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UniProtKB - P0C037 (PPNP_ECOLI)

Entry version 105 (02 Jun 2021)
Sequence version 1 (05 Jul 2005)
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Protein

Pyrimidine/purine nucleoside phosphorylase

Gene

ppnP

Organism
Escherichia coli (strain K12)
Status
Reviewed-Annotation score:

Annotation score:5 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

Catalyzes the phosphorolysis of diverse nucleosides, yielding D-ribose 1-phosphate and the respective free bases. Can use uridine, adenosine, guanosine, cytidine, thymidine, inosine and xanthosine as substrates. Also catalyzes the reverse reactions. Is not able to produce D-ribose 1-phosphate from D-ribose and phosphate.

1 Publication

<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

<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 ...

<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 functionGlycosyltransferase, Transferase

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...BioCyci		EcoCyc:EG12159-MONOMER
MetaCyc:EG12159-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_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:
Pyrimidine/purine nucleoside phosphorylase1 PublicationUniRule annotation (EC:2.4.2.1UniRule annotation1 Publication, EC:2.4.2.2UniRule annotation1 Publication)
Alternative name(s):
Adenosine phosphorylase1 Publication
Cytidine phosphorylase1 Publication
Guanosine phosphorylase1 Publication (EC:2.4.2.151 Publication)
Inosine phosphorylase1 Publication
Thymidine phosphorylase1 Publication (EC:2.4.2.41 Publication)
Uridine phosphorylase1 Publication (EC:2.4.2.31 Publication)
Xanthosine phosphorylase1 Publication
<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:ppnP1 Publication
Synonyms:yaiEImported
Ordered Locus Names:b0391, JW0382
<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>OrganismiEscherichia coli (strain K12)
<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 identifieri83333 [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 lineageiBacteria › Proteobacteria › Gammaproteobacteria › Enterobacterales › Enterobacteriaceae › Escherichia ›
<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
  • UP000000318 <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
  • UP000000625 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

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

<p>This subsection of the 'Pathology and Biotech' section describes the in vivo effects caused by ablation of the gene (or one or more transcripts) coding for the protein described in the entry. This includes gene knockout and knockdown, provided experiments have been performed in the context of a whole organism or a specific tissue, and not at the single-cell level.<p><a href='/help/disruption_phenotype' target='_top'>More...</a></p>Disruption phenotypei

Cells lacking this gene show a consistent change in xanthine level.1 Publication

<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_00002117631 – 94Pyrimidine/purine nucleoside phosphorylaseAdd BLAST94

Proteomic databases

jPOST - Japan Proteome Standard Repository/Database

More...jPOSTi		P0C037

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

More...PaxDbi		P0C037

PRoteomics IDEntifications database

More...PRIDEi		P0C037

<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

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...BioGRIDi		4259817, 22 interactors
849437, 8 interactors

Protein interaction database and analysis system

More...IntActi		P0C037, 9 interactors

STRING: functional protein association networks

More...STRINGi		511145.b0391

<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		P0C037

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 nucleoside phosphorylase PpnP family.UniRule annotation

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		COG3123, Bacteria

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_157874_0_0_6

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		P0C037

Database for complete collections of gene phylogenies

More...PhylomeDBi		P0C037

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...Gene3Di		2.60.120.10, 1 hit

HAMAP database of protein families

More...HAMAPi		MF_01537, Nucleos_phosphorylase_PpnP, 1 hit

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR009664, Ppnp
IPR014710, RmlC-like_jellyroll
IPR011051, RmlC_Cupin_sf

The PANTHER Classification System

More...PANTHERi		PTHR36540, PTHR36540, 1 hit

Pfam protein domain database

More...Pfami		View protein in Pfam
PF06865, Ppnp, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF51182, SSF51182, 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>. 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_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.

P0C037-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MLQSNEYFSG KVKSIGFSSS STGRASVGVM VEGEYTFSTA EPEEMTVISG 
        60         70         80         90 
ALNVLLPDAT DWQVYEAGSV FNVPGHSEFH LQVAEPTSYL CRYL
Length:94
Mass (Da):10,234
Last modified:July 5, 2005 - 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:iD7EF5C0AFD86D661
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 conflicti77 – 94SEFHL…LCRYL → TVSFICKLPNPPLICAAICN SSPSP in CAA54286 (PubMed:8807285).CuratedAdd BLAST18

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
X76979 Genomic DNA Translation: CAA54286.1
U73857 Genomic DNA Translation: AAB18115.1
U00096 Genomic DNA Translation: AAC73494.1
AP009048 Genomic DNA Translation: BAE76172.1

Protein sequence database of the Protein Information Resource

More...PIRi		G64767

NCBI Reference Sequences

More...RefSeqi		NP_414925.1, NC_000913.3
WP_000941942.1, NZ_STEB01000007.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...EnsemblBacteriai		AAC73494; AAC73494; b0391
BAE76172; BAE76172; BAE76172

Database of genes from NCBI RefSeq genomes

More...GeneIDi		61752286
945048

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		ecj:JW0382
eco:b0391

Pathosystems Resource Integration Center (PATRIC)

More...PATRICi		fig|511145.12.peg.403

<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
X76979 Genomic DNA Translation: CAA54286.1
U73857 Genomic DNA Translation: AAB18115.1
U00096 Genomic DNA Translation: AAC73494.1
AP009048 Genomic DNA Translation: BAE76172.1
PIRiG64767
RefSeqiNP_414925.1, NC_000913.3
WP_000941942.1, NZ_STEB01000007.1

3D structure databases

SMRiP0C037
ModBaseiSearch...

Protein-protein interaction databases

BioGRIDi4259817, 22 interactors
849437, 8 interactors
IntActiP0C037, 9 interactors
STRINGi511145.b0391

Proteomic databases

jPOSTiP0C037
PaxDbiP0C037
PRIDEiP0C037

Genome annotation databases

EnsemblBacteriaiAAC73494; AAC73494; b0391
BAE76172; BAE76172; BAE76172
GeneIDi61752286
945048
KEGGiecj:JW0382
eco:b0391
PATRICifig|511145.12.peg.403

Organism-specific databases

EchoBASE - an integrated post-genomic database for E. coli

More...EchoBASEi		EB2079

Phylogenomic databases

eggNOGiCOG3123, Bacteria
HOGENOMiCLU_157874_0_0_6
InParanoidiP0C037
PhylomeDBiP0C037

Enzyme and pathway databases

BioCyciEcoCyc:EG12159-MONOMER
MetaCyc:EG12159-MONOMER

Miscellaneous databases

Protein Ontology

More...PROi		PR:P0C037

Family and domain databases

Gene3Di2.60.120.10, 1 hit
HAMAPiMF_01537, Nucleos_phosphorylase_PpnP, 1 hit
InterProiView protein in InterPro
IPR009664, Ppnp
IPR014710, RmlC-like_jellyroll
IPR011051, RmlC_Cupin_sf
PANTHERiPTHR36540, PTHR36540, 1 hit
PfamiView protein in Pfam
PF06865, Ppnp, 1 hit
SUPFAMiSSF51182, SSF51182, 1 hit

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 nameiPPNP_ECOLI
<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: P0C037
Secondary accession number(s): P36768, P77343, Q2MC34
<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 5, 2005
Last sequence update: July 5, 2005
Last modified: June 2, 2021
This is version 105 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. Uncharacterized protein families (UPF)
    List of uncharacterized protein family (UPF) entries
  2. SIMILARITY comments
    Index of protein domains and families
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