Relation Results

Identifier	Residue	Sequence	Organism	Cell Line
SIGNOR-277383	Ser101	RRRRGAIsAEVYTEE	Homo sapiens	HEK-293T Cell
pmid	sentence
29378851	In this study, we further examined the potential of RIα phosphorylation to regulate physiologically relevant "desensitization" of PKAc activity. First, the serine 101 site of RIα was validated as a target of PKGIα phosphorylation both in vitro and in cells.These findings suggest that RIα phosphorylation may be a novel mechanism to circumvent the requirement of cAMP stimulus to activate type I PKA in cells.

Publications:

1

Organism:

Homo Sapiens

Identifier	Residue	Sequence	Organism	Cell Line
SIGNOR-249038	Ser104	RAEERKAsGPPKGPS	Chlorocebus aethiops	COS-7 Cell
pmid	sentence
10681529	Cyclic GMP kinase I phosphorylated CRP2 at Ser-104, because the mutation to Ala completely prevented the in vivo phosphorylation.

Publications:

1

Organism:

Chlorocebus Aethiops

Identifier	Residue	Sequence	Organism
SIGNOR-249037	Ser106	SNPVQKDsREENWQE	Chlorocebus aethiops
pmid	sentence
10671526	Although both cGK-Ialpha and -Ibeta, but not cAMP-dependent protein kinase, phosphorylated GKAP42 in vitro, GKAP42 was a good substrate only for cGK-Ialpha in intact cells, suggesting that the association with kinase protein is required for the phosphorylation in vivo.

Publications:

1

Organism:

Chlorocebus Aethiops

Identifier	Residue	Sequence	Organism	Cell Line
SIGNOR-249077	Ser1105	LDRKRHNsISEAKMR	Rattus norvegicus	Smooth Muscle Cell
pmid	sentence
11278298	PKG can directly phosphorylate PLC-beta2 and PLC-beta3 in vitro with purified proteins and in vivo with metabolic labeling. Phosphorylation of PLC-beta leads to the inhibition of G-protein-activated PLC-beta3 activity by 50-70% in COS-7 cell transfection assays. By using phosphopeptide mapping and site-directed mutagenesis, we further identified two key phosphorylation sites for the regulation of PLC-beta3 by PKG (Ser(26) and Ser(1105)). Mutation at these two sites (S26A and S1105A) of PLC-beta3 completely blocked the phosphorylation of PLC-beta3 protein catalyzed by PKG.

Identifier	Residue	Sequence	Organism	Cell Line
SIGNOR-249079	Ser26	VETLRRGsKFIKWDE	Rattus norvegicus	Smooth Muscle Cell
pmid	sentence
11278298	PKG can directly phosphorylate PLC-beta2 and PLC-beta3 in vitro with purified proteins and in vivo with metabolic labeling. Phosphorylation of PLC-beta leads to the inhibition of G-protein-activated PLC-beta3 activity by 50-70% in COS-7 cell transfection assays. By using phosphopeptide mapping and site-directed mutagenesis, we further identified two key phosphorylation sites for the regulation of PLC-beta3 by PKG (Ser(26) and Ser(1105)). Mutation at these two sites (S26A and S1105A) of PLC-beta3 completely blocked the phosphorylation of PLC-beta3 protein catalyzed by PKG.

Publications:

2

Organism:

Rattus Norvegicus

Identifier	Residue	Sequence	Organism
SIGNOR-123646	Ser1131	AARERKRsRGNRKSL	Homo sapiens
pmid	sentence
15051728	Pkgi also directly phosphorylates fhod1, and studies with wild-type and mutant fhod1-derived peptides identify ser-1131 in the fhod1 c terminus as the unique pkgi phosphorylation site in fhod1. phosphorylation of three conserved residues within the dad domain activates fhod1 while binding to rac regulates fhod1 subcellular localization

Identifier	Residue	Sequence	Organism
SIGNOR-170094	Ser1131	AARERKRsRGNRKSL	Homo sapiens
pmid	sentence
21106951	Pkgi also directly phosphorylates fhod1, and studies with wild-type and mutant fhod1-derived peptides identify ser-1131 in the fhod1 c terminus as the unique pkgi phosphorylation site in fhod1. phosphorylation of three conserved residues within the dad domain activates fhod1 while binding to rac regulates fhod1 subcellular localization

Publications:

2

Organism:

Homo Sapiens

Tissue:

Muscle, Smooth Muscle

Identifier	Residue	Sequence	Organism
SIGNOR-249076	Ser119	EILSRRPsYRKILND	in vitro
pmid	sentence
11175347	G-kinase phosphorylated GST-CREB, albeit less efficiently than A-kinase, but GST was not phosphorylated by either kinase (Figure 5a). GST-CREB purified from bacteria was similarly phosphorylated by G-kinase, whereas GST-CREB containing a serine 133 to alanine mutation was not (Figure 5b). These results demonstrate that G-kinase can directly phosphorylate CREB on serine 133.

Publications:

1

Organism:

In Vitro

Identifier	Residue	Sequence	Organism
SIGNOR-97946	Ser146	MEPERRDsQDGSSYR	Homo sapiens
pmid	sentence
12571245	Studies with human lasp mutants identified serine 146 as a specific phosphorylation site for cgk and cak in vivo. Lasp is an actin-binding protein, and the phospho-lasp-mimicking mutant s146d showed reduced binding affinity for f-actin in cosedimentation experiments.

Publications:

1

Organism:

Homo Sapiens

Identifier	Residue	Sequence	Organism
SIGNOR-120347	Ser157	EHIERRVsNAGGPPA	Homo sapiens
pmid	sentence
14679200	Three phosphorylation sites have been identified in VASP: Ser157, Ser239, and Thr278, all of which can be phosphorylated by either PKA or PKG in vitro

Identifier	Residue	Sequence	Organism
SIGNOR-120351	Ser239	GAKLRKVsKQEEASG	Homo sapiens
pmid	sentence
14679200	Three phosphorylation sites have been identified in VASP: Ser157, Ser239, and Thr278, all of which can be phosphorylated by either PKA or PKG in vitro

Publications:

2

Organism:

Homo Sapiens

Pathways:

Axon guidance

Identifier	Residue	Sequence	Organism	Cell Line
SIGNOR-248916	Ser1764	RPSGRREsLTSFGNG	Rattus norvegicus	Vascular Smooth Muscle Cell
pmid	sentence
8132598	Phosphorylation of the inositol 1,4,5-trisphosphate receptor by cyclic GMP-dependent protein kinase. \| The synthetic peptide corresponding to serine 1755 (GRRESLTSFG) was phosphorylated with aKm in the range of 30-40 microM by both kinases. The kinetic analysis revealed that this peptide substrate is the best substrate described for cGMP kinase to date. Vascular smooth muscle cells prelabeled with [32P]orthophosphate and treated with atrial natriuretic peptide or sodium nitroprusside to elevate cGMP also resulted in increased labeling of the IP3 receptor. Phosphorylation of IP3 receptor by cGMP kinase may regulate the function of IP3 receptor in vascular smooth muscle cells and contribute to the effect of cGMP to regulate intracellular calcium levels.

Publications:

1

Organism:

Rattus Norvegicus

Identifier	Residue	Sequence	Organism
SIGNOR-71680	Ser19	AQVSRRIsFSASHRL	Homo sapiens
pmid	sentence
10531334	Upon expression in cos-1 cells, ptps-s19a was stable but not phosphorylated and had a reduced activity of approximately 33% in comparison to wild-type ptps. Addition of cgmp stimulated phosphotransferase activity 2-fold. Extracts from transfected cos-1 cells overexpressing cgkii stimulated ser(19) phosphorylation more than 100-fold.In assays with purified enzymes, wild-type but not ptps-s19a was a specific substrate for the cgmp-dependent protein kinase (cgk) type i and ii. Upon expression in cos-1 cells, ptps-s19a was stable but not phosphorylated and had a reduced activity of approximately 33% in comparison to wild-type ptps

Publications:

1

Organism:

Homo Sapiens

Tissue:

Brain

Identifier	Residue	Sequence	Organism	Cell Line
SIGNOR-249018	Ser20	PSKKRKRsRWNQDTM	Rattus norvegicus	Neuronal Cell Line
pmid	sentence
10449420	PKG phosphorylates SF1 at Ser20, which inhibits the SF1-U2AF65 interaction leading to a block of pre-spliceosome assembly. Mutation of Ser20 to Ala or Thr also inhibits the interaction with U2AF65, indicating that Ser20 is essential for binding.

Publications:

1

Organism:

Rattus Norvegicus

Identifier	Residue	Sequence	Organism	Cell Line
SIGNOR-273785	Ser216	PTNLRRRsRSFTCNE	Homo sapiens	Blood Platelet
pmid	sentence
24244663	Cyclic AMP- and cyclic GMP-dependent kinases (PKA, PKG) inhibit the interaction of RGS18 and 14-3-3 by phosphorylating S216. S216 phosphorylation might activate PP1 leading to dephosphorylation of both 14-3-3 binding sites, S49 and S218, and detachment of 14-3-3. Removal of 14-3-3 activates RGS18 to turn off Gq signaling thus contributing to platelet inhibition.

Publications:

1

Organism:

Homo Sapiens

Identifier	Residue	Sequence	Organism
SIGNOR-134640	Ser23	PAPIRRRsSNYRAYA	Homo sapiens
pmid	sentence
15769444	Phosphorylation at ser 23/24 (e.g., by pka or pkg) results in reduction in myofilament ca2+ sensitivity and an increase in crossbridge cycling rate, leading to acceleration of relaxation and an increase in power output but a reduced economy of contraction. Conversely, phosphorylation at ser 43/45 (by pkc) is associated with reduced maximum ca2+-activated force and decreased crossbridge cycling rates, which are likely to reduce power output and delay relaxation, with an increased economy of contraction.

Identifier	Residue	Sequence	Organism
SIGNOR-134644	Ser24	APIRRRSsNYRAYAT	Homo sapiens
pmid	sentence
15769444	Phosphorylation at ser 23/24 (e.g., by pka or pkg) results in reduction in myofilament ca2+ sensitivity and an increase in crossbridge cycling rate, leading to acceleration of relaxation and an increase in power output but a reduced economy of contraction. Conversely, phosphorylation at ser 43/45 (by pkc) is associated with reduced maximum ca2+-activated force and decreased crossbridge cycling rates, which are likely to reduce power output and delay relaxation, with an increased economy of contraction.

Publications:

2

Organism:

Homo Sapiens

Identifier	Residue	Sequence	Organism
SIGNOR-142961	Ser251	KNDYRKLsMQCKDFV	Homo sapiens
pmid	sentence
16331690	The present study demonstrates that human trpc3 expressed in hek293 cells forms store-operated ca2+ influx channels, the activity of which is inhibited by pkg. The inhibition is due to a direct phosphorylation of pkg on trpc3 channels at position t11 and s263.

Identifier	Residue	Sequence	Organism	Cell Line
SIGNOR-122978	Ser251	KNDYRKLsMQCKDFV	Homo sapiens	HEK-293 Cell
pmid	sentence
14983059	There are two known phosphorylation-mediated inactivation mechanisms for trpc3 channels. Protein kinase g (pkg) inactivates trpc3 by direct phosphorylation on thr-11 and ser-263 of the trpc3 proteins, and protein kinase c (pkc) inactivates trpc3 by phosphorylation on ser-712.

Identifier	Residue	Sequence	Organism
SIGNOR-142953	Ser251	KNDYRKLsMQCKDFV	Homo sapiens
pmid	sentence
16331690	There are two known phosphorylation-mediated inactivation mechanisms for trpc3 channels. Protein kinase g (pkg) inactivates trpc3 by direct phosphorylation on thr-11 and ser-263 of the trpc3 proteins, and protein kinase c (pkc) inactivates trpc3 by phosphorylation on ser-712.

Identifier	Residue	Organism
SIGNOR-142964		Homo sapiens
pmid	sentence
16331690	The present study demonstrates that human trpc3 expressed in hek293 cells forms store-operated ca2+ influx channels, the activity of which is inhibited by pkg. The inhibition is due to a direct phosphorylation of pkg on trpc3 channels at position t11 and s263.

Publications:

4

Organism:

Homo Sapiens

Identifier	Residue	Sequence	Organism
SIGNOR-248918	Ser2843	KKKTRKIsQSAQTYD	in vitro
pmid	sentence
8380342	Automated Edman sequence analysis of the major phosphopeptide obtained from PK-A and PK-G phosphorylation and one phosphopeptide obtained from PK-CaM phosphorylation yielded the sequence KISQTAQTYDPR (residues 28412852) with serine 2843 as phosphorylation site

Publications:

1

Organism:

In Vitro

Identifier	Residue	Sequence	Organism
SIGNOR-276271	Ser322	KNDYKKLsMQCKDFV	in vitro
pmid	sentence
19961855	PKG phosphorylated TRPC6, and both T70 and S322 were targeted. Both sites were functionally relevant, as 8Br-cGMP strongly suppressed current in wild-type TRPC6 channels, but not in those with phospho-silencing mutations (T70A, S322A or S322Q).

Identifier	Residue	Sequence	Organism
SIGNOR-276272	Thr70	RLAHRRQtVLREKGR	in vitro
pmid	sentence
19961855	PKG phosphorylated TRPC6, and both T70 and S322 were targeted. Both sites were functionally relevant, as 8Br-cGMP strongly suppressed current in wild-type TRPC6 channels, but not in those with phospho-silencing mutations (T70A, S322A or S322Q).

Publications:

2

Organism:

In Vitro

Identifier	Residue	Sequence	Organism
SIGNOR-124360	Ser398	WKRLRSHsRQYVSGL	Homo sapiens
pmid	sentence
15107581	A specific pkg inhibitor inhibits h1r downregulation in cho cells (37). However, direct activation of pkg in these cells does not cause h1r down-regulation, indicating that more studies are required to clarify the role of pkg in h1r down-regulation.

Identifier	Residue	Sequence	Organism
SIGNOR-66019	Ser398	WKRLRSHsRQYVSGL	Homo sapiens
pmid	sentence
10101032	Ser396 and ser398 are also potential phosphorylation sites for capk, cgmp-dependent protein kinase, and camk ii. Elevation of intracellular camp content has been shown to attenuate histamine-induced accumulation of ip in c6 glioma cells (peakman and hill, 1994) and in ddt1 mf-2 smooth muscle cells (sipma et al., 1995

Publications:

2

Organism:

Homo Sapiens

Tissue:

Ovary

Identifier	Residue	Sequence	Organism
SIGNOR-89849	Ser412	GIPFRRPsTYGIPRL	Homo sapiens
pmid	sentence
12082086	G-kinase phosphorylated tfii-i in vitro and in vivo on ser(371) and ser(743) outside of the interaction domain. G-kinase strongly enhanced tfii-i transactivation of a serum-response element-containing promoter in cos7 cells

Identifier	Residue	Sequence	Organism
SIGNOR-89853	Ser784	GVPFRRPsTFGIPRL	Homo sapiens
pmid	sentence
12082086	G-kinase phosphorylated tfii-i in vitro and in vivo on ser(371) and ser(743) outside of the interaction domain. G-kinase strongly enhanced tfii-i transactivation of a serum-response element-containing promoter in cos7 cells

Publications:

2

Organism:

Homo Sapiens

Tissue:

Kidney

Identifier	Residue	Sequence	Organism
SIGNOR-262756	Ser443	PQRKSQRsSYVSMRI	in vitro
pmid	sentence
12175859	Here, we have identified phosphorylation sites on the human ρ1 GABA receptor for six protein kinases widely expressed in the brain: protein kinase C (PKC); cAMP‐dependent protein kinase (PKA); calmodulin‐dependent kinase (CaMKII); casein kinase (CKII); mitogen‐activated protein kinase (MAPK); and cGMP‐dependent protein kinase (PKG). The 1 IC-loop does not have consensus sequences for PKG, but we found that this enzyme phosphorylated the same sites as PKA: S422, S423 (Fig. 5A).An extensive functional analysis comparing wild type 1 receptors and receptors with select or multiple phosphorylation sites removed as well as pharmacological manipulation of five kinase pathways failed to reveal any functional effects of phosphorylation

Identifier	Residue	Sequence	Organism
SIGNOR-262757	Ser444	QRKSQRSsYVSMRID	in vitro
pmid	sentence
12175859	Here, we have identified phosphorylation sites on the human ρ1 GABA receptor for six protein kinases widely expressed in the brain: protein kinase C (PKC); cAMP‐dependent protein kinase (PKA); calmodulin‐dependent kinase (CaMKII); casein kinase (CKII); mitogen‐activated protein kinase (MAPK); and cGMP‐dependent protein kinase (PKG). The 1 IC-loop does not have consensus sequences for PKG, but we found that this enzyme phosphorylated the same sites as PKA: S422, S423 (Fig. 5A).An extensive functional analysis comparing wild type 1 receptors and receptors with select or multiple phosphorylation sites removed as well as pharmacological manipulation of five kinase pathways failed to reveal any functional effects of phosphorylation

Publications:

2

Organism:

In Vitro

Identifier	Residue	Sequence	Organism
SIGNOR-249240	Ser46	KDWKTRLsYFLQNSS	in vitro
pmid	sentence
14608379	Thus, PKGI-alpha binds to, phosphorylates and activates RGS-2, attenuating receptor-mediated vascular contraction.

Identifier	Residue	Sequence	Organism
SIGNOR-249241	Ser64	KPKTGKKsKQQAFIK	in vitro
pmid	sentence
14608379	Thus, PKGI-alpha binds to, phosphorylates and activates RGS-2, attenuating receptor-mediated vascular contraction.

Publications:

2

Organism:

In Vitro

Identifier	Residue	Sequence	Organism
SIGNOR-89839	Ser65	TTRAQGIsAEPQTYR	Homo sapiens
pmid	sentence
12080049	Serines 64 and 79 are homologous residues that are juxtaposed to the autoinhibitory pseudosubstrate site in cgmp-dependent protein kinase type ialpha and type ibeta (pkg-ialpha and pkg-ibeta), respectively. Autophosphorylation of this residue is associated with activation of type i pkgs.

Publications:

1

Organism:

Homo Sapiens

Pathways:

Axon guidance

Identifier	Residue	Sequence	Organism
SIGNOR-72712	Ser660	FSAERRNsILTETLH	Homo sapiens
pmid	sentence
10581361	Direct amino acid sequencing and peptide mapping of cf-2 revealed that serines 660, 700, 737, and 813 as well as serine 768, serine 795, or both were phosphorylated by pka and pkgcftr possesses a large cluster of strict dibasic consensus sites for phosphorylation by protein kinase a (pka) in the r-domain and an obligatory dependence on phosphorylation is a hallmark of cftr cl(-) channel function

Identifier	Residue	Sequence	Organism
SIGNOR-18237	Ser660	FSAERRNsILTETLH	Homo sapiens
pmid	sentence
1377674	Direct amino acid sequencing and peptide mapping of cf-2 revealed that serines 660, 700, 737, and 813 as well as serine 768, serine 795, or both were phosphorylated by pka and pkgcftr possesses a large cluster of strict dibasic consensus sites for phosphorylation by protein kinase a (pka) in the r-domain and an obligatory dependence on phosphorylation is a hallmark of cftr cl(-) channel function

Identifier	Residue	Sequence	Organism
SIGNOR-72724	Ser795	TASTRKVsLAPQANL	Homo sapiens
pmid	sentence
10581361	Direct amino acid sequencing and peptide mapping of cf-2 revealed that serines 660, 700, 737, and 813 as well as serine 768, serine 795, or both were phosphorylated by pka and pkgcftr possesses a large cluster of strict dibasic consensus sites for phosphorylation by protein kinase a (pka) in the r-domain and an obligatory dependence on phosphorylation is a hallmark of cftr cl(-) channel function

Identifier	Residue	Sequence	Organism
SIGNOR-18249	Ser795	TASTRKVsLAPQANL	Homo sapiens
pmid	sentence
1377674	Direct amino acid sequencing and peptide mapping of cf-2 revealed that serines 660, 700, 737, and 813 as well as serine 768, serine 795, or both were phosphorylated by pka and pkgcftr possesses a large cluster of strict dibasic consensus sites for phosphorylation by protein kinase a (pka) in the r-domain and an obligatory dependence on phosphorylation is a hallmark of cftr cl(-) channel function

Identifier	Residue	Sequence	Organism
SIGNOR-72728	Ser813	DIYSRRLsQETGLEI	Homo sapiens
pmid	sentence
10581361	Direct amino acid sequencing and peptide mapping of cf-2 revealed that serines 660, 700, 737, and 813 as well as serine 768, serine 795, or both were phosphorylated by pka and pkgcftr possesses a large cluster of strict dibasic consensus sites for phosphorylation by protein kinase a (pka) in the r-domain and an obligatory dependence on phosphorylation is a hallmark of cftr cl(-) channel function

Identifier	Residue	Sequence	Organism
SIGNOR-18253	Ser813	DIYSRRLsQETGLEI	Homo sapiens
pmid	sentence
1377674	Direct amino acid sequencing and peptide mapping of cf-2 revealed that serines 660, 700, 737, and 813 as well as serine 768, serine 795, or both were phosphorylated by pka and pkgcftr possesses a large cluster of strict dibasic consensus sites for phosphorylation by protein kinase a (pka) in the r-domain and an obligatory dependence on phosphorylation is a hallmark of cftr cl(-) channel function

Publications:

6

Organism:

Homo Sapiens

Identifier	Residue	Sequence	Organism
SIGNOR-248850	Ser700	FGEKRKNsILNPINS	in vitro
pmid	sentence
1377674	Direct amino acid sequencing and peptide mapping of CF-2 revealed that serines 660, 700, 737, and 813 as well as serine 768, serine 795, or both were phosphorylated by PKA and PKG, and serines 686 and 790 were phosphorylated by PKC.

Publications:

1

Organism:

In Vitro

Identifier	Residue	Sequence	Organism
SIGNOR-186784	Ser78	PAYSRALsRQLSSGV	Homo sapiens
pmid	sentence
19593530	Purified pkg isoforms ia, ib, and ii all caused incorporation of phosphate in recombinant hsp27 at ser-78, ser-82, and thr-143, but not ser-15.These Studies indicate that hsp27 is a genuine substrate for pkg and that pkg may mediate inhibition of platelet aggregation through phosphorylation of hsp27 and subsequent prevent of actin polymerization

Identifier	Residue	Sequence	Organism
SIGNOR-186788	Ser82	RALSRQLsSGVSEIR	Homo sapiens
pmid	sentence
19593530	Purified pkg isoforms ia, ib, and ii all caused incorporation of phosphate in recombinant hsp27 at ser-78, ser-82, and thr-143, but not ser-15.These Studies indicate that hsp27 is a genuine substrate for pkg and that pkg may mediate inhibition of platelet aggregation through phosphorylation of hsp27 and subsequent prevent of actin polymerization

Identifier	Residue	Sequence	Organism
SIGNOR-186792	Thr143	RCFTRKYtLPPGVDP	Homo sapiens
pmid	sentence
19593530	Purified pkg isoforms ia, ib, and ii all caused incorporation of phosphate in recombinant hsp27 at ser-78, ser-82, and thr-143, but not ser-15.These Studies indicate that hsp27 is a genuine substrate for pkg and that pkg may mediate inhibition of platelet aggregation through phosphorylation of hsp27 and subsequent prevent of actin polymerization

Publications:

3

Organism:

Homo Sapiens

Identifier	Residue	Sequence	Organism
SIGNOR-263183	Ser91	SQVSRKAsSWNREEK	in vitro
pmid	sentence
15107017	Mutation of Ser-91 to Ala in recombinant Sept3 also abolished PKG phosphorylation, confirming that Ser-91 is the major site in vitro. Therefore Sept3 is phosphorylated on Ser-91 in nerve terminals and its phosphorylation may contribute to the regulation of its subcellular localization in neurons.

Publications:

1

Organism:

In Vitro

Identifier	Residue	Sequence	Organism	Cell Line
SIGNOR-142957	Thr11	SPSLRRMtVMREKGR	Homo sapiens	HEK-293 Cell
pmid	sentence
16331690	The present study demonstrates that human trpc3 expressed in hek293 cells forms store-operated ca2+ influx channels, the activity of which is inhibited by pkg. The inhibition is due to a direct phosphorylation of pkg on trpc3 channels at position t11 and s263.

Publications:

1

Organism:

Homo Sapiens

Identifier	Residue	Sequence	Organism	Cell Line
SIGNOR-263147	Thr119	KKPRRKDtPALHMSP	Homo sapiens	Cerebellar Purkinje Cell
pmid	sentence
10051666	Recombinant human G-substrate was phosphorylated efficiently by cGMP-dependent protein kinase exclusively at Thr residues, and it was recognized by antibodies specific for rabbit phospho-G-substrate. The amino acid sequences surrounding the sites of phosphorylation in G-substrate are related to those around Thr-34 and Thr-35 of the dopamine- and cAMP-regulated phosphoprotein DARPP-32 and inhibitor-1, respectively, two potent inhibitors of protein phosphatase 1.

Identifier	Residue	Sequence	Organism	Cell Line
SIGNOR-263148	Thr68	KKPRRKDtPALHIPP	Homo sapiens	Cerebellar Purkinje Cell
pmid	sentence
10051666	Recombinant human G-substrate was phosphorylated efficiently by cGMP-dependent protein kinase exclusively at Thr residues, and it was recognized by antibodies specific for rabbit phospho-G-substrate. The amino acid sequences surrounding the sites of phosphorylation in G-substrate are related to those around Thr-34 and Thr-35 of the dopamine- and cAMP-regulated phosphoprotein DARPP-32 and inhibitor-1, respectively, two potent inhibitors of protein phosphatase 1.

Publications:

2

Organism:

Homo Sapiens

Identifier	Residue	Sequence	Organism	Cell Line
SIGNOR-263184	Thr15	KNMQRRHtTLREKGR	Chlorocebus aethiops	COS-7 Cell
pmid	sentence
21402151	In vitro and in vivo kinase assays have revealed that cGK-Iα phosphorylates mouse TRPC7 but not mouse TRPC3. Site-directed mutagenesis analysis revealed that TRPC7 was phosphorylated by cGK-Iα at threonine 15. Phosphorylation of TRPC7 significantly suppressed carbachol-induced calcium influx and CREB phosphorylation. These data indicate that cGK-Iα interacts with and phosphorylates TRPC7, contributing to the quick and accurate regulation of calcium influx and CREB phosphorylation.

Publications:

1

Organism:

Chlorocebus Aethiops

Identifier	Residue	Sequence	Organism
SIGNOR-188185	Thr159	DNKLRRYtTFSKRKT	Mus musculus
pmid	sentence
12809504	Myotonic dystrophy protein kinase (DMPK), a muscle- and neuron-restricted kinase, enhanced SRF-mediated promoter activity of the skeletal and cardiac alpha-actin genes in C2C12 myoblasts as well as in nonmyogenic cells. \| Threonine 159 in the MADS box alphaI coil was a specific phosphorylation target in vitro as well as in vivo of both DMPK and protein kinase C-alpha.

Publications:

1

Organism:

Mus Musculus

Identifier	Residue	Sequence	Organism	Cell Line
SIGNOR-158186	Thr276	SIWKGVKtSGKVVWV	Homo sapiens	HeLa Cell
pmid	sentence
17913921	These results are consistent with the hypothesis that pkg phosphorylates hsert at thr-276 and increases its activity by modifying the substrate permeation pathway formed, in part, by tm5.

Publications:

1

Organism:

Homo Sapiens

Identifier	Residue	Sequence	Organism
SIGNOR-98139	Thr278	LARRRKAtQVGEKTP	Homo sapiens
pmid	sentence
12576312	Vasodilator-stimulated phosphoprotein activation of serum-response element-dependent transcription occurs downstream of rhoa and is inhibited by cgmp-dependent protein kinase phosphorylation. Three phosphorylation sites have been identified in vasp: ser157, ser239, and thr278, all of which can be phosphorylated by either pka or pkg in vitro

Publications:

1

Organism:

Homo Sapiens

Pathways:

Axon guidance

Identifier	Residue	Sequence	Organism
SIGNOR-98803	Thr59	THIGPRTtRAQGISA	Homo sapiens
pmid	sentence
12609995	Antibodies generated against phosphorylated threonine 58 were used to demonstrate phosphorylation in response to pma treatment of the cells with kinetics similar to vasodilator-stimulated phosphoprotein phosphorylation. A phospho-mimetic mutation at this site (t58e) generated a partially activated pkg that was more sensitive to cgmp levels. A phospho- mutation (t58a) revealed that this residue is important but not sufficient for pkg activation by pkc.

Publications:

1

Organism:

Homo Sapiens

Pathways:

Axon guidance

Identifier	Residue	Organism
SIGNOR-268288		Homo sapiens
pmid	sentence
15066263	Vertebrate Ena/VASP proteins are phosphorylated by PKA, as well as PKG, and the phosphorylation is required for full function in a number of cellular contexts. PKG may preferentially phosphorylate sites of Ena/VASP proteins that reduce or inactivate these proteins. Inactivated Ena/VASP proteins dissociate from actin filaments, allowing capping proteins to bind and block monomer addition to plus ends, resulting in filament retraction.

Publications:

1

Organism:

Homo Sapiens

Pathways:

Axon guidance

Identifier	Residue	Organism
SIGNOR-268289		Homo sapiens
pmid	sentence
15066263	Vertebrate Ena/VASP proteins are phosphorylated by PKA, as well as PKG, and the phosphorylation is required for full function in a number of cellular contexts

Publications:

1

Organism:

Homo Sapiens

Pathways:

Axon guidance

Identifier	Residue	Organism
SIGNOR-268290		Homo sapiens
pmid	sentence
15066263	Vertebrate Ena/VASP proteins are phosphorylated by PKA, as well as PKG, and the phosphorylation is required for full function in a number of cellular contexts

Publications:

1

Organism:

Homo Sapiens

Pathways:

Axon guidance

Name	PRKG1 View Modifications
Full Name	cGMP-dependent protein kinase 1
Synonyms	cGK 1, cGK1, cGMP-dependent protein kinase I, cGKI \| PRKG1B, PRKGR1A, PRKGR1B
Primary ID	Q13976
Links	- -
Type	protein
Relations	55
Pathways	Axon guidance
Function	Serine/threonine protein kinase that acts as key mediator of the nitric oxide (NO)/cGMP signaling pathway. GMP binding activates PRKG1, which phosphorylates serines and threonines on many cellular proteins. Numerous protein targets for PRKG1 phosphorylation are implicated in modulating cellular calcium, but the contribution of each of these targets may vary substantially among cell types. Proteins that are phosphorylated by PRKG1 regulate platelet activation and adhesion, smooth muscle contraction, cardiac function, gene expression, feedback of the NO-signaling pathway, and other processes involved in several aspects of the CNS like axon guidance, hippocampal and cerebellar learning, circadian rhythm and nociception. Smooth muscle relaxation is mediated through lowering of intracellular free calcium, by desensitization of contractile proteins to calcium, and by decrease in the contractile state of smooth muscle or in platelet activation. Regulates intracellular calcium levels via several pathways

The SIGnaling Network
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