Phosphoinositide-dependent kinase-1

Not to be confused with Pyruvate dehydrogenase lipoamide kinase isozyme 1 (PDK1).

3-phosphoinositide dependent protein kinase 1

PDB rendering based on 1h1w.

Available structures

Ortholog search: PDBe, RCSB

List of PDB id codes
1H1W, 1OKY, 1OKZ, 1UU3, 1UU7, 1UU8, 1UU9, 1UVR, 1W1D, 1W1G, 1W1H, 1Z5M, 2BIY, 2PE0, 2PE1, 2PE2, 2R7B, 2VKI, 2XCH, 2XCK, 3H9O, 3HRC, 3HRF, 3ION, 3IOP, 3NAX, 3NAY, 3NUN, 3NUS, 3NUU, 3NUY, 3ORX, 3ORZ, 3OTU, 3PWY, 3QC4, 3QCQ, 3QCS, 3QCX, 3QCY, 3QD0, 3QD3, 3QD4, 3RCJ, 3RWP, 3RWQ, 3SC1, 4A06, 4A07, 4AW0, 4AW1, 4CT1, 4CT2, 4RQK, 4RQV, 4RRV

Identifiers

Symbols

PDPK1 ; PDK1; PDPK2; PDPK2P; PRO0461

External IDs

OMIM: 605213 MGI: 1338068 HomoloGene: 37643 ChEMBL: 2534 GeneCards: PDPK1 Gene

EC number

2.7.11.1

Gene ontology
Molecular function	• protein serine/threonine kinase activity • 3-phosphoinositide-dependent protein kinase activity • insulin receptor binding • protein binding • ATP binding • phospholipase activator activity • kinase activity • protein kinase binding • phospholipase binding
Cellular component	• nucleoplasm • cytoplasm • cytosol • plasma membrane • focal adhesion • membrane • cytoplasmic membrane-bounded vesicle • cell projection • neuronal postsynaptic density
Biological process	• stimulatory C-type lectin receptor signaling pathway • type B pancreatic cell development • transcription, DNA-templated • regulation of transcription, DNA-templated • protein phosphorylation • negative regulation of protein kinase activity • hyperosmotic response • epidermal growth factor receptor signaling pathway • small GTPase mediated signal transduction • synaptic transmission • blood coagulation • insulin receptor signaling pathway • fibroblast growth factor receptor signaling pathway • positive regulation of phospholipase activity • regulation of endothelial cell migration • negative regulation of cardiac muscle cell apoptotic process • cell migration • peptidyl-threonine phosphorylation • calcium-mediated signaling • actin cytoskeleton organization • platelet activation • negative regulation of transforming growth factor beta receptor signaling pathway • T cell costimulation • activation of protein kinase B activity • cellular response to insulin stimulus • negative regulation of toll-like receptor signaling pathway • intracellular signal transduction • Fc-epsilon receptor signaling pathway • regulation of I-kappaB kinase/NF-kappaB signaling • regulation of mast cell degranulation • innate immune response • protein autophosphorylation • vascular endothelial growth factor receptor signaling pathway • neurotrophin TRK receptor signaling pathway • phosphatidylinositol-mediated signaling • focal adhesion assembly • T cell receptor signaling pathway • positive regulation of release of sequestered calcium ion into cytosol • cellular response to epidermal growth factor stimulus • positive regulation of establishment of protein localization to plasma membrane • extrinsic apoptotic signaling pathway
Sources: Amigo / QuickGO

RNA expression pattern

More reference expression data

Orthologs

Species

Human

Mouse

RefSeq (mRNA)

RefSeq (protein)

Location (UCSC)

Chr 16:
2.54 – 2.6 Mb

Chr 17:
24.07 – 24.15 Mb

PubMed search

In the field of biochemistry, 3-phosphoinositide dependent protein kinase-1, also known as PDPK1 is a protein which in humans is encoded by the PDPK1 gene.^[1] It is implicated in the development and progression of melanomas.^[2]

Function

PDPK1 is a master kinase, which is crucial for the activation of AKT/PKB and many other AGC kinases including PKC, S6K, SGK. An important role for PDPK1 is in the signalling pathways activated by several growth factors and hormones including insulin signaling.

Mice lacking PDPK1 die during early embryonic development, indicating that this enzyme is critical for transmitting the growth-promoting signals necessary for normal mammalian development.

Mice that are deficient in PDPK1 have a ≈40% decrease in body mass, mild glucose intolerance, and are resistant to cancer brought about by hyperactivation of the PI3K pathway (PTEN+/-).^[3] ^[4]

Etymology

PDPK1 stands for 3-phosphoinositide-dependent protein kinase 1. PDPK1 functions downstream of PI3K through PDPK1's interaction with membrane phospholipids including phosphatidylinositols, phosphatidylinositol (3,4)-bisphosphate and phosphatidylinositol (3,4,5)-trisphosphate. PI3K indirectly regulates PDPK1 by phosphorylating phosphatidylinositols which in turn generates phosphatidylinositol (3,4)-bisphosphate and phosphatidylinositol (3,4,5)-trisphosphate. However, PDPK1 is believed to be constitutively active and does not always require phosphatidylinositols for its activities.

Phosphatidylinositols are only required for the activation at the membrane of some substrates including AKT. PDPK1 however does not require membrane lipid binding for the efficient phosphorylation of most of its substrates in the cytosol (not at the cell membrane).

Structure

The structure of PDPK1 can be divided into two domains; the kinase or catalytic domain and the PH domain. The PH domain functions mainly in the interaction of PDPK1 with phosphatidylinositol (3,4)-bisphosphate and phosphatidylinositol (3,4,5)-trisphosphate which is important in localization and activation of some of membrane associated PDPK1's substrates including AKT.

The kinase domain has three ligand binding sites; the substrate binding site, the ATP binding site, and the docking site (also known as PIF pocket). Several PDPK1 substrates including S6K and Protein kinase C, require the binding at this docking site. Small molecule allosteric activators of PDPK1 were shown to selectively inhibit activation of substrates that require docking site interaction. These compounds do not bind to the active site and allow PDPK1 to activate other substrates that do not require docking site interaction. PDPK1 is constitutively active and at present, there is no known inhibitor proteins for PDPK1.

The activation of PDPK1's main effector, AKT, is believed to require a proper orientation of the kinase and PH domains of PDPK1 and AKT at the membrane.

Interactions

Phosphoinositide-dependent kinase-1 has been shown to interact with:

References

↑ "Entrez Gene: PDPK1".
↑ Scortegagna M, Ruller C, Feng Y, Lazova R, Kluger H, Li JL, De SK, Rickert R, Pellecchia M, Bosenberg M, Ronai ZA (2014). "Genetic inactivation or pharmacological inhibition of Pdk1 delays development and inhibits metastasis of Braf(V600E)::Pten(-/-) melanoma". Oncogene 33 (34): 4330–9. doi:10.1038/onc.2013.383.
↑ Mora A, Komander D, van Aalten DM, Alessi DR (April 2004). "PDK1, the master regulator of AGC kinase signal transduction". Semin. Cell Dev. Biol. 15 (2): 161–70. doi:10.1016/j.semcdb.2003.12.022. PMID 15209375.
↑ Frödin M, Antal TL, Dümmler BA, Jensen CJ, Deak M, Gammeltoft S, Biondi RM (October 2002). "A phosphoserine/threonine-binding pocket in AGC kinases and PDK1 mediates activation by hydrophobic motif phosphorylation". EMBO J. 21 (20): 5396–407. doi:10.1093/emboj/cdf551. PMC 129083. PMID 12374740.
↑ Barry FA, Gibbins JM (April 2002). "Protein kinase B is regulated in platelets by the collagen receptor glycoprotein VI". J. Biol. Chem. 277 (15): 12874–8. doi:10.1074/jbc.M200482200. PMID 11825911.
↑ Persad S, Attwell S, Gray V, Mawji N, Deng JT, Leung D, Yan J, Sanghera J, Walsh MP, Dedhar S (July 2001). "Regulation of protein kinase B/Akt-serine 473 phosphorylation by integrin-linked kinase: critical roles for kinase activity and amino acids arginine 211 and serine 343". J. Biol. Chem. 276 (29): 27462–9. doi:10.1074/jbc.M102940200. PMID 11313365.
1 2 3 Hodgkinson CP, Sale GJ (January 2002). "Regulation of both PDK1 and the phosphorylation of PKC-zeta and -delta by a C-terminal PRK2 fragment". Biochemistry 41 (2): 561–9. doi:10.1021/bi010719z. PMID 11781095.
1 2 3 4 Balendran A, Biondi RM, Cheung PC, Casamayor A, Deak M, Alessi DR (July 2000). "A 3-phosphoinositide-dependent protein kinase-1 (PDK1) docking site is required for the phosphorylation of protein kinase Czeta (PKCzeta ) and PKC-related kinase 2 by PDK1". J. Biol. Chem. 275 (27): 20806–13. doi:10.1074/jbc.M000421200. PMID 10764742.
↑ Biondi RM, Cheung PC, Casamayor A, Deak M, Currie RA, Alessi DR (March 2000). "Identification of a pocket in the PDK1 kinase domain that interacts with PIF and the C-terminal residues of PKA". EMBO J. 19 (5): 979–88. doi:10.1093/emboj/19.5.979. PMC 305637. PMID 10698939.
1 2 Park J, Leong ML, Buse P, Maiyar AC, Firestone GL, Hemmings BA (June 1999). "Serum and glucocorticoid-inducible kinase (SGK) is a target of the PI 3-kinase-stimulated signaling pathway". EMBO J. 18 (11): 3024–33. doi:10.1093/emboj/18.11.3024. PMC 1171384. PMID 10357815.
↑ Le Good JA, Ziegler WH, Parekh DB, Alessi DR, Cohen P, Parker PJ (September 1998). "Protein kinase C isotypes controlled by phosphoinositide 3-kinase through the protein kinase PDK1". Science 281 (5385): 2042–5. doi:10.1126/science.281.5385.2042. PMID 9748166.
1 2 Chun J, Kwon T, Lee E, Suh PG, Choi EJ, Sun Kang S (October 2002). "The Na(+)/H(+) exchanger regulatory factor 2 mediates phosphorylation of serum- and glucocorticoid-induced protein kinase 1 by 3-phosphoinositide-dependent protein kinase 1". Biochem. Biophys. Res. Commun. 298 (2): 207–15. doi:10.1016/s0006-291x(02)02428-2. PMID 12387817.
↑ Sato S, Fujita N, Tsuruo T (October 2002). "Regulation of kinase activity of 3-phosphoinositide-dependent protein kinase-1 by binding to 14-3-3". J. Biol. Chem. 277 (42): 39360–7. doi:10.1074/jbc.M205141200. PMID 12177059.

External links

3-phosphoinositide-dependent protein kinase at the US National Library of Medicine Medical Subject Headings (MeSH)

PDB gallery

1h1w: HIGH RESOLUTION CRYSTAL STRUCTURE OF THE HUMAN PDK1 CATALYTIC DOMAIN

1oky: STRUCTURE OF HUMAN PDK1 KINASE DOMAIN IN COMPLEX WITH STAUROSPORINE

1okz: STRUCTURE OF HUMAN PDK1 KINASE DOMAIN IN COMPLEX WITH UCN-01

1uu3: STRUCTURE OF HUMAN PDK1 KINASE DOMAIN IN COMPLEX WITH LY333531

1uu7: STRUCTURE OF HUMAN PDK1 KINASE DOMAIN IN COMPLEX WITH BIM-2

1uu8: STRUCTURE OF HUMAN PDK1 KINASE DOMAIN IN COMPLEX WITH BIM-1

1uu9: STRUCTURE OF HUMAN PDK1 KINASE DOMAIN IN COMPLEX WITH BIM-3

1uvr: STRUCTURE OF HUMAN PDK1 KINASE DOMAIN IN COMPLEX WITH BIM-8

1w1d: CRYSTAL STRUCTURE OF THE PDK1 PLECKSTRIN HOMOLOGY (PH) DOMAIN BOUND TO INOSITOL (1,3,4,5)-TETRAKISPHOSPHATE

1w1g: CRYSTAL STRUCTURE OF THE PDK1 PLECKSTRIN HOMOLOGY (PH) DOMAIN BOUND TO DIC4-PHOSPHATIDYLINOSITOL (3,4,5)-TRISPHOSPHATE

1w1h: CRYSTAL STRUCTURE OF THE PDK1 PLECKSTRIN HOMOLOGY (PH) DOMAIN

1z5m: Crystal Structure Of N1-[3-[[5-bromo-2-[[3-[(1-pyrrolidinylcarbonyl)amino]phenyl]amino]-4-pyrimidinyl]amino]propyl]-2,2-dimethylpropanediamide Complexed with Human PDK1

2biy: STRUCTURE OF PDK1-S241A MUTANT KINASE DOMAIN

Kinases: Serine/threonine-specific protein kinases (EC 2.7.11-12)

Serine/threonine-specific protein kinases (EC 2.7.11.1-EC 2.7.11.20)

Non-specific serine/threonine protein kinases (EC 2.7.11.1)	LATS1 LATS2 MAST1 MAST2 STK38 STK38L CIT ROCK1 SGK SGK2 SGK3 Protein kinase B AKT1 AKT2 AKT3 Ataxia telangiectasia mutated Mammalian target of rapamycin EIF-2 kinases PKR HRI EIF2AK3 EIF2AK4 Wee1 WEE1

Pyruvate dehydrogenase kinase (EC 2.7.11.2)	PDK1 PDK2 PDK3

Dephospho-(reductase kinase) kinase (EC 2.7.11.3)	AMP-activated protein kinase α PRKAA1 PRKAA2 β PRKAB1 PRKAB2 γ PRKAG1 PRKAG2 PRKAG3

(3-methyl-2-oxobutanoate dehydrogenase (acetyl-transferring)) (EC 2.7.11.4)	BCKDK BCKDHA BCKDHB

(isocitrate dehydrogenase (NADP+)) kinase (EC 2.7.11.5)	IDH2 IDH3A IDH3B IDH3G

(tyrosine 3-monooxygenase) kinase (EC 2.7.11.6)	STK4

Myosin-heavy-chain kinase (EC 2.7.11.7)	Aurora kinase Aurora A kinase Aurora B kinase

Fas-activated serine/threonine kinase (EC 2.7.11.8)	FASTK STK10

Goodpasture-antigen-binding protein kinase (EC 2.7.11.9)	-

IκB kinase (EC 2.7.11.10)	CHUK IKK2 TBK1 IKBKE IKBKG IKBKAP

cAMP-dependent protein kinase (EC 2.7.11.11)	Protein kinase A PRKACG PRKACB PRKACA PRKY

cGMP-dependent protein kinase (EC 2.7.11.12)	Protein kinase G PRKG1

Protein kinase C (EC 2.7.11.13)	Protein kinase C Protein kinase Cζ PKC alpha PRKCB1 PRKCD PRKCE PRKCH PRKCG PRKCI PRKCQ Protein kinase N1 PKN2 PKN3

Rhodopsin kinase (EC 2.7.11.14)	Rhodopsin kinase

Beta adrenergic receptor kinase (EC 2.7.11.15)	Beta adrenergic receptor kinase Beta adrenergic receptor kinase-2

G-protein coupled receptor kinases (EC 2.7.11.16)	GRK4 GRK5 GRK6

Ca2+/calmodulin-dependent (EC 2.7.11.17)	BRSK2 CAMK1 CAMK2A CAMK2B CAMK2D CAMK2G CAMK4 MLCK CASK CHEK1 CHEK2 DAPK1 DAPK2 DAPK3 STK11 MAPKAPK2 MAPKAPK3 MAPKAPK5 MARK1 MARK2 MARK3 MARK4 MELK MKNK1 MKNK2 NUAK1 NUAK2 OBSCN PASK PHKG1 PHKG2 PIM1 PIM2 PKD1 PRKD2 PRKD3 PSKH1 SNF1LK2 KIAA0999 STK40 SNF1LK SNRK SPEG TSSK2 Kalirin TRIB1 TRIB2 TRIB3 TRIO Titin DCLK1

Myosin light-chain kinase (EC 2.7.11.18)	MYLK MYLK2 MYLK3 MYLK4

Phosphorylase kinase (EC 2.7.11.19)	PHKA1 PHKA2 PHKB PHKG1 PHKG2

Elongation factor 2 kinase (EC 2.7.11.20)	EEF2K STK19

Polo kinase (EC 2.7.11.21)	PLK1 PLK2 PLK3 PLK4

Serine/threonine-specific protein kinases (EC 2.7.11.21-EC 2.7.11.30)

Polo kinase (EC 2.7.11.21)	PLK1 PLK2 PLK3 PLK4

Cyclin-dependent kinase (EC 2.7.11.22)	CDK1 CDK2 CDKL2 CDK3 CDK4 CDK5 CDKL5 CDK6 CDK7 CDK8 CDK9 CDK10 CDK12 CDC2L5 PCTK1 PCTK2 PCTK3 PFTK1 CDC2L1

(RNA-polymerase)-subunit kinase (EC 2.7.11.23)	RPS6KA5 RPS6KA4 P70S6 kinase P70-S6 Kinase 1 RPS6KB2 RPS6KA2 RPS6KA3 RPS6KA1 RPS6KC1

Mitogen-activated protein kinase (EC 2.7.11.24)	Extracellular signal-regulated MAPK1 MAPK3 MAPK4 MAPK6 MAPK7 MAPK12 MAPK15 C-Jun N-terminal MAPK8 MAPK9 MAPK10 P38 mitogen-activated protein MAPK11 MAPK13 MAPK14

MAP3K (EC 2.7.11.25)	MAP kinase kinase kinases MAP3K1 MAP3K2 MAP3K3 MAP3K4 MAP3K5 MAP3K6 MAP3K7 MAP3K8 RAFs ARAF BRAF KSR1 KSR2 MLKs MAP3K12 MAP3K13 MAP3K9 MAP3K10 MAP3K11 MAP3K7 ZAK CDC7 MAP3K14

Tau-protein kinase (EC 2.7.11.26)	TPK1 TTK GSK-3

(acetyl-CoA carboxylase) kinase (EC 2.7.11.27)	-

Tropomyosin kinase (EC 2.7.11.28)	-

Low-density-lipoprotein receptor kinase (EC 2.7.11.29)	-

Receptor protein serine/threonine kinase (EC 2.7.11.30)	Bone morphogenetic protein receptors BMPR1 BMPR1A BMPR1B BMPR2 ACVR1 ACVR1B ACVR1C ACVR2A ACVR2B ACVRL1 Anti-Müllerian hormone receptor

Dual-specificity kinases (EC 2.7.12)

MAP2K	MAP2K1 MAP2K2 MAP2K3 MAP2K4 MAP2K5 MAP2K6 MAP2K7

Proteins: enzymes

Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Catalytically perfect enzyme Coenzyme Cofactor Enzyme catalysis Enzyme kinetics Lineweaver–Burk plot Michaelis–Menten kinetics

Regulation	Allosteric regulation Cooperativity Enzyme inhibitor

Classification	EC number Enzyme superfamily Enzyme family List of enzymes

Types	EC1 Oxidoreductases(list) EC2 Transferases(list) EC3 Hydrolases(list) EC4 Lyases(list) EC5 Isomerases(list) EC6 Ligases(list)

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