Inhibi cja kompetycyjna
description
Transcript of Inhibi cja kompetycyjna
Inhibicja kompetycyjna
S + E ES E + P
I+
EI
0
0.5
1
1.5
2
2.5
-0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1
1/v
, /µ
mo
l/min
1/[S], /mM
-1/Km
1/Vmax
Km/Vmax
S ECI
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1
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0 10 20 30 40 50
v, µ
mo
l/min
[S], mM
No I
+ C I
Km
0.5Vmax
Kmapp
0
0.5
1
1.5
2
2.5
-0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1
1/v
, /µ
mo
l/min
1/[S], /mM
+ C I
No I
-1/Km
1/Vmax
Km/Vmax
-1/Kmapp
Kmapp/Vmax
v Vmax [S]
Km [S]0 v Vmax [S]
Km [S]0
1
v
KmVmax
1
[S]1
Vmax0
1
vKmVmax
1
[S]1
Vmax0
CI – inhibitor kompetycyjny; S – substrat; E – enzym; No I – brak inhibitora
0 0
Inhibicja niekompetycyjna
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0.5
1
1.5
2
2.5
-0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 11
/v, /
µm
ol/m
in1/[S], /mM
-1/Km1/Vmax
Km/Vmax
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1
2
3
4
5
0 10 20 30 40 50
v, µ
mo
l/min
[S], mM
0.5Vmax
Km
0
1
2
3
4
5
0 10 20 30 40 50
v, µ
mo
l/min
[S], mM
No I
+ NCI
Km
0.5Vmax
0
0.5
1
1.5
2
2.5
-0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 11
/v, /
µm
ol/m
in1/[S], /mM
+ NC I
No I-1/Km
1/Vmax
Km/Vmax
Km/Vmaxapp
1/Vmaxapp
0.5Vmax
v Vmax [S]
Km [S]0
1
vKmVmax
1
[S]1
Vmax0v
Vmax [S]
Km ' [S]01
v
KmVmax
1
[S]
'Vmax0
NCIS E
I I+
S + E ES E + P
EI ESI
+
S
NCI – inhibitor niekompetycyjny; S – substrat; E – enzym; No I – brak inhibitora
0 0
0
0.5
1
1.5
2
2.5
-0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1
1/v
, /µ
mo
l/min
1/[S], /mM
-1/Km1/Vmax
Km/Vmax
Inhibicja akompetycyjna
S E UCI S + E ES E + P
EI
I+
v Vmax [S]
Km [S]1
vKmVmax
1
[S]1
Vmaxv
Vmax [S]
Km ' [S]1
vKmVmax
1
[S]
'Vmax
0
1
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4
5
0 10 20 30 40 50
v, µ
mo
l/min
[S], mM
0.5Vmax
Km
0
1
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4
5
0 10 20 30 40 50
v, µ
mo
l/min
[S]. mM
No I
+ UC I
Km
0.5Vmax
Kmapp
0.5Vmax
0
0.5
1
1.5
2
2.5
-0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1
1/v
, /µ
mo
l/min
1/[S]. /mM
+ UC I
No I
-1/Km
1/Vmax
Km/Vmax
1/Vmaxapp
-1/Kmapp
Kmapp/Vmax
app
UCI – inhibitor akompetycyjny; S – substrat; E – enzym; No I – brak inhibitora
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