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Peptide Bonds02:43

Peptide Bonds

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A peptide bond covalently attaches amino acids through a dehydration reaction. One amino acid's carboxyl group and another amino acid's amino group combine, releasing a water molecule. The resulting bond is the peptide bond. The products that such linkages form are peptides. As more amino acids join this growing chain, the resulting chain is a polypeptide. Each polypeptide has a free amino group at one end. This end has the N-terminal, or the amino-terminal, and the other end has a free...
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Protein Organization01:24

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Proteins are polymers of amino acid residues. They are versatile and responsible for different cellular functions, including DNA replication, molecular transport, catalysis, and structural support. Proteins have a hierarchical structure comprising at least three levels of organization: primary, secondary, and tertiary structure. Some large proteins have a quaternary structure where individual protein subunits are linked together.
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Hydrogen Bonds01:04

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A hydrogen bond is formed when a weakly positive hydrogen atom already bonded to one electronegative atom (for example, the oxygen in the water molecule) is attracted to another electronegative atom from another polar molecule, such as water (H2O), hydrogen fluoride (HF), or ammonia (NH3). The huge electronegativity difference between the H atom (2.1) and the atom to which it is bonded (4.0 for an F atom, 3.5 for an O atom, or 3.0 for an N atom), combined with the very small size of an H atom...
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Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules. Proteins may be structural, regulatory, contractile, or protective. They may serve in transport, storage, or membranes; or they may be toxins or enzymes. Their structures, like their functions, vary greatly. They are all, however, amino acid polymers arranged in a linear sequence.
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Noncovalent Attractions in Biomolecules02:35

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Noncovalent attractions are associations within and between molecules that influence the shape and structural stability of complexes. These interactions differ from covalent bonding in that they do not involve sharing of electrons.
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Formation of Ordered Biomolecular Structures by the Self-assembly of Short Peptides
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Peptide hydrogen-bonded organic frameworks.

Thangavel Vijayakanth1, Sneha Dasgupta2, Pragati Ganatra3

  • 1Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv-6997801, Israel. vijayakantht@mail.tau.ac.il.

Chemical Society Reviews
|March 7, 2024
PubMed
Summary
This summary is machine-generated.

Peptide-based porous frameworks (P-HPFs) offer tunable, biocompatible materials for gas storage and chiral applications. This review explores advancements in P-HPFs using short peptides, folded peptides, and foldamers, highlighting their potential and challenges.

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Area of Science:

  • Materials Science
  • Supramolecular Chemistry
  • Biomaterials Engineering

Background:

  • Hydrogen-bonded porous frameworks (HPFs) are versatile crystalline materials with broad applications.
  • Conventional HPFs face challenges in creating chiral assemblies and biocompatible materials.
  • Peptide-based hydrogen-bonded porous frameworks (P-HPFs) emerge as promising alternatives due to inherent chirality and biocompatibility.

Purpose of the Study:

  • To review recent advancements in peptide-based porous frameworks (P-HPFs).
  • To highlight the utility of P-HPFs in gas storage, chiral recognition, separation, and medical applications.
  • To discuss design challenges and future research directions in the field of P-HPFs.

Main Methods:

  • Review of literature focusing on P-HPFs constructed from ultra-short peptides (≤3 amino acids), folded peptides, and foldamers.
  • Analysis of adaptable porous topologies in flexible, ultra-short peptide-based P-HPFs.
  • Examination of design strategies for P-HPFs incorporating longer, folded peptides.

Main Results:

  • Ultra-short peptide-based P-HPFs demonstrate adaptable porous structures capable of accommodating guest molecules and capturing greenhouse gases.
  • P-HPFs exhibit significant potential for chiral recognition and separation due to their intrinsic chirality.
  • Folded peptides and foldamers present unique opportunities for novel P-HPF architectures and functionalities.

Conclusions:

  • Peptide-based porous frameworks (P-HPFs) offer a tunable and biocompatible platform for advanced materials.
  • The development of P-HPFs using various peptide building blocks shows great promise for diverse applications, including environmental remediation and medicine.
  • Further research into design strategies and understanding structure-property relationships will unlock the full potential of P-HPFs.