SMTL ID : 9mrt.1

Cryo-EM structure of the human TRPM4 channel in a calcium and PI(4,5)P2 bound open state

Coordinates

PDB Format Compare

Method

ELECTRON MICROSCOPY

Oligo State

homo-tetramer

Ligands

4 x PT5: [(2R)-1-octadecanoyloxy-3-[oxidanyl-[(1R,2R,3S,4R,5R,6S)-2,3,6-tris(oxidanyl)-4,5-diphosphonooxy-cyclohexyl]oxy-phospho ryl]oxy-propan-2-yl] (8Z)-icosa-5,8,11,14-tetraenoate(Non-covalent)

PT5.1: 15 residues within 4Å: Chain A: D.662, R.664, S.863, W.864, I.897, M.900, V.901, V.904, L.907, I.920, V.921, S.924, K.925, K.928, Y.1057 15 PLIP interactions: 15 interactions with chain A Hydrophobic interactions: A:I.897, A:M.900, A:V.901, A:V.904, A:L.907, A:I.920 Hydrogen bonds: A:S.924, A:Y.1057, A:Y.1057, A:Q.1061 Salt bridges: A:R.664, A:K.925, A:K.925, A:K.928, A:R.1064 PT5.4: 15 residues within 4Å: Chain B: D.662, R.664, S.863, W.864, I.897, M.900, V.901, V.904, L.907, I.920, V.921, S.924, K.925, K.928, Y.1057 15 PLIP interactions: 15 interactions with chain B Hydrophobic interactions: B:I.897, B:M.900, B:V.901, B:V.904, B:L.907, B:I.920 Hydrogen bonds: B:S.924, B:Y.1057, B:Y.1057, B:Q.1061 Salt bridges: B:R.664, B:K.925, B:K.925, B:K.928, B:R.1064 PT5.7: 15 residues within 4Å: Chain C: D.662, R.664, S.863, W.864, I.897, M.900, V.901, V.904, L.907, I.920, V.921, S.924, K.925, K.928, Y.1057 15 PLIP interactions: 15 interactions with chain C Hydrophobic interactions: C:I.897, C:M.900, C:V.901, C:V.904, C:L.907, C:I.920 Hydrogen bonds: C:S.924, C:Y.1057, C:Y.1057, C:Q.1061 Salt bridges: C:R.664, C:K.925, C:K.925, C:K.928, C:R.1064 PT5.10: 15 residues within 4Å: Chain D: D.662, R.664, S.863, W.864, I.897, M.900, V.901, V.904, L.907, I.920, V.921, S.924, K.925, K.928, Y.1057 15 PLIP interactions: 15 interactions with chain D Hydrophobic interactions: D:I.897, D:M.900, D:V.901, D:V.904, D:L.907, D:I.920 Hydrogen bonds: D:S.924, D:Y.1057, D:Y.1057, D:Q.1061 Salt bridges: D:R.664, D:K.925, D:K.925, D:K.928, D:R.1064

8 x CA: CALCIUM ION(Non-covalent)

CA.2: 5 residues within 4Å: Chain A: E.828, Q.831, N.865, D.868, R.905 3 PLIP interactions: 3 interactions with chain A Metal complexes: A:E.828, A:E.828, A:D.868 CA.3: 5 residues within 4Å: Chain A: D.270, C.385, A.392, D.395, E.396 4 PLIP interactions: 4 interactions with chain A Metal complexes: A:A.392, A:D.395, A:D.395, A:E.396 CA.5: 5 residues within 4Å: Chain B: E.828, Q.831, N.865, D.868, R.905 3 PLIP interactions: 3 interactions with chain B Metal complexes: B:E.828, B:E.828, B:D.868 CA.6: 5 residues within 4Å: Chain B: D.270, C.385, A.392, D.395, E.396 4 PLIP interactions: 4 interactions with chain B Metal complexes: B:A.392, B:D.395, B:D.395, B:E.396 CA.8: 5 residues within 4Å: Chain C: E.828, Q.831, N.865, D.868, R.905 3 PLIP interactions: 3 interactions with chain C Metal complexes: C:E.828, C:E.828, C:D.868 CA.9: 5 residues within 4Å: Chain C: D.270, C.385, A.392, D.395, E.396 4 PLIP interactions: 4 interactions with chain C Metal complexes: C:A.392, C:D.395, C:D.395, C:E.396 CA.11: 5 residues within 4Å: Chain D: E.828, Q.831, N.865, D.868, R.905 3 PLIP interactions: 3 interactions with chain D Metal complexes: D:E.828, D:E.828, D:D.868 CA.12: 5 residues within 4Å: Chain D: D.270, C.385, A.392, D.395, E.396 4 PLIP interactions: 4 interactions with chain D Metal complexes: D:A.392, D:D.395, D:D.395, D:E.396

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Teixeira-Duarte, C.M. et al., Structural landscape of activation, desensitization and inhibition in the human TRPM4 channel. Nat.Struct.Mol.Biol. (2025)

Release Date

2025-10-29

Peptides

Transient receptor potential cation channel subfamily M member 4: ABCD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

B
A

C
C

D
D

Membrane

We predict this structure to be a membrane protein.
Show / Hide

Transient receptor potential cation channel subfamily M member 4

Related Entries With Identical Sequence