Toggle navigation
SMPDB
Browse SMPDB
Pathways
Table of Primary Pathways
Compounds
Proteins
Search
TextQuery Search Instructions
SMP-MAP Advanced Search
ChemQuery Structure Search
Molecular Weight Search
Sequence Search
About
About SMPDB
Release Notes
Citing SMPDB
Statistics
Other Databases
Pathway Legend
Pathway Category Definitions
PathWhiz
Downloads
Contact Us
Quantitative metabolomics services for biomarker discovery and validation.
Specializing in ready to use metabolomics kits.
Your source for quantitative metabolomics technologies and bioinformatics.
Loading Pathway...
Error: Pathway image not found.
cAMP-dependent
protein kinase
type II-beta
regulatory
subunit
Sodium-
dependent
dopamine
transporter
D(4) dopamine
receptor
cAMP-dependent
protein kinase
catalytic
subunit alpha
cAMP-dependent
protein kinase
catalytic
subunit beta
cAMP-dependent
protein kinase
type I-alpha
regulatory
subunit
cAMP-dependent
protein kinase
catalytic
subunit gamma
cAMP-dependent
protein kinase
type I-beta
regulatory
subunit
cAMP-dependent
protein kinase
type II-alpha
regulatory
subunit
Guanine
nucleotide-
binding protein
G(I)/G(S)/G(T)
subunit beta-1
Gγ
Adenylate
cyclase type 10
Synaptic
vesicular amine
transporter
Voltage-
dependent
calcium channel
subunit
alpha-2/delta-1
Voltage-
dependent
calcium channel
subunit
alpha-2/delta-2
Voltage-
dependent
N-type calcium
channel subunit
alpha-1B
Tyrosine
3-monooxygenase
Aromatic-L-
amino-acid
decarboxylase
Methylphenidate
Dopamine
Ca
+
Dopamine
cAMP
Dopamine
Ca
+
Methylphenidate
Methylphenidate
L-Tyrosine
L-Dopa
CO
2
ATP
Magnesium
Fe2+
Pyridoxal
5'-phosphate
Guanine
nucleotide-
binding protein
G(i) subunit
alpha-1
Neuronal
Excitability
The inhibition of dopamine
reuptake receptors by
Methylphenidate causes more
dopamine to accumulate in
the synapse, causing the
continual activation of the
D4 Dopamine receptor
Activation of D4 dopamine
receptors activates the Gi
signalling cascade which
leads to reduced cAMP.
Presynaptic Neuron
Cytosol
Synaptic Vesicle
Postsynaptic Neuron
Cytosol
Dopamine is produced in the
Ventral Tegmental Area of
the brain
Prefrontal Cortex
Reduced cAMP results in
decreased neural
excitability. This results
in reduced movement and
impulsivity. Although the
exact mechanisms are
unknown.
Synapse
Prefrontal Cortex
Increased dopamine activates
D4 dopamine receptors in the
prefrontal cortex which are
the main receptor involved
in ADHD
In low doses,
Methylphenidate selectively
activates dopamine
neurotransmission,
Blood-Brain Barrier
Diffusion
PRKAR2B
SLC6A3
DRD4
PRKACA
PRKACB
PRKAR1A
PRKACG
PRKAR1B
PRKAR2A
GNB1
GNG2
ADCY10
SLC18A2
CACNA2D1
CACNA2D2
CACNA1B
TH
DDC
Methylphenidate
Dopamine
Calcium
Dopamine
cAMP
Dopamine
Calcium
Methylphenidate
Methylphenidate
L-Tyrosine
L-Dopa
Carbon dioxide
Adenosine
triphosphate
GNAI1
Neuronal
Excitability
PRKAR2B
SLC6A3
DRD4
PRKACA
PRKACB
PRKAR1A
PRKACG
PRKAR1B
PRKAR2A
GNB1
GNG2
ADCY10
SLC18A2
CACNA2D1
CACNA2D2
CACNA1B
TH
DDC
Phenidy
LDP
Ca
+
LDP
cAMP
LDP
Ca
+
Phenidy
Phenidy
Tyr
L-Dopa
CO
2
ATP
Mg2+
Fe2+
Pyr-5'P
GNAI1
Neu Exc
The inhibition of dopamine
reuptake receptors by
Methylphenidate causes more
dopamine to accumulate in
the synapse, causing the
continual activation of the
D4 Dopamine receptor
Activation of D4 dopamine
receptors activates the Gi
signalling cascade which
leads to reduced cAMP.
Presynaptic Neuron
Cytosol
Synaptic Vesicle
Postsynaptic Neuron
Cytosol
Dopamine is produced in the
Ventral Tegmental Area of
the brain
Prefrontal Cortex
Reduced cAMP results in
decreased neural
excitability. This results
in reduced movement and
impulsivity. Although the
exact mechanisms are
unknown.
Synapse
Prefrontal Cortex
Increased dopamine activates
D4 dopamine receptors in the
prefrontal cortex which are
the main receptor involved
in ADHD
In low doses,
Methylphenidate selectively
activates dopamine
neurotransmission,
Blood-Brain Barrier
Diffusion