### Home Classes Methods

### In Files

- lib/bio/sequence/common.rb
- lib/bio/sequence/compat.rb

### Methods

- #+
- #<<
- #composition
- #concat
- #normalize!
- #randomize
- #seq
- #seq!
- #splice
- #splicing
- #subseq
- #to_fasta
- #to_s
- #to_str
- #total
- #window_search

### Files

- ChangeLog
- KNOWN_ISSUES.rdoc
- LEGAL
- README.rdoc
- README_DEV.rdoc
- RELEASE_NOTES.rdoc
- Changes-1.3.rdoc
- RELEASE_NOTES-1.4.0.rdoc
- RELEASE_NOTES-1.4.1.rdoc
- RELEASE_NOTES-1.4.2.rdoc

### Class/Module Index

Quicksearch

- Bio
- Bio::AAindex
- Bio::AAindex1
- Bio::AAindex2
- Bio::Abif
- Bio::Abif::DirectoryEntry
- Bio::Alignment
- Bio::Alignment::ArrayExtension
- Bio::Alignment::EnumerableExtension
- Bio::Alignment::FactoryTemplate
- Bio::Alignment::FactoryTemplate::FileInFileOut
- Bio::Alignment::FactoryTemplate::FileInFileOutWithTree
- Bio::Alignment::FactoryTemplate::FileInStdoutOut
- Bio::Alignment::FactoryTemplate::Simple
- Bio::Alignment::FactoryTemplate::StdinInFileOut
- Bio::Alignment::FactoryTemplate::WrapInputStdin
- Bio::Alignment::FactoryTemplate::WrapInputTempfile
- Bio::Alignment::FactoryTemplate::WrapOutputStdout
- Bio::Alignment::FactoryTemplate::WrapOutputTempfile
- Bio::Alignment::GAP
- Bio::Alignment::HashExtension
- Bio::Alignment::MultiFastaFormat
- Bio::Alignment::OriginalAlignment
- Bio::Alignment::OriginalPrivate
- Bio::Alignment::Output
- Bio::Alignment::PropertyMethods
- Bio::Alignment::SequenceArray
- Bio::Alignment::SequenceHash
- Bio::Alignment::Site
- Bio::Alignment::SiteMethods
- Bio::AminoAcid
- Bio::AminoAcid::Data
- Bio::Blast
- Bio::Blast::Bl2seq
- Bio::Blast::Bl2seq::Report
- Bio::Blast::Bl2seq::Report::HSP
- Bio::Blast::Bl2seq::Report::Hit
- Bio::Blast::Bl2seq::Report::Iteration
- Bio::Blast::Default
- Bio::Blast::Default::Report
- Bio::Blast::Default::Report::HSP
- Bio::Blast::Default::Report::Hit
- Bio::Blast::Default::Report::Iteration
- Bio::Blast::Default::Report_TBlast
- Bio::Blast::Fastacmd
- Bio::Blast::NCBIOptions
- Bio::Blast::RPSBlast
- Bio::Blast::RPSBlast::RPSBlastSplitter
- Bio::Blast::RPSBlast::Report
- Bio::Blast::RPSBlast::Report::FLATFILE_SPLITTER
- Bio::Blast::RPSBlast::Report::Iteration
- Bio::Blast::Remote
- Bio::Blast::Remote::DDBJ
- Bio::Blast::Remote::DDBJ::Information
- Bio::Blast::Remote::Ddbj
- Bio::Blast::Remote::GenomeNet
- Bio::Blast::Remote::GenomeNet::Information
- Bio::Blast::Remote::Genomenet
- Bio::Blast::Remote::Information
- Bio::Blast::Report
- Bio::Blast::Report::BlastXmlSplitter
- Bio::Blast::Report::FLATFILE_SPLITTER
- Bio::Blast::Report::Hit
- Bio::Blast::Report::Hsp
- Bio::Blast::Report::Iteration
- Bio::Blast::Report_tab
- Bio::Blast::WU
- Bio::Blast::WU::Report
- Bio::Blast::WU::Report::HSP
- Bio::Blast::WU::Report::Hit
- Bio::Blast::WU::Report::Iteration
- Bio::Blast::WU::Report_TBlast
- Bio::Blat
- Bio::Blat::Report
- Bio::Blat::Report::Hit
- Bio::Blat::Report::SegmentPair
- Bio::Blat::Report::SeqDesc
- Bio::ClustalW
- Bio::ClustalW::Report
- Bio::CodonTable
- Bio::ColorScheme
- Bio::Command
- Bio::Command::Tmpdir
- Bio::Command::Tmpdir::Remover
- Bio::ContingencyTable
- Bio::DAS
- Bio::DAS::DNA
- Bio::DAS::DSN
- Bio::DAS::ENTRY_POINT
- Bio::DAS::FEATURE
- Bio::DAS::GFF
- Bio::DAS::GROUP
- Bio::DAS::LINK
- Bio::DAS::SEGMENT
- Bio::DAS::SEQUENCE
- Bio::DAS::TARGET
- Bio::DAS::TYPE
- Bio::DAS::TYPES
- Bio::DB
- Bio::DBGET
- Bio::DDBJ
- Bio::DDBJ::REST
- Bio::DDBJ::REST::Blast
- Bio::DDBJ::REST::ClustalW
- Bio::DDBJ::REST::DDBJ
- Bio::DDBJ::REST::Mafft
- Bio::DDBJ::REST::RequestManager
- Bio::DDBJ::REST::WABItemplate
- Bio::DDBJ::XML
- Bio::DDBJ::XML::Blast
- Bio::DDBJ::XML::ClustalW
- Bio::DDBJ::XML::DDBJ
- Bio::DDBJ::XML::Fasta
- Bio::DDBJ::XML::GetEntry
- Bio::DDBJ::XML::Gib
- Bio::DDBJ::XML::Gtop
- Bio::DDBJ::XML::PML
- Bio::DDBJ::XML::RequestManager
- Bio::DDBJ::XML::RequestManager::REST
- Bio::DDBJ::XML::SRS
- Bio::DDBJ::XML::TxSearch
- Bio::EBI
- Bio::EBI::SOAP
- Bio::EBI::SOAP::Citation
- Bio::EBI::SOAP::ClustalW
- Bio::EBI::SOAP::Dbfetch
- Bio::EBI::SOAP::Emboss
- Bio::EBI::SOAP::Fasta
- Bio::EBI::SOAP::InterProScan
- Bio::EBI::SOAP::MPsrch
- Bio::EBI::SOAP::MSD
- Bio::EBI::SOAP::Muscle
- Bio::EBI::SOAP::Ontology
- Bio::EBI::SOAP::ScanPS
- Bio::EBI::SOAP::TCoffee
- Bio::EBI::SOAP::WUBlast
- Bio::EMBL
- Bio::EMBLDB
- Bio::EMBLDB::Common
- Bio::EMBOSS
- Bio::Ensembl
- Bio::Ensembl::Base
- Bio::Ensembl::Human
- Bio::Ensembl::Mouse
- Bio::FANTOM
- Bio::FANTOM::MaXML
- Bio::FANTOM::MaXML::Annotation
- Bio::FANTOM::MaXML::Annotation::DataSrc
- Bio::FANTOM::MaXML::Annotations
- Bio::FANTOM::MaXML::Cluster
- Bio::FANTOM::MaXML::Sequence
- Bio::FANTOM::MaXML::Sequences
- Bio::Fasta
- Bio::Fasta::Report
- Bio::Fasta::Report::FLATFILE_SPLITTER
- Bio::Fasta::Report::FastaFormat10Splitter
- Bio::Fasta::Report::Hit
- Bio::Fasta::Report::Hit::Query
- Bio::Fasta::Report::Hit::Target
- Bio::Fasta::Report::Program
- Bio::FastaDefline
- Bio::FastaFormat
- Bio::FastaNumericFormat
- Bio::Fastq
- Bio::Fastq::Error
- Bio::Fastq::Error::Diff_ids
- Bio::Fastq::Error::Long_qual
- Bio::Fastq::Error::No_atmark
- Bio::Fastq::Error::No_ids
- Bio::Fastq::Error::No_qual
- Bio::Fastq::Error::No_seq
- Bio::Fastq::Error::Qual_char
- Bio::Fastq::Error::Qual_range
- Bio::Fastq::Error::Seq_char
- Bio::Fastq::Error::Short_qual
- Bio::Fastq::Error::Skipped_unformatted_lines
- Bio::Fastq::FormatData
- Bio::Fastq::FormatData::FASTQ_ILLUMINA
- Bio::Fastq::FormatData::FASTQ_SANGER
- Bio::Fastq::FormatData::FASTQ_SOLEXA
- Bio::Feature
- Bio::Feature::Qualifier
- Bio::Features
- Bio::Fetch
- Bio::FlatFile
- Bio::FlatFile::AutoDetect
- Bio::FlatFile::AutoDetect::RuleDebug
- Bio::FlatFile::AutoDetect::RuleProc
- Bio::FlatFile::AutoDetect::RuleRegexp
- Bio::FlatFile::AutoDetect::RuleRegexp2
- Bio::FlatFile::AutoDetect::RuleSpecial
- Bio::FlatFile::AutoDetect::RuleTemplate
- Bio::FlatFile::AutoDetect::RulesArray
- Bio::FlatFile::BufferedInputStream
- Bio::FlatFile::Splitter
- Bio::FlatFile::Splitter::Default
- Bio::FlatFile::Splitter::LineOriented
- Bio::FlatFile::Splitter::Template
- Bio::FlatFile::UnknownDataFormatError
- Bio::FlatFileIndex
- Bio::FlatFileIndex::BDB_1
- Bio::FlatFileIndex::BDB_1::BDBMappingFile
- Bio::FlatFileIndex::BDB_1::PrimaryNameSpace
- Bio::FlatFileIndex::BDB_1::SecondaryNameSpace
- Bio::FlatFileIndex::BDBdefault
- Bio::FlatFileIndex::BDBwrapper
- Bio::FlatFileIndex::DEBUG
- Bio::FlatFileIndex::DataBank
- Bio::FlatFileIndex::FileID
- Bio::FlatFileIndex::FileIDs
- Bio::FlatFileIndex::Flat_1
- Bio::FlatFileIndex::Flat_1::FlatMappingFile
- Bio::FlatFileIndex::Flat_1::PrimaryNameSpace
- Bio::FlatFileIndex::Flat_1::Record
- Bio::FlatFileIndex::Flat_1::SecondaryNameSpace
- Bio::FlatFileIndex::Indexer
- Bio::FlatFileIndex::Indexer::NameSpace
- Bio::FlatFileIndex::Indexer::NameSpaces
- Bio::FlatFileIndex::Indexer::Parser
- Bio::FlatFileIndex::Indexer::Parser::BlastDefaultParser
- Bio::FlatFileIndex::Indexer::Parser::EMBLParser
- Bio::FlatFileIndex::Indexer::Parser::FastaFormatParser
- Bio::FlatFileIndex::Indexer::Parser::GenBankParser
- Bio::FlatFileIndex::Indexer::Parser::GenPeptParser
- Bio::FlatFileIndex::Indexer::Parser::MaXMLClusterParser
- Bio::FlatFileIndex::Indexer::Parser::MaXMLSequenceParser
- Bio::FlatFileIndex::Indexer::Parser::PDBChemicalComponentParser
- Bio::FlatFileIndex::Indexer::Parser::SPTRParser
- Bio::FlatFileIndex::Indexer::Parser::TemplateParser
- Bio::FlatFileIndex::NameSpaces
- Bio::FlatFileIndex::Results
- Bio::FlatFileIndex::Template
- Bio::FlatFileIndex::Template::NameSpace
- Bio::GCG
- Bio::GCG::Msf
- Bio::GCG::Seq
- Bio::GFF
- Bio::GFF::GFF2
- Bio::GFF::GFF2::Escape
- Bio::GFF::GFF2::MetaData
- Bio::GFF::GFF2::Record
- Bio::GFF::GFF2::Record::Value
- Bio::GFF::GFF3
- Bio::GFF::GFF3::Escape
- Bio::GFF::GFF3::Record
- Bio::GFF::GFF3::Record::Gap
- Bio::GFF::GFF3::Record::Gap::Code
- Bio::GFF::GFF3::Record::Target
- Bio::GFF::GFF3::RecordBoundary
- Bio::GFF::GFF3::SequenceRegion
- Bio::GFF::Record
- Bio::GO
- Bio::GO::External2go
- Bio::GO::GeneAssociation
- Bio::GO::Ontology
- Bio::GenBank
- Bio::GenBank::Locus
- Bio::GenPept
- Bio::GenPept::Locus
- Bio::Genscan
- Bio::Genscan::Report
- Bio::Genscan::Report::Exon
- Bio::Genscan::Report::Gene
- Bio::HGC
- Bio::HGC::HiGet
- Bio::HMMER
- Bio::HMMER::Report
- Bio::HMMER::Report::Hit
- Bio::HMMER::Report::Hsp
- Bio::Hinv
- Bio::Hinv::Acc2hit
- Bio::Hinv::Common
- Bio::Hinv::Hit2acc
- Bio::Hinv::HitCnt
- Bio::Hinv::HitDefinition
- Bio::Hinv::HitPubmedId
- Bio::Hinv::HitXML
- Bio::Hinv::Hix2hit
- Bio::Hinv::HixCnt
- Bio::Hinv::HixRepresent
- Bio::Hinv::HixXML
- Bio::Hinv::IdSearch
- Bio::Hinv::KeywordSearch
- Bio::Iprscan
- Bio::Iprscan::Report
- Bio::Iprscan::Report::Match
- Bio::KEGG
- Bio::KEGG::API
- Bio::KEGG::BRITE
- Bio::KEGG::COMPOUND
- Bio::KEGG::Common
- Bio::KEGG::Common::DblinksAsHash
- Bio::KEGG::Common::GenesAsHash
- Bio::KEGG::Common::ModulesAsHash
- Bio::KEGG::Common::OrthologsAsHash
- Bio::KEGG::Common::PathwaysAsHash
- Bio::KEGG::Common::References
- Bio::KEGG::Common::StringsAsHash
- Bio::KEGG::DRUG
- Bio::KEGG::ENZYME
- Bio::KEGG::EXPRESSION
- Bio::KEGG::GENES
- Bio::KEGG::GENOME
- Bio::KEGG::GLYCAN
- Bio::KEGG::KGML
- Bio::KEGG::KGML::Entry
- Bio::KEGG::KGML::Graphics
- Bio::KEGG::KGML::Product
- Bio::KEGG::KGML::Reaction
- Bio::KEGG::KGML::Relation
- Bio::KEGG::KGML::Substrate
- Bio::KEGG::KGML::SubstrateProduct
- Bio::KEGG::Keggtab
- Bio::KEGG::Keggtab::DB
- Bio::KEGG::MODULE
- Bio::KEGG::ORTHOLOGY
- Bio::KEGG::PATHWAY
- Bio::KEGG::REACTION
- Bio::KEGG::Taxonomy
- Bio::KEGGDB
- Bio::LITDB
- Bio::Lasergene
- Bio::Location
- Bio::Locations
- Bio::MAFFT
- Bio::MAFFT::Report
- Bio::MEDLINE
- Bio::Map
- Bio::Map::ActsLikeMap
- Bio::Map::ActsLikeMarker
- Bio::Map::Mapping
- Bio::Map::Marker
- Bio::Map::SimpleMap
- Bio::Meme
- Bio::Meme::Mast
- Bio::Meme::Mast::Report
- Bio::Meme::Motif
- Bio::Muscle
- Bio::NBRF
- Bio::NCBI
- Bio::NCBI::REST
- Bio::NCBI::REST::EFetch
- Bio::NCBI::REST::EFetch::Methods
- Bio::NCBI::REST::ESearch
- Bio::NCBI::REST::ESearch::Methods
- Bio::NCBI::SOAP
- Bio::NCBI::SOAP::EFetch
- Bio::NCBI::SOAP::EFetchLite
- Bio::NCBI::SOAP::EUtils
- Bio::NCBI::SOAP::EUtilsLite
- Bio::NCBIDB
- Bio::NCBIDB::Common
- Bio::Newick
- Bio::Newick::Edge
- Bio::Newick::Node
- Bio::Newick::ParseError
- Bio::Nexus
- Bio::Nexus::CharactersBlock
- Bio::Nexus::DataBlock
- Bio::Nexus::DistancesBlock
- Bio::Nexus::GenericBlock
- Bio::Nexus::NexusMatrix
- Bio::Nexus::NexusMatrix::NexusMatrixError
- Bio::Nexus::NexusParseError
- Bio::Nexus::TaxaBlock
- Bio::Nexus::TreesBlock
- Bio::Nexus::Util
- Bio::NucleicAcid
- Bio::NucleicAcid::Data
- Bio::PAML
- Bio::PAML::Baseml
- Bio::PAML::Baseml::Report
- Bio::PAML::Codeml
- Bio::PAML::Codeml::Model
- Bio::PAML::Codeml::PositiveSite
- Bio::PAML::Codeml::PositiveSites
- Bio::PAML::Codeml::Rates
- Bio::PAML::Codeml::Report
- Bio::PAML::Codeml::ReportError
- Bio::PAML::Codeml::ReportSingle
- Bio::PAML::Common
- Bio::PAML::Common::Report
- Bio::PAML::Yn00
- Bio::PAML::Yn00::Report
- Bio::PDB
- Bio::PDB::AtomFinder
- Bio::PDB::Chain
- Bio::PDB::ChainFinder
- Bio::PDB::ChemicalComponent
- Bio::PDB::ChemicalComponent::Record
- Bio::PDB::Coordinate
- Bio::PDB::DataType
- Bio::PDB::DataType::ConstLikeMethod
- Bio::PDB::DataType::Pdb_AChar
- Bio::PDB::DataType::Pdb_Atom
- Bio::PDB::DataType::Pdb_Character
- Bio::PDB::DataType::Pdb_Date
- Bio::PDB::DataType::Pdb_IDcode
- Bio::PDB::DataType::Pdb_Integer
- Bio::PDB::DataType::Pdb_LString
- Bio::PDB::DataType::Pdb_List
- Bio::PDB::DataType::Pdb_Real
- Bio::PDB::DataType::Pdb_Residue_name
- Bio::PDB::DataType::Pdb_SList
- Bio::PDB::DataType::Pdb_Specification_list
- Bio::PDB::DataType::Pdb_String
- Bio::PDB::DataType::Pdb_StringRJ
- Bio::PDB::DataType::Pdb_SymOP
- Bio::PDB::HetatmFinder
- Bio::PDB::Heterogen
- Bio::PDB::HeterogenFinder
- Bio::PDB::Model
- Bio::PDB::ModelFinder
- Bio::PDB::Record
- Bio::PDB::Record::ANISOU
- Bio::PDB::Record::ATOM
- Bio::PDB::Record::HETATM
- Bio::PDB::Record::Jrnl
- Bio::PDB::Record::Remark1
- Bio::PDB::Record::Remark2
- Bio::PDB::Residue
- Bio::PDB::ResidueFinder
- Bio::PDB::Utils
- Bio::PROSITE
- Bio::PSORT
- Bio::PSORT::CGIDriver
- Bio::PSORT::IPSORT
- Bio::PSORT::PSORT1
- Bio::PSORT::PSORT1::Remote
- Bio::PSORT::PSORT1::Report
- Bio::PSORT::PSORT2
- Bio::PSORT::PSORT2::Remote
- Bio::PSORT::PSORT2::Report
- Bio::PSORT::PSORTB
- Bio::PSORT::WoLF_PSORT
- Bio::PTS1
- Bio::PTS1::Report
- Bio::Pathway
- Bio::Phylip
- Bio::Phylip::DistanceMatrix
- Bio::Phylip::PhylipFormat
- Bio::PhyloXML
- Bio::PhyloXML::Accession
- Bio::PhyloXML::Annotation
- Bio::PhyloXML::BinaryCharacters
- Bio::PhyloXML::BranchColor
- Bio::PhyloXML::CladeRelation
- Bio::PhyloXML::Confidence
- Bio::PhyloXML::Date
- Bio::PhyloXML::Distribution
- Bio::PhyloXML::DomainArchitecture
- Bio::PhyloXML::Events
- Bio::PhyloXML::Id
- Bio::PhyloXML::Node
- Bio::PhyloXML::Other
- Bio::PhyloXML::Parser
- Bio::PhyloXML::Point
- Bio::PhyloXML::Polygon
- Bio::PhyloXML::Property
- Bio::PhyloXML::ProteinDomain
- Bio::PhyloXML::Reference
- Bio::PhyloXML::Sequence
- Bio::PhyloXML::SequenceRelation
- Bio::PhyloXML::Taxonomy
- Bio::PhyloXML::Tree
- Bio::PhyloXML::Uri
- Bio::PhyloXML::Writer
- Bio::Probcons
- Bio::Probcons::DEFAULT_PARSER
- Bio::PubMed
- Bio::REBASE
- Bio::RefSeq
- Bio::Reference
- Bio::References
- Bio::Registry
- Bio::Registry::DB
- Bio::RestrictionEnzyme
- Bio::RestrictionEnzyme::Analysis
- Bio::RestrictionEnzyme::CutSymbol
- Bio::RestrictionEnzyme::CutSymbol::CutSymbol__
- Bio::RestrictionEnzyme::DenseIntArray
- Bio::RestrictionEnzyme::DoubleStranded
- Bio::RestrictionEnzyme::DoubleStranded::AlignedStrands
- Bio::RestrictionEnzyme::DoubleStranded::CutLocationPair
- Bio::RestrictionEnzyme::DoubleStranded::CutLocationPairInEnzymeNotation
- Bio::RestrictionEnzyme::DoubleStranded::CutLocations
- Bio::RestrictionEnzyme::DoubleStranded::CutLocationsInEnzymeNotation
- Bio::RestrictionEnzyme::DoubleStranded::EnzymeAction
- Bio::RestrictionEnzyme::Fragments
- Bio::RestrictionEnzyme::Range
- Bio::RestrictionEnzyme::Range::CutRange
- Bio::RestrictionEnzyme::Range::CutRanges
- Bio::RestrictionEnzyme::Range::HorizontalCutRange
- Bio::RestrictionEnzyme::Range::SequenceRange
- Bio::RestrictionEnzyme::Range::SequenceRange::CalculatedCuts
- Bio::RestrictionEnzyme::Range::SequenceRange::Fragment
- Bio::RestrictionEnzyme::Range::SequenceRange::Fragments
- Bio::RestrictionEnzyme::Range::VerticalCutRange
- Bio::RestrictionEnzyme::SingleStrand
- Bio::RestrictionEnzyme::SingleStrand::CutLocationsInEnzymeNotation
- Bio::RestrictionEnzyme::SingleStrandComplement
- Bio::RestrictionEnzyme::SortedNumArray
- Bio::RestrictionEnzyme::StringFormatting
- Bio::SOAPWSDL
- Bio::SOFT
- Bio::SOSUI
- Bio::SOSUI::Report
- Bio::SOSUI::Report::TMH
- Bio::SPTR
- Bio::SQL
- Bio::SQL::Biodatabase
- Bio::SQL::Bioentry
- Bio::SQL::BioentryDbxref
- Bio::SQL::BioentryPath
- Bio::SQL::BioentryQualifierValue
- Bio::SQL::BioentryReference
- Bio::SQL::BioentryRelationship
- Bio::SQL::Biosequence
- Bio::SQL::Comment
- Bio::SQL::Dbxref
- Bio::SQL::DbxrefQualifierValue
- Bio::SQL::DummyBase
- Bio::SQL::Location
- Bio::SQL::LocationQualifierValue
- Bio::SQL::Ontology
- Bio::SQL::Reference
- Bio::SQL::Seqfeature
- Bio::SQL::SeqfeatureDbxref
- Bio::SQL::SeqfeaturePath
- Bio::SQL::SeqfeatureQualifierValue
- Bio::SQL::SeqfeatureRelationship
- Bio::SQL::Sequence
- Bio::SQL::Taxon
- Bio::SQL::TaxonName
- Bio::SQL::Term
- Bio::SQL::TermDbxref
- Bio::SQL::TermPath
- Bio::SQL::TermRelationship
- Bio::SQL::TermRelationshipTerm
- Bio::SQL::TermSynonym
- Bio::SangerChromatogram
- Bio::Scf
- Bio::Sequence
- Bio::Sequence::AA
- Bio::Sequence::Adapter
- Bio::Sequence::Adapter::BioSQL
- Bio::Sequence::Adapter::EMBL
- Bio::Sequence::Adapter::FastaFormat
- Bio::Sequence::Adapter::FastaNumericFormat
- Bio::Sequence::Adapter::Fastq
- Bio::Sequence::Adapter::GenBank
- Bio::Sequence::Adapter::SangerChromatogram
- Bio::Sequence::Common
- Bio::Sequence::DBLink
- Bio::Sequence::Format
- Bio::Sequence::Format::AminoFormatter
- Bio::Sequence::Format::Formatter
- Bio::Sequence::Format::Formatter::Fasta
- Bio::Sequence::Format::Formatter::Fasta_ncbi
- Bio::Sequence::Format::Formatter::Fasta_numeric
- Bio::Sequence::Format::Formatter::Fastq
- Bio::Sequence::Format::Formatter::Fastq_illumina
- Bio::Sequence::Format::Formatter::Fastq_sanger
- Bio::Sequence::Format::Formatter::Fastq_solexa
- Bio::Sequence::Format::Formatter::Qual
- Bio::Sequence::Format::Formatter::Raw
- Bio::Sequence::Format::FormatterBase
- Bio::Sequence::Format::INSDFeatureHelper
- Bio::Sequence::Format::NucFormatter
- Bio::Sequence::Format::NucFormatter::Embl
- Bio::Sequence::Format::NucFormatter::Genbank
- Bio::Sequence::NA
- Bio::Sequence::NA::MidiTrack
- Bio::Sequence::QualityScore
- Bio::Sequence::QualityScore::Converter
- Bio::Sequence::QualityScore::Phred
- Bio::Sequence::QualityScore::Solexa
- Bio::Sequence::SequenceMasker
- Bio::Shell
- Bio::Shell::ColoredCodonTable
- Bio::Shell::Core
- Bio::Shell::Demo
- Bio::Shell::Ghost
- Bio::Shell::Irb
- Bio::Shell::Private
- Bio::Shell::Script
- Bio::Shell::Setup
- Bio::Shell::Web
- Bio::Shell::Web::Results
- Bio::SiRNA
- Bio::SiRNA::Pair
- Bio::SiRNA::ShRNA
- Bio::Sim4
- Bio::Sim4::Report
- Bio::Sim4::Report::Hit
- Bio::Sim4::Report::Segment
- Bio::Sim4::Report::SegmentPair
- Bio::Sim4::Report::SeqDesc
- Bio::Spidey
- Bio::Spidey::Report
- Bio::Spidey::Report::Hit
- Bio::Spidey::Report::Segment
- Bio::Spidey::Report::SegmentPair
- Bio::Spidey::Report::SeqDesc
- Bio::SwissProt
- Bio::TMHMM
- Bio::TMHMM::Report
- Bio::TMHMM::TMH
- Bio::TRANSFAC
- Bio::TRANSFAC::CELL
- Bio::TRANSFAC::CLASS
- Bio::TRANSFAC::FACTOR
- Bio::TRANSFAC::GENE
- Bio::TRANSFAC::MATRIX
- Bio::TRANSFAC::SITE
- Bio::TargetP
- Bio::TargetP::Report
- Bio::Taxonomy
- Bio::Tcoffee
- Bio::Tcoffee::DEFAULT_PARSER
- Bio::TogoWS
- Bio::TogoWS::AccessWait
- Bio::TogoWS::REST
- Bio::TrEMBL
- Bio::Tree
- Bio::Tree::Edge
- Bio::Tree::NoPathError
- Bio::Tree::Node
- Bio::UniProt
- BiorubyController
- BiorubyGenerator
- BiorubyHelper
- Hash
- Object
- String

No matching classes.

# Bio::Sequence::Common

# DESCRIPTION

Bio::Sequence::Common is a Mixin implementing methods common to Bio::Sequence::AA and Bio::Sequence::NA. All of these methods are available to either Amino Acid or Nucleic Acid sequences, and by encapsulation are also available to Bio::Sequence objects.

# USAGE

    # Create a sequence
    dna = Bio::Sequence.auto('atgcatgcatgc')

    # Splice out a subsequence using a Genbank-style location string
    puts dna.splice('complement(1..4)')

    # What is the base composition?
    puts dna.composition

    # Create a random sequence with the composition of a current sequence
    puts dna.randomize

### Public Instance Methods

+(*arg) click to toggle source

Create a new sequence by adding to an existing sequence. The existing sequence is not modified.

    s = Bio::Sequence::NA.new('atgc')
    s2 = s + 'atgc'
    puts s2                                 #=> "atgcatgc"
    puts s                                  #=> "atgc"

The new sequence is of the same class as the existing sequence if the new data was added to an existing sequence,

    puts s2.class == s.class                #=> true

but if an existing sequence is added to a String, the result is a String

    s3 = 'atgc' + s
    puts s3.class                           #=> String

Returns | new Bio::Sequence::NA/AA or String object

    # File lib/bio/sequence/common.rb, line 121
    def +(*arg)
      self.class.new(super(*arg))
    end

<<(*arg) click to toggle source

    # File lib/bio/sequence/common.rb, line 98
    def <<(*arg)
      concat(*arg)
    end

composition() click to toggle source

Returns a hash of the occurrence counts for each residue or base.

    s = Bio::Sequence::NA.new('atgc')
    puts s.composition              #=> {"a"=>1, "c"=>1, "g"=>1, "t"=>1}

Returns | Hash object

    # File lib/bio/sequence/common.rb, line 215
    def composition
      count = Hash.new(0)
      self.scan(/./) do |x|
        count[x] += 1
      end
      return count
    end

concat(*arg) click to toggle source

Add new data to the end of the current sequence. The original sequence is modified.

    s = Bio::Sequence::NA.new('atgc')
    s << 'atgc'
    puts s                                  #=> "atgcatgc"
    s << s
    puts s                                  #=> "atgcatgcatgcatgc"

Returns | current Bio::Sequence::NA/AA object (modified)

    # File lib/bio/sequence/common.rb, line 94
    def concat(*arg)
      super(self.class.new(*arg))
    end

normalize!() click to toggle source

Normalize the current sequence, removing all whitespace and transforming all positions to uppercase if the sequence is AA or transforming all positions to lowercase if the sequence is NA. The original sequence is modified.

    s = Bio::Sequence::NA.new('atgc')
    s.normalize!

Returns | current Bio::Sequence::NA/AA object (modified)

    # File lib/bio/sequence/common.rb, line 78
    def normalize!
      initialize(self)
      self
    end

Also aliased as: seq!
randomize(hash = nil) click to toggle source

Returns a randomized sequence. The default is to retain the same base/residue composition as the original. If a hash of base/residue counts is given, the new sequence will be based on that hash composition. If a block is given, each new randomly selected position will be passed into the block. In all cases, the original sequence is not modified.

    s = Bio::Sequence::NA.new('atgc')
    puts s.randomize                        #=> "tcag"  (for example)

    new_composition = {'a' => 2, 't' => 2}
    puts s.randomize(new_composition)       #=> "ttaa"  (for example)

    count = 0
    s.randomize { |x| count += 1 }
    puts count                              #=> 4

Arguments:

- (optional) hash: Hash object

Returns | new Bio::Sequence::NA/AA object

    # File lib/bio/sequence/common.rb, line 243
    def randomize(hash = nil)
      if hash
        tmp = ''
        hash.each {|k, v|
          tmp += k * v.to_i
        }
      else
        tmp = self
      end
      seq = self.class.new(tmp)
      # Reference: http://en.wikipedia.org/wiki/Fisher-Yates_shuffle
      seq.length.downto(2) do |n|
        k = rand(n)
        c = seq[n - 1]
        seq[n - 1] = seq[k]
        seq[k] = c
      end
      if block_given? then
        (0...seq.length).each do |i|
          yield seq[i, 1]
        end
        return self.class.new('')
      else
        return seq
      end
    end

seq() click to toggle source

Create a new sequence based on the current sequence. The original sequence is unchanged.

    s = Bio::Sequence::NA.new('atgc')
    s2 = s.seq
    puts s2                                 #=> 'atgc'

Returns | new Bio::Sequence::NA/AA object

    # File lib/bio/sequence/common.rb, line 65
    def seq
      self.class.new(self)
    end

seq!() click to toggle source
Alias for: normalize!
splice(position) click to toggle source

Return a new sequence extracted from the original using a GenBank style position string. See also documentation for the Bio::Location class.

    s = Bio::Sequence::NA.new('atgcatgcatgcatgc')
    puts s.splice('1..3')                           #=> "atg"
    puts s.splice('join(1..3,8..10)')               #=> "atgcat"
    puts s.splice('complement(1..3)')               #=> "cat"
    puts s.splice('complement(join(1..3,8..10))')   #=> "atgcat"

Note that 'complement'ed Genbank position strings will have no effect on Bio::Sequence::AA objects.

Arguments:

- (required) position: String or Bio::Location object

Returns | Bio::Sequence::NA/AA object

    # File lib/bio/sequence/common.rb, line 285
    def splice(position)
      unless position.is_a?(Locations) then
        position = Locations.new(position)
      end
      s = ''
      position.each do |location|
        if location.sequence
          s << location.sequence
        else
          exon = self.subseq(location.from, location.to)
          begin
            exon.complement! if location.strand < 0
          rescue NameError
          end
          s << exon
        end
      end
      return self.class.new(s)
    end

Also aliased as: splicing
splicing(position) click to toggle source
Alias for: splice
subseq(s = 1, e = self.length) click to toggle source

Returns a new sequence containing the subsequence identified by the start and end numbers given as parameters. Important: Biological sequence numbering conventions (one-based) rather than ruby's (zero-based) numbering conventions are used.

    s = Bio::Sequence::NA.new('atggaatga')
    puts s.subseq(1,3)                      #=> "atg"

Start defaults to 1 and end defaults to the entire existing string, so subseq called without any parameters simply returns a new sequence identical to the existing sequence.

    puts s.subseq                           #=> "atggaatga"

Arguments:

- (optional) s(start): Integer (default 1)

- (optional) e(end): Integer (default current sequence length)

Returns | new Bio::Sequence::NA/AA object

    # File lib/bio/sequence/common.rb, line 143
    def subseq(s = 1, e = self.length)
      raise "Error: start/end position must be a positive integer" unless s > 0 and e > 0
      s -= 1
      e -= 1
      self[s..e]
    end

to_fasta(header = '', width = nil) click to toggle source

Bio::Sequence#to_fasta is DEPRECIATED Do not use Bio::Sequence#to_fasta ! Use Bio::Sequence#output instead. Note that Bio::Sequence::NA#to_fasta, Bio::Sequence::AA#to_fasata, and Bio::Sequence::Generic#to_fasta can still be used, because there are no alternative methods.

Output the FASTA format string of the sequence. The 1st argument is used as the comment string. If the 2nd option is given, the output sequence will be folded.

Arguments:

- (optional) header: String object

- (optional) width: Fixnum object (default nil)

Returns | String

    # File lib/bio/sequence/compat.rb, line 49
    def to_fasta(header = '', width = nil)
      warn "Bio::Sequence#to_fasta is obsolete. Use Bio::Sequence#output(:fasta) instead" if $DEBUG
      ">#{header}\n" +
      if width
        self.to_s.gsub(Regexp.new(".{1,#{width}}"), "\\0\n")
      else
        self.to_s + "\n"
      end
    end

to_s() click to toggle source

Return sequence as String. The original sequence is unchanged.

    seq = Bio::Sequence::NA.new('atgc')
    puts s.to_s                             #=> 'atgc'
    puts s.to_s.class                       #=> String
    puts s                                  #=> 'atgc'
    puts s.class                            #=> Bio::Sequence::NA

Returns | String object

    # File lib/bio/sequence/common.rb, line 52
    def to_s
      String.new(self)
    end

Also aliased as: to_str
to_str() click to toggle source
Alias for: to_s
total(hash) click to toggle source

Returns a float total value for the sequence given a hash of base or residue values,

    values = {'a' => 0.1, 't' => 0.2, 'g' => 0.3, 'c' => 0.4}
    s = Bio::Sequence::NA.new('atgc')
    puts s.total(values)                    #=> 1.0

Arguments:

- (required) hash: Hash object

Returns | Float object

    # File lib/bio/sequence/common.rb, line 198
    def total(hash)
      hash.default = 0.0 unless hash.default
      sum = 0.0
      self.each_byte do |x|
        begin
          sum += hash[x.chr]
        end
      end
      return sum
    end

window_search(window_size, step_size = 1) click to toggle source

This method steps through a sequences in steps of 'step_size' by subsequences of 'window_size'. Typically used with a block. Any remaining sequence at the terminal end will be returned.

Prints average GC% on each 100bp

    s.window_search(100) do |subseq|
      puts subseq.gc
    end

Prints every translated peptide (length 5aa) in the same frame

    s.window_search(15, 3) do |subseq|
      puts subseq.translate
    end

Split genome sequence by 10000bp with 1000bp overlap in fasta format

    i = 1
    remainder = s.window_search(10000, 9000) do |subseq|
      puts subseq.to_fasta("segment #{i}", 60)
      i += 1
    end
    puts remainder.to_fasta("segment #{i}", 60)

Arguments:

- (required) window_size: Fixnum

- (optional) step_size: Fixnum (default 1)

Returns | new Bio::Sequence::NA/AA object

    # File lib/bio/sequence/common.rb, line 179
    def window_search(window_size, step_size = 1)
      last_step = 0
      0.step(self.length - window_size, step_size) do |i|
        yield self[i, window_size]
        last_step = i
      end
      return self[last_step + window_size .. -1]
    end

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