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Summary moleculaire celbiologie (D013083A)

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samenvatting van les 1-30, alle powerpoints van al de verschillende proffen verwerkt in 1 samenvatting

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, LES 1 ( H1)



Qua
sIng = baat verspreiden pas licht
.




bepaald product hoog genoeg
wanneer conc
is
u .




signaalmolecule

✗ Parochie ^


NO =
Mikstofmonoxide ( EDRF) → effect
→ auto uien




werking NO

A-25 → e NOS →
mg → NO (+ citwlline) → gvany laat cyuase ( GTP → CGNP)
CGMP → PKG → toe myosine Light Chain sortatan
.
→ delon myosine lichte
keten
relaxatie gladde spiercel prim + Dec .
boodschappen


negatieve regulatie , 1) CGMP foto dieMerase 1 CGMP → GMP

e) NO → instabiel

• contractie ,
myosine Light Chain kinase


vb .
Sildenafil citaat , -1 CGMP fopodiemerase → extra relaxatie




IJ

, LES 2 ( H1 ) : GPCRD : ( na) adrenaline




mgmpatisch zenuwstelsel →
hartslag bloeddruk , ,
adem îî
→ np sverlening te
→ vet → veteranen
→ glycogeen → glucose


• ( na) adrenaline = catecholamines

ligand voor adrenerge receptoren
L-




Tip → DOPA ( catecheet groep ) →
dopamine → (na) adrenaline
+ OH
-


COO
-


+ Oh ↳
+ CH }

noradrenaline adrenaline
te lv

neurotransmitter hormoon

roymp .
zenuw uit .

b niermerg


endocrien

• redundantie + preiotnopie
t te
2 = effect # functies


× adhenergei vasoconstrictie


adrenerge receptoren
→ B adrenerge , vaso dilatatie
GPCR



GPCR → NHÌ extracell ; COO intrad ; 7 helices hand
-






→ bindt G- eiwit


G- eiwit → ✗
, B 8 Mb eenheid
,

→ ligandbinding → metrumw zigingen → binding
GPCRT G- eiwit → GTP b ✗ → rowitchIs I → ✗ Ipv →✗ los v. GPCR
amplificatie
→✗
op adeny laat cyclase → CAMP / pr → ionkanalen
amplificatie

CAMP AMP
negatieve regulatie →

:


CAMP fotodiemenAR




ijij
ijij

, •
deactivatie G- eiwit , Ga GTP → Ga GDP → Ga pìr → deactivatie


3 eigenschappen 1) t d , GT Pax activiteit v. ✗

2) amplificatie
3) uitdovend
zelf
-





CAMP → PRA → celkern → ⑧ CREB → binding promoten → CBP →

ff transcriptie

pheiokap


glucose vr stellen door adrenaline via CAMP


om • Geen mmthase (PO) → gin glycogeen
✗ nrprlhese
aan → (Anp → pra
1) fonorylan kinase (PO) → glycogeen had (④ .




gwcoxthr mell en



CAMP effect → als pecigiek

→ CAMP → PRA → inh kinase
fosfatase }

von NO roignaalb aan , .
""
→ CGMP → PKG → act .





AKAP → beperking CANP effect in cel
→ verankering PKA




ijij ij

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