportionately high in regions with lower socioeconomic status, such as parts of India, Africa, Mexico, and Latin America.Etiology and TransmissionThe infective...
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Fungal Phylum Microsporidia

Microsporidia are a group of obligate intracellular fungi that were initially classified as protists but were later reclassified based on phylogenetic, molecular, and structural evidence linking them to the Chytridiomycota. These unicellular, non-motile organisms are highly specialized parasites that infect a wide range of animal hosts, including humans. They have evolved extensive genomic and metabolic reductions, making them highly dependent on their hosts for survival.Morphology and Genomic...
Spindle Assembly02:50

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Spindle assembly occurs through three, often coexisting, pathways – the centrosome-mediated pathway, the chromatin-mediated pathway, and the microtubule-mediated pathway – collectively contributing to form a robust spindle apparatus.
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Related Experiment Video

Updated: Jun 24, 2026

Utilization of Grafix for the Detection of Transient Interactors of Saccharomyces cerevisiae Spliceosome Subcomplexes
05:44

Utilization of Grafix for the Detection of Transient Interactors of Saccharomyces cerevisiae Spliceosome Subcomplexes

Published on: November 9, 2020

Entamoeba histolytica spliceosome structural components.

Israel Canela-Pérez1, Odila Saucedo-Cárdenas2, Rodolfo Gamaliel Avila-Bonilla3

  • 1Departamento de Bioquímica, CINVESTAV-México, Av. IPN 2508 colonia San Pedro Zacatenco, GAM, CDMX 07360, México.

Microbiology (Reading, England)
|June 22, 2026
PubMed
Summary
This summary is machine-generated.

Eukaryotic gene discontinuity involves spliceosomes removing introns from mRNA. This study infers spliceosome component structures in the protozoan parasite Entamoeba histolytica, advancing molecular biology understanding.

Keywords:
nuclear-cytoplasmic transportsnRNPsspliceosomal complexesstructural modelling

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Area of Science:

  • Molecular Biology
  • Genetics
  • Parasitology

Background:

  • Eukaryotic gene structure features introns, non-coding sequences removed during RNA processing.
  • Small nuclear RNAs (snRNAs) and proteins assemble into spliceosomes, the machinery responsible for intron removal.
  • Spliceosome function involves sequential steps: assembly, activation, catalysis, and disassembly.

Purpose of the Study:

  • To investigate the structure of spliceosome components in the protozoan parasite Entamoeba histolytica.
  • To provide structural insights into a key molecular complex in a medically relevant parasite.
  • To complement existing structural data primarily from Saccharomyces cerevisiae.

Main Methods:

  • Biochemical characterization of spliceosome components.
  • Structural analysis of key molecular players.
  • Comparative structural inference based on known spliceosome structures.

Main Results:

  • Contribution to the structural understanding of specific spliceosome components in Entamoeba histolytica.
  • Identification of structural features relevant to spliceosome function in this parasite.
  • Inferred structural models for components of the Entamoeba histolytica spliceosome.

Conclusions:

  • The study provides novel structural insights into the Entamoeba histolytica spliceosome.
  • Understanding spliceosome structure in parasites can inform therapeutic strategies.
  • This work enhances the structural knowledge base of eukaryotic spliceosomes.