PAR1 - 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

2.7 Å

REFERENCE

PUBLICATION DATE

May 7, 2025

3D VIEW

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LIGAND INTERACTIONS

LIGANDS

No ligands

PHYSIOLOGICAL LIGANDS

thrombin (Human), thrombin (Rat), thrombin (Mouse)



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 definitions:

Residue numbering:

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





Structures

Sequence Color

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

NGL is a WebGL based 3D viewer powered by MMTF.

Interaction
type
GPCR
Segment

AA

Number
Generic
number
Gα
segment

AA

Number
Generic
number
Hydrophobic ICL2 L 211 34x54 G.hns1 R 37 G.hns1.02
Van-der-waals ICL2 L 211 34x54 G.hns1 R 37 G.hns1.02
Hydrophobic ICL2 L 211 34x54 G.hns1 R 38 G.hns1.03
Hydrophobic TM3 V 204 3x54 G.H5 L 356 G.H5.23
Van-der-waals TM3 V 204 3x54 G.H5 L 356 G.H5.23
Hydrophobic TM2 A 137 2x39 G.H5 E 362 G.H5.26
Polar TM3 D 199 3x49 G.H5 Y 363 G.H5.26
Hydrophobic TM3 D 199 3x49 G.H5 Y 363 G.H5.26
Van-der-waals TM3 D 199 3x49 G.H5 Y 363 G.H5.26
Hydrophobic TM6 A 311 6x34 G.H5 V 366 G.H5.26
Hydrophobic TM6 K 308 6x31 G.H5 L 356 G.H5.23
Hydrophobic TM6 A 311 6x34 G.H5 L 360 G.H5.26
Polar ICL2 S 212 34x55 G.hns1 R 38 G.hns1.03
Hydrophobic ICL2 S 212 34x55 G.hns1 R 38 G.hns1.03
Van-der-waals ICL2 S 212 34x55 G.hns1 R 38 G.hns1.03
Hydrophobic TM2 A 137 2x39 G.H5 Y 363 G.H5.26
Van-der-waals TM2 A 137 2x39 G.H5 Y 363 G.H5.26
Hydrophobic ICL2 M 208 34x51 G.H5 K 352 G.H5.19
Van-der-waals ICL2 M 208 34x51 G.H5 K 352 G.H5.19
Hydrophobic ICL2 M 208 34x51 G.H5 I 355 G.H5.22
Van-der-waals ICL2 M 208 34x51 G.H5 I 355 G.H5.22
Hydrophobic TM5 L 297 5x65 G.H5 L 360 G.H5.26
Polar ICL2 R 214 34x57 G.H5 Y 363 G.H5.26
Hydrophobic ICL2 R 214 34x57 G.H5 Y 363 G.H5.26
Van-der-waals ICL2 R 214 34x57 G.H5 Y 363 G.H5.26
Polar ICL3 S 306 - G.H5 Q 357 G.H5.24
Hydrophobic ICL3 S 306 - G.H5 Q 357 G.H5.24
Van-der-waals ICL3 S 306 - G.H5 Q 357 G.H5.24
Hydrophobic TM3 I 196 3x46 G.H5 Y 363 G.H5.26
Hydrophobic ICL2 M 208 34x51 G.S3 V 199 G.S3.01
Hydrophobic TM6 R 310 6x33 G.H5 V 366 G.H5.26
Van-der-waals TM6 R 310 6x33 G.H5 V 366 G.H5.26
Hydrophobic TM6 L 314 6x37 G.H5 L 365 G.H5.26
Polar TM3 A 203 3x53 G.H5 N 359 G.H5.26
Hydrophobic TM3 A 203 3x53 G.H5 N 359 G.H5.26
Van-der-waals TM3 A 203 3x53 G.H5 N 359 G.H5.26
Hydrophobic ICL2 P 207 34x50 G.H5 I 355 G.H5.22
Hydrophobic ICL2 M 208 34x51 G.S1 L 40 G.S1.02
Hydrophobic TM2 M 141 2x43 G.H5 N 364 G.H5.26
Van-der-waals TM2 M 141 2x43 G.H5 N 364 G.H5.26
Hydrophobic TM3 V 204 3x54 G.H5 L 360 G.H5.26
Van-der-waals TM3 V 204 3x54 G.H5 L 360 G.H5.26
Hydrophobic ICL2 M 208 34x51 G.H5 F 348 G.H5.15
Van-der-waals ICL2 M 208 34x51 G.H5 F 348 G.H5.15
Polar ICL2 R 214 34x57 G.H5 N 359 G.H5.26
Hydrophobic ICL2 M 208 34x51 G.H5 C 351 G.H5.18
Hydrophobic ICL3 V 302 - G.H5 L 356 G.H5.23
Van-der-waals ICL3 V 302 - G.H5 L 356 G.H5.23
Polar TM6 A 311 6x34 G.H5 L 365 G.H5.26
Hydrophobic TM6 A 311 6x34 G.H5 L 365 G.H5.26
Van-der-waals TM6 A 311 6x34 G.H5 L 365 G.H5.26
Ionic ICL3 R 305 - G.H5 D 353 G.H5.20
Polar ICL3 R 305 - G.H5 D 353 G.H5.20
Hydrophobic ICL3 R 305 - G.H5 D 353 G.H5.20
Van-der-waals ICL3 R 305 - G.H5 D 353 G.H5.20
Hydrophobic ICL2 L 211 34x54 G.H5 I 355 G.H5.22
Hydrophobic ICL2 M 208 34x51 G.S3 F 201 G.S3.03
Ionic TM6 K 308 6x31 G.H5 D 353 G.H5.20
Polar TM6 K 308 6x31 G.H5 D 353 G.H5.20
Hydrophobic TM6 K 308 6x31 G.H5 D 353 G.H5.20
Van-der-waals TM6 K 308 6x31 G.H5 D 353 G.H5.20
Hydrophobic ICL3 R 305 - G.s6h5 Y 332 G.s6h5.04
Hydrophobic ICL2 P 207 34x50 G.H5 L 356 G.H5.23
Hydrophobic ICL2 L 211 34x54 G.S1 L 40 G.S1.02
Polar TM3 R 200 3x50 G.H5 Y 363 G.H5.26
Hydrophobic TM3 R 200 3x50 G.H5 Y 363 G.H5.26
Van-der-waals TM3 R 200 3x50 G.H5 Y 363 G.H5.26
Hydrophobic C-term S 375 - G.H5 N 364 G.H5.26
Van-der-waals C-term S 375 - G.H5 N 364 G.H5.26
Polar TM6 K 308 6x31 G.H5 Q 357 G.H5.24
Van-der-waals TM6 K 308 6x31 G.H5 Q 357 G.H5.24
Hydrophobic TM2 M 141 2x43 G.H5 Y 363 G.H5.26
Hydrophobic ICL2 P 207 34x50 G.H5 K 352 G.H5.19
Hydrophobic TM5 L 297 5x65 G.H5 L 356 G.H5.23
Hydrophobic TM3 R 200 3x50 G.H5 L 365 G.H5.26
Van-der-waals TM3 R 200 3x50 G.H5 L 365 G.H5.26
Hydrophobic TM3 A 203 3x53 G.H5 Y 363 G.H5.26