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Core - Cell Biology

    Chapter 5

    Protein Structure

    5.1 : What are Proteins?01:28

    5.1 : What are Proteins?

    Proteins are polymers of amino acids linked together by peptide bonds. Proteins and polypeptides are interchangeably used to refer to long chains of amino ...

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    5.2 : Protein Organization01:24

    5.2 : Protein Organization

    Proteins are polymers of amino acid residues. They are versatile and responsible for different cellular functions, including DNA replication, molecular ...

    6.2K views
    5.3 : Protein Folding01:25

    5.3 : Protein Folding

    Proteins are chains of amino acids linked together by peptide bonds. Upon synthesis, a protein folds into a three-dimensional conformation, critical to ...

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    5.4 : Protein Families02:47

    5.4 : Protein Families

    Protein families are groups of homologous proteins; that is, they have similarities in amino acid sequences and three-dimensional structures. Protein ...

    3.1K views
    5.5 : Conservation of Protein Domains02:26

    5.5 : Conservation of Protein Domains

    Protein domains are small structurally independent units that are part of a single amino acid chain.  Although these domains are often structurally ...

    3.1K views
    5.6 : Globular and Fibrous Proteins02:21

    5.6 : Globular and Fibrous Proteins

    Many proteins can be classified into two distinct subtypes - globular or fibrous. These two types differ in their shapes and solubilities. Globular ...

    4.0K views
    5.7 : Intrinsically Disordered Proteins02:18

    5.7 : Intrinsically Disordered Proteins

    Intrinsically disordered proteins are a group of proteins that do not fold into specific three-dimensional structures. Their structural flexibility allows ...

    2.3K views
    5.8 : Protein Complex Assembly02:41

    5.8 : Protein Complex Assembly

    Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types.  Most protein complexes ...

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    5.9 : Conjugated Proteins02:50

    5.9 : Conjugated Proteins

    Simple proteins and protein complexes contain only amino acids. In contrast, many other proteins, called conjugated proteins, covalently bond with ...

    2.6K views
    5.10 : Amyloid Fibrils03:03

    5.10 : Amyloid Fibrils

    Amyloid fibrils are aggregates of misfolded proteins.  Under most circumstances, misfolded proteins are either refolded by chaperone proteins or ...

    5.1K views
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