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SMTL ID : 8xql.1

Structure of human class T GPCR TAS2R14-miniGs/gust complex with Aristolochic acid A.

Coordinates

PDB Format Compare

Method

ELECTRON MICROSCOPY

Oligo State

hetero-1-1-1-1-1-mer

Ligands

2 x GOQ: 8-methoxy-6-nitro-naphtho[1,2-e][1,3]benzodioxole-5-carboxylic acid(Non-covalent)

GOQ.1:	15 residues within 4Å: Chain A: L.263 Chain E: A.600, L.603, G.604, Y.607, S.694, M.697, F.698, L.701, G.729, V.733, F.737, H.776, L.780 Ligands: GOQ.2 10 PLIP interactions: 9 interactions with chain E, 1 interactions with chain A Hydrophobic interactions: E:F.698, E:F.698, E:L.701, E:V.733, A:L.263 Hydrogen bonds: E:A.600, E:S.694 Salt bridges: E:H.776 pi-Stacking: E:Y.607, E:Y.607
GOQ.2:	15 residues within 4Å: Chain A: D.251, I.254, K.255, L.258 Chain E: I.611, N.613, L.701, S.704, M.705, H.708, R.709, S.723, A.726, V.730 Ligands: GOQ.1 9 PLIP interactions: 6 interactions with chain E, 3 interactions with chain A Hydrophobic interactions: E:I.611, E:L.701, E:M.705, E:A.726, A:I.254, A:L.258 Salt bridges: E:R.709, E:H.727, A:K.255

1 x CLR: CHOLESTEROL(Non-covalent)

CLR.3:

19 residues within 4Å:

Chain E: I.562, S.565, F.576, F.582, L.585, T.586, W.589, S.676, I.679, V.680, T.684, I.687, Y.740, S.744, F.747, I.762, S.765, M.768, G.769

14 PLIP interactions:

14 interactions with chain E

Hydrophobic interactions: E:I.562, E:F.576, E:F.582, E:L.585, E:W.589, E:W.589, E:W.589, E:I.679, E:V.680, E:V.680, E:I.687, E:F.747, E:I.762, E:M.768

Links

RCSB PDBe PDBe-KB PDBj PDBsum CATH PLIP

Citation

Hu, X. et al., Bitter taste TAS2R14 activation by intracellular tastants and cholesterol. Nature (2024)

Release Date

2024-07-10

Peptides

Guanine nucleotide-binding protein G(t) subunit alpha-3: A
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1: B
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2: C
Nanobody 35: D
Exo-alpha-sialidase,Taste receptor type 2 member 14,LgBiT: E

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
C

D
N

E
R

Membrane

We predict this structure to be a membrane protein.
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Export Alignment

Secondary Structure
NoneDSSPPSIPREDSSpro

Colour Scheme

Fade MismatchesEnhance Mismatches

ChainUnique ChainRainbow2° StructureBfactorBfactor RangeSOAEntropyClustalHydrophobicSizeChargedPolarProlineSer/ThrCysteineAliphaticAromaticNo Colour

Background

3D Viewer
NGLPV2D

Guanine nucleotide-binding protein G(t) subunit alpha-3

Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1

Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2

Nanobody 35

Exo-alpha-sialidase,Taste receptor type 2 member 14,LgBiT

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Cartoon
Tube
Trace
Lines
Ball+Stick
Licorice
Hyperball
Rope
Surface
Spacefill
Outline
Fog

Background

Transparent

Resolution

Low
Medium
High
Extreme

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