SMTL ID : 9j5j.1

Cryo-EM structure of BTN2A1-BTN3A1-BTN3A2 in complex with gdTCR

Coordinates

PDB Format Compare

Method

ELECTRON MICROSCOPY

Oligo State

hetero-2-2-1-1-2-mer

Ligands

1 x NAG- NAG- BMA- MAN: alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose

NAG-NAG-BMA-MAN.1: 3 residues within 4Å: Chain E: N.92, H.111, L.112 No protein-ligand interaction detected (PLIP)

1 x NAG- NAG- BMA: beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose

NAG-NAG-BMA.2: 6 residues within 4Å: Chain F: N.92, G.93, H.111, L.112, V.113, Y.143 No protein-ligand interaction detected (PLIP)

1 x H6P: (2E)-4-hydroxy-3-methylbut-2-en-1-yl trihydrogen diphosphate(Non-covalent)

H6P.3: 11 residues within 4Å: Chain D: W.351, H.352, K.394, R.413, L.415, R.470, L.472 Chain E: V.481, T.482, V.483 Chain F: R.449 8 PLIP interactions: 6 interactions with chain D, 2 interactions with chain E Hydrophobic interactions: D:W.351, D:L.472 Hydrogen bonds: D:H.352, E:T.482, E:V.483 Salt bridges: D:K.394, D:K.394, D:R.413

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Zhu, Y. et al., Phosphoantigen-induced inside-out stabilization of butyrophilin receptor complexes drives dimerization-dependent gamma delta TCR activation. Immunity (2025)

Release Date

2025-05-21

Peptides

d domain of gdTCR: AG
g domain of gdTCR: BH
Butyrophilin subfamily 3 member A2: C
Butyrophilin subfamily 3 member A1: D
Butyrophilin subfamily 2 member A1: EF

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

G
H

B
B

H
I

C
C

D
D

E
E

F
G

Membrane

We predict this structure to be a membrane protein.
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d domain of gdTCR

g domain of gdTCR

Butyrophilin subfamily 3 member A2

Butyrophilin subfamily 3 member A1

Butyrophilin subfamily 2 member A1

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