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Protein

Shiga-like toxin 2 subunit A

Gene

stxA2

Organism
Enterobacteria phage 933W (Bacteriophage 933W)
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

The A subunit is responsible for inhibiting protein synthesis through the catalytic inactivation of 60S ribosomal subunits. After endocytosis, the A subunit is cleaved by furin in two fragments, A1 and A2: A1 is the catalytically active fragment, and A2 is essential for holotoxin assembly with the B subunits.

<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

  • Endohydrolysis of the N-glycosidic bond at one specific adenosine on the 28S rRNA. EC:3.2.2.22

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 sitei189By 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

GO - Biological processi

<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, Protein synthesis inhibitor, Toxin, Viral exotoxin
Biological processModulation of host virulence by virus, Virulence

<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:
Shiga-like toxin 2 subunit A (EC:3.2.2.22)
Short name:
SLT-2 A subunit
Short name:
SLT-2a
Short name:
SLT-IIa
Alternative name(s):
Verocytotoxin 2 subunit A
Verotoxin 2 subunit A
rRNA N-glycosidase 2
<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:stxA2
Synonyms:stx2A
Ordered Locus Names:L0103
<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>OrganismiEnterobacteria phage 933W (Bacteriophage 933W)
<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 identifieri10730 [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 lineageiVirusesdsDNA viruses, no RNA stageCaudoviralesPodoviridaeSepvirinaeNona33virus
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section only exists in viral entries and indicates the host(s) either as a specific organism or taxonomic group of organisms that are susceptible to be infected by a virus.<p><a href='/help/virus_host' target='_top'>More...</a></p>Virus hostiEscherichia coli O157:H7 [TaxID: 83334]
<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
  • UP000002135 <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: Genome

<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

Secreted

<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 denotes the presence of an N-terminal signal peptide.<p><a href='/help/signal' target='_top'>More...</a></p>Signal peptidei1 – 22Sequence analysisAdd BLAST22
<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_000003079223 – 319Shiga-like toxin 2 subunit AAdd BLAST297

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the PTM / Processing":/help/ptm_processing_section section describes the positions of cysteine residues participating in disulfide bonds.<p><a href='/help/disulfid' target='_top'>More...</a></p>Disulfide bondi263 ↔ 282

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection describes interesting single amino acid sites on the sequence that are not defined in any other subsection. This subsection can be displayed in different sections (‘Function’, ‘PTM / Processing’, ‘Pathology and Biotech’) according to its content.<p><a href='/help/site' target='_top'>More...</a></p>Sitei272 – 273Cleavage; by furinBy similarity2

Keywords - PTMi

Disulfide bond

<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

Shiga-like toxin contains a single A subunit and multiple copies of a B subunit.

Protein-protein interaction databases

Protein interaction database and analysis system

More...
IntActi
P09385, 1 interactor

<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

Secondary structure

1319
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

Protein Model Portal of the PSI-Nature Structural Biology Knowledgebase

More...
ProteinModelPortali
P09385

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

More...
SMRi
P09385

Database of comparative protein structure models

More...
ModBasei
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...
EvolutionaryTracei
P09385

<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

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Family and Domains’ section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni23 – 272A1By similarityAdd BLAST250
Regioni273 – 314A2By similarityAdd BLAST42

<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

Keywords - Domaini

Signal

Phylogenomic databases

KEGG Orthology (KO)

More...
KOi
K11006

Database of Orthologous Groups

More...
OrthoDBi
VOG090002CW

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.40.420.10, 1 hit
4.10.470.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR036041 Ribosome-inact_prot_sf
IPR001574 Ribosome_inactivat_prot
IPR017988 Ribosome_inactivat_prot_CS
IPR016138 Ribosome_inactivat_prot_sub1
IPR016139 Ribosome_inactivat_prot_sub2
IPR016331 Shiga-like_toxin_subunit_A

The PANTHER Classification System

More...
PANTHERi
PTHR33453 PTHR33453, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00161 RIP, 1 hit

PIRSF; a whole-protein classification database

More...
PIRSFi
PIRSF001924 Shigella_toxin_subunit_A, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF56371 SSF56371, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00275 SHIGA_RICIN, 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.

P09385-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MKCILFKWVL CLLLGFSSVS YSREFTIDFS TQQSYVSSLN SIRTEISTPL
60 70 80 90 100
EHISQGTTSV SVINHTPPGS YFAVDIRGLD VYQARFDHLR LIIEQNNLYV
110 120 130 140 150
AGFVNTATNT FYRFSDFTHI SVPGVTTVSM TTDSSYTTLQ RVAALERSGM
160 170 180 190 200
QISRHSLVSS YLALMEFSGN TMTRDASRAV LRFVTVTAEA LRFRQIQREF
210 220 230 240 250
RQALSETAPV YTMTPGDVDL TLNWGRISNV LPEYRGEDGV RVGRISFNNI
260 270 280 290 300
SAILGTVAVI LNCHHQGARS VRAVNEESQP ECQITGDRPV IKINNTLWES
310
NTAAAFLNRK SQFLYTTGK
Length:319
Mass (Da):35,714
Last modified:February 1, 1996 - 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:i98F73319ACAE48D6
GO

Natural variant

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Sequence’ section describes natural variant(s) of the protein sequence.<p><a href='/help/variant' target='_top'>More...</a></p>Natural varianti17S → P in strain: OX3:H21. 1
Natural varianti26T → M in strain: OX3:H21. 1
Natural varianti277E → D in strain: FLY16 and CS1718. 1

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
X07865 Genomic DNA Translation: CAA30714.1
M59432 Unassigned DNA Translation: AAA19623.1
L11079 Unassigned DNA Translation: AAA16362.1
Y10775 Genomic DNA Translation: CAA71747.1
AB017524 Genomic DNA Translation: BAA33759.1
AB015057 Genomic DNA Translation: BAA34372.1
AF461167 Genomic DNA Translation: AAM70033.1
AB048239 Genomic DNA Translation: BAB83026.1
AB048240 Genomic DNA Translation: BAB83028.1
AY443052 Genomic DNA Translation: AAS07596.1
AF125520 Genomic DNA Translation: AAD25445.1

Protein sequence database of the Protein Information Resource

More...
PIRi
I76713
S01032

NCBI Reference Sequences

More...
RefSeqi
NP_049500.1, NC_000924.1

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
1261950

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
vg:1261950

<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
X07865 Genomic DNA Translation: CAA30714.1
M59432 Unassigned DNA Translation: AAA19623.1
L11079 Unassigned DNA Translation: AAA16362.1
Y10775 Genomic DNA Translation: CAA71747.1
AB017524 Genomic DNA Translation: BAA33759.1
AB015057 Genomic DNA Translation: BAA34372.1
AF461167 Genomic DNA Translation: AAM70033.1
AB048239 Genomic DNA Translation: BAB83026.1
AB048240 Genomic DNA Translation: BAB83028.1
AY443052 Genomic DNA Translation: AAS07596.1
AF125520 Genomic DNA Translation: AAD25445.1
PIRiI76713
S01032
RefSeqiNP_049500.1, NC_000924.1

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...
PDBei

Protein Data Bank RCSB

More...
RCSB PDBi

Protein Data Bank Japan

More...
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1R4PX-ray1.77A23-319[»]
2GA4X-ray1.80A23-319[»]
ProteinModelPortaliP09385
SMRiP09385
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

IntActiP09385, 1 interactor

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi1261950
KEGGivg:1261950

Phylogenomic databases

KOiK11006
OrthoDBiVOG090002CW

Miscellaneous databases

EvolutionaryTraceiP09385

Family and domain databases

Gene3Di3.40.420.10, 1 hit
4.10.470.10, 1 hit
InterProiView protein in InterPro
IPR036041 Ribosome-inact_prot_sf
IPR001574 Ribosome_inactivat_prot
IPR017988 Ribosome_inactivat_prot_CS
IPR016138 Ribosome_inactivat_prot_sub1
IPR016139 Ribosome_inactivat_prot_sub2
IPR016331 Shiga-like_toxin_subunit_A
PANTHERiPTHR33453 PTHR33453, 1 hit
PfamiView protein in Pfam
PF00161 RIP, 1 hit
PIRSFiPIRSF001924 Shigella_toxin_subunit_A, 1 hit
SUPFAMiSSF56371 SSF56371, 1 hit
PROSITEiView protein in PROSITE
PS00275 SHIGA_RICIN, 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 nameiSTXA_BP933
<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: P09385
Secondary accession number(s): Q9R398
<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: February 1, 1996
Last modified: December 5, 2018
This is version 107 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 programViral 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

3D-structure, Complete proteome, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families
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