General function:

Involved in inositol or phosphatidylinositol phosphatase activity

Specific function:

Converts adenosine 3'-phosphate 5'-phosphosulfate (PAPS) to adenosine 5'-phosphosulfate (APS) and 3'(2')-phosphoadenosine 5'- phosphate (PAP) to AMP. Has 1000-fold lower activity towards inositol 1,4-bisphosphate (Ins(1,4)P2) and inositol 1,3,4-trisphosphate (Ins(1,3,4)P3), but does not hydrolyze Ins(1)P, Ins(3,4)P2, Ins(1,3,4,5)P4 or InsP6.

Gene Name:

BPNT1

Uniprot ID:

O95861

Molecular weight:

33392.035

General function:

Involved in inositol or phosphatidylinositol phosphatase activity

Specific function:

Not Available

Gene Name:

INPP1

Uniprot ID:

P49441

Molecular weight:

43997.62

References

1. Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [PubMed:11752352 ]
2. Li Z, Stieglitz KA, Shrout AL, Wei Y, Weis RM, Stec B, Roberts MF: Mobile loop mutations in an archaeal inositol monophosphatase: modulating three-metal ion assisted catalysis and lithium inhibition. Protein Sci. 2010 Feb;19(2):309-18. doi: 10.1002/pro.315. [PubMed:20027624 ]

General function:

Involved in inositol or phosphatidylinositol phosphatase activity

Specific function:

Responsible for the provision of inositol required for synthesis of phosphatidylinositol and polyphosphoinositides and has been implicated as the pharmacological target for lithium action in brain. Can use myo-inositol monophosphates, myo-inositol 1,3-diphosphate, myo-inositol 1,4-diphosphate, scyllo-inositol-phosphate, glucose-1-phosphate, glucose-6-phosphate, fructose-1-phosphate, beta-glycerophosphate, and 2'-AMP as substrates.

Gene Name:

IMPA1

Uniprot ID:

P29218

Molecular weight:

36694.375

References

1. Sarkar S, Rubinsztein DC: Inositol and IP3 levels regulate autophagy: biology and therapeutic speculations. Autophagy. 2006 Apr-Jun;2(2):132-4. Epub 2006 Apr 6. [PubMed:16874097 ]
2. Trinquet E, Fink M, Bazin H, Grillet F, Maurin F, Bourrier E, Ansanay H, Leroy C, Michaud A, Durroux T, Maurel D, Malhaire F, Goudet C, Pin JP, Naval M, Hernout O, Chretien F, Chapleur Y, Mathis G: D-myo-inositol 1-phosphate as a surrogate of D-myo-inositol 1,4,5-tris phosphate to monitor G protein-coupled receptor activation. Anal Biochem. 2006 Nov 1;358(1):126-35. Epub 2006 Aug 30. [PubMed:16965760 ]
3. Ohnishi T, Ohba H, Seo KC, Im J, Sato Y, Iwayama Y, Furuichi T, Chung SK, Yoshikawa T: Spatial expression patterns and biochemical properties distinguish a second myo-inositol monophosphatase IMPA2 from IMPA1. J Biol Chem. 2007 Jan 5;282(1):637-46. Epub 2006 Oct 26. [PubMed:17068342 ]
4. Tanizawa Y, Kuhara A, Inada H, Kodama E, Mizuno T, Mori I: Inositol monophosphatase regulates localization of synaptic components and behavior in the mature nervous system of C. elegans. Genes Dev. 2006 Dec 1;20(23):3296-310. [PubMed:17158747 ]
5. Ohnishi T, Yamada K, Ohba H, Iwayama Y, Toyota T, Hattori E, Inada T, Kunugi H, Tatsumi M, Ozaki N, Iwata N, Sakamoto K, Iijima Y, Iwata Y, Tsuchiya KJ, Sugihara G, Nanko S, Osumi N, Detera-Wadleigh SD, Kato T, Yoshikawa T: A promoter haplotype of the inositol monophosphatase 2 gene (IMPA2) at 18p11.2 confers a possible risk for bipolar disorder by enhancing transcription. Neuropsychopharmacology. 2007 Aug;32(8):1727-37. Epub 2007 Jan 24. [PubMed:17251911 ]

General function:

Involved in inositol or phosphatidylinositol phosphatase activity

Specific function:

Can use myo-inositol monophosphates, scylloinositol 1,4-diphosphate, glucose-1-phosphate, beta-glycerophosphate, and 2'-AMP as substrates. Has been implicated as the pharmacological target for lithium Li(+) action in brain.

Gene Name:

IMPA2

Uniprot ID:

O14732

Molecular weight:

31320.525

References

1. Cryns K, Shamir A, Shapiro J, Daneels G, Goris I, Van Craenendonck H, Straetemans R, Belmaker RH, Agam G, Moechars D, Steckler T: Lack of lithium-like behavioral and molecular effects in IMPA2 knockout mice. Neuropsychopharmacology. 2007 Apr;32(4):881-91. Epub 2006 Jul 12. [PubMed:16841073 ]
2. Ohnishi T, Ohba H, Seo KC, Im J, Sato Y, Iwayama Y, Furuichi T, Chung SK, Yoshikawa T: Spatial expression patterns and biochemical properties distinguish a second myo-inositol monophosphatase IMPA2 from IMPA1. J Biol Chem. 2007 Jan 5;282(1):637-46. Epub 2006 Oct 26. [PubMed:17068342 ]
3. Ohnishi T, Yamada K, Ohba H, Iwayama Y, Toyota T, Hattori E, Inada T, Kunugi H, Tatsumi M, Ozaki N, Iwata N, Sakamoto K, Iijima Y, Iwata Y, Tsuchiya KJ, Sugihara G, Nanko S, Osumi N, Detera-Wadleigh SD, Kato T, Yoshikawa T: A promoter haplotype of the inositol monophosphatase 2 gene (IMPA2) at 18p11.2 confers a possible risk for bipolar disorder by enhancing transcription. Neuropsychopharmacology. 2007 Aug;32(8):1727-37. Epub 2007 Jan 24. [PubMed:17251911 ]

General function:

Involved in protein kinase activity

Specific function:

Participates in the Wnt signaling pathway. Implicated in the hormonal control of several regulatory proteins including glycogen synthase, MYB and the transcription factor JUN. Phosphorylates JUN at sites proximal to its DNA-binding domain, thereby reducing its affinity for DNA. Phosphorylates MUC1 in breast cancer cells, and decreases the interaction of MUC1 with CTNNB1/beta-catenin. Phosphorylates CTNNB1/beta-catenin. Phosphorylates SNAI1

Gene Name:

GSK3B

Uniprot ID:

P49841

Molecular weight:

46743.9

References

1. Borsotto M, Cavarec L, Bouillot M, Romey G, Macciardi F, Delaye A, Nasroune M, Bastucci M, Sambucy JL, Luan JJ, Charpagne A, Jouet V, Leger R, Lazdunski M, Cohen D, Chumakov I: PP2A-Bgamma subunit and KCNQ2 K+ channels in bipolar disorder. Pharmacogenomics J. 2007 Apr;7(2):123-32. Epub 2006 May 30. [PubMed:16733521 ]
2. Adli M, Hollinde DL, Stamm T, Wiethoff K, Tsahuridu M, Kirchheiner J, Heinz A, Bauer M: Response to lithium augmentation in depression is associated with the glycogen synthase kinase 3-beta -50T/C single nucleotide polymorphism. Biol Psychiatry. 2007 Dec 1;62(11):1295-302. Epub 2007 Jul 12. [PubMed:17628506 ]
3. O'Brien WT, Klein PS: Validating GSK3 as an in vivo target of lithium action. Biochem Soc Trans. 2009 Oct;37(Pt 5):1133-8. doi: 10.1042/BST0371133. [PubMed:19754466 ]

General function:

Involved in binding

Specific function:

Involved in signal transduction through the Wnt pathway. Nuclear beta-catenin it involved in transcriptional regulation by association with transcription factors of the TCF/LEF family

Gene Name:

CTNNB1

Uniprot ID:

P35222

Molecular weight:

85495.9

General function:

Amino acid transport and metabolism

Specific function:

Functions as a sodium-dependent amino acid transporter. Mediates the saturable, pH-sensitive and electrogenic cotransport of glutamine and sodium ions with a stoichiometry of 1:1. May also transport small zwitterionic and aliphatic amino acids with a lower affinity. May supply glutamatergic and GABAergic neurons with glutamine which is required for the synthesis of the neurotransmitters glutamate and GABA

Gene Name:

SLC38A1

Uniprot ID:

Q9H2H9

Molecular weight:

54047.0

General function:

Involved in transmembrane transport

Specific function:

Transports Ca(2+) in exchange for either Li(+) or Na(+), explaining how Li(+) catalyzes Ca(2+) exchange. In contrast to other members of the family its function is independent of K(+)

Gene Name:

SLC24A6

Uniprot ID:

Q6J4K2

Molecular weight:

64230.8