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Entry version 65 (26 Feb 2020)
Sequence version 1 (23 Sep 2008)
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Protein

Xaa-Pro dipeptidyl-peptidase

Gene

pepX

Organism
Streptococcus equi subsp. zooepidemicus (strain MGCS10565)
Status
Reviewed-Annotation score:

Annotation score:2 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>
-Protein inferred from homologyi <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

Removes N-terminal dipeptides sequentially from polypeptides having unsubstituted N-termini provided that the penultimate residue is proline.UniRule annotation

<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

  • Hydrolyzes Xaa-Pro-|- bonds to release unblocked, N-terminal dipeptides from substrates including Ala-Pro-|-p-nitroanilide and (sequentially) Tyr-Pro-|-Phe-Pro-|-Gly-Pro-|-Ile.UniRule annotation EC:3.4.14.11

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 sitei349Charge relay systemUniRule annotation1
Active sitei469Charge relay systemUniRule annotation1
Active sitei499Charge relay systemUniRule annotation1

<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 functionAminopeptidase, Hydrolase, Protease, Serine protease

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
SEQU552526:G1GCI-349-MONOMER

Protein family/group databases

ESTHER database of the Alpha/Beta-hydrolase fold superfamily of proteins

More...
ESTHERi
stre4-pepx Lactobacillus_peptidase

MEROPS protease database

More...
MEROPSi
S15.001

<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:
Xaa-Pro dipeptidyl-peptidaseUniRule annotation (EC:3.4.14.11UniRule annotation)
Alternative name(s):
X-Pro dipeptidyl-peptidaseUniRule annotation
X-prolyl-dipeptidyl aminopeptidaseUniRule annotation
Short name:
X-PDAPUniRule annotation
<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:pepXUniRule annotation
Ordered Locus Names:Sez_0319
<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>OrganismiStreptococcus equi subsp. zooepidemicus (strain MGCS10565)
<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 identifieri552526 [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 lineageiBacteriaFirmicutesBacilliLactobacillalesStreptococcaceaeStreptococcus
<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
  • UP000001873 <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

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 '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_10001323411 – 761Xaa-Pro dipeptidyl-peptidaseAdd BLAST761

<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

Homodimer.

UniRule annotation

<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
B4U108

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 S15 family.UniRule annotation

Phylogenomic databases

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_011800_0_0_9

KEGG Orthology (KO)

More...
KOi
K01281

Identification of Orthologs from Complete Genome Data

More...
OMAi
LYTASPY

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
2.60.120.260, 1 hit
3.40.50.1820, 1 hit

HAMAP database of protein families

More...
HAMAPi
MF_00698 Aminopeptidase_S15, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR029058 AB_hydrolase
IPR008979 Galactose-bd-like_sf
IPR008252 Pept_S15_Xpro
IPR015251 PepX_N_dom
IPR036313 PepX_N_dom_sf
IPR000383 Xaa-Pro-like_dom
IPR013736 Xaa-Pro_dipept_C

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF02129 Peptidase_S15, 1 hit
PF08530 PepX_C, 1 hit
PF09168 PepX_N, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00923 LACTOPTASE

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00939 PepX_C, 1 hit
SM00940 PepX_N, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF49785 SSF49785, 1 hit
SSF53474 SSF53474, 1 hit
SSF81761 SSF81761, 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.

B4U108-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MRYNQLSYIP TSLETAVAEL QALGFAVQQE QAPKESFAIF LRKLFFHFQD
60 70 80 90 100
TDYPLSHMIA TKELDLLSFL ASDEALTKEV FDLVALQVLG FIPAVDFTDT
110 120 130 140 150
QDFIQKIGFP IVFDSQQLLL NLHQLLATRQ KSGVTLIDSL VSQGLLPMDN
160 170 180 190 200
CYHYFNGKAL ATFDTTSLIR EVVYVEAPLD TDQDGQLDLI KVNIIRPKAS
210 220 230 240 250
TAIPSMMTAS PYHQGINETA NDKKLHRMEG ELSPKAPRRI TVEPTDFQPL
260 270 280 290 300
ATKPSRLPVN ECQETFSHIS SYTLNDYFLA RGFANLYVSG VGTAGSTGFM
310 320 330 340 350
TSGDYAQIES FKAVIDWLNG RATAYTSHKR DYQIKADWSN GLVATTGKSY
360 370 380 390 400
LGTMSTGLAT TGVDGLAVII AEAAISSWYD YYRENGLVCS PGGYPGEDLD
410 420 430 440 450
VLTELTYSRN LLPGDYLRHN DHYQQLLSQQ SQALERQSGN YNQFWHDRNY
460 470 480 490 500
LPQADHIKCE VVYTHGLQDW NVKPRQVYNI FNALPDGLGK HLFLHHGEHV
510 520 530 540 550
YMHNWQSIDF REAMNALLCQ KMLGQNNGFT LPTIIWQDNQ KEQTWKELTA
560 570 580 590 600
FGGHSKRQIA LGEDHVLIDN HYGEEDFKRY SKDFRAFKAE LFEGKANQAV
610 620 630 640 650
IDILLEEDLP INGQACLKLK LKSSENKGIL SAQLLDYGKK KRFADIPAIL
660 670 680 690 700
ELDSIDNGQQ FAREALKELP FKDSPYRVVT KGVLNLQHRS NLLTIEDIPN
710 720 730 740 750
DQWMTITFHL QPTIYHMAKG DTLRVVLYTT DFEHTIRDNS NYALTLDLEQ
760
SYLLIPTDEE E
Length:761
Mass (Da):86,259
Last modified:September 23, 2008 - 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:i90380E993D1B730D
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
CP001129 Genomic DNA Translation: ACG61695.1

NCBI Reference Sequences

More...
RefSeqi
WP_012514974.1, NC_011134.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
ACG61695; ACG61695; Sez_0319

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
sez:Sez_0319

<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
CP001129 Genomic DNA Translation: ACG61695.1
RefSeqiWP_012514974.1, NC_011134.1

3D structure databases

SMRiB4U108
ModBaseiSearch...

Protein family/group databases

ESTHERistre4-pepx Lactobacillus_peptidase
MEROPSiS15.001

Genome annotation databases

EnsemblBacteriaiACG61695; ACG61695; Sez_0319
KEGGisez:Sez_0319

Phylogenomic databases

HOGENOMiCLU_011800_0_0_9
KOiK01281
OMAiLYTASPY

Enzyme and pathway databases

BioCyciSEQU552526:G1GCI-349-MONOMER

Family and domain databases

Gene3Di2.60.120.260, 1 hit
3.40.50.1820, 1 hit
HAMAPiMF_00698 Aminopeptidase_S15, 1 hit
InterProiView protein in InterPro
IPR029058 AB_hydrolase
IPR008979 Galactose-bd-like_sf
IPR008252 Pept_S15_Xpro
IPR015251 PepX_N_dom
IPR036313 PepX_N_dom_sf
IPR000383 Xaa-Pro-like_dom
IPR013736 Xaa-Pro_dipept_C
PfamiView protein in Pfam
PF02129 Peptidase_S15, 1 hit
PF08530 PepX_C, 1 hit
PF09168 PepX_N, 1 hit
PRINTSiPR00923 LACTOPTASE
SMARTiView protein in SMART
SM00939 PepX_C, 1 hit
SM00940 PepX_N, 1 hit
SUPFAMiSSF49785 SSF49785, 1 hit
SSF53474 SSF53474, 1 hit
SSF81761 SSF81761, 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 nameiPEPX_STREM
<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: B4U108
<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: April 14, 2009
Last sequence update: September 23, 2008
Last modified: February 26, 2020
This is version 65 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

Documents

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