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Structural Biology

๐Ÿ“ Subject Overview: Structural Biology & Biophysics

Structural Biology is the molecular science focused on resolving the atomic-resolution three-dimensional architecture of proteins, nucleic acids, and macromolecular assemblies, elucidating how atomic geometry dictates biochemical function.

Curriculum & Syllabus Roadmap

Complete structural syllabus encompassing thermodynamics, diffraction physics, cryo-EM single particle analysis, and biophysical instrumentation.

Unit I • Thermodynamics

Protein Folding & Ramachandran Plot Analysis

Torsion dihedral angles (phi/psi), Ramachandran allowed conformational zones, hydrophobic collapse, and folding funnels.

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Unit II • Crystallography

X-Ray Crystallography & Diffraction Physics

Protein crystallization phase diagrams, Bragg’s law, the phase problem, isomorphous replacement, and electron density refinement.

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Unit III • Cryo-EM

Cryo-Electron Microscopy (Cryo-EM)

Liquid ethane vitrification, phase-contrast TEM imaging, direct electron detectors, 2D classification, and 3D map reconstruction.

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Unit IV • NMR

NMR Spectroscopy of Biomolecules

Nuclear spin Zeeman splitting, chemical shifts, 2D HSQC and NOESY distance constraints (<5 ร…), and dynamic ensembles.

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Unit V • Mass Spectrometry

Mass Spectrometry & Proteomics

MALDI vs ESI soft ionization, TOF and Orbitrap analyzers, tandem MS/MS peptide sequencing, and collision-induced dissociation.

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