SMTL ID : 2f8p.1

Crystal structure of obelin following Ca2+ triggered bioluminescence suggests neutral coelenteramide as the primary excited state

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.93 Å

Oligo State

monomer

Ligands

3 x CA: CALCIUM ION(Non-covalent)

CA.1: 5 residues within 4Å: Chain A: D.30, N.32, N.34, K.36, E.41 5 PLIP interactions: 4 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:D.30, A:K.36, A:E.41, A:E.41, H2O.4 CA.2: 5 residues within 4Å: Chain A: D.123, D.125, S.127, T.129, E.134 5 PLIP interactions: 4 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:D.123, A:S.127, A:T.129, A:E.134, H2O.3 CA.3: 5 residues within 4Å: Chain A: D.159, D.161, S.163, D.165, E.170 5 PLIP interactions: 4 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:D.159, A:D.161, A:S.163, A:D.165, H2O.5

1 x CEI: N-[3-BENZYL-5-(4-HYDROXYPHENYL)PYRAZIN-2-YL]-2-(4-HYDROXYPHENYL)ACETAMIDE(Non-covalent)

CEI.4: 18 residues within 4Å: Chain A: H.22, M.25, F.28, L.29, A.46, I.50, F.72, F.88, W.92, W.114, G.115, V.118, G.143, M.171, T.172, H.175, W.179, Y.190 15 PLIP interactions: 15 interactions with chain A Hydrophobic interactions: A:F.28, A:L.29, A:A.46, A:I.50, A:F.72, A:W.92, A:V.118, A:V.118 Hydrogen bonds: A:H.22, A:M.171 Water bridges: A:W.114, A:G.115 pi-Stacking: A:W.114, A:H.175, A:W.179

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Liu, Z.J. et al., Crystal structure of obelin after Ca2+-triggered bioluminescence suggests neutral coelenteramide as the primary excited state. Proc.Natl.Acad.Sci.Usa (2006)

Release Date

2006-02-14

Peptides

Obelin: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

Obelin