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Entry version 124 (10 Apr 2019)
Sequence version 2 (15 Jul 1998)
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Protein

Major intracellular serine protease

Gene

isp

Organism
Bacillus subtilis (strain 168)
Status
Reviewed-Annotation score:

Annotation score:3 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the ‘protein existence’ evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Major intracellular protease produced by Bacillus subtilis.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Function’ 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 sitei50Charge relay systemBy similarity1
Active sitei87Charge relay systemBy similarity1
Active sitei246Charge relay systemBy similarity1

<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 - Molecular functioni

<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

Molecular functionHydrolase, Protease, Serine protease

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
BSUB:BSU13190-MONOMER

Protein family/group databases

MEROPS protease database

More...
MEROPSi
S08.030

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<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 namesi
Recommended name:
Major intracellular serine protease (EC:3.4.21.-)
Alternative name(s):
ISP-1
<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 namesi
Name:isp
Synonyms:ispA
Ordered Locus Names:BSU13190
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiBacillus subtilis (strain 168)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the ‘taxonomic identifier’ or ‘taxid’.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri224308 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiBacteriaFirmicutesBacilliBacillalesBacillaceaeBacillus
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000001570 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">proteome</a> can consist of several components. <br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Chromosome

<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

  • Cytoplasm 1 Publication

GO - Cellular componenti

Keywords - Cellular componenti

Cytoplasm

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">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>PropeptideiPRO_00000270381 – 17Add BLAST17
<p>This subsection of the ‘PTM / Processing’ section describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_000002703918 – 319Major intracellular serine proteaseAdd BLAST302

Keywords - PTMi

Zymogen

Proteomic databases

PaxDb, a database of protein abundance averages across all three domains of life

More...
PaxDbi
P11018

PRoteomics IDEntifications database

More...
PRIDEi
P11018

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction_section">'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_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Homodimer.1 Publication

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
224308.BSU13190

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

3D structure databases

Protein Model Portal of the PSI-Nature Structural Biology Knowledgebase

More...
ProteinModelPortali
P11018

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...
SMRi
P11018

Database of comparative protein structure models

More...
ModBasei
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family_and_domains_section">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini45 – 288Peptidase S8Add BLAST244

<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 S8 family.Curated

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG4105RX7 Bacteria
COG1404 LUCA

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000199176

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P11018

KEGG Orthology (KO)

More...
KOi
K13275

Identification of Orthologs from Complete Genome Data

More...
OMAi
APEMWAK

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P11018

Family and domain databases

Conserved Domains Database

More...
CDDi
cd07477 Peptidases_S8_Subtilisin_subse, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.40.50.200, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR000209 Peptidase_S8/S53_dom
IPR036852 Peptidase_S8/S53_dom_sf
IPR023827 Peptidase_S8_Asp-AS
IPR022398 Peptidase_S8_His-AS
IPR023828 Peptidase_S8_Ser-AS
IPR015500 Peptidase_S8_subtilisin-rel
IPR034202 Subtilisin_Carlsberg-like

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00082 Peptidase_S8, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00723 SUBTILISIN

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF52743 SSF52743, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00136 SUBTILASE_ASP, 1 hit
PS00137 SUBTILASE_HIS, 1 hit
PS00138 SUBTILASE_SER, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>.<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

P11018-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MNGEIRLIPY VTNEQIMDVN ELPEGIKVIK APEMWAKGVK GKNIKVAVLD
60 70 80 90 100
TGCDTSHPDL KNQIIGGKNF TDDDGGKEDA ISDYNGHGTH VAGTIAANDS
110 120 130 140 150
NGGIAGVAPE ASLLIVKVLG GENGSGQYEW IINGINYAVE QKVDIISMSL
160 170 180 190 200
GGPSDVPELK EAVKNAVKNG VLVVCAAGNE GDGDERTEEL SYPAAYNEVI
210 220 230 240 250
AVGSVSVARE LSEFSNANKE IDLVAPGENI LSTLPNKKYG KLTGTSMAAP
260 270 280 290 300
HVSGALALIK SYEEESFQRK LSESEVFAQL IRRTLPLDIA KTLAGNGFLY
310
LTAPDELAEK AEQSHLLTL
Length:319
Mass (Da):33,849
Last modified:July 15, 1998 - v2
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i3517855FC57AA5ED
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Sequence’ section reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.<p><a href='/help/conflict' target='_top'>More...</a></p>Sequence conflicti71T → S in AAA22557 (PubMed:3087947).Curated1
Sequence conflicti160K → E in AAA22557 (PubMed:3087947).Curated1

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
M13760 Genomic DNA Translation: AAA22557.1
AJ002571 Genomic DNA Translation: CAA05598.1
AL009126 Genomic DNA Translation: CAB13176.1

Protein sequence database of the Protein Information Resource

More...
PIRi
I39866

NCBI Reference Sequences

More...
RefSeqi
NP_389202.1, NC_000964.3
WP_003232562.1, NZ_JNCM01000035.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
CAB13176; CAB13176; BSU13190

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
939934

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
bsu:BSU13190

Pathosystems Resource Integration Center (PATRIC)

More...
PATRICi
fig|224308.179.peg.1433

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M13760 Genomic DNA Translation: AAA22557.1
AJ002571 Genomic DNA Translation: CAA05598.1
AL009126 Genomic DNA Translation: CAB13176.1
PIRiI39866
RefSeqiNP_389202.1, NC_000964.3
WP_003232562.1, NZ_JNCM01000035.1

3D structure databases

ProteinModelPortaliP11018
SMRiP11018
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi224308.BSU13190

Protein family/group databases

MEROPSiS08.030

Proteomic databases

PaxDbiP11018
PRIDEiP11018

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiCAB13176; CAB13176; BSU13190
GeneIDi939934
KEGGibsu:BSU13190
PATRICifig|224308.179.peg.1433

Phylogenomic databases

eggNOGiENOG4105RX7 Bacteria
COG1404 LUCA
HOGENOMiHOG000199176
InParanoidiP11018
KOiK13275
OMAiAPEMWAK
PhylomeDBiP11018

Enzyme and pathway databases

BioCyciBSUB:BSU13190-MONOMER

Family and domain databases

CDDicd07477 Peptidases_S8_Subtilisin_subse, 1 hit
Gene3Di3.40.50.200, 1 hit
InterProiView protein in InterPro
IPR000209 Peptidase_S8/S53_dom
IPR036852 Peptidase_S8/S53_dom_sf
IPR023827 Peptidase_S8_Asp-AS
IPR022398 Peptidase_S8_His-AS
IPR023828 Peptidase_S8_Ser-AS
IPR015500 Peptidase_S8_subtilisin-rel
IPR034202 Subtilisin_Carlsberg-like
PfamiView protein in Pfam
PF00082 Peptidase_S8, 1 hit
PRINTSiPR00723 SUBTILISIN
SUPFAMiSSF52743 SSF52743, 1 hit
PROSITEiView protein in PROSITE
PS00136 SUBTILASE_ASP, 1 hit
PS00137 SUBTILASE_HIS, 1 hit
PS00138 SUBTILASE_SER, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the ‘Entry information’ section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiISP1_BACSU
<p>This subsection of the ‘Entry information’ section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called ‘Primary (citable) accession number’.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: P11018
Secondary accession number(s): O34477
<p>This subsection of the ‘Entry information’ section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification (‘Last modified’). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 1, 1989
Last sequence update: July 15, 1998
Last modified: April 10, 2019
This is version 124 of the entry and version 2 of the sequence. See complete history.
<p>This subsection of the ‘Entry information’ section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

<p>This section contains any relevant information that doesn’t fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. Peptidase families
    Classification of peptidase families and list of entries
  2. SIMILARITY comments
    Index of protein domains and families
  3. Bacillus subtilis
    Bacillus subtilis (strain 168): entries, gene names and cross-references to SubtiList
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