SMTL ID : 1pjt.1

The structure of the Ser128Ala point-mutant variant of CysG, the multifunctional methyltransferase/dehydrogenase/ferrochelatase for siroheme synthesis

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.80 Å

Oligo State

homo-dimer

Ligands

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

SAH.1: 17 residues within 4Å: Chain A: P.225, 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 9 PLIP interactions: 9 interactions with chain A Hydrophobic interactions: A:Y.381 Hydrogen bonds: A:D.303, A:I.306, A:T.331, A:A.332, A:Y.381, A:N.410, A:G.411, A:G.411 SAH.3: 19 residues within 4Å: Chain B: P.225, L.250, G.301, G.302, D.303, I.306, F.307, G.308, 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:Y.381, B:M.382, B:G.411, B:G.411, B:A.437

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

PO4.2: 6 residues within 4Å: Chain A: R.260, R.261, D.262 Chain B: S.115, R.137, R.140 7 PLIP interactions: 2 interactions with chain B, 5 interactions with chain A Water bridges: B:I.116, A:R.261, A:D.262, A:D.262 Salt bridges: B:R.140 Hydrogen bonds: A:Q.240, A:R.261

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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