SMTL ID : 7bgn.3 (2 other biounits)

Crystal structure of MtHISN2-AMP complex, a bifunctional enzyme from the histidine biosynthetic pathway

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.70 Å

Oligo State

homo-dimer

Ligands

6 x ZN: ZINC ION(Non-covalent)

ZN.1: 3 residues within 4Å: Chain A: D.80, D.82, D.84 4 PLIP interactions: 4 interactions with chain A Metal complexes: A:D.80, A:D.82, A:D.82, A:D.84 ZN.2: 3 residues within 4Å: Chain A: E.169, E.189, D.192 5 PLIP interactions: 5 interactions with chain A Metal complexes: A:E.169, A:E.169, A:E.189, A:E.189, A:D.192 ZN.5: 4 residues within 4Å: Chain A: C.97, H.98, C.104 Chain B: C.81 4 PLIP interactions: 2 interactions with chain A, 1 interactions with chain B, 1 Ligand-Water interactions Metal complexes: A:C.97, A:C.104, B:C.81, H2O.1 ZN.6: 4 residues within 4Å: Chain A: C.81 Chain B: C.97, H.98, C.104 4 PLIP interactions: 2 interactions with chain B, 1 interactions with chain A, 1 Ligand-Water interactions Metal complexes: B:C.97, B:C.104, A:C.81, H2O.1 ZN.7: 3 residues within 4Å: Chain B: D.80, D.82, D.84 4 PLIP interactions: 4 interactions with chain B Metal complexes: B:D.80, B:D.82, B:D.82, B:D.84 ZN.8: 4 residues within 4Å: Chain B: E.169, E.172, E.189, D.192 5 PLIP interactions: 4 interactions with chain B, 1 Ligand-Water interactions Metal complexes: B:E.169, B:E.172, B:E.189, B:D.192, H2O.1

4 x AMP: ADENOSINE MONOPHOSPHATE(Non-covalent)

AMP.3: 8 residues within 4Å: Chain A: L.131, R.138, S.150, W.151, T.152, Y.195 Chain B: R.218, F.219 8 PLIP interactions: 6 interactions with chain A, 2 interactions with chain B Hydrogen bonds: A:W.151, A:T.152, A:T.152, B:R.218, B:R.218 Salt bridges: A:R.138 pi-Stacking: A:Y.195, A:Y.195 AMP.4: 12 residues within 4Å: Chain A: M.33, W.62, T.63, K.64, G.65, E.66, T.67, S.68, T.96, C.97, H.98, C.104 12 PLIP interactions: 12 interactions with chain A Hydrogen bonds: A:T.63, A:K.64, A:G.65, A:E.66, A:T.67, A:T.67, A:S.68, A:S.68, A:S.68, A:T.96 Water bridges: A:H.98 Salt bridges: A:K.64 AMP.9: 11 residues within 4Å: Chain A: L.215, R.218, F.219 Chain B: L.131, T.134, R.138, S.150, W.151, T.152, Y.195 Ligands: GOL.11 11 PLIP interactions: 9 interactions with chain B, 2 interactions with chain A Hydrogen bonds: B:S.150, B:S.150, B:S.150, B:W.151, B:T.152, B:T.152, A:L.215, A:R.218 Salt bridges: B:R.138 pi-Stacking: B:Y.195, B:Y.195 AMP.10: 13 residues within 4Å: Chain B: M.33, R.58, W.62, T.63, K.64, G.65, E.66, T.67, S.68, T.96, C.97, H.98, C.104 13 PLIP interactions: 13 interactions with chain B Hydrogen bonds: B:R.58, B:T.63, B:K.64, B:G.65, B:E.66, B:T.67, B:S.68, B:S.68, B:S.68, B:T.96 Water bridges: B:H.98 Salt bridges: B:K.64 pi-Cation interactions: B:H.98

1 x GOL: GLYCEROL(Non-functional Binders)

GOL.11: 4 residues within 4Å: Chain B: W.151, K.165, H.196 Ligands: AMP.9 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:K.165, B:H.196

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Witek, W. et al., Structural and mechanistic insights into the bifunctional HISN2 enzyme catalyzing the second and third steps of histidine biosynthesis in plants. Sci Rep (2021)

Release Date

2021-05-19

Peptides

Phosphoribosyl-AMP cyclohydrolase: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
E

B
F

Phosphoribosyl-AMP cyclohydrolase

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