CCK2 receptor (gasr_human)
FAMILY
Class A (Rhodopsin) Peptide receptors Cholecystokinin receptors CCK2 receptor
GENE
CCKBR (CCKRB)
ORGANISM
Human (Homo sapiens)
ALT. NAMES
Gastrin/cholecystokinin type B receptor, CCK-B receptor, CCK-BR, Cholecystokinin-2 receptor, CCK2-R
SOURCE
SWISSPROT
SEQUENCE
N-term | |||||||||
M
|
E
|
L
|
L
|
K
|
L
|
N
|
R
|
S
|
V
|
10 |
Q
|
G
|
T
|
G
|
P
|
G
|
P
|
G
|
A
|
S
|
20 |
L
|
C
|
R
|
P
|
G
|
A
|
P
|
L
|
L
|
N
|
30 |
S
|
S
|
S
|
V
|
G
|
N
|
L
|
S
|
C
|
E
|
40 |
P
|
P
|
R
|
I
|
R
|
G
|
A
|
G
|
T
|
R
|
50 |
TM1 | |||||||||
E
|
L
|
E
|
L
|
A
|
I
|
R
|
I
|
T
|
L
|
60 |
Y
|
A
|
V
|
I
|
F
|
L
|
M
|
S
|
V
|
G
|
70 |
G
|
N
|
M
|
L
|
I
|
I
|
V
|
V
|
L
|
G
|
80 |
ICL1 | TM2 | ||||||||
L
|
S
|
R
|
R
|
L
|
R
|
T
|
V
|
T
|
N
|
90 |
A
|
F
|
L
|
L
|
S
|
L
|
A
|
V
|
S
|
D
|
100 |
L
|
L
|
L
|
A
|
V
|
A
|
C
|
M
|
P
|
F
|
110 |
T
|
L
|
L
|
P
|
N
|
L
|
M
|
G
|
T
|
F
|
120 |
ECL1 | TM3 | ||||||||
I
|
F
|
G
|
T
|
V
|
I
|
C
|
K
|
A
|
V
|
130 |
S
|
Y
|
L
|
M
|
G
|
V
|
S
|
V
|
S
|
V
|
140 |
S
|
T
|
L
|
S
|
L
|
V
|
A
|
I
|
A
|
L
|
150 |
E
|
R
|
Y
|
S
|
A
|
I
|
C
|
R
|
P
|
L
|
160 |
ICL2 | TM4 | ||||||||
Q
|
A
|
R
|
V
|
W
|
Q
|
T
|
R
|
S
|
H
|
170 |
A
|
A
|
R
|
V
|
I
|
V
|
A
|
T
|
W
|
L
|
180 |
L
|
S
|
G
|
L
|
L
|
M
|
V
|
P
|
Y
|
P
|
190 |
ECL2 | |||||||||
V
|
Y
|
T
|
V
|
V
|
Q
|
P
|
V
|
G
|
P
|
200 |
R
|
V
|
L
|
Q
|
C
|
V
|
H
|
R
|
W
|
P
|
210 |
TM5 | |||||||||
S
|
A
|
R
|
V
|
R
|
Q
|
T
|
W
|
S
|
V
|
220 |
L
|
L
|
L
|
L
|
L
|
L
|
F
|
F
|
I
|
P
|
230 |
G
|
V
|
V
|
M
|
A
|
V
|
A
|
Y
|
G
|
L
|
240 |
I
|
S
|
R
|
E
|
L
|
Y
|
L
|
G
|
L
|
R
|
250 |
ICL3 | |||||||||
F
|
D
|
G
|
D
|
S
|
D
|
S
|
D
|
S
|
Q
|
260 |
S
|
R
|
V
|
R
|
N
|
Q
|
G
|
G
|
L
|
P
|
270 |
G
|
A
|
V
|
H
|
Q
|
N
|
G
|
R
|
C
|
R
|
280 |
P
|
E
|
T
|
G
|
A
|
V
|
G
|
E
|
D
|
S
|
290 |
D
|
G
|
C
|
Y
|
V
|
Q
|
L
|
P
|
R
|
S
|
300 |
R
|
P
|
A
|
L
|
E
|
L
|
T
|
A
|
L
|
T
|
310 |
A
|
P
|
G
|
P
|
G
|
S
|
G
|
S
|
R
|
P
|
320 |
TM6 | |||||||||
T
|
Q
|
A
|
K
|
L
|
L
|
A
|
K
|
K
|
R
|
330 |
V
|
V
|
R
|
M
|
L
|
L
|
V
|
I
|
V
|
V
|
340 |
L
|
F
|
F
|
L
|
C
|
W
|
L
|
P
|
V
|
Y
|
350 |
S
|
A
|
N
|
T
|
W
|
R
|
A
|
F
|
D
|
G
|
360 |
ECL3 | |||||||||
P
|
G
|
A
|
H
|
R
|
A
|
L
|
S
|
G
|
A
|
370 |
TM7 | |||||||||
P
|
I
|
S
|
F
|
I
|
H
|
L
|
L
|
S
|
Y
|
380 |
A
|
S
|
A
|
C
|
V
|
N
|
P
|
L
|
V
|
Y
|
390 |
H8 | |||||||||
C
|
F
|
M
|
H
|
R
|
R
|
F
|
R
|
Q
|
A
|
400 |
C
|
L
|
E
|
T
|
C
|
A
|
R
|
C
|
C
|
P
|
410 |
C-term | |||||||||
R
|
P
|
P
|
R
|
A
|
R
|
P
|
R
|
A
|
L
|
420 |
P
|
D
|
E
|
D
|
P
|
P
|
T
|
P
|
S
|
I
|
430 |
A
|
S
|
L
|
S
|
R
|
L
|
S
|
Y
|
T
|
T
|
440 |
I
|
S
|
T
|
L
|
G
|
P
|
G
|
DIAGRAMS
Pick color:
Invitro Mutant Data: Increased binding/potency: >5-fold, >10-fold; Reduced binding/potency: >5-fold, >10-fold; No/low effect (<5-fold); and N/A
Pick color:
Invitro Mutant Data: Increased binding/potency: >5-fold, >10-fold; Reduced binding/potency: >5-fold, >10-fold; No/low effect (<5-fold); and N/A
MUTATIONS
PHYSIOLOGICAL LIGANDS
desulfated cholecystokinin-8, CCK-39, desulfated gastrin-17, desulfated gastrin-14, CCK-4, gastrin-17, desulfated gastrin-71, gastrin-14, CCK-8, gastrin-71, CCK-33, gastrin-34, CCK-58, desulfated gastrin-34