SMTL ID : 1ytz.2 (1 other biounit)

Crystal structure of skeletal muscle troponin in the Ca2+-activated state

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 3.00 Å

Oligo State

hetero-2-2-2-mer

Ligands

6 x DR6: ALPHA-[4-(1,1,3,3 - TETRAMETHYLBUTYL)PHENYL]-OMEGA-HYDROXY-POLY(OXY-1,2-ETHANEDIYL)(Non-covalent)

DR6.1: 8 residues within 4Å: Chain A: K.35, N.38, I.39, K.50, E.53 Chain D: K.28, R.33 Ligands: DR6.8 4 PLIP interactions: 4 interactions with chain A Hydrophobic interactions: A:K.35 Hydrogen bonds: A:K.35, A:N.38, A:K.50 DR6.2: 5 residues within 4Å: Chain A: K.65 Chain B: Y.43, H.47, K.66, K.70 1 PLIP interactions: 1 interactions with chain B Hydrophobic interactions: B:Y.43 DR6.7: 13 residues within 4Å: Chain B: V.114, R.115, M.116, M.121 Chain C: F.29, L.42, M.46, L.49, G.50, Q.51, I.61, M.82, Q.85 7 PLIP interactions: 6 interactions with chain C, 1 interactions with chain B Hydrophobic interactions: C:F.29, C:L.42, C:L.49, C:I.61, C:Q.85, B:M.121 Hydrogen bonds: C:Q.51 DR6.8: 8 residues within 4Å: Chain A: K.28, R.33 Chain D: K.35, N.38, I.39, K.50, E.53 Ligands: DR6.1 4 PLIP interactions: 4 interactions with chain D Hydrophobic interactions: D:K.35 Hydrogen bonds: D:K.35, D:N.38, D:K.50 DR6.9: 5 residues within 4Å: Chain D: K.65 Chain E: Y.43, H.47, K.66, K.70 1 PLIP interactions: 1 interactions with chain E Hydrophobic interactions: E:Y.43 DR6.14: 13 residues within 4Å: Chain E: V.114, R.115, M.116, M.121 Chain F: F.29, L.42, M.46, L.49, G.50, Q.51, I.61, M.82, Q.85 7 PLIP interactions: 6 interactions with chain F, 1 interactions with chain E Hydrophobic interactions: F:F.29, F:L.42, F:L.49, F:I.61, F:Q.85, E:M.121 Hydrogen bonds: F:Q.51

8 x CA: CALCIUM ION(Non-covalent)

CA.3: 6 residues within 4Å: Chain C: D.106, N.108, D.110, F.112, I.113, E.117 5 PLIP interactions: 5 interactions with chain C Metal complexes: C:D.106, C:D.110, C:F.112, C:E.117, C:E.117 CA.4: 7 residues within 4Å: Chain A: Q.88 Chain C: D.142, N.144, D.146, R.148, I.149, E.153 5 PLIP interactions: 5 interactions with chain C Metal complexes: C:D.142, C:D.146, C:R.148, C:E.153, C:E.153 CA.5: 4 residues within 4Å: Chain C: D.30, D.32, D.36, E.41 5 PLIP interactions: 5 interactions with chain C Metal complexes: C:D.30, C:D.32, C:D.36, C:E.41, C:E.41 CA.6: 6 residues within 4Å: Chain C: D.66, D.68, S.70, T.72, D.74, E.77 3 PLIP interactions: 3 interactions with chain C Metal complexes: C:D.68, C:S.70, C:E.77 CA.10: 6 residues within 4Å: Chain F: D.106, N.108, D.110, F.112, I.113, E.117 5 PLIP interactions: 5 interactions with chain F Metal complexes: F:D.106, F:D.110, F:F.112, F:E.117, F:E.117 CA.11: 7 residues within 4Å: Chain D: Q.88 Chain F: D.142, N.144, D.146, R.148, I.149, E.153 5 PLIP interactions: 5 interactions with chain F Metal complexes: F:D.142, F:D.146, F:R.148, F:E.153, F:E.153 CA.12: 4 residues within 4Å: Chain F: D.30, D.32, D.36, E.41 5 PLIP interactions: 5 interactions with chain F Metal complexes: F:D.30, F:D.32, F:D.36, F:E.41, F:E.41 CA.13: 6 residues within 4Å: Chain F: D.66, D.68, S.70, T.72, D.74, E.77 3 PLIP interactions: 3 interactions with chain F Metal complexes: F:D.68, F:S.70, F:E.77

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Vinogradova, M.V. et al., Ca2+-regulated structural changes in troponin. Proc.Natl.Acad.Sci.Usa (2005)

Release Date

2005-04-12

Peptides

Troponin T: AD
Troponin I: BE
Troponin C: CF

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
T

D
T

B
I

E
I

C
C

F
C

Troponin T

Troponin I

Troponin C

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