Beta-arrestin-2 - VPAC1 receptor complex model

GPCR CLASS (FAMILY)

B1 (Secretin)

SPECIES

Homo sapiens

ARRESTIN FAMILY

Beta

DATE

2025-02-19

3D VIEW

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Tertiary structure confidence

Chain pLDDT score avg
VPAC1 76.1
Beta-arrestin-2 79.0
Very high (>90)
Confident (90-70)
Low (70-50)
Very low (<50)
Disordered

PTM Score: 0.7
iPTM Score: 0.6
PAE mean: 17.1


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
Polar ICL2 F 248 - S16 Y 250 C.S16.03
Aromatic ICL2 F 248 - S16 Y 250 C.S16.03
Hydrophobic ICL2 F 248 - S16 Y 250 C.S16.03
Van-der-waals ICL2 F 248 - S16 Y 250 C.S16.03
Ionic H8 R 401 8x56 s20c D 406 C.s20c.16
Polar H8 R 401 8x56 s20c D 406 C.s20c.16
Van-der-waals H8 R 401 8x56 s20c D 406 C.s20c.16
Ionic TM4 R 252 4x40 s8s9 E 135 N.s8s9.05
Polar TM4 R 252 4x40 s8s9 E 135 N.s8s9.05
Hydrophobic TM4 R 252 4x40 s8s9 E 135 N.s8s9.05
Van-der-waals TM4 R 252 4x40 s8s9 E 135 N.s8s9.05
Hydrophobic TM5 K 322 5x64 s15s16 F 245 C.s15s16.03
Van-der-waals TM5 K 322 5x64 s15s16 F 245 C.s15s16.03
Hydrophobic ICL2 F 248 - s8s9 A 140 N.s8s9.10
Van-der-waals ICL2 F 248 - s8s9 A 140 N.s8s9.10
Hydrophobic TM2 R 174 2x46 s5s6 D 68 N.s5s6.04
Polar TM4 S 250 4x38 s17s18 R 286 C.s17s18.11
Hydrophobic TM6 S 342 6x41 s5s6 L 74 N.s5s6.10
Hydrophobic TM3 L 240 3x54 s5s6 L 72 N.s5s6.08
Van-der-waals TM3 L 240 3x54 s5s6 L 72 N.s5s6.08
Hydrophobic TM3 L 243 3x57 s5s6 R 66 N.s5s6.02
Hydrophobic TM5 K 322 5x64 S5 Y 64 N.S5.12
Polar TM6 S 342 6x41 s5s6 L 72 N.s5s6.08
Van-der-waals TM6 S 342 6x41 s5s6 L 72 N.s5s6.08
Hydrophobic ICL3 D 327 - S6 K 78 N.S6.03
Van-der-waals ICL3 D 327 - S6 K 78 N.S6.03
Hydrophobic H8 E 398 8x53 s20c L 408 C.s20c.18
Ionic ICL1 K 169 12x49 s20c D 406 C.s20c.16
Polar ICL1 K 169 12x49 s20c D 406 C.s20c.16
Hydrophobic ICL1 K 169 12x49 s20c D 406 C.s20c.16
Van-der-waals ICL1 K 169 12x49 s20c D 406 C.s20c.16
Polar ICL2 S 247 - S16 Y 250 C.S16.03
Van-der-waals ICL2 S 247 - S16 Y 250 C.S16.03
Hydrophobic TM2 R 174 2x46 s5s6 V 71 N.s5s6.07
Van-der-waals TM2 R 174 2x46 s5s6 V 71 N.s5s6.07
Polar ICL1 H 171 12x51 s20c C 409 C.s20c.19
Hydrophobic ICL1 H 171 12x51 s20c C 409 C.s20c.19
Van-der-waals ICL1 H 171 12x51 s20c C 409 C.s20c.19
Hydrophobic TM3 L 244 3x58 S6 F 76 N.S6.01
Van-der-waals TM3 L 244 3x58 S6 F 76 N.S6.01
Polar ICL2 S 247 - s5s6 R 66 N.s5s6.02
Hydrophobic TM5 L 319 5x61 s5s6 L 74 N.s5s6.10
Van-der-waals TM5 L 319 5x61 s5s6 L 74 N.s5s6.10
Hydrophobic ICL3 I 328 - S6 I 82 N.S6.07
Polar ICL3 D 327 - S6 D 79 N.S6.04
Van-der-waals ICL3 D 327 - S6 D 79 N.S6.04
Hydrophobic TM6 L 346 6x45 s5s6 L 72 N.s5s6.08
Van-der-waals TM6 L 346 6x45 s5s6 L 72 N.s5s6.08
Polar ICL2 F 249 - s5s6 R 66 N.s5s6.02
Van-der-waals ICL2 F 249 - s5s6 R 66 N.s5s6.02
Hydrophobic ICL3 R 329 - S6 I 82 N.S6.07
Hydrophobic TM3 L 244 3x58 s5s6 L 69 N.s5s6.05
Van-der-waals TM3 L 244 3x58 s5s6 L 69 N.s5s6.05
Hydrophobic ICL3 I 328 - S6 F 81 N.S6.06
Van-der-waals TM2 R 174 2x46 s20c C 409 C.s20c.19
Hydrophobic TM3 L 240 3x54 s5s6 L 69 N.s5s6.05
Van-der-waals TM3 L 240 3x54 s5s6 L 69 N.s5s6.05
Hydrophobic TM5 L 319 5x61 S6 F 76 N.S6.01
Hydrophobic ICL3 I 328 - S6 L 80 N.S6.05
Hydrophobic H8 E 394 8x49 s20c L 408 C.s20c.18
Van-der-waals H8 E 394 8x49 s20c L 408 C.s20c.18
Polar ICL2 S 247 - S5 Y 64 N.S5.12
Hydrophobic ICL2 S 247 - S5 Y 64 N.S5.12
Van-der-waals ICL2 S 247 - S5 Y 64 N.S5.12
Aromatic TM5 K 322 5x64 S6 F 76 N.S6.01
Hydrophobic TM5 K 322 5x64 S6 F 76 N.S6.01
Van-der-waals TM5 K 322 5x64 S6 F 76 N.S6.01
Hydrophobic ICL1 K 169 12x49 s20c L 408 C.s20c.18
Van-der-waals ICL1 K 169 12x49 s20c L 408 C.s20c.18
Polar TM2 C 172 2x44 s20c C 409 C.s20c.19
Hydrophobic TM2 C 172 2x44 s20c C 409 C.s20c.19
Van-der-waals TM2 C 172 2x44 s20c C 409 C.s20c.19
Hydrophobic ICL3 P 325 - S6 K 78 N.S6.03
Ionic TM4 E 251 4x39 s5s6 R 66 N.s5s6.02
Polar TM4 E 251 4x39 s5s6 R 66 N.s5s6.02
Hydrophobic TM4 E 251 4x39 s5s6 R 66 N.s5s6.02
Van-der-waals TM4 E 251 4x39 s5s6 R 66 N.s5s6.02
Hydrophobic ICL2 F 248 - S15 I 242 C.S15.14
Van-der-waals ICL2 F 248 - S15 I 242 C.S15.14
Polar TM3 A 245 3x59 s15s16 S 246 C.s15s16.04
Van-der-waals TM3 A 245 3x59 s15s16 S 246 C.s15s16.04
Hydrophobic ICL2 F 248 - S9 C 141 N.S9.01
Van-der-waals ICL2 F 248 - S9 C 141 N.S9.01
Hydrophobic TM7 Y 388 7x57 s5s6 V 71 N.s5s6.07
Hydrophobic ICL1 L 170 12x50 s20c C 409 C.s20c.19
Van-der-waals ICL1 L 170 12x50 s20c C 409 C.s20c.19
Polar ICL1 K 169 12x49 s20c C 409 C.s20c.19
Hydrophobic ICL1 K 169 12x49 s20c C 409 C.s20c.19
Van-der-waals ICL1 K 169 12x49 s20c C 409 C.s20c.19
Hydrophobic ICL2 F 248 - s17s18 G 287 C.s17s18.12
Hydrophobic ICL2 F 248 - S8 L 130 N.S8.03
Van-der-waals ICL2 F 248 - S8 L 130 N.S8.03
Polar TM3 L 244 3x58 S5 Y 64 N.S5.12
Hydrophobic ICL3 P 325 - s15s16 F 245 C.s15s16.03
Van-der-waals ICL3 P 325 - s15s16 F 245 C.s15s16.03