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Entry version 125 (02 Dec 2020)
Sequence version 1 (07 Jun 2005)
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Protein

NAD kinase

Gene

nadK

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 regulation of the intracellular balance of NAD and NADP, and is a key enzyme in the biosynthesis of NADP. Catalyzes specifically the phosphorylation on 2'-hydroxyl of the adenosine moiety of NAD to yield NADP. It can use ATP and other nucleoside triphosphates (UTP, CTP, GTP, dATP, TTP) as phosphoryl donors, while nucleoside mono- or diphosphates and poly(P) can not.UniRule annotation3 Publications

<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 'Function' section provides information relevant to cofactors. A cofactor is any non-protein substance required for a protein to be catalytically active. Some cofactors are inorganic, such as the metal atoms zinc, iron, and copper in various oxidation states. Others, such as most vitamins, are organic.<p><a href='/help/cofactor' target='_top'>More...</a></p>Cofactori

a divalent metal cationUniRule annotation1 Publication

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">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

Competitively and allosterically inhibited by NADH and NADPH at physiological concentrations, whereas inhibition by NADP is only slight. Inhibited by p-chloromercuribenzoate and HgCl2.2 Publications

<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

Kcat is 55 sec(-1) for kinase activity with ATP. Kcat is 125 sec(-1) for kinase activity with NAD.
  1. KM=2 mM for NAD (at pH 7 and 37 degrees Celsius)3 Publications
  2. KM=2.5 mM for ATP (at pH 7 and 37 degrees Celsius)3 Publications
  3. KM=4.1 mM for magnesium (at pH 7 and 37 degrees Celsius)3 Publications
  1. Vmax=12.86 µmol/min/mg enzyme (at pH 7 and 37 degrees Celsius)3 Publications

pH dependencei

Optimum pH is between 7.2 and 7.5.3 Publications

Temperature dependencei

Optimum temperature is 60 degrees Celsius and half of the activity is lost on treatment at 65 degrees Celsius for 10 minutes.3 Publications

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> 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 sitei73Proton acceptorUniRule annotation1
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes the interaction between a single amino acid and another chemical entity. Priority is given to the annotation of physiological ligands.<p><a href='/help/binding' target='_top'>More...</a></p>Binding sitei158NADUniRule annotation1
Binding sitei175NADUniRule annotation1
<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>Sitei175Responsible for conferring strict specificity to NAD1
Binding sitei177NADUniRule annotation1
Binding sitei185NAD; via carbonyl oxygenUniRule annotation1
Binding sitei247NADUniRule annotation1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes a region in the protein which binds nucleotide phosphates. It always involves more than one amino acid and includes all residues involved in nucleotide-binding.<p><a href='/help/np_bind' target='_top'>More...</a></p>Nucleotide bindingi73 – 74NADUniRule annotation2
Nucleotide bindingi147 – 148NADUniRule annotation2
Nucleotide bindingi188 – 193NADUniRule annotation6

<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 functionKinase, Transferase
LigandATP-binding, NAD, NADP, Nucleotide-binding

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
EcoCyc:MONOMER0-541
MetaCyc:MONOMER0-541

BRENDA Comprehensive Enzyme Information System

More...
BRENDAi
2.7.1.23, 2026

<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:
NAD kinaseUniRule annotation (EC:2.7.1.23UniRule annotation)
Alternative name(s):
ATP-dependent NAD kinaseUniRule annotation
<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:nadKUniRule annotation
Synonyms:yfjB, yfjE
Ordered Locus Names:b2615, JW2596
<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

GO - Cellular componenti

Keywords - Cellular componenti

Cytoplasm

<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

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/manual/pathology%5Fand%5Fbiotech%5Fsection">'Pathology and Biotech'</a> section describes the effect of the experimental mutation of one or more amino acid(s) on the biological properties of the protein.<p><a href='/help/mutagen' target='_top'>More...</a></p>Mutagenesisi175R → E: Does not exhibit NADH kinase activity in addition to NAD kinase activity. 1 Publication1
Mutagenesisi175R → G: Exhibits NADH kinase activity in addition to NAD kinase activity. Reduces the Vmax of the NAD kinase activity. 1 Publication1
Mutagenesisi175R → H: Exhibits NADH kinase activity in addition to NAD kinase activity. 1 Publication1
Mutagenesisi175R → I: Does not exhibit NADH kinase activity in addition to NAD kinase activity. 1 Publication1
Mutagenesisi175R → K: Does not exhibit NADH kinase activity in addition to NAD kinase activity. 1 Publication1
Mutagenesisi175R → Q: Exhibits NADH kinase activity in addition to NAD kinase activity. 1 Publication1
Mutagenesisi175R → T: Exhibits NADH kinase activity in addition to NAD kinase activity. 1 Publication1

<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_00001206161 – 292NAD kinaseAdd BLAST292

Proteomic databases

jPOST - Japan Proteome Standard Repository/Database

More...
jPOSTi
P0A7B3

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

More...
PaxDbi
P0A7B3

PRoteomics IDEntifications database

More...
PRIDEi
P0A7B3

<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%5Fsection">'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%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Homohexamer.

1 Publication

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...
BioGRIDi
4260607, 19 interactors
851428, 4 interactors

Database of interacting proteins

More...
DIPi
DIP-48103N

Protein interaction database and analysis system

More...
IntActi
P0A7B3, 4 interactors

STRING: functional protein association networks

More...
STRINGi
511145.b2615

<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

3D structure databases

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

More...
SMRi
P0A7B3

Database of comparative protein structure models

More...
ModBasei
Search...

<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 NAD kinase family.UniRule annotation

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
COG0061, Bacteria

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_008831_0_1_6

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P0A7B3

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P0A7B3

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
2.60.200.30, 1 hit
3.40.50.10330, 1 hit

HAMAP database of protein families

More...
HAMAPi
MF_00361, NAD_kinase, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR017438, ATP-NAD_kinase_N
IPR017437, ATP-NAD_kinase_PpnK-typ_C
IPR016064, NAD/diacylglycerol_kinase_sf
IPR002504, NADK

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF01513, NAD_kinase, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF111331, SSF111331, 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.

P0A7B3-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MNNHFKCIGI VGHPRHPTAL TTHEMLYRWL CTKGYEVIVE QQIAHELQLK
60 70 80 90 100
NVKTGTLAEI GQLADLAVVV GGDGNMLGAA RTLARYDIKV IGINRGNLGF
110 120 130 140 150
LTDLDPDNAQ QQLADVLEGH YISEKRFLLE AQVCQQDCQK RISTAINEVV
160 170 180 190 200
LHPGKVAHMI EFEVYIDEIF AFSQRSDGLI ISTPTGSTAY SLSAGGPILT
210 220 230 240 250
PSLDAITLVP MFPHTLSARP LVINSSSTIR LRFSHRRNDL EISCDSQIAL
260 270 280 290
PIQEGEDVLI RRCDYHLNLI HPKDYSYFNT LSTKLGWSKK LF
Length:292
Mass (Da):32,566
Last modified:June 7, 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:iD1E631658408F2E1
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 X07863 differs from that shown. Reason: Frameshift.Curated
The sequence Y00357 differs from that shown. Reason: Frameshift.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
U36840 Genomic DNA Translation: AAA79785.1
U00096 Genomic DNA Translation: AAC75664.1
AP009048 Genomic DNA Translation: BAA16500.1
X07863 Genomic DNA No translation available.
Y00357 Genomic DNA No translation available.

Protein sequence database of the Protein Information Resource

More...
PIRi
B65040

NCBI Reference Sequences

More...
RefSeqi
NP_417105.1, NC_000913.3
WP_001059169.1, NZ_STEB01000040.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
AAC75664; AAC75664; b2615
BAA16500; BAA16500; BAA16500

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
52077888
947092

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ecj:JW2596
eco:b2615

Pathosystems Resource Integration Center (PATRIC)

More...
PATRICi
fig|1411691.4.peg.4124

<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
U36840 Genomic DNA Translation: AAA79785.1
U00096 Genomic DNA Translation: AAC75664.1
AP009048 Genomic DNA Translation: BAA16500.1
X07863 Genomic DNA No translation available.
Y00357 Genomic DNA No translation available.
PIRiB65040
RefSeqiNP_417105.1, NC_000913.3
WP_001059169.1, NZ_STEB01000040.1

3D structure databases

SMRiP0A7B3
ModBaseiSearch...

Protein-protein interaction databases

BioGRIDi4260607, 19 interactors
851428, 4 interactors
DIPiDIP-48103N
IntActiP0A7B3, 4 interactors
STRINGi511145.b2615

Proteomic databases

jPOSTiP0A7B3
PaxDbiP0A7B3
PRIDEiP0A7B3

Genome annotation databases

EnsemblBacteriaiAAC75664; AAC75664; b2615
BAA16500; BAA16500; BAA16500
GeneIDi52077888
947092
KEGGiecj:JW2596
eco:b2615
PATRICifig|1411691.4.peg.4124

Organism-specific databases

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

More...
EchoBASEi
EB2109

Phylogenomic databases

eggNOGiCOG0061, Bacteria
HOGENOMiCLU_008831_0_1_6
InParanoidiP0A7B3
PhylomeDBiP0A7B3

Enzyme and pathway databases

BioCyciEcoCyc:MONOMER0-541
MetaCyc:MONOMER0-541
BRENDAi2.7.1.23, 2026

Miscellaneous databases

Protein Ontology

More...
PROi
PR:P0A7B3

Family and domain databases

Gene3Di2.60.200.30, 1 hit
3.40.50.10330, 1 hit
HAMAPiMF_00361, NAD_kinase, 1 hit
InterProiView protein in InterPro
IPR017438, ATP-NAD_kinase_N
IPR017437, ATP-NAD_kinase_PpnK-typ_C
IPR016064, NAD/diacylglycerol_kinase_sf
IPR002504, NADK
PfamiView protein in Pfam
PF01513, NAD_kinase, 1 hit
SUPFAMiSSF111331, SSF111331, 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 nameiNADK_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: P0A7B3
Secondary accession number(s): P37768, P46140, P77490
<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 7, 2005
Last sequence update: June 7, 2005
Last modified: December 2, 2020
This is version 125 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

Direct protein sequencing, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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