SMTL ID : 8bj2.1

Crystal structure of Medicago truncatula histidinol-phosphate aminotransferase (HISN6) in the closed state

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.40 Å

Oligo State

homo-dimer

Ligands

2 x ACT: ACETATE ION(Non-functional Binders)

ACT.1: 5 residues within 4Å: Chain A: Y.14, I.17, R.328 Chain B: Y.63, Y.249 10 PLIP interactions: 7 interactions with chain A, 3 interactions with chain B Hydrophobic interactions: A:I.17, B:Y.63, B:Y.249 Hydrogen bonds: A:Y.14, B:Y.249 Water bridges: A:N.166, A:Y.330, A:R.340, A:R.340 Salt bridges: A:R.328 ACT.4: 5 residues within 4Å: Chain A: Y.63, Y.249 Chain B: Y.14, I.17, R.328 10 PLIP interactions: 6 interactions with chain B, 4 interactions with chain A Hydrophobic interactions: B:I.17, A:Y.63, A:Y.249 Water bridges: B:Y.14, B:N.166, B:R.340, B:R.340 Salt bridges: B:R.328 Hydrogen bonds: A:Y.249, A:Y.249

2 x NA: SODIUM ION(Non-functional Binders)

NA.2: 3 residues within 4Å: Chain A: K.288, V.290, L.293 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:L.293 NA.5: 4 residues within 4Å: Chain B: K.288, V.290, P.291, L.293 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:P.291

2 x EPE: 4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID(Non-functional Binders)

EPE.3: 4 residues within 4Å: Chain A: E.67, R.72, E.84, W.243 8 PLIP interactions: 8 interactions with chain A Water bridges: A:R.72, A:R.72, A:R.72, A:R.72 Salt bridges: A:E.67, A:E.67, A:R.72 pi-Cation interactions: A:W.243 EPE.6: 6 residues within 4Å: Chain A: P.13 Chain B: E.67, R.72, E.84, W.243, R.244 6 PLIP interactions: 6 interactions with chain B Water bridges: B:E.67, B:R.72 Salt bridges: B:E.67, B:E.67, B:R.72 pi-Cation interactions: B:W.243

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Rutkiewicz, M. et al., Insights into the substrate specificity, structure, and dynamics of plant histidinol-phosphate aminotransferase (HISN6). Plant Physiol Biochem. (2023)

Release Date

2023-03-22

Peptides

histidinol-phosphate aminotransferase: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

histidinol-phosphate aminotransferase

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