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Entry version 105 (13 Nov 2019)
Sequence version 1 (20 Dec 2005)
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Protein

Serine/threonine transporter SstT

Gene

sstT

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

Involved in the import of serine and threonine into the cell, with the concomitant import of sodium (symport system).2 Publications

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section describes regulatory mechanisms for enzymes, transporters or microbial transcription factors, and reports the components which regulate (by activation or inhibition) the reaction.<p><a href='/help/activity_regulation' target='_top'>More...</a></p>Activity regulationi

Activated by valinomycin and inhibited by monensin.1 Publication

<p>This subsection of the ‘Function’ section describes biophysical and chemical properties, such as maximal absorption, kinetic parameters, pH dependence, redox potentials and temperature dependence.<p><a href='/help/biophysicochemical_properties' target='_top'>More...</a></p>Kineticsi

  1. KM=0.82 µM for serine1 Publication
  1. Vmax=0.37 µmol/min/mg enzyme1 Publication

pH dependencei

Optimum pH is 7.0.1 Publication

Temperature dependencei

Optimum temperature is 40 degrees Celsius.1 Publication

<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

Biological processAmino-acid transport, Symport, Transport

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
EcoCyc:YGJU-MONOMER
ECOL316407:JW3060-MONOMER
MetaCyc:YGJU-MONOMER

Protein family/group databases

Transport Classification Database

More...
TCDBi
2.A.23.4.1 the dicarboxylate/amino acid:cation (na(+) or h(+)) symporter (daacs) family

<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:
Serine/threonine transporter SstT
Alternative name(s):
Na(+)/serine-threonine symporter
<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:sstT
Synonyms:ygjU
Ordered Locus Names:b3089, JW3060
<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 lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeEscherichia
<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

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'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 domaini2 – 15CytoplasmicSequence analysisAdd BLAST14
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'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>Transmembranei16 – 36HelicalSequence analysisAdd BLAST21
Topological domaini37 – 45PeriplasmicSequence analysis9
Transmembranei46 – 66HelicalSequence analysisAdd BLAST21
Topological domaini67 – 83CytoplasmicSequence analysisAdd BLAST17
Transmembranei84 – 104HelicalSequence analysisAdd BLAST21
Topological domaini105 – 142PeriplasmicSequence analysisAdd BLAST38
Transmembranei143 – 163HelicalSequence analysisAdd BLAST21
Topological domaini164 – 179CytoplasmicSequence analysisAdd BLAST16
Transmembranei180 – 200HelicalSequence analysisAdd BLAST21
Topological domaini201 – 217PeriplasmicSequence analysisAdd BLAST17
Transmembranei218 – 238HelicalSequence analysisAdd BLAST21
Topological domaini239 – 299CytoplasmicSequence analysisAdd BLAST61
Transmembranei300 – 320HelicalSequence analysisAdd BLAST21
Topological domaini321 – 331PeriplasmicSequence analysisAdd BLAST11
Transmembranei332 – 352HelicalSequence analysisAdd BLAST21
Topological domaini353 – 414CytoplasmicSequence analysisAdd BLAST62

GO - Cellular componenti

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 <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section indicates that the initiator methionine is cleaved from the mature protein.<p><a href='/help/init_met' target='_top'>More...</a></p>Initiator methionineiRemoved1 Publication
<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_00002021182 – 414Serine/threonine transporter SstTAdd BLAST413

Proteomic databases

Encyclopedia of Proteome Dynamics

More...
EPDi
P0AGE4

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

More...
PaxDbi
P0AGE4

PRoteomics IDEntifications database

More...
PRIDEi
P0AGE4

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

<p>This subsection of the ‘Expression’ section reports the experimentally proven effects of inducers and repressors (usually chemical compounds or environmental factors) on the level of protein (or mRNA) expression (up-regulation, down-regulation, constitutive expression).<p><a href='/help/induction' target='_top'>More...</a></p>Inductioni

Repressed by tryptophan.1 Publication

<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
4260951, 17 interactors

STRING: functional protein association networks

More...
STRINGi
511145.b3089

<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

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG4107QV7 Bacteria
COG3633 LUCA

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000218252

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P0AGE4

KEGG Orthology (KO)

More...
KOi
K07862

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P0AGE4

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.10.3860.10, 1 hit

HAMAP database of protein families

More...
HAMAPi
MF_01582 Ser_Thr_transp_SstT, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR001991 Na-dicarboxylate_symporter
IPR036458 Na:dicarbo_symporter_sf
IPR023025 Ser_Thr_transp_SstT

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00375 SDF, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF118215 SSF118215, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00713 NA_DICARBOXYL_SYMP_1, 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.

<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.

P0AGE4-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MTTQRSPGLF RRLAHGSLVK QILVGLVLGI LLAWISKPAA EAVGLLGTLF
60 70 80 90 100
VGALKAVAPI LVLMLVMASI ANHQHGQKTN IRPILFLYLL GTFSAALAAV
110 120 130 140 150
VFSFAFPSTL HLSSSAGDIS PPSGIVEVMR GLVMSMVSNP IDALLKGNYI
160 170 180 190 200
GILVWAIGLG FALRHGNETT KNLVNDMSNA VTFMVKLVIR FAPIGIFGLV
210 220 230 240 250
SSTLATTGFS TLWGYAQLLV VLVGCMLLVA LVVNPLLVWW KIRRNPFPLV
260 270 280 290 300
LLCLRESGVY AFFTRSSAAN IPVNMALCEK LNLDRDTYSV SIPLGATINM
310 320 330 340 350
AGAAITITVL TLAAVNTLGI PVDLPTALLL SVVASLCACG ASGVAGGSLL
360 370 380 390 400
LIPLACNMFG ISNDIAMQVV AVGFIIGVLQ DSCETALNSS TDVLFTAAAC
410
QAEDDRLANS ALRN
Length:414
Mass (Da):43,478
Last modified:December 20, 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:i47713C1DB77B1E38
GO

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
U18997 Genomic DNA Translation: AAA57891.1
U00096 Genomic DNA Translation: AAC76124.1
AP009048 Genomic DNA Translation: BAE77139.1
D13328 Genomic DNA No translation available.

Protein sequence database of the Protein Information Resource

More...
PIRi
F65097

NCBI Reference Sequences

More...
RefSeqi
NP_417560.1, NC_000913.3
WP_000211655.1, NZ_STEB01000001.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
AAC76124; AAC76124; b3089
BAE77139; BAE77139; BAE77139

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
947605

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ecj:JW3060
eco:b3089

Pathosystems Resource Integration Center (PATRIC)

More...
PATRICi
fig|1411691.4.peg.3640

<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
U18997 Genomic DNA Translation: AAA57891.1
U00096 Genomic DNA Translation: AAC76124.1
AP009048 Genomic DNA Translation: BAE77139.1
D13328 Genomic DNA No translation available.
PIRiF65097
RefSeqiNP_417560.1, NC_000913.3
WP_000211655.1, NZ_STEB01000001.1

3D structure databases

Database of comparative protein structure models

More...
ModBasei
Search...

SWISS-MODEL Interactive Workspace

More...
SWISS-MODEL-Workspacei
Submit a new modelling project...

Protein-protein interaction databases

BioGridi4260951, 17 interactors
STRINGi511145.b3089

Protein family/group databases

TCDBi2.A.23.4.1 the dicarboxylate/amino acid:cation (na(+) or h(+)) symporter (daacs) family

Proteomic databases

EPDiP0AGE4
PaxDbiP0AGE4
PRIDEiP0AGE4

Genome annotation databases

EnsemblBacteriaiAAC76124; AAC76124; b3089
BAE77139; BAE77139; BAE77139
GeneIDi947605
KEGGiecj:JW3060
eco:b3089
PATRICifig|1411691.4.peg.3640

Organism-specific databases

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

More...
EchoBASEi
EB2590

Phylogenomic databases

eggNOGiENOG4107QV7 Bacteria
COG3633 LUCA
HOGENOMiHOG000218252
InParanoidiP0AGE4
KOiK07862
PhylomeDBiP0AGE4

Enzyme and pathway databases

BioCyciEcoCyc:YGJU-MONOMER
ECOL316407:JW3060-MONOMER
MetaCyc:YGJU-MONOMER

Miscellaneous databases

Protein Ontology

More...
PROi
PR:P0AGE4

Family and domain databases

Gene3Di1.10.3860.10, 1 hit
HAMAPiMF_01582 Ser_Thr_transp_SstT, 1 hit
InterProiView protein in InterPro
IPR001991 Na-dicarboxylate_symporter
IPR036458 Na:dicarbo_symporter_sf
IPR023025 Ser_Thr_transp_SstT
PfamiView protein in Pfam
PF00375 SDF, 1 hit
SUPFAMiSSF118215 SSF118215, 1 hit
PROSITEiView protein in PROSITE
PS00713 NA_DICARBOXYL_SYMP_1, 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 nameiSSTT_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: P0AGE4
Secondary accession number(s): P42602, Q2M9B7
<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: December 20, 2005
Last sequence update: December 20, 2005
Last modified: November 13, 2019
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

Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
  2. Escherichia coli
    Escherichia coli (strain K12): entries and cross-references to EcoGene
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