AMBER User Manual
Introduction.
What to read next.
Information flow in Amber.
Preparatory programs.
Energy programs.
Analysis programs.
Installation of Amber 6
Installing by hand.
Installing on Win95/98/NT
Testing.
Memory Requirements.
The database directory.
An Amber Tutorial.
Example 1. Minimization of BPTI in vacuum.
Example 2. A more complicated protein example.
Make database file for the modified residues.
Do some editing of the PDB file.
Set up the system without solvent.
Run a simple minimization.
Run simulated annealing optimization.
Setup the system with counterions in a box of water.
Use LEaP to set up the prmtop file
Run solvated molecular dynamics simulation.
Example 3: NMR refinement in explicit water solvent
Example 4: Using a truncated octahedral box
LEaP
Preface
Introduction
Concepts
Commands
Variables
Objects
NUMBERs
STRINGs
LISTs
PARMSETs (Parameter Sets)
ATOMs
RESIDUEs
UNITs
Complex objects and accessing subobjects
Starting LEaP
Verbosity
Log File
Using LEaP
teLEaP
xLEaP
Universe Editor
Universe Editor Menu Bar
Unit Editor
Unit Editor Menu Bar
Unit Editor Manipulation Buttons
Unit Editor Elements Buttons
Unit Editor Viewing Window
Atom Properties Editor
Atom Properties Menu Bar
Atom Properties Status Window
Atom Properties Table Window
Parmset Editor
Parmset Table Editor Menu Bar
Parmset Table Editor Status Window
Parmset Table Window
Using LEaP With AMBER
PARMSETs
UNIT Libraries
Amino Acid Residues
Nucleic Acid Residues
Miscellaneous Residues
Building a Molecule For Molecular Mechanics
Loading Objects
Constructing the Molecule
Z-matrix Input
PDB File Input
AMBER PREP Input
UNIT Editor Input
Generating Molecular Mechanics Input Files
Commands
add
addAtomTypes
addIons
addIons
addPath
addPdbAtomMap
addPdbResMap
alias
alignAxes
bond
bondByDistance
center
charge
check
clearPdbAtomMap
clearPdbResMap
clearVariables
combine
copy
createAtom
createParmset
createResidue
createUnit
crossLink
debugOff
debugOn
debugStatus
deleteBond
deleteOffLibEntry
deleteRestraint
desc
deSelect
displayPdbAtomMap
displayPdbResMap
edit
groupSelectedAtoms
help
impose
list
listOff
loadAmberParams
loadAmberPrep
loadOff
loadPdb
loadPdbUsingSeq
logFile
matchVariables
measureGeom
quit
remove
restrainAngle
restrainBond
restrainTorsion
saveAmberParm
saveAmberParmPol
saveAmberParmPert
saveAmberParmPolPert
saveOff
savePdb
scaleCharges
select
sequence
set
setBox
solvateBox
solvateCap
solvateDontClip
solvateOct
solvateShell
source
transform
translate
verbosity
zMatrix
Examples
A Simple Steroid: Cholesterol
An Ion-Molecule Complex: 18-Crown-6 and Potassium Cation
Free Energy Perturbation: Guanine To Adenine
Creating Polynucleotides: B DNA
A Protein/Ligand Complex: trp Repressor
Sander
Introduction.
History and credits
Notes for users of earlier versions of Amber
File usage.
Example input files
Overview of the information in the input file
SECTION ONE: General minimization and dynamics parameters.
General flags describing the calculation.
Nature and format of the input.
Nature and format of the output.
Potential function.
Polarizable potentials.
Frozen or restrained atoms.
Energy minimization.
Molecular dynamics.
Temperature regulation.
Pressure regulation
SHAKE bond length constraints.
Special water treatment.
Water cap.
NMR refinement options.
Particle Mesh Ewald.
SECTION TWO: Weight change information.
SECTION THREE: File redirection commands.
SECTION FOUR: Distance, angle and torsional restraints.
SECTION FIVE: NOESY volume restraints.
SECTION SIX: Chemical shift restraints.
SECTION SEVEN: Direct dipolar couling restraints
Overview of NMR refinement using SANDER.
Preparing restraint files for Sander
Running NMR refinements in sander
Preparing distance restraints: makeDIST_RST.
Preparing torsion angle restraints: makeANG_RST
Chirality restraints: makeCHIR_RST
NOESY volume restraints: makeVOL_RST
Direct dipolar coupling restraints: makeDIP_RST
Getting summaries of NMR violations
Modifying the force field
Time-averaged restraints.
Multiple copies refinement using LES
Some sample input files
LES
Background.
Preparing to use LES with AMBER
Using the ADDLES program
More information on the ADDLES commands and options
Using the new topology/coordinate files with SANDER
Case studies: Examples of application of LES
Enhanced sampling for individual functional groups: Glucose.
Enhanced sampling for a small region: Application of LES to a nucleic acid loop
Improving conformational sampling in a small peptide
Unresolved issues with LES in AMBER
References for LES and other multiple-copy methods
CMC/MD
Introduction to CMC/MD
Input files
OUTPUTS
Gibbs
Introduction
Free Energy Techniques Available in GIBBS
Understanding the Output
Defining States and Obtaining Appropriate Starting Coordinates
Suggested introductory references
Assigning files
Control parameters
Choices Affecting Free Energy Calculations
I. What method should be used to calculate the free energy?
II. Enthalpies and entropies
III. Mixing rules for vanishing atoms
IV. Using Dynamically Modified Windows
V. Potential of Mean Force (PMF) calculations
VI. Error estimates and convergence
VII. Changing parameters versus dual topologies
References
Sander_classic
Introduction.
SECTION ONE: General minimization and dynamics parameters.
General flags describing the calculation.
Nature and format of the input.
Nature and format of the output.
Potential function.
The soft repulsion option.
Polarizable potentials.
Frozen or restrained atoms.
Energy minimization.
Molecular dynamics.
Temperature regulation.
PEACS temperature algorithm
Pressure regulation
SHAKE bond length constraints.
Special water treatment.
Water cap.
NMR refinement options.
Particle Mesh Ewald.
SECTION TWO: Weight change information.
SECTION THREE: File redirection commands.
"SECTION
SECTION FIVE: NOESY volume restraints.
SECTION SIX: Chemical shift restraints.
ptraj
ptraj command prerequisites
ptraj input/output commands
ptraj commands that modify the state
ptraj
action
commands
rdparm
"rdparm
Carnal
Contents
Introduction
Input
Output
Analin introduction
Summary of Analin Sections
A Simple Analin Example
Analin Syntax Specification
Examples
References
MM-PBSA
General input variables
Input variables for alanine/glycine scanning
Sample input files
The statistics program
Auxiliary programs used by MM-PBSA
The MSMS program
The GB program
The pdb_for_GB program
The Delphi program
Profec
Introduction
makeGrid
makeGrid input format
makeDiffGrid
Field
Data formats
Examples
Nmode
Introduction
References
General description
Files
Input description
quasih
Nmanal
Lmanal
RESP
Miscellaneous
Nucgen
ambpdb
protonate
intense
spectrum
fantasian
rdis
curvop
Anal
Introduction
Files
"Input
Appendices
Appendix A: Namelist Input Syntax
Appendix B: GROUP Specification
Appendix C: Parameter Development
Appendix D: Charge fitting philosophy
Further Notes on Charge Derivation for the 1994 Force Field
Amber file formats
parameter file format
restart file format
trajectory (coordinates or velocity) file format
Notes
[Next]
Updated on January 5, 2000. Comments to case@scripps.edu