6cmj

Human CAMKK2 with GSK650393Human CAMKK2 with GSK650393

Structural highlights

6cmj is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.4Å
Ligands:	, , , ,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

KKCC2_HUMAN Calcium/calmodulin-dependent protein kinase belonging to a proposed calcium-triggered signaling cascade involved in a number of cellular processes. Isoform 1, isoform 2 and isoform 3 phosphorylate CAMK1 and CAMK4. Isoform 3 phosphorylates CAMK1D. Isoform 4, isoform 5 and isoform 6 lacking part of the calmodulin-binding domain are inactive. Efficiently phosphorylates 5'-AMP-activated protein kinase (AMPK) trimer, including that consisting of PRKAA1, PRKAB1 and PRKAG1. This phosphorylation is stimulated in response to Ca(2+) signals (By similarity). Seems to be involved in hippocampal activation of CREB1 (By similarity). May play a role in neurite growth. Isoform 3 may promote neurite elongation, while isoform 1 may promoter neurite branching.^[1] ^[2] ^[3] ^[4]

Publication Abstract from PubMed

Hypothalamic CAMKK2 represents a potential mechanism for chemically affecting satiety and promoting weight loss in clinically obese patients. Single-digit nanomolar inhibitors of CAMKK2 were identified in three related ATP-competitive series. Limited optimization of kinase selectivity, solubility, and pharmacokinetic properties were undertaken on all three series, as SAR was often transferrable. Ultimately, a 2,4-diaryl 7-azaindole was optimized to afford a tool molecule that potently inhibits AMPK phosphorylation in a hypothalamus-derived cell line, is orally bioavailable, and crosses the blood-brain barrier. When dosed orally in rodents, compound 4t limited ghrelin-induced food intake.

An orally available, brain-penetrant CAMKK2 inhibitor reduces food intake in rodent model.,Price DJ, Drewry DH, Schaller LT, Thompson BD, Reid PR, Maloney PR, Liang X, Banker P, Buckholz RG, Selley PK, McDonald OB, Smith JL, Shearer TW, Cox RF, Williams SP, Reid RA, Tacconi S, Faggioni F, Piubelli C, Sartori I, Tessari M, Wang TY Bioorg Med Chem Lett. 2018 Apr 5. pii: S0960-894X(18)30223-3. doi:, 10.1016/j.bmcl.2018.03.034. PMID:29653895^[5]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Hsu LS, Chen GD, Lee LS, Chi CW, Cheng JF, Chen JY. Human Ca2+/calmodulin-dependent protein kinase kinase beta gene encodes multiple isoforms that display distinct kinase activity. J Biol Chem. 2001 Aug 17;276(33):31113-23. Epub 2001 Jun 6. PMID:11395482 doi:http://dx.doi.org/10.1074/jbc.M011720200
↑ Ishikawa Y, Tokumitsu H, Inuzuka H, Murata-Hori M, Hosoya H, Kobayashi R. Identification and characterization of novel components of a Ca2+/calmodulin-dependent protein kinase cascade in HeLa cells. FEBS Lett. 2003 Aug 28;550(1-3):57-63. PMID:12935886
↑ Hsu LS, Tsou AP, Chi CW, Lee CH, Chen JY. Cloning, expression and chromosomal localization of human Ca2+/calmodulin-dependent protein kinase kinase. J Biomed Sci. 1998;5(2):141-9. PMID:9662074
↑ Cao W, Sohail M, Liu G, Koumbadinga GA, Lobo VG, Xie J. Differential effects of PKA-controlled CaMKK2 variants on neuronal differentiation. RNA Biol. 2011 Nov-Dec;8(6):1061-72. doi: 10.4161/rna.8.6.16691. Epub 2011 Nov 1. PMID:21957496 doi:http://dx.doi.org/10.4161/rna.8.6.16691
↑ Price DJ, Drewry DH, Schaller LT, Thompson BD, Reid PR, Maloney PR, Liang X, Banker P, Buckholz RG, Selley PK, McDonald OB, Smith JL, Shearer TW, Cox RF, Williams SP, Reid RA, Tacconi S, Faggioni F, Piubelli C, Sartori I, Tessari M, Wang TY. An orally available, brain-penetrant CAMKK2 inhibitor reduces food intake in rodent model. Bioorg Med Chem Lett. 2018 Apr 5. pii: S0960-894X(18)30223-3. doi:, 10.1016/j.bmcl.2018.03.034. PMID:29653895 doi:http://dx.doi.org/10.1016/j.bmcl.2018.03.034

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OCA

[1] Hsu LS, Chen GD, Lee LS, Chi CW, Cheng JF, Chen JY. Human Ca2+/calmodulin-dependent protein kinase kinase beta gene encodes multiple isoforms that display distinct kinase activity. J Biol Chem. 2001 Aug 17;276(33):31113-23. Epub 2001 Jun 6. PMID:11395482 doi:http://dx.doi.org/10.1074/jbc.M011720200

[2] Ishikawa Y, Tokumitsu H, Inuzuka H, Murata-Hori M, Hosoya H, Kobayashi R. Identification and characterization of novel components of a Ca2+/calmodulin-dependent protein kinase cascade in HeLa cells. FEBS Lett. 2003 Aug 28;550(1-3):57-63. PMID:12935886

[3] Hsu LS, Tsou AP, Chi CW, Lee CH, Chen JY. Cloning, expression and chromosomal localization of human Ca2+/calmodulin-dependent protein kinase kinase. J Biomed Sci. 1998;5(2):141-9. PMID:9662074

[4] Cao W, Sohail M, Liu G, Koumbadinga GA, Lobo VG, Xie J. Differential effects of PKA-controlled CaMKK2 variants on neuronal differentiation. RNA Biol. 2011 Nov-Dec;8(6):1061-72. doi: 10.4161/rna.8.6.16691. Epub 2011 Nov 1. PMID:21957496 doi:http://dx.doi.org/10.4161/rna.8.6.16691

[5] Price DJ, Drewry DH, Schaller LT, Thompson BD, Reid PR, Maloney PR, Liang X, Banker P, Buckholz RG, Selley PK, McDonald OB, Smith JL, Shearer TW, Cox RF, Williams SP, Reid RA, Tacconi S, Faggioni F, Piubelli C, Sartori I, Tessari M, Wang TY. An orally available, brain-penetrant CAMKK2 inhibitor reduces food intake in rodent model. Bioorg Med Chem Lett. 2018 Apr 5. pii: S0960-894X(18)30223-3. doi:, 10.1016/j.bmcl.2018.03.034. PMID:29653895 doi:http://dx.doi.org/10.1016/j.bmcl.2018.03.034

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