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Entry version 140 (10 Feb 2021)
Sequence version 1 (01 Feb 1997)
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Protein

Undecaprenyl phosphate-alpha-4-amino-4-deoxy-L-arabinose arabinosyl transferase

Gene

arnT

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 transfer of the L-Ara4N moiety of the glycolipid undecaprenyl phosphate-alpha-L-Ara4N to lipid A. The modified arabinose is attached to lipid A and is required for resistance to polymyxin and cationic antimicrobial peptides.1 Publication

<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

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section describes the metabolic pathway(s) associated with a protein.<p><a href='/help/pathway' target='_top'>More...</a></p>Pathwayi: 4-amino-4-deoxy-beta-L-arabinose-lipid A biosynthesis

This protein is involved in the pathway 4-amino-4-deoxy-beta-L-arabinose-lipid A biosynthesis, which is part of Lipopolysaccharide metabolism.
View all proteins of this organism that are known to be involved in the pathway 4-amino-4-deoxy-beta-L-arabinose-lipid A biosynthesis and in Lipopolysaccharide metabolism.

<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 functionGlycosyltransferase, Transferase
Biological processLipid A biosynthesis, Lipid biosynthesis, Lipid metabolism, Lipopolysaccharide biosynthesis

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

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BioCyci
EcoCyc:G7170-MONOMER
MetaCyc:G7170-MONOMER

BRENDA Comprehensive Enzyme Information System

More...
BRENDAi
2.4.2.43, 2026

UniPathway: a resource for the exploration and annotation of metabolic pathways

More...
UniPathwayi
UPA00037

Protein family/group databases

Carbohydrate-Active enZymes

More...
CAZyi
GT83, Glycosyltransferase Family 83

Transport Classification Database

More...
TCDBi
9.B.142.2.9, the integral membrane glycosyltransferase family 39 (gt39) 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%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:
Undecaprenyl phosphate-alpha-4-amino-4-deoxy-L-arabinose arabinosyl transferase (EC:2.4.2.43)
Alternative name(s):
4-amino-4-deoxy-L-arabinose lipid A transferase
Lipid IV(A) 4-amino-4-deoxy-L-arabinosyltransferase
Polymyxin resistance protein PmrK
Undecaprenyl phosphate-alpha-L-Ara4N transferase
<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:arnT
Synonyms:pmrK, yfbI
Ordered Locus Names:b2257, JW2251
<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>OrganismiEscherichia coli (strain K12)
<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 identifieri83333 [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 lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeEscherichia
<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
  • UP000000318 <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
  • 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%5Flocation%5Fsection">'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>Transmembranei7 – 27HelicalSequence analysisAdd BLAST21
Transmembranei81 – 101HelicalSequence analysisAdd BLAST21
Transmembranei110 – 131HelicalSequence analysisAdd BLAST22
Transmembranei137 – 154HelicalSequence analysisAdd BLAST18
Transmembranei165 – 185HelicalSequence analysisAdd BLAST21
Transmembranei204 – 224HelicalSequence analysisAdd BLAST21
Transmembranei255 – 275HelicalSequence analysisAdd BLAST21
Transmembranei288 – 308HelicalSequence analysisAdd BLAST21
Transmembranei315 – 335HelicalSequence analysisAdd BLAST21
Transmembranei346 – 366HelicalSequence analysisAdd BLAST21
Transmembranei383 – 403HelicalSequence analysisAdd BLAST21
Transmembranei406 – 426HelicalSequence analysisAdd BLAST21

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 '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_00001215041 – 550Undecaprenyl phosphate-alpha-4-amino-4-deoxy-L-arabinose arabinosyl transferaseAdd BLAST550

Proteomic databases

jPOST - Japan Proteome Standard Repository/Database

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jPOSTi
P76473

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

More...
PaxDbi
P76473

PRoteomics IDEntifications database

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PRIDEi
P76473

<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

Induced by BasR.By similarity

<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
4260499, 153 interactors

STRING: functional protein association networks

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STRINGi
511145.b2257

<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 glycosyltransferase 83 family.Curated

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

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eggNOGi
COG1807, Bacteria

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_019200_2_1_6

InParanoid: Eukaryotic Ortholog Groups

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InParanoidi
P76473

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P76473

Family and domain databases

HAMAP database of protein families

More...
HAMAPi
MF_01165, ArnT_transfer, 1 hit

Integrated resource of protein families, domains and functional sites

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InterProi
View protein in InterPro
IPR022839, ArnT_tfrase
IPR003342, Glyco_trans_39/83

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF02366, PMT, 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.

P76473-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MKSVRYLIGL FAFIACYYLL PISTRLLWQP DETRYAEISR EMLASGDWIV
60 70 80 90 100
PHLLGLRYFE KPIAGYWINS IGQWLFGANN FGVRAGVIFA TLLTAALVTW
110 120 130 140 150
FTLRLWRDKR LALLATVIYL SLFIVYAIGT YAVLDPFIAF WLVAGMCSFW
160 170 180 190 200
LAMQAQTWKG KSAGFLLLGI TCGMGVMTKG FLALAVPVLS VLPWVATQKR
210 220 230 240 250
WKDLFIYGWL AVISCVLTVL PWGLAIAQRE PNFWHYFFWV EHIQRFALDD
260 270 280 290 300
AQHRAPFWYY VPVIIAGSLP WLGLLPGALY TGWKNRKHSA TVYLLSWTIM
310 320 330 340 350
PLLFFSVAKG KLPTYILSCF ASLAMLMAHY ALLAAKNNPL ALRINGWINI
360 370 380 390 400
AFGVTGIIAT FVVSPWGPMN TPVWQTFESY KVFCAWSIFS LWAFFGWYTL
410 420 430 440 450
TNVEKTWPFA ALCPLGLALL VGFSIPDRVM EGKHPQFFVE MTQESLQPSR
460 470 480 490 500
YILTDSVGVA AGLAWSLQRD DIIMYRQTGE LKYGLNYPDA KGRFVSGDEF
510 520 530 540 550
ANWLNQHRQE GIITLVLSVD RDEDINSLAI PPADAIDRQE RLVLIQYRPK
Length:550
Mass (Da):62,543
Last modified:February 1, 1997 - 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:iE57E0C3A0608D745
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

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EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
U00096 Genomic DNA Translation: AAC75317.1
AP009048 Genomic DNA Translation: BAE76674.1

Protein sequence database of the Protein Information Resource

More...
PIRi
G64996

NCBI Reference Sequences

More...
RefSeqi
NP_416760.1, NC_000913.3
WP_000844057.1, NZ_STEB01000008.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
AAC75317; AAC75317; b2257
BAE76674; BAE76674; BAE76674

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
57727996
947297

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ecj:JW2251
eco:b2257

Pathosystems Resource Integration Center (PATRIC)

More...
PATRICi
fig|511145.12.peg.2349

<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
U00096 Genomic DNA Translation: AAC75317.1
AP009048 Genomic DNA Translation: BAE76674.1
PIRiG64996
RefSeqiNP_416760.1, NC_000913.3
WP_000844057.1, NZ_STEB01000008.1

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

BioGRIDi4260499, 153 interactors
STRINGi511145.b2257

Protein family/group databases

CAZyiGT83, Glycosyltransferase Family 83
TCDBi9.B.142.2.9, the integral membrane glycosyltransferase family 39 (gt39) family

Proteomic databases

jPOSTiP76473
PaxDbiP76473
PRIDEiP76473

Genome annotation databases

EnsemblBacteriaiAAC75317; AAC75317; b2257
BAE76674; BAE76674; BAE76674
GeneIDi57727996
947297
KEGGiecj:JW2251
eco:b2257
PATRICifig|511145.12.peg.2349

Organism-specific databases

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

More...
EchoBASEi
EB3846

Phylogenomic databases

eggNOGiCOG1807, Bacteria
HOGENOMiCLU_019200_2_1_6
InParanoidiP76473
PhylomeDBiP76473

Enzyme and pathway databases

UniPathwayiUPA00037
BioCyciEcoCyc:G7170-MONOMER
MetaCyc:G7170-MONOMER
BRENDAi2.4.2.43, 2026

Miscellaneous databases

Protein Ontology

More...
PROi
PR:P76473

Family and domain databases

HAMAPiMF_01165, ArnT_transfer, 1 hit
InterProiView protein in InterPro
IPR022839, ArnT_tfrase
IPR003342, Glyco_trans_39/83
PfamiView protein in Pfam
PF02366, PMT, 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 nameiARNT_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: P76473
Secondary accession number(s): Q2MAN2
<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: June 1, 2001
Last sequence update: February 1, 1997
Last modified: February 10, 2021
This is version 140 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. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families
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