Genes and epilepsy Flashcards
Genes and Epilepsy
KCNQ2
K channel (responsible for M current; which prevents excessive firing) - Benign familial neonatal seizures
KCNQ3
K channel (responsible for M current; which prevents excessive firing) - Benign familial neonatal seizures
SCN1A
alpha1 subunit - Na channel - Epilepsy with febrile seizures plus (EFS+) - Dravet syndrome; Severe myoclonic epilepsy of infancy and related syndromes; Hemiplegic migraine
SCN2A
alpha2 subunit Na channel Epilepsy with febrile seizures plus (EFS+) - Benign familial neonatal infantile seizures; Severe myoclonic epilepsy of infancy and related syndromes
SCN1B
beta1 subunit - Na channel - Epilepsy with febrile seizures plus (EFS+); Severe myoclonic epilepsy of infancy and related syndromes
SCN9A
alpha9 subunit Na channel - Epilepsy with febrile seizures plus (EFS+)
GABRD
GABA a receptor 2 subunit - Epilepsy with febrile seizures plus (EFS+)
GABRG2
GABA a receptor _2 subunit - Epilepsy with febrile seizures plus (EFS+); Childhood absence epilepsy
GABRA1
GABA a receptor 1 subunit - Childhood absence epilepsy; Juvenile myoclonic epilepsy
ATP1A2
ATP - familial hemiplegic migraine with benign infantile seizures; Hemiplegic migraines
GL13
Palister Hall syndrome (hamartomas and polydactily)
EJM1
JME
What epilepsy disorder is associated with this gene mutation? EJM2 gene
JME
CHRNA4
nicotinic acetylcholine receptor (nAChR) 4-subunit protein - ADNFLE
CHRNB2
nAChR _2-subunit protein - ADNFLE
CHRNA2
nAChR 4-subunit protein - ADNFLE
LGI1
protein called leucine-rich glioma inactivated 1 (Lgi1) or epitempin - Familial lateral temporal lobe epilepsy
Six susceptibility foci (FEB 1 2 3 4 5 6)
Febrile seizures
ARX
Aristaless-related homeobox - transcription factor related with brain development - Ohtahara and West syndrome
CDKL5
Serine threonine kinase involved in brain development. Associated with dendritic spine structure - Ohtahara and West syndrome
STXBP1
Involved in fusion of secretory vesicles to the presynaptic membrane - Ohtahara and West syndrome
LCB1 PCDH19 KCTD7 BCKDK SYN1 GRIN2B GRIN2A TNK2 KCNQ2 PTEN
Early onset epilepsies associated with autism
PRRT2
Proline-rich transmembrane protein - Infantile convulsions with paroxysmal kinesigenic dyskinesia
TBC1D24
Protein that regulates endo- and exocytosis - Familial infantile myoclonic epilepsy (FIME)
DEPC5
Protein in the neuron soma with unknown function - Familial focal epilepsy with variable foci
LIS1
platelet activating factor acetohydrolase - Lissencephaly
X-linked DCX
doublecortin - Lissencephaly
TUBA1A
tubulin - Lissencephaly and polymivrogyria
TUBA2B
tubulin - Lissencephaly and polymivrogyria
CACNA1A
Ca channel - IGE; Hemiplegic migraine
CACNAB4
Ca channel - IGE; JME
CACNA1H
Ca channel- JME; CAE
CLCN2
Cl channel - CAE; Epilepsy with tonic clonic seizures (on awakening)
P13-KT signaling pathway
Multiple components of the growth factor receptor cascade - Megalencephaly and hemimegalencephaly
UBE3A
Ubequitin ligase 3A - Angelman Sd
TSC1
Hamartin
Tuberous Sclerosis
TSC2
Tuberin
Tuberous Sclerosis
SLC2A1
Glut1 protein
Glut1 disease
GLDC
Glycine dehydrogenase
Glycine encephalopathy (the majority of the cases)
GCST or AMT
Amonitransferase unit
Glycine encephalopathy (about 20% of cases)
GCSH
Glycine cleavage system protein H
Glycine encephalopathy (less than 1%)