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Protein

N-acetyl-D-glucosamine kinase

Gene

NAGK

Organism
Homo sapiens (Human)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

Converts endogenous N-acetylglucosamine (GlcNAc), a major component of complex carbohydrates, from lysosomal degradation or nutritional sources into GlcNAc 6-phosphate. Involved in the N-glycolylneuraminic acid (Neu5Gc) degradation pathway: although human is not able to catalyze formation of Neu5Gc due to the inactive CMAHP enzyme, Neu5Gc is present in food and must be degraded. Also has ManNAc kinase activity.1 Publication

Catalytic activityi

ATP + N-acetyl-D-glucosamine = ADP + N-acetyl-D-glucosamine 6-phosphate.1 Publication

Pathwayi: N-acetylneuraminate degradation

This protein is involved in the pathway N-acetylneuraminate degradation, which is part of Amino-sugar metabolism.1 Publication
View all proteins of this organism that are known to be involved in the pathway N-acetylneuraminate degradation and in Amino-sugar metabolism.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei13ATP; via amide nitrogenCombined sources1 Publication1
Binding sitei36SubstrateCombined sources1 Publication1
Binding sitei107SubstrateCombined sources1 Publication1
Binding sitei127ATPCombined sources1 Publication1
Binding sitei152SubstrateCombined sources1 Publication1
Binding sitei214ATP; via carbonyl oxygenCombined sources1 Publication1
Binding sitei271ATPCombined sources1 Publication1
Binding sitei275ATPCombined sources1 Publication1

GO - Molecular functioni

  • ATP binding Source: UniProtKB-KW
  • N-acetylglucosamine kinase activity Source: UniProtKB

GO - Biological processi

Keywordsi

Molecular functionKinase, Transferase
LigandATP-binding, Nucleotide-binding

Enzyme and pathway databases

BRENDAi2.7.1.59 2681
ReactomeiR-HSA-446210 Synthesis of UDP-N-acetyl-glucosamine
UniPathwayi
UPA00629

Names & Taxonomyi

Protein namesi
Recommended name:
N-acetyl-D-glucosamine kinase (EC:2.7.1.59)
Short name:
N-acetylglucosamine kinase
Alternative name(s):
GlcNAc kinase
Gene namesi
Name:NAGK
OrganismiHomo sapiens (Human)
Taxonomic identifieri9606 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaeHomo
Proteomesi
  • UP000005640 Componenti: Chromosome 2

Organism-specific databases

EuPathDBiHostDB:ENSG00000124357.12
HGNCiHGNC:17174 NAGK
MIMi606828 gene
neXtProtiNX_Q9UJ70

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Pathology & Biotechi

Organism-specific databases

DisGeNETi55577
OpenTargetsiENSG00000124357
PharmGKBiPA31436

Chemistry databases

DrugBankiDB00141 N-Acetyl-D-glucosamine

Polymorphism and mutation databases

BioMutaiNAGK
DMDMi24638065

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Initiator methionineiRemovedCombined sources1 Publication
ChainiPRO_00000966962 – 344N-acetyl-D-glucosamine kinaseAdd BLAST343

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei2N-acetylalanineCombined sources1
Modified residuei76PhosphoserineCombined sources1
Modified residuei205Phosphotyrosine1 Publication1

Keywords - PTMi

Acetylation, Phosphoprotein

Proteomic databases

EPDiQ9UJ70
PaxDbiQ9UJ70
PeptideAtlasiQ9UJ70
PRIDEiQ9UJ70
ProteomicsDBi84593

2D gel databases

OGPiQ9UJ70

PTM databases

iPTMnetiQ9UJ70
PhosphoSitePlusiQ9UJ70
SwissPalmiQ9UJ70

Expressioni

Tissue specificityi

Ubiquitous.1 Publication

Gene expression databases

BgeeiENSG00000124357 Expressed in 221 organ(s), highest expression level in lower esophagus mucosa
CleanExiHS_NAGK
ExpressionAtlasiQ9UJ70 baseline and differential
GenevisibleiQ9UJ70 HS

Organism-specific databases

HPAiHPA035206
HPA035207

Interactioni

Subunit structurei

Homodimer.1 Publication

Binary interactionsi

Protein-protein interaction databases

BioGridi120728, 96 interactors
IntActiQ9UJ70, 39 interactors
MINTiQ9UJ70
STRINGi9606.ENSP00000389087

Structurei

Secondary structure

1344
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

ProteinModelPortaliQ9UJ70
SMRiQ9UJ70
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiQ9UJ70

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni129 – 130Substrate bindingCombined sources1 Publication2
Regioni145 – 147Substrate bindingCombined sources1 Publication3

Sequence similaritiesi

Phylogenomic databases

eggNOGiKOG1794 Eukaryota
COG2971 LUCA
GeneTreeiENSGT00510000047418
HOGENOMiHOG000007248
HOVERGENiHBG052570
InParanoidiQ9UJ70
KOiK00884
OMAiLLPMDYS
OrthoDBiEOG091G0LXR
PhylomeDBiQ9UJ70
TreeFamiTF314158

Family and domain databases

InterProiView protein in InterPro
IPR002731 ATPase_BadF
PfamiView protein in Pfam
PF01869 BcrAD_BadFG, 1 hit

Sequences (2+)i

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

This entry describes 2 isoformsi produced by alternative splicing. AlignAdd to basket

This entry has 2 described isoforms and 10 potential isoforms that are computationally mapped.iShow all

Isoform 1 (identifier: Q9UJ70-1) [UniParc]FASTAAdd to basket

This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide
        10         20         30         40         50
MAAIYGGVEG GGTRSEVLLV SEDGKILAEA DGLSTNHWLI GTDKCVERIN
60 70 80 90 100
EMVNRAKRKA GVDPLVPLRS LGLSLSGGDQ EDAGRILIEE LRDRFPYLSE
110 120 130 140 150
SYLITTDAAG SIATATPDGG VVLISGTGSN CRLINPDGSE SGCGGWGHMM
160 170 180 190 200
GDEGSAYWIA HQAVKIVFDS IDNLEAAPHD IGYVKQAMFH YFQVPDRLGI
210 220 230 240 250
LTHLYRDFDK CRFAGFCRKI AEGAQQGDPL SRYIFRKAGE MLGRHIVAVL
260 270 280 290 300
PEIDPVLFQG KIGLPILCVG SVWKSWELLK EGFLLALTQG REIQAQNFFS
310 320 330 340
SFTLMKLRHS SALGGASLGA RHIGHLLPMD YSANAIAFYS YTFS
Length:344
Mass (Da):37,376
Last modified:January 23, 2007 - v4
Checksum:iFCBB6B328EF4D515
GO
Isoform 2 (identifier: Q9UJ70-2) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     1-1: M → MRTRTGSQLAAREVTGSGAVPRQLEGRRCQAGRDANGGTSSDGSSSM

Show »
Length:390
Mass (Da):42,038
Checksum:i2B2DD636C8C35ADF
GO

Computationally mapped potential isoform sequencesi

There are 10 potential isoforms mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
C9JEV6C9JEV6_HUMAN
N-acetyl-D-glucosamine kinase
NAGK
293Annotation score:
H7C3G9H7C3G9_HUMAN
N-acetyl-D-glucosamine kinase
NAGK
340Annotation score:
H0YC94H0YC94_HUMAN
N-acetyl-D-glucosamine kinase
NAGK
136Annotation score:
H0YEB7H0YEB7_HUMAN
N-acetyl-D-glucosamine kinase
NAGK
182Annotation score:
H7C1L7H7C1L7_HUMAN
N-acetyl-D-glucosamine kinase
NAGK
159Annotation score:
C9JMR7C9JMR7_HUMAN
N-acetyl-D-glucosamine kinase
NAGK
59Annotation score:
H7C286H7C286_HUMAN
N-acetyl-D-glucosamine kinase
NAGK
196Annotation score:
H0YF44H0YF44_HUMAN
N-acetyl-D-glucosamine kinase
NAGK
109Annotation score:
H0YE82H0YE82_HUMAN
N-acetyl-D-glucosamine kinase
NAGK
84Annotation score:
E9PPU6E9PPU6_HUMAN
N-acetyl-D-glucosamine kinase
NAGK
94Annotation score:

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sequence conflicti70S → I in CAB61848 (PubMed:10824116).Curated1
Sequence conflicti121V → I in CAB61848 (PubMed:10824116).Curated1
Sequence conflicti211C → Y in BAD96365 (Ref. 4) Curated1
Sequence conflicti286A → V in BAA91923 (PubMed:14702039).Curated1
Sequence conflicti324G → R in BAA91923 (PubMed:14702039).Curated1

Natural variant

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Natural variantiVAR_02976338W → R1 PublicationCorresponds to variant dbSNP:rs17856147Ensembl.1
Natural variantiVAR_02976460A → V1 PublicationCorresponds to variant dbSNP:rs17849984Ensembl.1

Alternative sequence

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Alternative sequenceiVSP_0445861M → MRTRTGSQLAAREVTGSGAV PRQLEGRRCQAGRDANGGTS SDGSSSM in isoform 2. 1 Publication1

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AJ242910 mRNA Translation: CAB61848.1
AK001812 mRNA Translation: BAA91923.1
AK297224 mRNA Translation: BAG59707.1
CR457271 mRNA Translation: CAG33552.1
AK222645 mRNA Translation: BAD96365.1
AC007881 Genomic DNA Translation: AAY14748.1
CH471053 Genomic DNA Translation: EAW99780.1
BC001029 mRNA Translation: AAH01029.1
BC005371 mRNA Translation: AAH05371.1
CCDSiCCDS33220.2 [Q9UJ70-2]
RefSeqiNP_060037.3, NM_017567.4 [Q9UJ70-2]
UniGeneiHs.7036

Genome annotation databases

EnsembliENST00000244204; ENSP00000244204; ENSG00000124357 [Q9UJ70-1]
ENST00000455662; ENSP00000389087; ENSG00000124357 [Q9UJ70-2]
ENST00000613852; ENSP00000477639; ENSG00000124357 [Q9UJ70-2]
GeneIDi55577
KEGGihsa:55577
UCSCiuc002shp.4 human [Q9UJ70-1]

Keywords - Coding sequence diversityi

Alternative splicing, Polymorphism

Similar proteinsi

Entry informationi

Entry nameiNAGK_HUMAN
AccessioniPrimary (citable) accession number: Q9UJ70
Secondary accession number(s): B4DLZ5
, Q53HD5, Q6IA84, Q9BS29, Q9BVP0, Q9NV37
Entry historyiIntegrated into UniProtKB/Swiss-Prot: November 1, 2002
Last sequence update: January 23, 2007
Last modified: September 12, 2018
This is version 162 of the entry and version 4 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Direct protein sequencing, Reference proteome
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

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