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Documentation

The Bio3D package for structural bioinformatics consists of sets of functions for:

  • input/output,
  • sequence analysis,
  • structure analysis,
  • simulation analysis,
  • normal mode analysis,
  • correlation network analysis,
  • format conversion and data manipulation, and
  • graphics and visualization..

Major functions are listed below with links to further documentation that includes example code and results.

Note that you can also get help on any particular function by using the command ?function or help(function) (e.g. help(read.pdb)) and directly execute the example code for a given function with the command example(function) from within R itself.

We also distribute a number of extended Bio3D vignettes that provide worked examples of using Bio3D to perform a particular type of analysis. Currently available vignettes include:

There is also extensive on-line documentation with worked examples (and their output) for all functions and a package manual (in PDF format) that is a concatenation of each functions documentation (without example output).

Note that for information on Bio3D development status or to report a bug, please refer to: https://bitbucket.org/Grantlab/bio3d

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Version

Install

install.packages('bio3d')

Monthly Downloads

1,824

Version

2.4-4

License

GPL (>= 2)

Maintainer

Last Published

October 26th, 2022

Functions in bio3d (2.4-4)

aa2mass

Amino Acid Residues to Mass Converter
aanma

All Atom Normal Mode Analysis
aanma.pdbs

Ensemble Normal Mode Analysis with All-Atom ENM
aa123

Convert Between 1-letter and 3-letter Aminoacid Codes
angle.xyz

Calculate the Angle Between Three Atoms
aa.table

Table of Relevant Amino Acids
aa2index

Convert an Aminoacid Sequence to AAIndex Values
aa.index

AAindex: Amino Acid Index Database
aln2html

Create a HTML Page For a Given Alignment
as.fasta

Alignment to FASTA object
atom2ele

Atom Names/Types to Atomic Symbols Converter
basename.pdb

Manipulate PDB File Names
atom.select

Atom Selection from PDB and PRMTOP Structure Objects
bhattacharyya

Bhattacharyya Coefficient
binding.site

Binding Site Residues
atom.index

Atom Names/Types
as.select

Convert Atomic Indices to a Select Object
atom2xyz

Convert Between Atom and xyz Indices
atom2mass

Atom Names/Types to Mass Converter
as.pdb

Convert to PDB format
bio3d-package

Biological Structure Analysis
bounds.sse

Obtain A SSE Object From An SSE Sequence Vector
cat.pdb

Concatenate Multiple PDB Objects
bwr.colors

Color Palettes
clean.pdb

Inspect And Clean Up A PDB Object
blast.pdb

NCBI BLAST Sequence Search and Summary Plot of Hit Statistics
check.utility

Check on Missing Utility Programs
chain.pdb

Find Possible PDB Chain Breaks
bounds

Bounds of a Numeric Vector
biounit

Biological Units Construction
cna

Protein Dynamic Correlation Network Construction and Community Analysis.
cnapath

Suboptimal Path Analysis for Correlation Networks
conserv

Score Residue Conservation At Each Position in an Alignment
community.aln

Align communities from two or more networks
com

Center of Mass
cmap

Contact Map
combine.select

Combine Atom Selections From PDB Structure
community.tree

Reconstruction of the Girvan-Newman Community Tree for a CNA Class Object.
convert.pdb

Renumber and Convert Between Various PDB formats
consensus

Sequence Consensus for an Alignment
dccm.enma

Cross-Correlation for Ensemble NMA (eNMA)
covsoverlap

Covariance Overlap
dccm.nma

Dynamic Cross-Correlation from Normal Modes Analysis
dccm

DCCM: Dynamical Cross-Correlation Matrix
core.cmap

Identification of Contact Map Core Positions
cov.nma

Calculate Covariance Matrix from Normal Modes
dccm.xyz

Dynamical Cross-Correlation Matrix from Cartesian Coordinates
core.find

Identification of Invariant Core Positions
dccm.gnm

Dynamic Cross-Correlation from Gaussian Network Model
elements

Periodic Table of the Elements
diag.ind

Diagonal Indices of a Matrix
deformation.nma

Deformation Analysis
dccm.pca

Dynamical Cross-Correlation Matrix from Principal Component Analysis
entropy

Shannon Entropy Score
difference.vector

Difference Vector
dist.xyz

Calculate the Distances Between the Rows of Two Matrices
filter.cmap

Contact Map Consensus Filtering
dm

Distance Matrix Analysis
example.data

Bio3d Example Data
get.seq

Download FASTA Sequence Files
get.pdb

Download PDB Coordinate Files
gap.inspect

Alignment Gap Summary
geostas

GeoStaS Domain Finder
filter.dccm

Filter for Cross-correlation Matrices (Cij)
fit.xyz

Coordinate Superposition
filter.identity

Percent Identity Filter
filter.rmsd

RMSD Filter
dssp

Secondary Structure Analysis with DSSP or STRIDE
fluct.nma

NMA Fluctuations
is.select

Is an Object of Class ‘select’?
identify.cna

Identify Points in a CNA Protein Structure Network Plot
formula2mass

Chemical Formula to Mass Converter
is.pdb

Is an Object of Class ‘pdb(s)’?
hmmer

HMMER Sequence Search
gnm

Gaussian Network Model
hclustplot

Dendrogram with Clustering Annotation
network.amendment

Amendment of a CNA Network According To A Input Community Membership Vector.
mustang

Structure-based Sequence Alignment with MUSTANG
is.gap

Gap Characters
is.mol2

Is an Object of Class ‘mol2’?
motif.find

Find Sequence Motifs.
inspect.connectivity

Check the Connectivity of Protein Structures
is.xyz

Is an Object of Class ‘xyz’?
inner.prod

Mass-weighted Inner Product
layout.cna

Protein Structure Network Layout
mask

Mask a Subset of Atoms in a DCCM Object.
pca.pdbs

Principal Component Analysis
nma.pdb

Normal Mode Analysis
nma.pdbs

Ensemble Normal Mode Analysis
nma

Normal Mode Analysis
pca.tor

Principal Component Analysis
orient.pdb

Orient a PDB Structure
mktrj

PCA / NMA Atomic Displacement Trajectory
normalize.vector

Mass-Weighted Normalized Vector
pdbseq

Extract The Aminoacid Sequence From A PDB Object
pairwise

Pair Indices
overlap

Overlap analysis
pdb2sse

Obtain An SSE Sequence Vector From A PDB Object
pca.array

Principal Component Analysis of an array of matrices
pdbs2sse

SSE annotation for a PDBs Object
lbio3d

List all Functions in the bio3d Package
load.enmff

ENM Force Field Loader
pdbaln

Sequence Alignment of PDB Files
pca

Principal Component Analysis
pdb.annotate

Get Customizable Annotations From PDB Or PFAM Databases
pca.xyz

Principal Component Analysis
pdbs2pdb

PDBs to PDB Converter
pdbfit

PDB File Coordinate Superposition
plot.fasta

Plot a Multiple Sequence Alignment
plot.enma

Plot eNMA Results
pdb2aln

Align a PDB structure to an existing alignment
plot.cna

Protein Structure Network Plots in 2D and 3D.
plot.bio3d

Plots with marginal SSE annotation
pdb2aln.ind

Mapping from alignment positions to PDB atomic indices
plot.core

Plot Core Fitting Progress
plot.dmat

Plot Distance Matrix
plot.dccm

DCCM Plot
plot.cmap

Plot Contact Matrix
pfam

Download Pfam FASTA Sequence Alignment
pdbsplit

Split a PDB File Into Separate Files, One For Each Chain.
plot.fluct

Plot Fluctuations
plot.hmmer

Plot a Summary of HMMER Hit Statistics.
print.core

Printing Core Positions and Returning Indices
plot.pca.loadings

Plot Residue Loadings along PC1 to PC3
plot.nma

Plot NMA Results
plot.matrix.loadings

Plot Residue-Residue Matrix Loadings
print.cna

Summarize and Print Features of a cna Network Graph
plot.rmsip

Plot RMSIP Results
plot.pca

Plot PCA Results
plot.geostas

Plot Geostas Results
read.cif

Read mmCIF File
read.crd.charmm

Read CRD File
read.crd.amber

Read AMBER Coordinate files
read.crd

Read Coordinate Data from Amber or Charmm
prune.cna

Prune A cna Network Object
pymol

Biomolecular Visualization with PyMOL
project.pca

Project Data onto Principal Components
print.fasta

Printing Sequence Alignments
read.fasta

Read FASTA formated Sequences
read.fasta.pdb

Read Aligned Structure Data
read.all

Read Aligned Structure Data
print.xyz

Printing XYZ coordinates
rgyr

Radius of Gyration
read.prmtop

Read AMBER Parameter/Topology files
read.pdb

Read PDB File
read.ncdf

Read AMBER Binary netCDF files
read.dcd

Read CHARMM/X-PLOR/NAMD Binary DCD files
read.pdcBD

Read PQR output from pdcBD File
read.pqr

Read PQR File
read.mol2

Read MOL2 File
sdENM

Index for the sdENM ff
seq2aln

Add a Sequence to an Existing Alignmnet
seqbind

Combine Sequences by Rows Without Recycling
seqidentity

Percent Identity
rmsf

Atomic RMS Fluctuations
rmsip

Root Mean Square Inner Product
rmsd

Root Mean Square Deviation
rle2

Run Length Encoding with Indices
setup.ncore

Setup for Running Bio3D Functions using Multiple CPU Cores
trim

Trim a PDB Object To A Subset of Atoms.
trim.pdbs

Filter or Trim a PDBs Object
sip

Square Inner Product
torsion.xyz

Calculate Torsion/Dihedral Angles
store.atom

Store all-atom data from a PDB object
trim.mol2

Trim a MOL2 Object To A Subset of Atoms.
vec2resno

Replicate Per-residue Vector Values
seqaln.pair

Sequence Alignment of Identical Protein Sequences
seqaln

Sequence Alignment with MUSCLE
var.xyz

Pairwise Distance Variance in Cartesian Coordinates
unbound

Sequence Generation from a Bounds Vector
uniprot

Fetch UniProt Entry Data.
sse.bridges

SSE Backbone Hydrogen Bonding
trim.xyz

Trim a XYZ Object of Cartesian Coordinates.
vmd

View CNA Protein Structure Network Community Output in VMD
write.pdb

Write PDB Format Coordinate File
write.ncdf

Write AMBER Binary netCDF files
write.mol2

Write MOL2 Format Coordinate File
write.crd

Write CRD File
torsion.pdb

Calculate Mainchain and Sidechain Torsion/Dihedral Angles
struct.aln

Structure Alignment Of Two PDB Files
write.fasta

Write FASTA Formated Sequences
vmd_colors

VMD Color Palette
wrap.tor

Wrap Torsion Angle Data
write.pqr

Write PQR Format Coordinate File
write.pir

Write PIR Formated Sequences