Class: Protein

Inherits:
Object
  • Object
show all
Defined in:
lib/protk/protein.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Protein

Returns a new instance of Protein.



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# File 'lib/protk/protein.rb', line 52

def initialize()

end

Instance Attribute Details

#group_number ⇒ Object

Returns the value of attribute group_number.



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# File 'lib/protk/protein.rb', line 8

def group_number
  @group_number
end

#group_probability ⇒ Object

Returns the value of attribute group_probability.



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# File 'lib/protk/protein.rb', line 9

def group_probability
  @group_probability
end

#n_indistinguishable_proteins ⇒ Object

Returns the value of attribute n_indistinguishable_proteins.



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# File 'lib/protk/protein.rb', line 13

def n_indistinguishable_proteins
  @n_indistinguishable_proteins
end

#peptides ⇒ Object

Returns the value of attribute peptides.



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# File 'lib/protk/protein.rb', line 15

def peptides
  @peptides
end

#percent_coverage ⇒ Object

Returns the value of attribute percent_coverage.



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# File 'lib/protk/protein.rb', line 14

def percent_coverage
  @percent_coverage
end

#probability ⇒ Object

Returns the value of attribute probability.



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# File 'lib/protk/protein.rb', line 10

def probability
  @probability
end

#protein_name ⇒ Object

Returns the value of attribute protein_name.



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# File 'lib/protk/protein.rb', line 12

def protein_name
  @protein_name
end

#sequence ⇒ Object

Returns the value of attribute sequence.



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# File 'lib/protk/protein.rb', line 11

def sequence
  @sequence
end

Class Method Details

.from_protxml(xmlnode) ⇒ Object 



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# File 'lib/protk/protein.rb', line 35

def from_protxml(xmlnode)
	prot=new()
	groupnode = xmlnode.parent
	prot.group_probability = groupnode['probability'].to_f
	prot.group_number = groupnode['group_number'].to_i
	prot.probability = xmlnode['probability'].to_f
	prot.protein_name = xmlnode['protein_name']
	prot.n_indistinguishable_proteins = xmlnode['n_indistinguishable_proteins'].to_i
	prot.percent_coverage = xmlnode['percent_coverage'].to_f

	peptide_nodes = xmlnode.find('protxml:peptide','protxml:http://regis-web.systemsbiology.net/protXML')
	prot.peptides = peptide_nodes.collect { |e| Peptide.from_protxml(e) }
	prot
end

Instance Method Details

#representative_peptides ⇒ Object

Return just one peptide for each unique sequence choosing the peptide with highest probability



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# File 'lib/protk/protein.rb', line 58

def representative_peptides()
	best_peptides={}
	self.peptides.each do |peptide|
		seq = peptide.sequence
		if best_peptides[seq].nil?
			best_peptides[seq]=peptide				
		else
			best_peptides[seq]=peptide if peptide.nsp_adjusted_probability > best_peptides[seq].nsp_adjusted_probability
		end
	end

	best_peptides.values
end