Bio::DB::GenBank - Database object interface to GenBank $gb = new Bio::DB::GenBank; $seq = $gb->get_Seq_by_id('MUSIGHBA1'); # Unique ID # or ... $seq = $gb->get_Seq_by_acc('J00522'); # Accession Number # or ... best when downloading very large files, prevents # keeping all of the file in memory # also don't want features, just sequence so let's save bandwith # and request Fasta sequence $gb = new Bio::DB::GenBank(-retrievaltype => 'tempfile' , -format => 'Fasta'); my $seqio = $gb->get_Stream_by_acc(['AC013798', 'AC021953'] ); while( my $clone = $seqio->next_seq ) { print "cloneid is ", $clone-> } Allows the dynamic retrieval of Sequence objects (Bio::Seq) from the GenBank database at NCBI, via an Entrez query. WARNING: Please do NOT spam the Entrez web server with multiple requests. NCBI offers Batch Entrez for this purpose. Batch Entrez support will likely be supported in a future version of DB::GenBank. Note that when querying for GenBank accessions starting with 'NT_' you will need to call $gb->request_format('fasta') beforehand, because in GenBank format (the default) the sequence part will be left out (the reason is that NT contigs are rather annotation with references to clones).

Mailing Lists
User feedback is an integral part of the evolution of this and other Bioperl modules. Send your comments and suggestions preferably to one of the Bioperl mailing lists. Your participation is much appreciated. bioperl-l@bioperl.org - General discussion http://bioperl.org/MailList.shtml - About the mailing lists

Reporting Bugs
Report bugs to the Bioperl bug tracking system to help us keep track the bugs and their resolution. Bug reports can be submitted via email or the web: bioperl-bugs@bio.perl.org http://bio.perl.org/bioperl-bugs/ Email amackey@virginia.edu Email jason@chg.mc.duke.edu The rest of the documentation details each of the object methods. Internal methods are usually preceded with a _

get_params
Title : get_params Usage : my %params = $self->get_params($mode) Function: Returns key,value pairs to be passed to NCBI database for either 'batch' or 'single' sequence retrieval method Returns : a key,value pair hash Args : 'single' or 'batch' mode for retrieval

get_Seq_by_id
Title : get_Seq_by_id Usage : $seq = $db->get_Seq_by_id('ROA1_HUMAN') Function: Gets a Bio::Seq object by its name Returns : a Bio::Seq object Args : the id (as a string) of a sequence Throws : "id does not exist" exception

get_Seq_by_acc
Title : get_Seq_by_acc Usage : $seq = $db->get_Seq_by_acc($acc); Function: Gets a Seq object by accession numbers Returns : a Bio::Seq object Args : the accession number as a string Note : For GenBank, this just calls the same code for get_Seq_by_id() Throws : "id does not exist" exception

get_request
Title : get_request Usage : my $url = $self->get_request Function: HTTP::Request Returns : Args : %qualifiers = a hash of qualifiers (ids, format, etc)

get_Stream_by_batch
Title : get_Stream_by_batch Usage : $seq = $db->get_Stream_by_batch($ref); Function: Retrieves Seq objects from Entrez 'en masse', rather than one at a time. For large numbers of sequences, this is far superior than get_Stream_by_[id/acc](). Example : Returns : a Bio::SeqIO stream object Args : $ref : either an array reference, a filename, or a filehandle from which to get the list of unique ids/accession numbers.

get_Stream_by_id
Title : get_Stream_by_id Usage : $stream = $db->get_Stream_by_id( [$uid1, $uid2] ); Function: Gets a series of Seq objects by unique identifiers Returns : a Bio::SeqIO stream object Args : $ref : a reference to an array of unique identifiers for the desired sequence entries

get_Stream_by_acc
Title : get_Stream_by_acc Usage : $seq = $db->get_Stream_by_acc([$acc1, $acc2]); Function: Gets a series of Seq objects by accession numbers Returns : a Bio::SeqIO stream object Args : $ref : a reference to an array of accession numbers for the desired sequence entries Note : For GenBank, this just calls the same code for get_Stream_by_id() 1; __END__