SMTL ID : 4z3k.2 (1 other biounit)

Human sepiapterin reductase in complex with the cofactor NADP+ and the trypthophan metabolite xanthurenic acid

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.35 Å

Oligo State

homo-dimer

Ligands

2 x NAP: NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE(Non-covalent)

NAP.1: 31 residues within 4Å: Chain A: G.28, A.29, S.30, R.31, G.32, F.33, A.55, R.56, N.57, A.82, D.83, L.84, G.85, N.114, A.115, G.116, L.140, I.169, S.170, S.171, Y.184, K.188, P.212, G.213, P.214, L.215, T.217, D.218, M.219, Q.220 Ligands: 4KL.2 27 PLIP interactions: 27 interactions with chain A Hydrophobic interactions: A:P.212 Hydrogen bonds: A:S.30, A:S.30, A:S.30, A:R.31, A:R.31, A:F.33, A:R.56, A:N.57, A:D.83, A:L.84, A:G.85, A:N.114, A:G.116, A:K.188, A:L.215, A:L.215, A:T.217, A:D.218, A:M.219, A:Q.220, A:Q.220 Water bridges: A:G.34, A:N.114 Salt bridges: A:R.31, A:R.31, A:R.56 NAP.6: 30 residues within 4Å: Chain B: G.28, A.29, S.30, R.31, G.32, F.33, A.55, R.56, N.57, A.82, D.83, L.84, G.85, N.114, A.115, G.116, L.140, I.169, S.170, Y.184, K.188, P.212, G.213, P.214, L.215, T.217, D.218, M.219, Q.220 Ligands: 4KL.7 28 PLIP interactions: 28 interactions with chain B Hydrophobic interactions: B:P.212 Hydrogen bonds: B:S.30, B:S.30, B:S.30, B:R.31, B:R.31, B:F.33, B:R.56, B:N.57, B:D.83, B:L.84, B:G.85, B:N.114, B:G.116, B:K.188, B:L.215, B:L.215, B:D.218, B:M.219, B:Q.220, B:Q.220 Water bridges: B:R.31, B:R.56, B:R.56, B:N.57 Salt bridges: B:R.31, B:R.31, B:R.56

2 x 4KL: Xanthuric acid(Non-covalent)

4KL.2: 8 residues within 4Å: Chain A: S.171, L.172, W.181, Y.184, P.214, Q.220, L.236 Ligands: NAP.1 10 PLIP interactions: 10 interactions with chain A Hydrophobic interactions: A:W.181, A:W.181, A:Y.184, A:P.214 Hydrogen bonds: A:S.171, A:S.171, A:L.172, A:Y.184, A:Q.220 Water bridges: A:G.213 4KL.7: 10 residues within 4Å: Chain B: S.171, L.172, W.181, Y.184, P.214, M.219, Q.220, L.236 Ligands: NAP.6, SO4.8 9 PLIP interactions: 9 interactions with chain B Hydrophobic interactions: B:Y.184, B:P.214 Hydrogen bonds: B:S.171, B:S.171, B:S.171, B:L.172, B:Y.184, B:Q.220 pi-Stacking: B:W.181

3 x SO4: SULFATE ION(Non-functional Binders)

SO4.3: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP) SO4.4: 1 residues within 4Å: Chain A: R.56 1 PLIP interactions: 1 interactions with chain A Salt bridges: A:R.56 SO4.8: 6 residues within 4Å: Chain B: C.173, F.178, W.181, M.232, L.236 Ligands: 4KL.7 No protein-ligand interaction detected (PLIP)

1 x EDO: 1,2-ETHANEDIOL(Non-functional Binders)

EDO.5: 3 residues within 4Å: Chain A: R.233, K.234, Q.237 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:Q.237, A:Q.237

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Haruki, H. et al., Tetrahydrobiopterin Biosynthesis as a Potential Target of the Kynurenine Pathway Metabolite Xanthurenic Acid. J.Biol.Chem. (2016)

Release Date

2015-11-18

Peptides

Sepiapterin reductase: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

B
D

Sepiapterin reductase

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