You are using an unsupported browser. Please upgrade your browser to a newer version to get the best experience on Human Metabolome Database.
Identification
HMDB Protein ID HMDBP00376
Secondary Accession Numbers
  • 5613
Name Glucose-6-phosphatase
Synonyms
  1. G-6-Pase
  2. G6Pase
  3. G6Pase-alpha
  4. Glucose-6-phosphatase alpha
Gene Name G6PC
Protein Type Enzyme
Biological Properties
General Function Involved in catalytic activity
Specific Function Hydrolyzes glucose-6-phosphate to glucose in the endoplasmic reticulum. Forms with the glucose-6-phosphate transporter (SLC37A4/G6PT) the complex responsible for glucose production through glycogenolysis and gluconeogenesis. Hence, it is the key enzyme in homeostatic regulation of blood glucose levels.
Pathways
  • Adipocytokine signaling pathway
  • Carbohydrate digestion and absorption
  • Congenital disorder of glycosylation CDG-IId
  • Fanconi-bickel syndrome
  • Fructose-1,6-diphosphatase deficiency
  • Galactose metabolism
  • Galactose Metabolism
  • Galactosemia
  • gluconeogenesis
  • Gluconeogenesis
  • GLUT-1 deficiency syndrome
  • Glycogen Storage Disease Type 1A (GSD1A) or Von Gierke Disease
  • Glycogenosis, Type IA. Von gierke disease
  • Glycogenosis, Type IB
  • Glycogenosis, Type IC
  • Glycogenosis, Type VII. Tarui disease
  • Glycolysis
  • Glycolysis / Gluconeogenesis
  • Insulin signaling pathway
  • Lactose Synthesis
  • Phosphoenolpyruvate carboxykinase deficiency 1 (PEPCK1)
  • PI3K-Akt signaling pathway
  • Starch and sucrose metabolism
  • Triosephosphate isomerase
Reactions
Glucose 6-phosphate + Water → D-Glucose + Phosphate details
Glucose 6-phosphate + Water → alpha-D-Glucose + Phosphate details
GO Classification
Biological Process
small molecule metabolic process
glucose transport
glucose 6-phosphate metabolic process
glucose-6-phosphate transport
urate metabolic process
glycogen metabolic process
gluconeogenesis
steroid metabolic process
glucose homeostasis
cholesterol homeostasis
multicellular organism growth
glycogen catabolic process
regulation of gene expression
triglyceride metabolic process
transmembrane transport
Cellular Component
integral to endoplasmic reticulum membrane
Component
membrane
cell part
Function
catalytic activity
Molecular Function
phosphotransferase activity, alcohol group as acceptor
glucose-6-phosphatase activity
phosphate ion binding
Cellular Location
  1. Endoplasmic reticulum membrane
  2. Multi-pass membrane protein
Gene Properties
Chromosome Location 17
Locus 17q21
SNPs G6PC
Gene Sequence
>1074 bp
ATGGAGGAAGGAATGAATGTTCTCCATGACTTTGGGATCCAGTCAACACATTACCTCCAG
GTGAATTACCAAGACTCCCAGGACTGGTTCATCTTGGTGTCCGTGATCGCAGACCTCAGG
AATGCCTTCTACGTCCTCTTCCCCATCTGGTTCCATCTTCAGGAAGCTGTGGGCATTAAA
CTCCTTTGGGTAGCTGTGATTGGAGACTGGCTCAACCTCGTCTTTAAGTGGATTCTCTTT
GGACAGCGTCCATACTGGTGGGTTTTGGATACTGACTACTACAGCAACACTTCCGTGCCC
CTGATAAAGCAGTTCCCTGTAACCTGTGAGACTGGACCAGGGAGCCCCTCTGGCCATGCC
ATGGGCACAGCAGGTGTATACTACGTGATGGTCACATCTACTCTTTCCATCTTTCAGGGA
AAGATAAAGCCGACCTACAGATTTCGGTGCTTGAATGTCATTTTGTGGTTGGGATTCTGG
GCTGTGCAGCTGAATGTCTGTCTGTCACGAATCTACCTTGCTGCTCATTTTCCTCATCAA
GTTGTTGCTGGAGTCCTGTCAGGCATTGCTGTTGCAGAAACTTTCAGCCACATCCACAGC
ATCTATAATGCCAGCCTCAAGAAATATTTTCTCATTACCTTCTTCCTGTTCAGCTTCGCC
ATCGGATTTTATCTGCTGCTCAAGGGACTGGGTGTAGACCTCCTGTGGACTCTGGAGAAA
GCCCAGAGGTGGTGCGAGCAGCCAGAATGGGTCCACATTGACACCACACCCTTTGCCAGC
CTCCTCAAGAACCTGGGCACGCTCTTTGGCCTGGGGCTGGCTCTCAACTCCAGCATGTAC
AGGGAGAGCTGCAAGGGGAAACTCAGCAAGTGGCTCCCATTCCGCCTCAGCTCTATTGTA
GCCTCCCTCGTCCTCCTGCACGTCTTTGACTCCTTGAAACCCCCATCCCAAGTCGAGCTG
GTCTTCTACGTCTTGTCCTTCTGCAAGAGTGCGGTAGTGCCCCTGGCATCCGTCAGTGTC
ATCCCCTACTGCCTCGCCCAGGTCCTGGGCCAGCCGCACAAGAAGTCGTTGTAA
Protein Properties
Number of Residues 357
Molecular Weight 40483.21
Theoretical pI 8.476
Pfam Domain Function
Signals Not Available
Transmembrane Regions Not Available
Protein Sequence
>Glucose-6-phosphatase
MEEGMNVLHDFGIQSTHYLQVNYQDSQDWFILVSVIADLRNAFYVLFPIWFHLQEAVGIK
LLWVAVIGDWLNLVFKWILFGQRPYWWVLDTDYYSNTSVPLIKQFPVTCETGPGSPSGHA
MGTAGVYYVMVTSTLSIFQGKIKPTYRFRCLNVILWLGFWAVQLNVCLSRIYLAAHFPHQ
VVAGVLSGIAVAETFSHIHSIYNASLKKYFLITFFLFSFAIGFYLLLKGLGVDLLWTLEK
AQRWCEQPEWVHIDTTPFASLLKNLGTLFGLGLALNSSMYRESCKGKLSKWLPFRLSSIV
ASLVLLHVFDSLKPPSQVELVFYVLSFCKSAVVPLASVSVIPYCLAQVLGQPHKKSL
GenBank ID Protein 189054175
UniProtKB/Swiss-Prot ID P35575
UniProtKB/Swiss-Prot Entry Name G6PC_HUMAN
PDB IDs Not Available
GenBank Gene ID AK313982
GeneCard ID G6PC
GenAtlas ID G6PC
HGNC ID HGNC:4056
References
General References
  1. Chen R, Jiang X, Sun D, Han G, Wang F, Ye M, Wang L, Zou H: Glycoproteomics analysis of human liver tissue by combination of multiple enzyme digestion and hydrazide chemistry. J Proteome Res. 2009 Feb;8(2):651-61. doi: 10.1021/pr8008012. [PubMed:19159218 ]
  2. Ota T, Suzuki Y, Nishikawa T, Otsuki T, Sugiyama T, Irie R, Wakamatsu A, Hayashi K, Sato H, Nagai K, Kimura K, Makita H, Sekine M, Obayashi M, Nishi T, Shibahara T, Tanaka T, Ishii S, Yamamoto J, Saito K, Kawai Y, Isono Y, Nakamura Y, Nagahari K, Murakami K, Yasuda T, Iwayanagi T, Wagatsuma M, Shiratori A, Sudo H, Hosoiri T, Kaku Y, Kodaira H, Kondo H, Sugawara M, Takahashi M, Kanda K, Yokoi T, Furuya T, Kikkawa E, Omura Y, Abe K, Kamihara K, Katsuta N, Sato K, Tanikawa M, Yamazaki M, Ninomiya K, Ishibashi T, Yamashita H, Murakawa K, Fujimori K, Tanai H, Kimata M, Watanabe M, Hiraoka S, Chiba Y, Ishida S, Ono Y, Takiguchi S, Watanabe S, Yosida M, Hotuta T, Kusano J, Kanehori K, Takahashi-Fujii A, Hara H, Tanase TO, Nomura Y, Togiya S, Komai F, Hara R, Takeuchi K, Arita M, Imose N, Musashino K, Yuuki H, Oshima A, Sasaki N, Aotsuka S, Yoshikawa Y, Matsunawa H, Ichihara T, Shiohata N, Sano S, Moriya S, Momiyama H, Satoh N, Takami S, Terashima Y, Suzuki O, Nakagawa S, Senoh A, Mizoguchi H, Goto Y, Shimizu F, Wakebe H, Hishigaki H, Watanabe T, Sugiyama A, Takemoto M, Kawakami B, Yamazaki M, Watanabe K, Kumagai A, Itakura S, Fukuzumi Y, Fujimori Y, Komiyama M, Tashiro H, Tanigami A, Fujiwara T, Ono T, Yamada K, Fujii Y, Ozaki K, Hirao M, Ohmori Y, Kawabata A, Hikiji T, Kobatake N, Inagaki H, Ikema Y, Okamoto S, Okitani R, Kawakami T, Noguchi S, Itoh T, Shigeta K, Senba T, Matsumura K, Nakajima Y, Mizuno T, Morinaga M, Sasaki M, Togashi T, Oyama M, Hata H, Watanabe M, Komatsu T, Mizushima-Sugano J, Satoh T, Shirai Y, Takahashi Y, Nakagawa K, Okumura K, Nagase T, Nomura N, Kikuchi H, Masuho Y, Yamashita R, Nakai K, Yada T, Nakamura Y, Ohara O, Isogai T, Sugano S: Complete sequencing and characterization of 21,243 full-length human cDNAs. Nat Genet. 2004 Jan;36(1):40-5. Epub 2003 Dec 21. [PubMed:14702039 ]
  3. Gerhard DS, Wagner L, Feingold EA, Shenmen CM, Grouse LH, Schuler G, Klein SL, Old S, Rasooly R, Good P, Guyer M, Peck AM, Derge JG, Lipman D, Collins FS, Jang W, Sherry S, Feolo M, Misquitta L, Lee E, Rotmistrovsky K, Greenhut SF, Schaefer CF, Buetow K, Bonner TI, Haussler D, Kent J, Kiekhaus M, Furey T, Brent M, Prange C, Schreiber K, Shapiro N, Bhat NK, Hopkins RF, Hsie F, Driscoll T, Soares MB, Casavant TL, Scheetz TE, Brown-stein MJ, Usdin TB, Toshiyuki S, Carninci P, Piao Y, Dudekula DB, Ko MS, Kawakami K, Suzuki Y, Sugano S, Gruber CE, Smith MR, Simmons B, Moore T, Waterman R, Johnson SL, Ruan Y, Wei CL, Mathavan S, Gunaratne PH, Wu J, Garcia AM, Hulyk SW, Fuh E, Yuan Y, Sneed A, Kowis C, Hodgson A, Muzny DM, McPherson J, Gibbs RA, Fahey J, Helton E, Ketteman M, Madan A, Rodrigues S, Sanchez A, Whiting M, Madari A, Young AC, Wetherby KD, Granite SJ, Kwong PN, Brinkley CP, Pearson RL, Bouffard GG, Blakesly RW, Green ED, Dickson MC, Rodriguez AC, Grimwood J, Schmutz J, Myers RM, Butterfield YS, Griffith M, Griffith OL, Krzywinski MI, Liao N, Morin R, Palmquist D, Petrescu AS, Skalska U, Smailus DE, Stott JM, Schnerch A, Schein JE, Jones SJ, Holt RA, Baross A, Marra MA, Clifton S, Makowski KA, Bosak S, Malek J: The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC). Genome Res. 2004 Oct;14(10B):2121-7. [PubMed:15489334 ]
  4. Sjoblom T, Jones S, Wood LD, Parsons DW, Lin J, Barber TD, Mandelker D, Leary RJ, Ptak J, Silliman N, Szabo S, Buckhaults P, Farrell C, Meeh P, Markowitz SD, Willis J, Dawson D, Willson JK, Gazdar AF, Hartigan J, Wu L, Liu C, Parmigiani G, Park BH, Bachman KE, Papadopoulos N, Vogelstein B, Kinzler KW, Velculescu VE: The consensus coding sequences of human breast and colorectal cancers. Science. 2006 Oct 13;314(5797):268-74. Epub 2006 Sep 7. [PubMed:16959974 ]
  5. Lei KJ, Shelly LL, Pan CJ, Sidbury JB, Chou JY: Mutations in the glucose-6-phosphatase gene that cause glycogen storage disease type 1a. Science. 1993 Oct 22;262(5133):580-3. [PubMed:8211187 ]
  6. Pan CJ, Lei KJ, Chou JY: Asparagine-linked oligosaccharides are localized to a luminal hydrophilic loop in human glucose-6-phosphatase. J Biol Chem. 1998 Aug 21;273(34):21658-62. [PubMed:9705299 ]
  7. Ghosh A, Shieh JJ, Pan CJ, Sun MS, Chou JY: The catalytic center of glucose-6-phosphatase. HIS176 is the nucleophile forming the phosphohistidine-enzyme intermediate during catalysis. J Biol Chem. 2002 Sep 6;277(36):32837-42. Epub 2002 Jul 1. [PubMed:12093795 ]
  8. Lei KJ, Chen YT, Chen H, Wong LJ, Liu JL, McConkie-Rosell A, Van Hove JL, Ou HC, Yeh NJ, Pan LY, et al.: Genetic basis of glycogen storage disease type 1a: prevalent mutations at the glucose-6-phosphatase locus. Am J Hum Genet. 1995 Oct;57(4):766-71. [PubMed:7573034 ]
  9. Parvari R, Moses S, Hershkovitz E, Carmi R, Bashan N: Characterization of the mutations in the glucose-6-phosphatase gene in Israeli patients with glycogen storage disease type 1a: R83C in six Jews and a novel V166G mutation in a Muslim Arab. J Inherit Metab Dis. 1995;18(1):21-7. [PubMed:7623438 ]
  10. Hwu WL, Chuang SC, Tsai LP, Chang MH, Chuang SM, Wang TR: Glucose-6-phosphatase gene G327A mutation is common in Chinese patients with glycogen storage disease type Ia. Hum Mol Genet. 1995 Jun;4(6):1095-6. [PubMed:7655466 ]
  11. Lee WJ, Lee HM, Chi CS, Shu SG, Lin LY, Lin WH: Genetic analysis of the glucose-6-phosphatase mutation of type 1a glycogen storage disease in a Chinese family. Clin Genet. 1996 Oct;50(4):206-11. [PubMed:9001800 ]
  12. Chevalier-Porst F, Bozon D, Bonardot AM, Bruni N, Mithieux G, Mathieu M, Maire I: Mutation analysis in 24 French patients with glycogen storage disease type 1a. J Med Genet. 1996 May;33(5):358-60. [PubMed:8733042 ]
  13. Huner G, Podskarbi T, Schutz M, Baykal T, Sarbat G, Shin YS, Demirkol M: Molecular aspects of glycogen storage disease type Ia in Turkish patients: a novel mutation in the glucose-6-phosphatase gene. J Inherit Metab Dis. 1998 Jun;21(4):445-6. [PubMed:9700612 ]
  14. Sartorato EL, Reis FC, Norato DY, Hackel C: A novel mutation in a Brazilian patient with glycogen storage disease type 1a. J Inherit Metab Dis. 1998 Jun;21(4):447. [PubMed:9700613 ]
  15. Keller KM, Schutz M, Podskarbi T, Bindl L, Lentze MJ, Shin YS: A new mutation of the glucose-6-phosphatase gene in a 4-year-old girl with oligosymptomatic glycogen storage disease type 1a. J Pediatr. 1998 Feb;132(2):360-1. [PubMed:9506659 ]
  16. Rake JP, ten Berge AM, Verlind E, Visser G, Niezen-Koning KE, Buys CH, Smit GP, Scheffer H: Glycogen storage disease type Ia: four novel mutations (175delGG, R170X, G266V and V338F) identified. Mutations in brief no. 220. Online. Hum Mutat. 1999;13(2):173. [PubMed:10094563 ]
  17. Trioche P, Francoual J, Chalas J, Capel L, Bernard O, Labrune P: Identification of three novel mutations (Q54P, W70X and T108I) in the glucose-6-phosphatase gene of patients with glycogen storage disease type Ia. Mutation in brief no. 256. Online. Hum Mutat. 1999;14(1):91. [PubMed:10447271 ]
  18. Stroppiano M, Regis S, DiRocco M, Caroli F, Gandullia P, Gatti R: Mutations in the glucose-6-phosphatase gene of 53 Italian patients with glycogen storage disease type Ia. J Inherit Metab Dis. 1999 Feb;22(1):43-9. [PubMed:10070617 ]
  19. Akanuma J, Nishigaki T, Fujii K, Matsubara Y, Inui K, Takahashi K, Kure S, Suzuki Y, Ohura T, Miyabayashi S, Ogawa E, Iinuma K, Okada S, Narisawa K: Glycogen storage disease type Ia: molecular diagnosis of 51 Japanese patients and characterization of splicing mutations by analysis of ectopically transcribed mRNA from lymphoblastoid cells. Am J Med Genet. 2000 Mar 13;91(2):107-12. [PubMed:10748407 ]
  20. Seydewitz HH, Matern D: Molecular genetic analysis of 40 patients with glycogen storage disease type Ia: 100% mutation detection rate and 5 novel mutations. Hum Mutat. 2000 Jan;15(1):115-6. [PubMed:10612834 ]
  21. Wu MC, Tsai FJ, Le CC, Lin SP, Wu JY: Identification of a novel missense mutation (T16A) in the glucose-6-phosphatase gene in a Taiwan Chinese patient with glycogen storage disease Ia (Von Gierke disease). Hum Mutat. 2000 Apr;15(4):390. [PubMed:10738005 ]
  22. Kozak L, Francova H, Hrabincova E, Stastna S, Peskova K, Elleder M: Identification of mutations in the glucose-6-phosphatase gene in Czech and Slovak patients with glycogen storage disease type ia, including novel mutations K76N, V166A and 540del5. Hum Mutat. 2000 Jul;16(1):89. [PubMed:10874313 ]
  23. Trioche P, Francoual J, Chalas J, Capel L, Lindenbaum A, Odievre M, Labrune P: Genetic heterogeneity of glycogen storage disease type Ia in France: a study of 48 patients. Hum Mutat. 2000 Nov;16(5):444. [PubMed:11058903 ]
  24. Wu MC, Tsai FJ, Lee CC, Tsai CH, Wu JY: A novel missense mutation (H119L) identified in a Taiwan Chinese family with glycogen storage disease Ia (Von Gierke disease). Hum Mutat. 2000 Nov;16(5):447. [PubMed:11058910 ]
  25. Matern D, Seydewitz HH, Bali D, Lang C, Chen YT: Glycogen storage disease type I: diagnosis and phenotype/genotype correlation. Eur J Pediatr. 2002 Oct;161 Suppl 1:S10-9. Epub 2002 Jul 27. [PubMed:12373566 ]
  26. Angaroni CJ, de Kremer RD, Argarana CE, Paschini-Capra AE, Giner-Ayala AN, Pezza RJ, Pan CJ, Chou JY: Glycogen storage disease type Ia in Argentina: two novel glucose-6-phosphatase mutations affecting protein stability. Mol Genet Metab. 2004 Nov;83(3):276-9. [PubMed:15542400 ]