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UniProtKB - P45243 (SPPA_HAEIN)

Entry version 128 (07 Apr 2021)
Sequence version 1 (01 Nov 1995)
Previous versions | rss
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Protein

Protease 4

Gene

sppA

Organism
Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd)
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

Digests cleaved signal peptides in vitro, its in vivo function is unknown. This activity is necessary to maintain proper secretion of mature proteins across the membrane (By similarity).By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<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 sitei201Proton donor/acceptorBy similarity1
Active sitei405NucleophileBy 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

Complete GO annotation on QuickGO ...

GO - Biological processi

Complete GO annotation on QuickGO ...

<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		HINF71421:G1GJ1-1561-MONOMER

<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%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:
Protease 4 (EC:3.4.21.-)
Alternative name(s):
Endopeptidase IV
Protease IV
Signal peptide peptidase
<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:sppA
Ordered Locus Names:HI_1541
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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>OrganismiHaemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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 identifieri71421 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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 lineageiBacteria › Proteobacteria › Gammaproteobacteria › Pasteurellales › Pasteurellaceae › Haemophilus ›
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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
  • UP000000579 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes%5Fmanual">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

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular%5Flocation%5Fsection">'Subcellular location'</a> section describes the subcellular compartment where each non-membrane region of a membrane-spanning protein is found.<p><a href='/help/topo_dom' target='_top'>More...</a></p>Topological domaini1 – 17CytoplasmicSequence analysisAdd BLAST17
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular%5Flocation%5Fsection">'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>Transmembranei18 – 38HelicalSequence analysisAdd BLAST21
Topological domaini39 – 615PeriplasmicSequence analysisAdd BLAST577

Keywords - Cellular componenti

Cell inner membrane, Cell membrane, Membrane

<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 '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>ChainiPRO_00001714391 – 615Protease 4Add BLAST615

<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%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

Homotetramer.

By similarity

Protein-protein interaction databases

STRING: functional protein association networks

More...STRINGi		71421.HI_1541

<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

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

More...SMRi		P45243

Database of comparative protein structure models

More...ModBasei		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

<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 S49 family.Curated

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		COG0616, Bacteria

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_008856_1_1_6

Identification of Orthologs from Complete Genome Data

More...OMAi		DPKGQYL

Database for complete collections of gene phylogenies

More...PhylomeDBi		P45243

Family and domain databases

Conserved Domains Database

More...CDDi		cd07023, S49_Sppa_N_C, 1 hit

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR029045, ClpP/crotonase-like_dom_sf
IPR004634, Pept_S49_pIV
IPR004635, Pept_S49_SppA
IPR002142, Peptidase_S49

Pfam protein domain database

More...Pfami		View protein in Pfam
PF01343, Peptidase_S49, 2 hits

PIRSF; a whole-protein classification database

More...PIRSFi		PIRSF001217, Protease_4_SppA, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF52096, SSF52096, 2 hits

TIGRFAMs; a protein family database

More...TIGRFAMsi		TIGR00705, SppA_67K, 1 hit
TIGR00706, SppA_dom, 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%5Flength">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<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%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">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.

P45243-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MFQVLKFCWK VLCFIRDLVM NVVFLGFVLL LVAIISFSSG GKKSTALTSE 
        60         70         80         90        100
GALLLNLDGY LADNRDETLR WQDALSELNG EHVPRKISTF DVVFAIQQAE 
       110        120        130        140        150
DDPKIKGLVL DLNYFEGADL PALDFIGGAI SHFKDAGKPV IAYADNYSQG 
       160        170        180        190        200
QYYLASFADE IYLNSIGSVD IHGLSQENLY FKEMLDKLAV TPHIFRVGTY 
       210        220        230        240        250
KSAVEPFLRN DMSAEAKANM QRWLGEMWNN YVLSVSENRN IKKDRILPNA 
       260        270        280        290        300
KQYLAELKAL KGNSTAYAQQ RGLVTDVVTR LDLDKKLSAL FGKGSDGKAN 
       310        320        330        340        350
LIEFDDYLTQ LPDRLEHYNV PNKIAVVNVE GTIIDGESDE ENAGGDTIAR 
       360        370        380        390        400
ILRKAHDDNS VKAVILRVNS PGGSAFASEI IRQETENLQK IGKPVIVSMG 
       410        420        430        440        450
AMAASGGYWI SSTADYIIAD SNTITGSIGI FTMFPTFENS IKKIGVHADG 
       460        470        480        490        500
VSTTELANTS AFSPLAKPVQ DIYQTEIEHG YDRFLEIVSK GRQLSKTQVD 
       510        520        530        540        550
KLAQGQVWLG SDAFQNGLVD EIGSFNEAVN KAEQLVNQRQ DTAVQDFSVE 
       560        570        580        590        600
WFTDDNVSLI STLLSDTKKG AQEQLVKWLG LPAPIQKLQK ELNILTKFND 
       610 
PKGQYLYCLN CGKVK
Length:615
Mass (Da):68,057
Last modified:November 1, 1995 - v1
<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:i60BE52496CFAAA3E
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...EMBLi

GenBank nucleotide sequence database

More...GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...DDBJi
Links Updated
L42023 Genomic DNA Translation: AAC23191.1

Protein sequence database of the Protein Information Resource

More...PIRi		F64128

NCBI Reference Sequences

More...RefSeqi		NP_439690.1, NC_000907.1
WP_005693566.1, NC_000907.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...EnsemblBacteriai		AAC23191; AAC23191; HI_1541

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		hin:HI_1541

Pathosystems Resource Integration Center (PATRIC)

More...PATRICi		fig|71421.8.peg.1612

<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
L42023 Genomic DNA Translation: AAC23191.1
PIRiF64128
RefSeqiNP_439690.1, NC_000907.1
WP_005693566.1, NC_000907.1

3D structure databases

SMRiP45243
ModBaseiSearch...

Protein-protein interaction databases

STRINGi71421.HI_1541

Genome annotation databases

EnsemblBacteriaiAAC23191; AAC23191; HI_1541
KEGGihin:HI_1541
PATRICifig|71421.8.peg.1612

Phylogenomic databases

eggNOGiCOG0616, Bacteria
HOGENOMiCLU_008856_1_1_6
OMAiDPKGQYL
PhylomeDBiP45243

Enzyme and pathway databases

BioCyciHINF71421:G1GJ1-1561-MONOMER

Family and domain databases

CDDicd07023, S49_Sppa_N_C, 1 hit
InterProiView protein in InterPro
IPR029045, ClpP/crotonase-like_dom_sf
IPR004634, Pept_S49_pIV
IPR004635, Pept_S49_SppA
IPR002142, Peptidase_S49
PfamiView protein in Pfam
PF01343, Peptidase_S49, 2 hits
PIRSFiPIRSF001217, Protease_4_SppA, 1 hit
SUPFAMiSSF52096, SSF52096, 2 hits
TIGRFAMsiTIGR00705, SppA_67K, 1 hit
TIGR00706, SppA_dom, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...ProtoNeti		Search...

MobiDB: a database of protein disorder and mobility annotations

More...MobiDBi		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 nameiSPPA_HAEIN
<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: P45243
<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%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: November 1, 1995
Last sequence update: November 1, 1995
Last modified: April 7, 2021
This is version 128 of the entry and version 1 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

Reference proteome

Documents

  1. Peptidase families
    Classification of peptidase families and list of entries
  2. SIMILARITY comments
    Index of protein domains and families
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