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Entry version 79 (29 Sep 2021)
Sequence version 1 (01 Nov 1996)
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Protein

Nitrate transporter 2.1

Gene

NRT2.1

Organism
Chlamydomonas reinhardtii (Chlamydomonas smithii)
Status
Reviewed-Annotation score:

Annotation score:4 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 transcript 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 nitrate transport, but does not seem to be able to mediate transport by its own (PubMed:8180624).

Acts as a dual component transporter with NAR2 (system 1) (PubMed:8180624, PubMed:10682832).

Imports nitrate with high affinity when expressed with NAR2 in a heterologous system (Xenopus oocytes) (PubMed:10682832).

Involved in a high affinity and a high capacity transport specific for both nitrate and nitrite (PubMed:8567664).

3 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

Nitrite transport mediated by system 1 is very sensitive to inhibition by nitrate.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 processNitrate assimilation, Transport

Protein family/group databases

Transport Classification Database

More...
TCDBi
2.A.1.8.6, 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:
Nitrate transporter 2.11 Publication
Alternative name(s):
Nitrate assimilation related protein 31 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:NRT2.11 Publication
Synonyms:NAR-31 Publication, NAR31 Publication
ORF Names:CHLREDRAFT_192090Imported
<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>OrganismiChlamydomonas reinhardtii (Chlamydomonas smithii)Imported
<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 identifieri3055 [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 lineageiEukaryotaViridiplantaeChlorophytacore chlorophytesChlorophyceaeCS cladeChlamydomonadalesChlamydomonadaceaeChlamydomonas

<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 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>Transmembranei53 – 73HelicalSequence analysisAdd BLAST21
Transmembranei86 – 106HelicalSequence analysisAdd BLAST21
Transmembranei113 – 133HelicalSequence analysisAdd BLAST21
Transmembranei143 – 163HelicalSequence analysisAdd BLAST21
Transmembranei173 – 193HelicalSequence analysisAdd BLAST21
Transmembranei211 – 231HelicalSequence analysisAdd BLAST21
Transmembranei262 – 280HelicalSequence analysisAdd BLAST19
Transmembranei296 – 316HelicalSequence analysisAdd BLAST21
Transmembranei338 – 358HelicalSequence analysisAdd BLAST21
Transmembranei366 – 386HelicalSequence analysisAdd BLAST21
Transmembranei400 – 420HelicalSequence analysisAdd BLAST21
Transmembranei433 – 453HelicalSequence analysisAdd BLAST21

Keywords - Cellular componenti

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_00004389801 – 547Nitrate transporter 2.1Add BLAST547

<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

Up-regulated by nitrate (PubMed:8111016, PubMed:9648741). Up-regulated by nitrite (PubMed:9648741).2 Publications

<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

Protein interaction database and analysis system

More...
IntActi
Q39608, 1 interactor

STRING: functional protein association networks

More...
STRINGi
3055.EDP00897

<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

<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
ENOG502QPIC, Eukaryota

Database of Orthologous Groups

More...
OrthoDBi
542533at2759

Family and domain databases

Conserved Domains Database

More...
CDDi
cd17341, MFS_NRT2_like, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.20.1250.20, 2 hits

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR011701, MFS
IPR036259, MFS_trans_sf
IPR044772, NO3_transporter
IPR004737, NO3_transporter_NarK/NarU-like

The PANTHER Classification System

More...
PANTHERi
PTHR23515, PTHR23515, 1 hit

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
TIGR00886, 2A0108, 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.

Q39608-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MAEKPATVNA ELVKEMDAAP KKYPYSLDSE GKANYCPVWR FTQPHMMAFH
60 70 80 90 100
LSWICFFMSF VATFAPASLA PIIRDDLFLT KSQLGNAGVA AVCGAIAARI
110 120 130 140 150
FMGIVVDSIG PRYGAAATML MTAPAVFCMA LVTDFSTFAC VRFFIGLSLC
160 170 180 190 200
MFVCCQFWCG TMFNVKIVGT ANAIAAGWGN MGGGACHFIM PLIYQGIKDG
210 220 230 240 250
GVPGYQAWRW AFFVPGGIYI LTATLTLLLG IDHPSGKDYR DLKKEGTLKA
260 270 280 290 300
KGAMWPVVKC GLGNYRSWIL ALTYGYSFGV ELTVDNVIVE YLFDQFGLNL
310 320 330 340 350
AVAGALGAIF GLMNLFTRAT GGMISDLVAK PFGMRGRIWA LWIIQTLGGI
360 370 380 390 400
FCIVLGKVSN SLSSTIVIMI VFSIFCQQAC GLHFGITPFV SRRAYGVVSG
410 420 430 440 450
LVGAGGNTGA AITQAIWFAG TAPWQLTLSK ADGFVYMGIM TIGLTLPLFF
460 470 480 490 500
IWFPMWGSML TGPREGAEEE DYYMREWSAE EVASGLHQGS MRFAMESKSQ
510 520 530 540
RGTRDKRAAG PARVPQQLRL GARCCQARGG LIRCVLAQSL GATGCSD
Length:547
Mass (Da):59,131
Last modified:November 1, 1996 - 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:iDCDBF86126EE0B2B
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 EDP00897 differs from that shown. Reason: Erroneous gene model prediction.Curated

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
Z25438 mRNA Translation: CAA80925.1
DS496137 Genomic DNA Translation: EDP00897.1 Sequence problems.

Protein sequence database of the Protein Information Resource

More...
PIRi
S40142

Genome annotation databases

Ensembl plant genome annotation project

More...
EnsemblPlantsi
PNW79322; PNW79322; CHLRE_09g410850v5

Gramene; a comparative resource for plants

More...
Gramenei
PNW79322; PNW79322; CHLRE_09g410850v5

<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
Z25438 mRNA Translation: CAA80925.1
DS496137 Genomic DNA Translation: EDP00897.1 Sequence problems.
PIRiS40142

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

IntActiQ39608, 1 interactor
STRINGi3055.EDP00897

Protein family/group databases

TCDBi2.A.1.8.6, the major facilitator superfamily (mfs)

Genome annotation databases

EnsemblPlantsiPNW79322; PNW79322; CHLRE_09g410850v5
GrameneiPNW79322; PNW79322; CHLRE_09g410850v5

Phylogenomic databases

eggNOGiENOG502QPIC, Eukaryota
OrthoDBi542533at2759

Family and domain databases

CDDicd17341, MFS_NRT2_like, 1 hit
Gene3Di1.20.1250.20, 2 hits
InterProiView protein in InterPro
IPR011701, MFS
IPR036259, MFS_trans_sf
IPR044772, NO3_transporter
IPR004737, NO3_transporter_NarK/NarU-like
PANTHERiPTHR23515, PTHR23515, 1 hit
PfamiView protein in Pfam
PF07690, MFS_1, 1 hit
SUPFAMiSSF103473, SSF103473, 1 hit
TIGRFAMsiTIGR00886, 2A0108, 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 nameiNRT21_CHLRE
<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: Q39608
Secondary accession number(s): A8J4P5
<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 15, 2017
Last sequence update: November 1, 1996
Last modified: September 29, 2021
This is version 79 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 programPlant 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

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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