[ensembl-dev] Another API question about Alignmentsbetweenmouse / human

Eduardo Andrés León eandres at cnio.es
Mon Jan 28 16:09:45 GMT 2013


Exactly !!!!

Thank you very much for your help !

Regards

On 28 Jan 2013, at 17:03, "Kathryn Beal" <kbeal at ebi.ac.uk> wrote:

> Hi,
> How about:
> 
>     foreach my $aln_slice (@{$align_slice->get_all_Slices()}) {
>         my $slices = $aln_slice->get_all_underlying_Slices;
>         foreach my $this_slice (@$slices) {
>             print $aln_slice->genome_db->name . ":"  . $this_slice->seq_region_name . ":" . $this_slice->start . ":" . $this_slice->end . ":" . $this_slice->strand . "\n";
>         }
>     }
> 
> This gives the following output:
> 
> mus_musculus:2:28403186:28403879:1
> homo_sapiens:9:100149814:100149843:-1
> homo_sapiens:GL000220.1:11378:11383:-1
> homo_sapiens:9:135978315:135979072:-1
> 
> Cheers
> Kathryn
> 
> Kathryn Beal, PhD
> European Bioinformatics Institute  (EMBL-EBI)
> Wellcome Trust Genome Campus, Hinxton
> Cambridge CB10 1SD, UK 
> Tel. +44 (0)1223 494458
> www.ensembl.org
> 
> On 28 Jan 2013, at 15:40, Eduardo Andrés León wrote:
> 
>> umm, but I lost the coordinates (which I really need them)
>> 
>> 
>> On 28 Jan 2013, at 14:35, "Kathryn Beal" <kbeal at ebi.ac.uk> wrote:
>> 
>>> Hi,
>>> You can use the AlignSlice to get the alignment, i.e. add the following lines:
>>> 
>>> my $align_slice_adaptor =
>>>       Bio::EnsEMBL::Registry->get_adaptor("Multi", "compara", "AlignSlice");
>>> 
>>> my $align_slice = $align_slice_adaptor->fetch_by_Slice_MethodLinkSpeciesSet($source_org_slice, $methodLinkSpeciesSet, 'expanded', 'restrict');
>>> 
>>> print $alignIO $align_slice->get_SimpleAlign;
>>> 
>>> I also used the "clustalw" as the format for AlignIO.
>>> 
>>> I hope that helps,
>>> Cheers
>>> Kathryn
>>> 
>>> Kathryn Beal, PhD
>>> European Bioinformatics Institute  (EMBL-EBI)
>>> Wellcome Trust Genome Campus, Hinxton
>>> Cambridge CB10 1SD, UK 
>>> Tel. +44 (0)1223 494458
>>> www.ensembl.org
>>> 
>>> On 28 Jan 2013, at 10:27, Eduardo Andrés León wrote:
>>> 
>>>> Dear all,
>>>> 	I'm trying to match the mouse sequence(2-28403186:28403879)  into the human genome using ensembl 67.
>>>> 
>>>> Using the web, I've got the following :
>>>> 
>>>> http://may2012.archive.ensembl.org/Mus_musculus/Location/Compara_Alignments?align=410&db=core&r=2%3A28403186-28403879
>>>> 
>>>> mus_musculus:2 > 	chromosome:NCBIM37:2:28403186:28403879:1
>>>> homo_sapiens:9 > 	chromosome:GRCh37:9:100149814:100149843:-1
>>>> supercontig:GRCh37:GL000220.1:11378:11383:-1
>>>> chromosome:GRCh37:9:135978315:135979072:-1
>>>> 
>>>> 
>>>> 
>>>> But when I use the API, I obtain more than 55 fragments (attached as a zip file) :
>>>> 
>>>> <alignment.3012.17691580863.txt.zip>
>>>> 
>>>> The code for extracting the data is the following :
>>>> 
>>>> getAlignMent(2,28403186,28403879);
>>>> 
>>>> 	sub getAlignMent{
>>>> 		my ($source_org_chr,$source_org_start,$source_org_end)=@_;
>>>> 
>>>> 		#Auto-configure the registry
>>>> 		Bio::EnsEMBL::Registry->load_registry_from_db(
>>>> 			-host=>"ensembldb.cnio.es",
>>>> 			-user=>"ensembl");
>>>> 
>>>> 
>>>> 		# Get the Compara Adaptor for MethodLinkSpeciesSets
>>>> 		my $method_link_species_set_adaptor =
>>>> 		    Bio::EnsEMBL::Registry->get_adaptor(
>>>> 		      "Multi", "compara", "MethodLinkSpeciesSet");
>>>> 
>>>> 		# Get the MethodLinkSpecieSet for source_org-mouse lastz-net alignments
>>>> 		my $methodLinkSpeciesSet = $method_link_species_set_adaptor->
>>>> 			fetch_by_method_link_type_registry_aliases("BLASTZ_NET", ["mouse", "human"]);
>>>> 
>>>> 		# Define the start and end positions for the alignment
>>>> 		# Get the source_org *core* Adaptor for Slices
>>>> 		my $source_org_slice_adaptor =
>>>> 		    Bio::EnsEMBL::Registry->get_adaptor(
>>>> 		      "mouse", "core", "Slice");
>>>> 
>>>> 		# Get the slice corresponding to the region of interest
>>>> 		my $source_org_slice = $source_org_slice_adaptor->fetch_by_region(
>>>> 		    "chromosome", $source_org_chr, $source_org_start, $source_org_end);
>>>> 
>>>> 		# Get the Compara Adaptor for GenomicAlignBlocks
>>>> 		my $genomic_align_block_adaptor =
>>>> 		    Bio::EnsEMBL::Registry->get_adaptor(
>>>> 		      "Multi", "compara", "GenomicAlignBlock");
>>>> 
>>>> 		# The fetch_all_by_MethodLinkSpeciesSet_Slice() returns a ref.
>>>> 		# to an array of GenomicAlingBlock objects (source_org is the reference species) 
>>>> 		my $all_genomic_align_blocks = $genomic_align_block_adaptor->
>>>> 		    fetch_all_by_MethodLinkSpeciesSet_Slice(
>>>> 		        $methodLinkSpeciesSet, $source_org_slice, undef, undef, "restrict");
>>>> 
>>>> 		# set up an AlignIO to format SimpleAlign output
>>>> 		my $outputAl="alignment." . rand(10000) . ".txt";
>>>> 		open(OUT,">$outputAl") || die "3 $!\n";
>>>> 		my $alignIO = Bio::AlignIO->newFh(-interleaved => 0,
>>>> 		                                  -fh => \*OUT,
>>>> 		                                  -format => 'pfam',
>>>> 		                                  -idlength => 20);
>>>> 
>>>> 		# print the restricted alignments
>>>> 		if (scalar(@{$all_genomic_align_blocks})==0){
>>>> 			open(NMR,">>chr$source_org_chr\_No_mapping_regions.txt") || die "$!\n";
>>>> 			print NMR "$source_org_chr\t$source_org_start\t$source_org_end\n";
>>>> 			close NMR;
>>>> 			return();
>>>> 		}
>>>> 		else{
>>>> 			foreach my $genomic_align_block ( @{ $all_genomic_align_blocks } ) {
>>>> 				print $alignIO $genomic_align_block->get_SimpleAlign;
>>>> 			}
>>>> 			close OUT;
>>>> 		}
>>>> 	}
>>>> 
>>>> This same happens with other segments, but not all of them.
>>>> 
>>>> So, can anybody tell me how to extract the same records the web shows ?
>>>> 
>>>> Regards and thanks in advance !
>>>> 
>>>> 
>>>> 
>>>> 
>>>> _______________________________________________
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>>> 
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>> 
>> ===================================================
>> Eduardo Andrés León
>> Tlfn: (+34) 91 732 80 00 / 91 224 69 00 (ext 5054/3063)
>> e-mail: eandres at cnio.es        Fax: (+34) 91 224 69 76
>> Unidad de Bioinformática       Bioinformatics Unit
>> Centro Nacional de Investigaciones Oncológicas
>> C.P.: 28029                Zip Code: 28029
>> C/. Melchor Fernández Almagro, 3    Madrid (Spain)
>> http://bioinfo.cnio.es	http://bioinfo.cnio.es/people/eandres
>> ===================================================
>> 
>> _______________________________________________
>> Dev mailing list    Dev at ensembl.org
>> Posting guidelines and subscribe/unsubscribe info: http://lists.ensembl.org/mailman/listinfo/dev
>> Ensembl Blog: http://www.ensembl.info/
> 
> _______________________________________________
> Dev mailing list    Dev at ensembl.org
> Posting guidelines and subscribe/unsubscribe info: http://lists.ensembl.org/mailman/listinfo/dev
> Ensembl Blog: http://www.ensembl.info/

===================================================
Eduardo Andrés León
Tlfn: (+34) 91 732 80 00 / 91 224 69 00 (ext 5054/3063)
e-mail: eandres at cnio.es        Fax: (+34) 91 224 69 76
Unidad de Bioinformática       Bioinformatics Unit
Centro Nacional de Investigaciones Oncológicas
C.P.: 28029                Zip Code: 28029
C/. Melchor Fernández Almagro, 3    Madrid (Spain)
http://bioinfo.cnio.es	http://bioinfo.cnio.es/people/eandres
===================================================

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