Introduction to Macromolecular Refinement

1/8/01


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Table of Contents

Introduction to Macromolecular Refinement

Introduction

Why Refinement?

PPT Slide

Principle Choices in Refinement

Maximum Likelihood

The Least-squares Function

PPT Slide

Different Classes of Observations

Major Limitation of this Equation

Energy Minimization

Methods of Minimization

The Minimization Continuum

Full Matrix Minimization

Full Matrix Minimization (cont.)

PPT Slide

Adding History to a Cycle

Minimization Method Summary

When the Off-diagonal Elements are Ignored...

When the Diagonal Elements are Ignored as well...

Things to Watch in Refinement

A Common Mistake

In Conclusion...

Author: Dale Tronrud

Email: dale@uoxray.uoregon.edu

Home Page: http://www.uoxray.uoregon.edu/dale/