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Core BioPerl 1.x code
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This is the README file for the BioPerl central distribution. o Getting Started Please see the the INSTALL or INSTALL.WIN documents for installation instructions. o About BioPerl BioPerl is a package of public domain Perl tools for computational molecular biology. Our website, http://bioperl.org/, provides an online resource of modules, scripts, and web links for developers of Perl-based software for life science research. o Contact info BioPerl mailing list: bioperl-l@bioperl.org There's quite a variety of tools available in BioPerl, and more are added all the time. If the tool you're looking for isn't described in the documentation please write us, it could be undocumented or in process. Project website : http://bioperl.org/ Bug reports : https://redmine.open-bio.org/projects/bioperl/ Please send us bugs, in particular about documentation which you think is unclear or problems in installation. We are also very interested in functions which don't work the way you think they do! o The directory structure The BioPerl directory structure is organized as follows: - Bio/ - BioPerl modules - doc/ - Documentation utilities - examples/ - Scripts demonstrating the many uses of BioPerl - ide/ - files for developing BioPerl using an IDE - maintenance/ - BioPerl housekeeping scripts - models/ - DIA drawing program generated OO UML for BioPerl classes (these are quite out-of-date) - scripts/ - Useful production-quality scripts with POD documentation - t/ - Perl built-in tests, tests are divided into subdirectories based on the specific classes being tested - t/data/ - Data files used for the tests, provides good example data o Documentation For documentation on BioPerl see the HOWTO documents and tutorials online at http://bioperl.org. Useful documentation in the form of example code can also be found in the examples/ and scripts/ directories. The current collection includes scripts that run BLAST, index flat files, parse PDB structure files, make primers, retrieve ESTs based on tissue, align protein to nucleotide sequence, run GENSCAN on multiple sequences, and much more! See bioscripts.pod for a complete listing. Individual *.pm modules have their own embedded POD documentation as well. A complete set of hyperlinked POD, or module, documentation is available at http://www.bioperl.org/. Remember that 'perldoc' is your friend. You can use it to read any file containing POD formatted documentation without needing any type of translator (e.g. 'perldoc Bio::SeqIO'). If you used the Build.PL installation, and depending on your platform, you may have documentation installed as man pages, which can be accessed in the usual way. o Releases BioPerl releases are always available from the website at http://www.bioperl.org/DIST or in CPAN. The latest code can be found at https://github.com/bioperl. BioPerl formerly used a numbering scheme to indicate stable release series vs. development release series. A release number is a three digit number like 1.2.0. The first digit indicates the major release - the idea being that all the API calls in a major release are reasonably consistent. The second number is the release series. This is probably the most important number. From the 1.0 release until the 1.6 release, even numbers (1.0, 1.2 etc) indicated stable releases. Stable releases were well tested and recommended for most uses. Odd numbers (1.1, 1.3 etc) were development releases which one would only use if one were interested in the latest and greatest features. The final number (e.g. 1.2.0, 1.2.1) is the bug fix release. The higher the number the more bug fixes has been incorporated. In theory you can upgrade from one bug fix release to the next with no changes to your own code (for production cases, obviously check things out carefully before you switch over). The 1.6 release will be the last release series to utilize the alternating 'stable'/'developer' convention. Starting immediately after the 1.6 branch, we will start splitting BioPerl into several smaller easier-to-manage distributions, including a developer distribution for cutting-edge (in development) code, untested modules, and alternative implementations. o Caveats and warnings When you run the tests ("./Build test") some tests may issue warnings messages or even fail. Sometimes this is because we didn't have anyone to test the test system on the combination of your operating system, version of perl, and associated libraries and other modules. Because BioPerl depends on several outside libraries we may not be able to test every single combination so if there are warnings you may find that the package is still perfectly useful. If you install the bioperl-run system and run tests when you don't have the program installed you'll get messages like 'program XXX not found, skipping tests'. That's okay, BioPerl is doing what it is supposed to do. If you wanted to run the program you'd need to install it first. Not all scripts in the examples/ directory are correct and up-to-date. We need volunteers to help maintain these so if you find they do not submit a bug report to https://redmine.open-bio.org/projects/bioperl/ and consider helping out in their maintenance. If you are confused about what modules are appropriate when you try and solve a particular issue in bioinformatics we urge you to look at HOWTO documents first. o A simple module summary Here is a quick summary of many of the useful modules and how the toolkit is laid out: All modules are in the Bio/ namespace, - Perl is for newbies and gives a functional interface to the main parts of the package - Seq is for Sequences (protein and DNA). o Bio::PrimarySeq is a plain sequence (sequence data + identifiers) o Bio::Seq is a PrimarySeq plus it has a Bio::Annotation::Collection and Bio::SeqFeatureI objects attached (via Bio::FeatureHolderI). o Bio::Seq::RichSeq is all of the above plus it has slots for extra information specific to GenBank/EMBL/SwissProt files. o Bio::Seq::LargeSeq is for sequences which are too big for fitting into memory. - SeqIO is for reading and writing Sequences, it is a front end module for separate driver modules supporting the different sequence formats - SeqFeature - start/stop/strand annotations of sequences o Bio::SeqFeature::Generic is basic catchall o Bio::SeqFeature::Similarity a similarity sequence feature o Bio::SeqFeature::FeaturePair a sequence feature which is pairwise such as query/hit pairs - SearchIO is for reading and writing pairwise alignment reports like BLAST or FASTA - Search is where the alignment objects are defined o Bio::Search::Result::GenericResult is the result object (a blast query is a Result object) o Bio::Search::Hit::GenericHit is the Hit object (a query will have 0 -> many hits in a database) o Bio::Search::HSP::GenericHSP is the High-scoring Segment Pair object defining the alignment(s) of the query and hit. - SimpleAlign is for multiple sequence alignments - AlignIO is for reading and writing multiple sequence alignment formats - Assembly provides the start of an infrastructure for assemblies and Assembly::IO IO converters for them - DB is the namespace for all the database query objects o Bio::DB::GenBank/GenPept are two modules which query NCBI entrez for sequences o Bio::DB::SwissProt/EMBL query various EMBL and SwissProt repositories for a sequences o Bio::DB::GFF is Lincoln Stein's fast, lightweight feature and sequence database which is the backend to his GBrowse system (see www.gmod.org) o Bio::DB::Flat is a fast implementation of the OBDA flat-file indexing system (cross-language and cross-platform supported by O|B|F projects see http://obda.open-bio.org). o Bio::DB::BioFetch/DBFetch for OBDA, Web (HTTP) access to remote databases. o Bio::DB::InMemoryCache/FileCache (fast local caching of sequences from remote dbs to speed up your access). o Bio::DB::Registry interface to the OBDA specification for remote data sources o Bio::DB::Biblio for access to remote bibliographic databases. o Bio::DB::EUtilities is the initial set of modules used for generic queried using NCBI's eUtils. - Annotation collection of annotation objects (comments, DBlinks, References, and misc key/value pairs) - Coordinate is a system for mapping between different coordinate systems such as DNA to protein or between assemblies - Index is for locally indexed flatfiles with BerkeleyDB - Tools contains many miscellaneous parsers and function for different bioinformatics needs o Gene prediction parser (Genscan, MZEF, Grail, Genemark) o Annotation format (GFF) o Enumerate codon tables and valid sequences symbols (CodonTable, IUPAC) o Phylogenetic program parsing (PAML, Molphy, Phylip) - Map genetic and physical map representations - Structure - parse and represent protein structure data - TreeIO is for reading and writing Tree formats - Tree is the namespace for all the associated Tree objects o Bio::Tree::Tree is the basic tree object o Bio::Tree::Node are the nodes which make up the tree o Bio::Tree::Statistics is for computing statistics for a tree o Bio::Tree::TreeFunctionsI is where specific tree functions are implemented (like is_monophyletic and lca) - Bio::Biblio is where bibliographic data and database access objects are kept - Variation represent sequences with mutations and variations applied so one can compare and represent wild-type and mutation versions of a sequence. - Root, basic objects for the internals of BioPerl o Upgrading from an older version If you have a previously installed version of BioPerl on your system some of these notes may help you. Some modules have been removed because they have been superceded by new development efforts. They are documented in the DEPRECATED file that is included in the release. In addition some methods, or the Application Programming Interface (API), have changed or been removed. You may find that scripts which worked with BioPerl 1.4 may give you warnings or may not work at all (although we have tried very hard to minimize this!). Send an email to the list and we'll be happy to give you pointers.
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