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Genomics02:02

Genomics

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Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
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Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes02:16

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The present-day mitochondrial and chloroplast genomes have retained some of the characteristics of their ancestral prokaryotes and also have acquired new attributes during their evolution within eukaryotic cells. Like prokaryotic genomes, mitochondrial and chloroplast genomes neither bind with histone-like proteins nor show complex packaging into chromosome-like structures, as observed in eukaryotes. Unlike mitotic cell divisions observed in eukaryotic cells, mitochondria and chloroplasts...
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Synthetic Biology02:55

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Synthetic biology is an interdisciplinary science that involves using principles from disciplines such as engineering, molecular biology, cell biology, and systems biology. It involves remodeling existing organisms from nature or constructing completely new synthetic organisms for applications such as protein or enzyme production, bioremediation, value-added macromolecule production, and the addition of desirable traits to crops, to name a few.
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Multi-species Conserved Sequences02:51

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Next-generation sequencing technologies have created large genomic databases of a variety of animals and plants. Ever since the human genome project was completed, scientists studied the genome of primates, mammals, and other phylogenetically distant living beings. Such large-scale  studies have provided new insights into the evolutionary relationship between organisms.
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Applications of Molecular Taxonomy01:20

Applications of Molecular Taxonomy

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Molecular taxonomy has revolutionized the understanding and classification of bacteria, providing precise insights into their diversity, evolutionary relationships, and ecological roles. By utilizing molecular techniques such as DNA sequencing and fingerprinting, researchers have made significant strides in various fields related to bacterial studies.Resolving Taxonomic AmbiguitiesMolecular taxonomy has been instrumental in distinguishing closely related bacterial species initially thought to...
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sCIN:単細胞マルチオミックスのデータ統合のための対比的な学習フレームワーク

Amir Ebrahimi1, Alireza Fotuhi Siahpirani2, Hesam Montazeri2

  • 1Department of Biotechnology, College of Science, University of Tehran, Ghods 37, Tehran, 1417763135, Iran.

Briefings in bioinformatics
|August 26, 2025
PubMed
まとめ
この要約は機械生成です。

単細胞のオミクスデータを統合する 新しい方法 sCIN を開発しました このフレームワークは,異なるデータ型を効果的に組み合わせて,技術的なバイアスを克服し,細胞の異質性と規制メカニズムを明らかにします.

キーワード:
CITE-seq についてSHARE-seq について対照的学習マルチモダルの学習ニューラルネットワーク単細胞マルチオミック

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Multiplexed Analysis of Retinal Gene Expression and Chromatin Accessibility Using scRNA-Seq and scATAC-Seq
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科学分野:

  • シングル・セル・マルチオミクス・インテグレーション
  • 計算生物学
  • ゲノミクスとトランスクリプトミクス

背景:

  • scRNA-seq と scATAC-seq のような単細胞オミクス技術は,細胞異質性の研究を進めている.
  • マルチオミクスのデータを統合することは,分布上の不一致と特徴的な空間のために困難です.

研究 の 目的:

  • 単細胞対照性インテグレーション (sCIN) という新しい枠組みを提示し,多様な単細胞オミクスを統合する.
  • 技術的なバイアスを克服し,異なるオミックスのデータタイプを共有された隠れた空間に組み合わせることを可能にします.

主な方法:

  • モダリティ特有のエンコーダーとコントラスティブ・ラーニングを利用するフレームワークであるsCINを開発した.
  • 訓練とテストのセット間のデータリークを厳格に防止します.
  • ペアリングされた (scRNA-ATAC,10X PBMC,CITE-seq) とペアリングされていない (遺伝子発現,クロマチンのアクセシビリティ) データセットで評価された.

主要な成果:

  • sCINは,複数の統合とクラスタリングのメトリックに関して,最先端のモデル (scGLUE,scBridge,sciCAN,Con-AAE,Harmony,MOFA+) に比べて優れたパフォーマンスを示しました.
  • シミュレートされたペアリングされていないデータを含むペアリングされたデータセットとペアリングされていないデータセットの両方で効果的な統合が示されました.
  • このフレームワークは,マルチモダルの統合中に,生物学的意味を成功裏に保ちました.

結論:

  • sCINは,単細胞のオミクス方式を統合するための堅牢なソリューションを提供します.
  • フレームワークは技術的なバイアスを効果的に対処し,ペアリングされたデータとペアリングされていないデータの両方で生物学的洞察を保存します.
  • sCINは,信頼性の高いデータ統合を通じて,細胞の異質性と規制メカニズムの理解を進めています.