<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein nameⁱ

• Recommended name:
  Lipoprotein signal peptidase (EC:3.4.23.36
  • Search proteins in UniProtKB for this EC number.
  • See the description of this EC number in ENZYME.
  )
  Alternative name(s):
  Prolipoprotein signal peptidase

  Signal peptidase II

  Short name:

  SPase II

<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: ‘Name’, ‘Synonyms’, ‘Ordered locus names’ and ‘ORF names’.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene nameⁱ

• Name:lspA

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> describes the function(s) of a protein.<p><a href='/help/function' target='_top'>More...</a></p>Functionⁱ

• This protein specifically catalyzes the removal of signal peptides from prolipoproteins.

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section describes the catalytic activity of an enzyme, i.e. a chemical reaction that the enzyme catalyzes.<p><a href='/help/catalytic_activity' target='_top'>More...</a></p>Catalytic activityⁱ

• • Release of signal peptides from bacterial membrane prolipoproteins. Hydrolyzes -Xaa-Yaa-Zaa-|-(S,diacylglyceryl)Cys-, in which Xaa is hydrophobic (preferably Leu), and Yaa (Ala or Ser) and Zaa (Gly or Ala) have small, neutral side chains. EC:3.4.23.36

<p>This subsection of the ‘Family and domains’ section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesⁱ

• Belongs to the peptidase A8 family.

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationⁱ

• • Cell inner membrane ; Multi-pass membrane protein
• • Cell membrane ; Multi-pass membrane protein

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">'Function'</a> section describes the metabolic pathway(s) associated with a protein.<p><a href='/help/pathway' target='_top'>More...</a></p>Pathwayⁱ

• Pathwayⁱ: lipoprotein biosynthesis (signal peptide cleavage)

  This protein is involved in the pathway lipoprotein biosynthesis (signal peptide cleavage), which is part of Protein modification.
  View all proteins of this organism that are known to be involved in the pathway lipoprotein biosynthesis (signal peptide cleavage) and in Protein modification.

<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'Subcellular location'</a> section describes the extent of a membrane-spanning region of the protein. It denotes the presence of both alpha-helical transmembrane regions and the membrane spanning regions of beta-barrel transmembrane proteins.<p><a href='/help/transmem' target='_top'>More...</a></p>Transmembraneⁱ

• Helical (to residues corresponding to positions @FROM@ⁱ - @TO@ⁱ)

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section is used for enzymes and indicates the residues directly involved in catalysis.<p><a href='/help/act_site' target='_top'>More...</a></p>Active siteⁱ

• (to residues corresponding to position 114)
• (to residues corresponding to position 141)

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsⁱ

• Aspartyl protease
• Cell membrane
• Hydrolase
• Membrane
• Protease
• Transmembrane
• Transmembrane helix
• Cell inner membrane

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO (Gene Ontology) termsⁱ

• GO:0004190 aspartic-type endopeptidase activity
• GO:0005886 plasma membrane