S-arrestin - MRGPRX4 complex model

GPCR CLASS (FAMILY)

A (Rhodopsin)

SPECIES

Homo sapiens

ARRESTIN FAMILY

Visual

DATE

2025-02-19

3D VIEW

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Tertiary structure confidence

Chain pLDDT score avg
MRGPRX4 69.8
S-arrestin 80.5
Very high (>90)
Confident (90-70)
Low (70-50)
Very low (<50)
Disordered

PTM Score: 0.6
iPTM Score: 0.5
PAE mean: 18.8


GPCR - Arrestin interface interactions



The biflare plot is a modified version of a flareplot, where lines are drawn between an inner concentric circle (arrestin 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-Arrestin backbone (bb) or sidechain (sc):





Structures

Sequence Color

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

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Interaction
type		 GPCR
Segment
AA
Number		 Generic
number		 Arrestin
segment
AA
Number		 Generic
number
Aromatic ICL2 R 133 34x56 S16 Y 259 C.S16.03
Hydrophobic ICL2 R 133 34x56 S16 Y 259 C.S16.03
Hydrophobic TM6 L 214 6x33 s5s6 I 79 N.s5s6.08
Ionic ICL3 R 207 - s9s10 E 165 N.s9s10.07
Polar ICL3 R 207 - s9s10 E 165 N.s9s10.07
Hydrophobic TM5 L 198 5x61 s5s6 L 81 N.s5s6.10
Polar TM6 P 210 6x29 s9s10 D 166 N.s9s10.08
Hydrophobic TM6 P 210 6x29 s9s10 D 166 N.s9s10.08
Van-der-waals TM6 P 210 6x29 s9s10 D 166 N.s9s10.08
Hydrophobic TM6 L 214 6x33 s5s6 L 81 N.s5s6.10
Van-der-waals TM6 L 214 6x33 s5s6 L 81 N.s5s6.10
Polar ICL2 R 131 34x54 s8s9 S 146 N.s8s9.10
Van-der-waals ICL2 R 131 34x54 s8s9 S 146 N.s8s9.10
Hydrophobic TM7 F 273 7x54 s5s6 V 78 N.s5s6.07
Hydrophobic ICL2 I 128 34x51 S15 V 251 C.S15.14
Van-der-waals ICL2 I 128 34x51 S15 V 251 C.S15.14
Polar ICL1 R 57 - s8s9 Q 141 N.s8s9.05
Van-der-waals ICL1 R 57 - s8s9 Q 141 N.s8s9.05
Ionic ICL3 R 207 - S6 D 86 N.S6.04
Polar ICL3 R 207 - S6 D 86 N.S6.04
Hydrophobic ICL3 R 207 - S6 D 86 N.S6.04
Van-der-waals ICL3 R 207 - S6 D 86 N.S6.04
Polar ICL2 R 133 34x56 S16 Y 258 C.S16.02
Van-der-waals ICL2 R 133 34x56 S16 Y 258 C.S16.02
Hydrophobic ICL2 I 128 34x51 S8 L 136 N.S8.03
Polar ICL2 I 128 34x51 S16 Y 259 C.S16.03
Hydrophobic ICL2 I 128 34x51 S16 Y 259 C.S16.03
Van-der-waals ICL2 I 128 34x51 S16 Y 259 C.S16.03
Polar ICL2 P 127 34x50 S5 Y 71 N.S5.12
Hydrophobic ICL2 P 127 34x50 S5 Y 71 N.S5.12
Van-der-waals ICL2 P 127 34x50 S5 Y 71 N.S5.12
Hydrophobic TM2 I 65 2x43 s5s6 V 78 N.s5s6.07
Van-der-waals TM2 I 65 2x43 s5s6 V 78 N.s5s6.07
Polar ICL2 I 128 34x51 S16 D 257 C.S16.01
Hydrophobic ICL2 I 128 34x51 S16 D 257 C.S16.01
Van-der-waals TM3 S 123 3x53 S5 Y 71 N.S5.12
Polar C-term Q 280 - s5s6 E 74 N.s5s6.03
Van-der-waals C-term Q 280 - s5s6 E 74 N.s5s6.03
Hydrophobic TM7 Y 272 7x53 s5s6 V 78 N.s5s6.07
Van-der-waals TM7 Y 272 7x53 s5s6 V 78 N.s5s6.07
Hydrophobic TM3 R 120 3x50 s5s6 L 81 N.s5s6.10
Polar ICL2 R 131 34x54 S5 Y 71 N.S5.12
Aromatic ICL2 R 131 34x54 S5 Y 71 N.S5.12
Hydrophobic ICL2 R 131 34x54 S5 Y 71 N.S5.12
Van-der-waals ICL2 R 131 34x54 S5 Y 71 N.S5.12
Hydrophobic ICL2 C 132 34x55 S16 Y 259 C.S16.03
Van-der-waals ICL2 C 132 34x55 S16 Y 259 C.S16.03
Hydrophobic TM5 I 202 5x65 s5s6 L 81 N.s5s6.10
Hydrophobic TM3 V 124 3x54 S6 F 83 N.S6.01
Polar ICL2 W 129 34x52 S16 D 257 C.S16.01
Polar TM5 R 201 5x64 s15s16 Y 254 C.s15s16.03
Aromatic TM5 R 201 5x64 s15s16 Y 254 C.s15s16.03
Hydrophobic TM5 R 201 5x64 s15s16 Y 254 C.s15s16.03
Van-der-waals TM5 R 201 5x64 s15s16 Y 254 C.s15s16.03
Hydrophobic TM6 T 217 6x36 s5s6 I 79 N.s5s6.08
Polar TM7 G 276 7x57 s5s6 V 78 N.s5s6.07
Hydrophobic TM7 G 276 7x57 s5s6 V 78 N.s5s6.07
Van-der-waals TM7 G 276 7x57 s5s6 V 78 N.s5s6.07
Polar C-term Q 280 - s5s6 D 77 N.s5s6.06
Hydrophobic C-term Q 280 - s5s6 D 77 N.s5s6.06
Van-der-waals C-term Q 280 - s5s6 D 77 N.s5s6.06
Polar ICL2 W 129 34x52 S16 Y 259 C.S16.03
Hydrophobic ICL2 W 129 34x52 S16 Y 259 C.S16.03
Van-der-waals ICL2 W 129 34x52 S16 Y 259 C.S16.03
Van-der-waals ICL2 R 131 34x54 s5s6 Q 73 N.s5s6.02
Polar TM2 N 59 2x37 s5s6 D 75 N.s5s6.04
Van-der-waals TM2 N 59 2x37 s5s6 D 75 N.s5s6.04
Polar TM2 N 59 2x37 s5s6 Q 73 N.s5s6.02
Polar C-term Q 280 - s5s6 D 75 N.s5s6.04
Hydrophobic TM7 G 276 7x57 s5s6 D 77 N.s5s6.06
Van-der-waals TM7 G 276 7x57 s5s6 D 77 N.s5s6.06
Hydrophobic ICL3 R 207 - S5 A 68 N.S5.09
Van-der-waals ICL3 R 207 - S5 A 68 N.S5.09
Hydrophobic TM3 R 120 3x50 s5s6 I 79 N.s5s6.08
Van-der-waals TM3 R 120 3x50 s5s6 I 79 N.s5s6.08
Polar ICL2 R 131 34x54 s8s9 K 145 N.s8s9.09
Hydrophobic ICL2 R 131 34x54 s8s9 K 145 N.s8s9.09
Van-der-waals ICL2 R 131 34x54 s8s9 K 145 N.s8s9.09
Hydrophobic TM3 W 126 3x56 s15s16 S 255 C.s15s16.04
Hydrophobic ICL3 R 207 - S5 T 66 N.S5.07
Van-der-waals ICL3 R 207 - S5 T 66 N.S5.07
Polar ICL2 R 131 34x54 s5s6 G 72 N.s5s6.01
Hydrophobic ICL2 R 131 34x54 s5s6 G 72 N.s5s6.01
Van-der-waals ICL2 R 131 34x54 s5s6 G 72 N.s5s6.01
Hydrophobic ICL3 R 207 - S6 R 84 N.S6.02
Van-der-waals ICL3 R 207 - S6 R 84 N.S6.02
Hydrophobic ICL2 I 128 34x51 S5 Y 71 N.S5.12
Polar ICL3 R 207 - S6 R 85 N.S6.03
Hydrophobic ICL3 R 207 - S6 R 85 N.S6.03
Hydrophobic ICL3 M 209 - S6 R 84 N.S6.02
Van-der-waals ICL3 M 209 - S6 R 84 N.S6.02
Polar ICL3 S 206 - S6 D 86 N.S6.04
Van-der-waals ICL3 S 206 - S6 D 86 N.S6.04