P17710 (HXK1_MOUSE) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 29, 2013.
Version 134.
History...
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Hexokinase-1 EC=2.7.1.1 Alternative name(s): Hexokinase type I Short name=HK I Hexokinase, tumor isozyme | ||
| Gene names |
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| Organism | Mus musculus (Mouse) [Reference proteome] | ||
| Taxonomic identifier | 10090 [NCBI] | ||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Sciurognathi › Muroidea › Muridae › Murinae › Mus › Mus![]() |
Protein attributes
| Sequence length | 974 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Catalytic activity | ATP + D-hexose = ADP + D-hexose 6-phosphate. |
| Enzyme regulation | Hexokinase is an allosteric enzyme inhibited by its product Glc-6-P. |
| Pathway | |
| Subunit structure | Monomer. |
| Subcellular location | Isoform HK1: Mitochondrion outer membrane; Peripheral membrane protein Ref.5. Isoform HK1-SC: Membrane. Note: Isoform HK1-SC is an integral membrane protein. Ref.5 |
| Tissue specificity | In rapidly growing tumor cells exhibiting high glucose catabolic rates, isoform HK1 is markedly elevated. Isoform HK1-SA, isoform HK1-SB and isoform HK1-SC are found only in spermatogenic cells. Isoform HK1-SC is detected in round spermatids, condensing spermatids and mature sperm where it is found in the head membranes, mitochondria of the midpiece and the fibrous sheath of the flagellum. |
| Developmental stage | Isoform HK1-SA is first expressed during meiosis and continues to be present in postmeiotic germ cells while isoform HK1-SB is present only in postmeiotic germ cells. Ref.2 Ref.5 |
| Domain | The N- and C-terminal halves of this hexokinase show extensive sequence similarity to each other. The catalytic activity is associated with the C-terminus while regulatory function is associated with the N-terminus. Each domain can bind a single glucose and Gluc-6-P molecule By similarity. |
| Post-translational modification | |
| Miscellaneous | In vertebrates there are four major glucose-phosphorylating isoenzymes, designated hexokinase I, II, III and IV (glucokinase). |
| Sequence similarities | Belongs to the hexokinase family. |
Ontologies
Alternative products
| This entry describes 4 isoforms produced by alternative splicing and alternative initiation. [Align] [Select] | ||||||
| Isoform HK1-SA (identifier: P17710-1) 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. | ||||||
| Isoform HK1-SB (identifier: P17710-2) The sequence of this isoform differs from the canonical sequence as follows: 1-52: Missing. 400-400: T → TGWELSPDRRWYQAYMRCTQDTHR | ||||||
| Note: Produced by alternative splicing and alternative initiation at Met-53 of isoform HK1-SA. | ||||||
| Isoform HK1 (identifier: P17710-3) The sequence of this isoform differs from the canonical sequence as follows: 1-76: MGWGAPLLSR...PKIRPPLTEE → MIAAQLLAYYFTELKDDQVK | ||||||
| Isoform HK1-SC (identifier: P17710-4) The sequence of this isoform differs from the canonical sequence as follows: 1-52: Missing. | ||||||
| Note: Produced by alternative initiation at Met-53 of isoform HK1-SA. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 974 | 974 | Hexokinase-1 | PRO_0000013399 | |||||
Regions | |||||||||
| Nucleotide binding | 140 – 145 | 6 | ATP 1 Potential | ||||||
| Nucleotide binding | 481 – 482 | 2 | ATP 1 By similarity | ||||||
| Nucleotide binding | 588 – 593 | 6 | ATP 2 By similarity | ||||||
| Nucleotide binding | 803 – 804 | 2 | ATP 2 By similarity | ||||||
| Nucleotide binding | 840 – 844 | 5 | ATP 2 By similarity | ||||||
| Nucleotide binding | 919 – 923 | 5 | ATP 2 By similarity | ||||||
| Region | 1 – 52 | 52 | Hydrophobic | ||||||
| Region | 53 – 531 | 479 | Regulatory | ||||||
| Region | 140 – 144 | 5 | Glucose-6-phosphate 1 binding By similarity | ||||||
| Region | 228 – 229 | 2 | Substrate 1 binding By similarity | ||||||
| Region | 264 – 265 | 2 | Substrate 1 binding By similarity | ||||||
| Region | 347 – 350 | 4 | Substrate 1 binding By similarity | ||||||
| Region | 469 – 471 | 3 | Glucose-6-phosphate 1 binding By similarity | ||||||
| Region | 532 – 974 | 443 | Catalytic | ||||||
| Region | 588 – 592 | 5 | Glucose-6-phosphate 2 binding By similarity | ||||||
| Region | 659 – 660 | 2 | Substrate 2 binding By similarity | ||||||
| Region | 676 – 677 | 2 | Substrate 2 binding By similarity | ||||||
| Region | 712 – 713 | 2 | Substrate 2 binding By similarity | ||||||
| Region | 917 – 919 | 3 | Glucose-6-phosphate 2 binding By similarity | ||||||
Sites | |||||||||
| Binding site | 86 | 1 | ATP 1 By similarity | ||||||
| Binding site | 211 | 1 | Substrate 1 By similarity | ||||||
| Binding site | 265 | 1 | Glucose-6-phosphate 1 By similarity | ||||||
| Binding site | 288 | 1 | Glucose-6-phosphate 1 By similarity | ||||||
| Binding site | 291 | 1 | Substrate 1 By similarity | ||||||
| Binding site | 316 | 1 | Substrate 1 By similarity | ||||||
| Binding site | 505 | 1 | Glucose-6-phosphate 1 By similarity | ||||||
| Binding site | 659 | 1 | Glucose-6-phosphate 2 By similarity | ||||||
| Binding site | 713 | 1 | Glucose-6-phosphate 2 By similarity | ||||||
| Binding site | 736 | 1 | ATP 2 By similarity | ||||||
| Binding site | 736 | 1 | Glucose-6-phosphate 2 By similarity | ||||||
| Binding site | 739 | 1 | Substrate 2 By similarity | ||||||
| Binding site | 764 | 1 | Substrate 2 By similarity | ||||||
| Binding site | 798 | 1 | Substrate 2 By similarity | ||||||
| Binding site | 953 | 1 | Glucose-6-phosphate 2 By similarity | ||||||
Amino acid modifications | |||||||||
| Modified residue | 83 | 1 | Phosphotyrosine Ref.7 | ||||||
Natural variations | |||||||||
| Alternative sequence | 1 – 76 | 76 | MGWGA…PLTEE → MIAAQLLAYYFTELKDDQVK in isoform HK1. | VSP_007327 | |||||
| Alternative sequence | 1 – 52 | 52 | Missing in isoform HK1-SB and isoform HK1-SC. | VSP_018747 | |||||
| Alternative sequence | 400 | 1 | T → TGWELSPDRRWYQAYMRCTQ DTHR in isoform HK1-SB. | VSP_007328 | |||||
Experimental info | |||||||||
| Mutagenesis | 67 | 1 | P → A: Disrupts targeting to membrane; when associated with N-68; Q-70; P-73; A-74 and Q-75. Ref.6 | ||||||
| Mutagenesis | 68 | 1 | K → N: Disrupts targeting to membrane; when associated with A-67; Q-70; P-73; A-74 and Q-75. Ref.6 | ||||||
| Mutagenesis | 70 | 1 | R → Q: Disrupts targeting to membrane; when associated with A-67; N-68; P-73; A-74 and Q-75. Ref.6 | ||||||
| Mutagenesis | 73 | 1 | L → P: Disrupts targeting to membrane; when associated with A-67; N-68; Q-70; A-74 and Q-75. Ref.6 | ||||||
| Mutagenesis | 74 | 1 | T → A: Disrupts targeting to membrane; when associated with A-67; N-68; Q-70; P-73 and Q-75. Ref.6 | ||||||
| Mutagenesis | 75 | 1 | E → Q: Disrupts targeting to membrane; when associated with A-67; N-68; Q-70; P-73 and A-74. Ref.6 | ||||||
| Sequence conflict | 870 | 1 | D → S in AAA37804. Ref.1 | ||||||
| Sequence conflict | 899 | 1 | E → Q in AAB57759. Ref.2 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Glucose phosphorylation in tumor cells. Cloning, sequencing, and overexpression in active form of a full-length cDNA encoding a mitochondrial bindable form of hexokinase." Arora K.K., Fanciulli M., Pedersen P.L. J. Biol. Chem. 265:6481-6488(1990) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM HK1). |
| [2] | "Unique hexokinase messenger ribonucleic acids lacking the porin-binding domain are developmentally expressed in mouse spermatogenic cells." Mori C., Welch J.E., Fulcher K.D., O'Brien D.A., Eddy E.M. Biol. Reprod. 49:191-203(1993) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS HK1-SA; HK1-SB AND HK1-SC), DEVELOPMENTAL STAGE. Strain: CD-1. Tissue: Testis. |
| [3] | "Lineage-specific biology revealed by a finished genome assembly of the mouse." Church D.M., Goodstadt L., Hillier L.W., Zody M.C., Goldstein S., She X., Bult C.J., Agarwala R., Cherry J.L., DiCuccio M., Hlavina W., Kapustin Y., Meric P., Maglott D., Birtle Z., Marques A.C., Graves T., Zhou S. Ponting C.P.PLoS Biol. 7:E1000112-E1000112(2009) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: C57BL/6J. |
| [4] | Lubec G., Kang S.U. Submitted (APR-2007) to UniProtKB Cited for: PROTEIN SEQUENCE OF 81-98; 110-118; 134-147; 203-215; 219-229; 233-243; 300-310; 352-363; 372-409; 415-437; 438-452; 464-474; 489-518; 538-544; 549-595; 652-663; 681-694; 784-794; 800-819; 826-833; 842-884; 906-922 AND 942-974. Strain: C57BL/6. Tissue: Brain. |
| [5] | "Targeting of a germ cell-specific type 1 hexokinase lacking a porin-binding domain to the mitochondria as well as to the head and fibrous sheath of murine spermatozoa." Travis A.J., Foster J.A., Rosenbaum N.A., Visconti P.E., Gerton G.L., Kopf G.S., Moss S.B. Mol. Biol. Cell 9:263-276(1998) [PubMed] [Europe PMC] [Abstract] Cited for: SUBCELLULAR LOCATION, DEVELOPMENTAL STAGE, PHOSPHORYLATION. |
| [6] | "A novel NH(2)-terminal, nonhydrophobic motif targets a male germ cell-specific hexokinase to the endoplasmic reticulum and plasma membrane." Travis A.J., Sui D., Riedel K.D., Hofmann N.R., Moss S.B., Wilson J.E., Kopf G.S. J. Biol. Chem. 274:34467-34475(1999) [PubMed] [Europe PMC] [Abstract] Cited for: MUTAGENESIS OF PRO-67; LYS-68; ARG-70; LEU-73; THR-74 AND GLU-75. |
| [7] | "Large-scale identification and evolution indexing of tyrosine phosphorylation sites from murine brain." Ballif B.A., Carey G.R., Sunyaev S.R., Gygi S.P. J. Proteome Res. 7:311-318(2008) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT TYR-83, MASS SPECTROMETRY. Tissue: Brain. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | J05277 mRNA. Translation: AAA37804.1. L16948 mRNA. Translation: AAB57760.1. L16949 mRNA. Translation: AAB57759.1. L16950 mRNA. Translation: AAA53036.1. AC126428 Genomic DNA. No translation available. AC145297 Genomic DNA. No translation available. |
| IPI | IPI00283611. IPI00283612. IPI00468553. IPI00759938. |
| PIR | A35244. I49744. |
| UniGene | Mm.196605. |
3D structure databases | |
| ProteinModelPortal | P17710. |
| SMR | P17710. Positions 5-967. |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | P17710. 4 interactions. |
| MINT | MINT-1847872. |
PTM databases | |
| PhosphoSite | P17710. |
Proteomic databases | |
| PaxDb | P17710. |
| PRIDE | P17710. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENSMUST00000072357; ENSMUSP00000072195; ENSMUSG00000037012. ENSMUST00000099691; ENSMUSP00000097282; ENSMUSG00000037012. ENSMUST00000116238; ENSMUSP00000111946; ENSMUSG00000037012. |
| UCSC | uc007fgz.2. mouse. |
Organism-specific databases | |
| MGI | MGI:96103. Hk1. |
Phylogenomic databases | |
| eggNOG | COG5026. |
| GeneTree | ENSGT00390000017159. |
| HOGENOM | HOG000162671. |
| HOVERGEN | HBG005020. |
| InParanoid | P17710. |
| OMA | DFTKRGF. |
Enzyme and pathway databases | |
| SABIO-RK | P17710. |
| UniPathway | UPA00242. |
Gene expression databases | |
| ArrayExpress | P17710. |
| Bgee | P17710. |
| CleanEx | MM_HK1. |
| Genevestigator | P17710. |
| GermOnline | ENSMUSG00000037012. Mus musculus. |
Family and domain databases | |
| InterPro | IPR001312. Hexokinase. IPR022673. Hexokinase_C. IPR019807. Hexokinase_CS. IPR022672. Hexokinase_N. [Graphical view] |
| PANTHER | PTHR19443. PTHR19443. 1 hit. |
| Pfam | PF00349. Hexokinase_1. 2 hits. PF03727. Hexokinase_2. 2 hits. [Graphical view] |
| PRINTS | PR00475. HEXOKINASE. |
| PROSITE | PS00378. HEXOKINASES. 2 hits. [Graphical view] |
| ProtoNet | Search... |
Other | |
| SOURCE | Search... |
Entry information
| Entry name | HXK1_MOUSE | ||||||||
| Accession | Primary (citable) accession number: P17710 Secondary accession number(s): E9PXQ3 Q64479 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
Relevant documents
| MGD cross-references Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot |
| PATHWAY comments Index of metabolic and biosynthesis pathways |
| SIMILARITY comments Index of protein domains and families |

Clusters with
