SMTL ID : 8t1j.1

Uncrosslinked nNOS-CaM oxygenase homodimer

Coordinates

PDB Format Compare

Method

ELECTRON MICROSCOPY

Oligo State

homo-dimer

Ligands

1 x ZN: ZINC ION(Non-covalent)

ZN.1: 4 residues within 4Å: Chain A: C.326, C.331 Chain B: C.326, C.331 4 PLIP interactions: 2 interactions with chain A, 2 interactions with chain B Metal complexes: A:C.326, A:C.331, B:C.326, B:C.331

2 x ARG: ARGININE(Non-covalent)

ARG.2: 8 residues within 4Å: Chain A: Q.478, P.565, V.567, W.587, Y.588, E.592, D.597 Ligands: HEM.4 9 PLIP interactions: 2 Ligand-Ligand interactions, 7 interactions with chain A Hydrogen bonds: R.2, R.2, A:Q.478, A:W.587, A:W.587, A:M.589 Hydrophobic interactions: A:P.565, A:V.567 Salt bridges: A:E.592 ARG.5: 8 residues within 4Å: Chain B: Q.478, P.565, V.567, W.587, Y.588, M.589, E.592 Ligands: HEM.7 8 PLIP interactions: 8 interactions with chain B, Hydrophobic interactions: B:V.567 Hydrogen bonds: B:Q.478, B:Q.478, B:W.587, B:W.587, B:Y.588, B:M.589 Salt bridges: B:E.592

2 x H4B: 5,6,7,8-TETRAHYDROBIOPTERIN(Non-covalent)

H4B.3: 10 residues within 4Å: Chain A: S.334, R.596, V.677, W.678 Chain B: W.676, F.691, H.692, Q.693, E.694 Ligands: HEM.4 8 PLIP interactions: 7 interactions with chain A, 1 interactions with chain B Hydrogen bonds: A:R.596, A:R.596, A:V.677, A:W.678 pi-Stacking: A:W.678, A:W.678 pi-Cation interactions: A:W.678 Hydrophobic interactions: B:E.694 H4B.6: 11 residues within 4Å: Chain A: W.676, F.691, H.692, Q.693, E.694 Chain B: S.334, M.336, R.596, V.677, W.678 Ligands: HEM.7 8 PLIP interactions: 7 interactions with chain B, 1 interactions with chain A Hydrogen bonds: B:R.596, B:R.596, B:V.677, B:W.678 pi-Stacking: B:W.678, B:W.678 pi-Cation interactions: B:W.678 Hydrophobic interactions: A:E.694

2 x HEM: PROTOPORPHYRIN IX CONTAINING FE(Non-covalent)

HEM.4: 20 residues within 4Å: Chain A: W.409, A.412, R.414, C.415, V.416, G.417, Q.420, L.424, S.457, M.570, F.584, S.585, G.586, W.587, E.592, W.678, F.704, Y.706 Ligands: ARG.2, H4B.3 19 PLIP interactions: 16 interactions with chain A, 3 Ligand-Ligand interactions Hydrophobic interactions: A:W.409, A:W.409, A:W.409, A:A.412, A:Q.420, A:L.424, A:F.584, A:F.584, A:W.587, A:W.587, A:F.704, A:F.704, A:F.704, R.2 Hydrogen bonds: A:Y.706, R.2 pi-Stacking: A:W.409 Metal complexes: A:C.415 pi-Cation interactions: R.2 HEM.7: 20 residues within 4Å: Chain B: W.409, A.412, R.414, C.415, V.416, G.417, L.424, S.457, M.570, F.584, S.585, G.586, W.587, M.589, E.592, W.678, F.704, Y.706 Ligands: ARG.5, H4B.6 17 PLIP interactions: 14 interactions with chain B, 3 Ligand-Ligand interactions Hydrophobic interactions: B:W.409, B:W.409, B:A.412, B:L.424, B:F.584, B:F.584, B:F.584, B:W.587, B:W.587, B:F.704, B:F.704, R.5 Salt bridges: B:R.596 pi-Stacking: B:W.409 Metal complexes: B:C.415 pi-Cation interactions: R.5, R.5

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Felker, D. et al., Mapping interactions of calmodulin and neuronal NO synthase by crosslinking and mass spectrometry. J.Biol.Chem. (2023)

Release Date

2023-11-29

Peptides

Nitric oxide synthase 1: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Nitric oxide synthase 1

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