CCK2 receptor - Gq

GPCR CLASS (FAMILY)

Class A (Rhodopsin)

GPCR SPECIES

Homo sapiens

GPCR PREFERRED CHAIN

R

G PROTEIN (FAMILY)

Gq/11

G PROTEIN SPECIES

Homo sapiens

PDB CODE

RESOLUTION

3.1 Å

REFERENCE

PUBLICATION DATE

July 20, 2022

3D VIEW

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LIGAND INTERACTIONS

LIGANDS

PHYSIOLOGICAL LIGANDS

CCK-8, desulfated cholecystokinin-8, gastrin-14, CCK-58, desulfated gastrin-17, CCK-39, CCK-33, desulfated gastrin-34, gastrin-34, gastrin-71, desulfated gastrin-71, CCK-4, desulfated gastrin-14, gastrin-17



GPCR - G protein interface interactions



The biflare plot is a modified version of a flareplot, where lines are drawn between an inner concentric circle (Gα residues) and an outer concentric circle (GPCR residues) depicting the interface interactions.
Different interaction types are shown with different line types (aromatic - solid, hydrophobic - dashed, ionic - long dashed, polar - dotted, Van der Waals - dash-dot).
The interactive features include filtering on interaction type, segments, residues and backbone or sidechain interactions.


Interaction cut-off:

Residue numbering:

GPCR-G protein backbone (bb) or sidechain (sc):





Structures

Sequence Color

, , , GPCR
Interaction cut-off: strict (stick), loose (line)

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Interaction
type
GPCR
Segment

AA

Number
Generic
number

segment

AA

Number
Generic
number
Hydrophobic TM2 V 88 2x38 G.H5 Y 350 G.H5.17
Hydrophobic TM3 I 156 3x54 G.H5 N 346 G.H5.13
Van-der-waals TM3 I 156 3x54 G.H5 N 346 G.H5.13
Polar ICL2 R 163 34x54 G.HN E 33 G.HN.51
Hydrophobic ICL2 P 159 34x50 G.H5 L 343 G.H5.10
Hydrophobic TM6 V 331 6x33 G.H5 L 352 G.H5.19
Van-der-waals TM6 V 331 6x33 G.H5 L 352 G.H5.19
Polar ICL2 V 164 34x55 G.HN R 31 G.HN.49
Van-der-waals ICL2 V 164 34x55 G.HN R 31 G.HN.49
Hydrophobic TM2 T 89 2x39 G.H5 N 351 G.H5.18
Hydrophobic ICL2 L 160 34x51 G.H5 F 335 G.H5.02
Van-der-waals ICL2 L 160 34x51 G.H5 F 335 G.H5.02
Hydrophobic TM4 T 167 4x38 G.HN R 31 G.HN.49
Polar ICL2 Q 166 34x57 G.H5 Y 350 G.H5.17
Hydrophobic ICL2 Q 166 34x57 G.H5 Y 350 G.H5.17
Van-der-waals ICL2 Q 166 34x57 G.H5 Y 350 G.H5.17
Polar ICL2 R 163 34x54 G.HN R 32 G.HN.50
Hydrophobic ICL2 R 163 34x54 G.HN R 32 G.HN.50
Hydrophobic TM3 A 155 3x53 G.H5 Y 350 G.H5.17
Van-der-waals TM3 A 155 3x53 G.H5 Y 350 G.H5.17
Hydrophobic TM6 M 334 6x36 G.H5 L 352 G.H5.19
Hydrophobic TM2 T 89 2x39 G.H5 Y 350 G.H5.17
Hydrophobic TM3 I 156 3x54 G.H5 L 347 G.H5.14
Van-der-waals TM3 I 156 3x54 G.H5 L 347 G.H5.14
Hydrophobic ICL2 P 159 34x50 G.H5 I 342 G.H5.09
Van-der-waals ICL2 P 159 34x50 G.H5 I 342 G.H5.09
Hydrophobic ICL2 P 159 34x50 G.H5 K 339 G.H5.06
Hydrophobic ICL2 R 163 34x54 G.HN L 34 G.HN.52
Van-der-waals ICL2 R 163 34x54 G.HN L 34 G.HN.52
Hydrophobic ICL2 L 160 34x51 G.H5 I 342 G.H5.09
Hydrophobic ICL2 L 160 34x51 G.H5 K 339 G.H5.06
Hydrophobic TM5 L 245 5x65 G.H5 L 347 G.H5.14
Polar TM3 R 152 3x50 G.H5 Y 350 G.H5.17
Hydrophobic TM3 R 152 3x50 G.H5 Y 350 G.H5.17
Hydrophobic ICL2 V 164 34x55 G.HN R 32 G.HN.50
Van-der-waals ICL2 V 164 34x55 G.HN R 32 G.HN.50
Hydrophobic ICL2 L 160 34x51 G.S2 V 193 G.S2.05
Hydrophobic ICL2 L 160 34x51 G.HN L 34 G.HN.52
Polar ICL4 H 394 - G.H5 N 351 G.H5.18
Hydrophobic ICL4 H 394 - G.H5 N 351 G.H5.18
Van-der-waals ICL4 H 394 - G.H5 N 351 G.H5.18
Polar TM3 A 155 3x53 G.H5 N 346 G.H5.13
Hydrophobic TM3 A 155 3x53 G.H5 N 346 G.H5.13
Van-der-waals TM3 A 155 3x53 G.H5 N 346 G.H5.13
Polar ICL2 R 163 34x54 G.HN R 31 G.HN.49
Van-der-waals ICL2 R 163 34x54 G.HN R 31 G.HN.49
Hydrophobic TM5 I 241 5x61 G.H5 L 352 G.H5.19
Polar ICL4 H 394 - G.H5 V 353 G.H5.20
Hydrophobic ICL4 H 394 - G.H5 V 353 G.H5.20
Van-der-waals ICL4 H 394 - G.H5 V 353 G.H5.20
Hydrophobic TM3 R 152 3x50 G.H5 L 352 G.H5.19
Van-der-waals TM3 R 152 3x50 G.H5 L 352 G.H5.19
Hydrophobic TM3 E 151 3x49 G.H5 Y 350 G.H5.17
Hydrophobic TM6 V 331 6x33 G.H5 V 353 G.H5.20
Polar TM7 Y 390 7x53 G.H5 N 351 G.H5.18
Hydrophobic TM3 I 156 3x54 G.H5 L 352 G.H5.19
Van-der-waals TM3 I 156 3x54 G.H5 L 352 G.H5.19
Hydrophobic TM3 I 156 3x54 G.H5 L 343 G.H5.10
Hydrophobic TM6 L 335 6x37 G.H5 L 352 G.H5.19
Van-der-waals TM6 L 335 6x37 G.H5 L 352 G.H5.19