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Entry version 151 (13 Nov 2019)
Sequence version 2 (01 Nov 1995)
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Protein

Sialic acid transporter NanT

Gene

nanT

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 proton-dependent transport of sialic acid (PubMed:22167185, PubMed:23848303). Can transport the common sialic acid N-acetylneuraminic acid (Neu5Ac) and the related sialic acids N-glycolylneuraminic acid (Neu5Gc) and 3-keto-3-deoxy-D-glycero-D-galactonononic acid (KDN) (PubMed:23848303). Functions as a bidirectional transporter in vitro (PubMed:22167185).2 Publications

<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 processSugar transport, Transport

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
EcoCyc:NANT-MONOMER
ECOL316407:JW3193-MONOMER
MetaCyc:NANT-MONOMER

Protein family/group databases

Transport Classification Database

More...
TCDBi
2.A.1.12.1 the major facilitator superfamily (mfs)

<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:
Sialic acid transporter NanTUniRule annotationCurated
Alternative name(s):
Sialic acid permeaseUniRule annotationCurated
Sialic acid/H(+) symporterUniRule annotationCurated
<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:nanT1 PublicationUniRule annotation
Ordered Locus Names:b3224, JW3193
<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 domaini1 – 21Cytoplasmic1 PublicationAdd BLAST21
<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>Transmembranei22 – 42HelicalUniRule annotationAdd BLAST21
Topological domaini43 – 57Periplasmic1 PublicationAdd BLAST15
Transmembranei58 – 78HelicalUniRule annotationAdd BLAST21
Topological domaini79 – 91Cytoplasmic1 PublicationAdd BLAST13
Transmembranei92 – 112HelicalUniRule annotationAdd BLAST21
Topological domaini113 – 147Periplasmic1 PublicationAdd BLAST35
Transmembranei148 – 168HelicalUniRule annotationAdd BLAST21
Topological domaini169Cytoplasmic1 Publication1
Transmembranei170 – 190HelicalUniRule annotationAdd BLAST21
Topological domaini191 – 223Periplasmic1 PublicationAdd BLAST33
Transmembranei224 – 244HelicalUniRule annotationAdd BLAST21
Topological domaini245 – 246Cytoplasmic1 Publication2
Transmembranei247 – 267HelicalUniRule annotationAdd BLAST21
Topological domaini268 – 277Periplasmic1 Publication10
Transmembranei278 – 298HelicalUniRule annotationAdd BLAST21
Topological domaini299 – 312Cytoplasmic1 PublicationAdd BLAST14
Transmembranei313 – 333HelicalUniRule annotationAdd BLAST21
Topological domaini334 – 354Periplasmic1 PublicationAdd BLAST21
Transmembranei355 – 375HelicalUniRule annotationAdd BLAST21
Topological domaini376 – 405Cytoplasmic1 PublicationAdd BLAST30
Transmembranei406 – 426HelicalUniRule annotationAdd BLAST21
Topological domaini427 – 430Periplasmic1 Publication4
Transmembranei431 – 451HelicalUniRule annotationAdd BLAST21
Topological domaini452 – 496Cytoplasmic1 PublicationAdd BLAST45

GO - Cellular componenti

Keywords - Cellular componenti

Cell inner membrane, Cell membrane, Membrane

<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

Deletion mutant is unable to grow in the presence of Neu5Ac, Neu5Gc or KDN.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.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00000503111 – 496Sialic acid transporter NanTAdd BLAST496

Proteomic databases

jPOST - Japan Proteome Standard Repository/Database

More...
jPOSTi
P41036

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

More...
PaxDbi
P41036

PRoteomics IDEntifications database

More...
PRIDEi
P41036

<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

Negatively regulated by the transcriptional repressor NanR. Induced by N-acetylneuraminate, via inactivation of NanR.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
4262439, 9 interactors

STRING: functional protein association networks

More...
STRINGi
511145.b3224

<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 major facilitator superfamily. Sialate:H(+) symporter (SHS) (TC 2.A.1.12) family. [View classification]UniRule annotationCurated

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG4105JHE Bacteria
ENOG410XSSD LUCA

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000074791

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P41036

KEGG Orthology (KO)

More...
KOi
K03290

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P41036

Family and domain databases

HAMAP database of protein families

More...
HAMAPi
MF_01238 MFS_NanT, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR011701 MFS
IPR020846 MFS_dom
IPR036259 MFS_trans_sf
IPR004742 SA_transporter

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF07690 MFS_1, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF103473 SSF103473, 1 hit

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR00891 2A0112, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS50850 MFS, 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.

P41036-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MSTTTQNIPW YRHLNRAQWR AFSAAWLGYL LDGFDFVLIA LVLTEVQGEF
60 70 80 90 100
GLTTVQAASL ISAAFISRWF GGLMLGAMGD RYGRRLAMVT SIVLFSAGTL
110 120 130 140 150
ACGFAPGYIT MFIARLVIGM GMAGEYGSSA TYVIESWPKH LRNKASGFLI
160 170 180 190 200
SGFSVGAVVA AQVYSLVVPV WGWRALFFIG ILPIIFALWL RKNIPEAEDW
210 220 230 240 250
KEKHAGKAPV RTMVDILYRG EHRIANIVMT LAAATALWFC FAGNLQNAAI
260 270 280 290 300
VAVLGLLCAA IFISFMVQSA GKRWPTGVML MVVVLFAFLY SWPIQALLPT
310 320 330 340 350
YLKTDLAYNP HTVANVLFFS GFGAAVGCCV GGFLGDWLGT RKAYVCSLLA
360 370 380 390 400
SQLLIIPVFA IGGANVWVLG LLLFFQQMLG QGIAGILPKL IGGYFDTDQR
410 420 430 440 450
AAGLGFTYNV GALGGALAPI IGALIAQRLD LGTALASLSF SLTFVVILLI
460 470 480 490
GLDMPSRVQR WLRPEALRTH DAIDGKPFSG AVPFGSAKND LVKTKS
Length:496
Mass (Da):53,551
Last modified:November 1, 1995 - 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:iD81DB24F7AD6A4CA
GO

<p>This subsection of the ‘Sequence’ section reports difference(s) between the protein sequence shown in the UniProtKB entry and other available protein sequences derived from the same gene.<p><a href='/help/sequence_caution' target='_top'>More...</a></p>Sequence cautioni

The sequence AAA58026 differs from that shown. Reason: Erroneous initiation. Extended N-terminus.Curated
The sequence AAA86827 differs from that shown. Reason: Erroneous initiation. Extended N-terminus.Curated

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 conflicti221E → A in AAA86827 (PubMed:7592358).Curated1
Sequence conflicti441S → R in AAA86827 (PubMed:7592358).Curated1

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
U19539 Genomic DNA Translation: AAA86827.1 Different initiation.
U18997 Genomic DNA Translation: AAA58026.1 Different initiation.
U00096 Genomic DNA Translation: AAC76256.2
AP009048 Genomic DNA Translation: BAE77267.1
D00067 Genomic DNA No translation available.

Protein sequence database of the Protein Information Resource

More...
PIRi
B65114

NCBI Reference Sequences

More...
RefSeqi
NP_417691.4, NC_000913.3
WP_000108454.1, NZ_LN832404.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
AAC76256; AAC76256; b3224
BAE77267; BAE77267; BAE77267

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
947740

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ecj:JW3193
eco:b3224

Pathosystems Resource Integration Center (PATRIC)

More...
PATRICi
fig|1411691.4.peg.3504

<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
U19539 Genomic DNA Translation: AAA86827.1 Different initiation.
U18997 Genomic DNA Translation: AAA58026.1 Different initiation.
U00096 Genomic DNA Translation: AAC76256.2
AP009048 Genomic DNA Translation: BAE77267.1
D00067 Genomic DNA No translation available.
PIRiB65114
RefSeqiNP_417691.4, NC_000913.3
WP_000108454.1, NZ_LN832404.1

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

BioGridi4262439, 9 interactors
STRINGi511145.b3224

Protein family/group databases

TCDBi2.A.1.12.1 the major facilitator superfamily (mfs)

Proteomic databases

jPOSTiP41036
PaxDbiP41036
PRIDEiP41036

Genome annotation databases

EnsemblBacteriaiAAC76256; AAC76256; b3224
BAE77267; BAE77267; BAE77267
GeneIDi947740
KEGGiecj:JW3193
eco:b3224
PATRICifig|1411691.4.peg.3504

Organism-specific databases

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

More...
EchoBASEi
EB4145

Phylogenomic databases

eggNOGiENOG4105JHE Bacteria
ENOG410XSSD LUCA
HOGENOMiHOG000074791
InParanoidiP41036
KOiK03290
PhylomeDBiP41036

Enzyme and pathway databases

BioCyciEcoCyc:NANT-MONOMER
ECOL316407:JW3193-MONOMER
MetaCyc:NANT-MONOMER

Miscellaneous databases

Protein Ontology

More...
PROi
PR:P41036

Family and domain databases

HAMAPiMF_01238 MFS_NanT, 1 hit
InterProiView protein in InterPro
IPR011701 MFS
IPR020846 MFS_dom
IPR036259 MFS_trans_sf
IPR004742 SA_transporter
PfamiView protein in Pfam
PF07690 MFS_1, 1 hit
SUPFAMiSSF103473 SSF103473, 1 hit
TIGRFAMsiTIGR00891 2A0112, 1 hit
PROSITEiView protein in PROSITE
PS50850 MFS, 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 nameiNANT_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: P41036
Secondary accession number(s): P76675, Q2M8Y9
<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: February 1, 1995
Last sequence update: November 1, 1995
Last modified: November 13, 2019
This is version 151 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 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, 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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