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The annotation and conditions in this rule are derived from the following entries: P28061 (PSB_THEAC), P9WHT9 (PSB_MYCTU), Q9P996 (PSB_ARCFU), Q58634 (PSB_METJA), D4GYZ1 (PSB_HALVD), Q53079 (PSB1_RHOER), Q53083 (PSB2_RHOER)

If a protein meets these conditions... i

Common conditions

Special conditions

    • taxon = Archaea
    • Subsequence at position 9 - @CTER@ aligns to entry P28061 (individually applies "Proteasome subunit beta")
    • Subsequence at position @NTER@ - 8 aligns to entry P28061 (individually applies "Removed in mature form; by autocatalysis")
    • Subsequence at position 9 - 9 aligns to "T" in entry P28061 (individually applies "Nucleophile")
    • taxon = Bacteria
    • Subsequence at position @NTER@ - 57 aligns to entry P9WHT9 (individually applies "Removed in mature form; by autocatalysis")
    • Subsequence at position 58 - 58 aligns to "T" in entry P9WHT9 (individually applies "Nucleophile")
    • Subsequence at position 58 - @CTER@ aligns to entry P9WHT9 (individually applies "Proteasome subunit beta")

... then these annotations are applied i

<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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 namesi

  • Recommended name:
    Proteasome subunit beta (EC:3.4.25.1)
    Alternative name(s):
    20S proteasome beta subunit
    Proteasome core protein PsmB
  • Recommended name:
    Proteasome subunit beta (EC:3.4.25.1)
    Alternative name(s):
    20S proteasome beta subunit
    Proteasome core protein PrcB

<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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 namesi

  • Name:psmB
  • Name:prcB

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section describes the metabolic pathway(s) associated with a protein.<p><a href='/help/pathway' target='_top'>More...</a></p>Pathwayi

  • Pathwayi: proteasomal Pup-dependent pathway

    This protein is involved in the pathway proteasomal Pup-dependent pathway, which is part of Protein degradation.
    View all proteins of this organism that are known to be involved in the pathway proteasomal Pup-dependent pathway and in Protein degradation.

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> describes the function(s) of a protein.<p><a href='/help/function' target='_top'>More...</a></p>Functioni

  • Component of the proteasome core, a large protease complex with broad specificity involved in protein degradation.

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">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

    • Cleavage of peptide bonds with very broad specificity. EC:3.4.25.1

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction%5Fsection">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

  • The 20S proteasome core is composed of 14 alpha and 14 beta subunits that assemble into four stacked heptameric rings, resulting in a barrel-shaped structure. The two inner rings, each composed of seven catalytic beta subunits, are sandwiched by two outer rings, each composed of seven alpha subunits. The catalytic chamber with the active sites is on the inside of the barrel. Has a gated structure, the ends of the cylinder being occluded by the N-termini of the alpha-subunits. Is capped at one or both ends by the proteasome regulatory ATPase, PAN.
  • The 20S proteasome core is composed of 14 alpha and 14 beta subunits that assemble into four stacked heptameric rings, resulting in a barrel-shaped structure. The two inner rings, each composed of seven catalytic beta subunits, are sandwiched by two outer rings, each composed of seven alpha subunits. The catalytic chamber with the active sites is on the inside of the barrel. Has a gated structure, the ends of the cylinder being occluded by the N-termini of the alpha-subunits. Is capped by the proteasome-associated ATPase, ARC.

<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

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes regulatory mechanisms for enzymes, transporters or microbial transcription factors, and reports the components which regulate (by activation or inhibition) the reaction.<p><a href='/help/activity_regulation' target='_top'>More...</a></p>Activity regulationi

  • The formation of the proteasomal ATPase PAN-20S proteasome complex, via the docking of the C-termini of PAN into the intersubunit pockets in the alpha-rings, triggers opening of the gate for substrate entry. Interconversion between the open-gate and close-gate conformations leads to a dynamic regulation of the 20S proteasome proteolysis activity.
  • The formation of the proteasomal ATPase ARC-20S proteasome complex, likely via the docking of the C-termini of ARC into the intersubunit pockets in the alpha-rings, may trigger opening of the gate for substrate entry. Interconversion between the open-gate and close-gate conformations leads to a dynamic regulation of the 20S proteasome proteolysis activity.

<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

<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>Chaini

  • Proteasome subunit beta (to residues corresponding to positions 9 - @CTER@i)
  • Proteasome subunit beta (to residues corresponding to positions 58 - @CTER@i)

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">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

  • Nucleophile (to residues corresponding to position 9)
  • Nucleophile (to residues corresponding to position 58)

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM / Processing</a> section describes a propeptide, which is a part of a protein that is cleaved during maturation or activation. Once cleaved, a propeptide generally has no independent biological function.<p><a href='/help/propep' target='_top'>More...</a></p>Propeptidei

  • Removed in mature form; by autocatalysis (to residues corresponding to positions @NTER@i - 8)
  • Removed in mature form; by autocatalysis (to residues corresponding to positions @NTER@i - 57)

<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

<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

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