SMTL ID : 1pjs.1

The co-crystal structure of CysG, the multifunctional methyltransferase/dehydrogenase/ferrochelatase for siroheme synthesis, in complex with it NAD cofactor

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.40 Å

Oligo State

homo-dimer

Ligands

2 x SAH: S-ADENOSYL-L-HOMOCYSTEINE(Non-covalent)

SAH.1: 18 residues within 4Å: Chain A: P.225, L.250, G.301, G.302, D.303, I.306, F.307, T.331, A.332, C.336, Y.381, M.382, V.408, N.410, G.411, P.436, A.437, L.438 12 PLIP interactions: 12 interactions with chain A Hydrophobic interactions: A:Y.381 Hydrogen bonds: A:P.225, A:D.303, A:I.306, A:T.331, A:A.332, A:Y.381, A:M.382, A:N.410, A:G.411, A:A.437 Water bridges: A:A.437 SAH.6: 18 residues within 4Å: Chain B: P.225, L.250, G.301, G.302, D.303, I.306, F.307, T.331, A.332, C.336, Y.381, M.382, V.408, N.410, G.411, P.436, A.437, L.438 10 PLIP interactions: 10 interactions with chain B Hydrophobic interactions: B:Y.381 Hydrogen bonds: B:D.303, B:I.306, B:T.331, B:A.332, B:M.382, B:G.411, B:G.411, B:A.437 Water bridges: B:A.437

2 x NAD: NICOTINAMIDE-ADENINE-DINUCLEOTIDE(Non-covalent)

NAD.2: 15 residues within 4Å: Chain A: G.19, G.20, G.21, D.22, V.23, A.42, L.43, T.44, G.63, P.64, F.65, A.79, T.80, D.81, V.85 10 PLIP interactions: 10 interactions with chain A Hydrogen bonds: A:G.20, A:G.21, A:D.22, A:V.23, A:A.24, A:L.43, A:T.44, A:T.44, A:F.65, A:D.81 NAD.7: 15 residues within 4Å: Chain A: D.264 Chain B: G.19, G.20, G.21, D.22, V.23, R.26, A.42, L.43, T.44, T.80, D.81, V.85, V.103, D.104 15 PLIP interactions: 15 interactions with chain B Hydrogen bonds: B:G.20, B:G.20, B:D.22, B:V.23, B:R.26, B:L.43, B:T.44, B:T.44, B:D.81, B:D.81, B:D.104, B:D.104 Water bridges: B:G.21, B:A.24, B:D.82

2 x PGE: TRIETHYLENE GLYCOL(Non-functional Binders)

PGE.3: 7 residues within 4Å: Chain A: L.135, L.139, K.142 Chain B: L.146, F.183, Q.240, Q.241 5 PLIP interactions: 3 interactions with chain B, 2 interactions with chain A Hydrogen bonds: B:Q.240, B:Q.241, A:K.142 Water bridges: B:R.260, A:K.142 PGE.4: 4 residues within 4Å: Chain A: L.146, P.148, L.151 Chain B: L.139 No protein-ligand interaction detected (PLIP)

1 x PO4: PHOSPHATE ION(Non-functional Binders)

PO4.5: 6 residues within 4Å: Chain A: R.260, R.261, D.262 Chain B: S.115, R.137, R.140 9 PLIP interactions: 4 interactions with chain B, 5 interactions with chain A Hydrogen bonds: B:S.115, A:R.261, A:D.262, A:D.262 Water bridges: B:I.116, B:R.140, A:R.260, A:R.261 Salt bridges: B:R.140

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Stroupe, M.E. et al., CysG structure reveals tetrapyrrole-binding features and novel regulation of siroheme biosynthesis. Nat.Struct.Biol. (2003)

Release Date

2003-12-02

Peptides

Siroheme synthase: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Siroheme synthase

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