SMTL ID : 2gd0.1 (1 other biounit)

The 1,1-proton transfer reaction mechanism by alpha-methylacyl-CoA racemase is catalyzed by an aspartate/histidine pair and involves a smooth, methionine-rich surface for binding the fatty acyl moiety

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.70 Å

Oligo State

homo-dimer

Ligands

2 x MRS: (S)-2-METHYLMYRISTOYL-COENZYME A(Non-covalent)

MRS.1: 34 residues within 4Å: Chain A: I.16, D.37, R.38, R.47, D.48, A.59, D.60, L.61, K.62, G.83, Y.84, R.85, V.88, R.91, L.92, M.111, T.112, G.113, A.124, G.125, H.126, D.127, Y.130, N.152, D.156, M.188 Chain B: M.198, A.201, M.202, T.205, M.207, L.217, I.240, F.244 21 PLIP interactions: 16 interactions with chain A, 5 interactions with chain B Hydrophobic interactions: A:I.16, A:A.124, B:T.205, B:L.217, B:L.217, B:I.240 Hydrogen bonds: A:A.59, A:L.61, A:K.62, A:G.83, A:R.85, A:R.85, A:D.127, A:Y.130, A:Y.130 Water bridges: A:R.91, A:R.91, B:Q.243 Salt bridges: A:K.62, A:R.85, A:R.91 MRS.3: 28 residues within 4Å: Chain A: A.201, M.202, T.205, M.207, L.217, Y.224 Chain B: I.16, R.38, D.48, A.59, D.60, L.61, K.62, G.83, Y.84, R.85, V.88, R.91, L.92, T.112, G.113, G.125, H.126, D.127, Y.130, N.152, D.156, M.188 22 PLIP interactions: 18 interactions with chain B, 4 interactions with chain A Hydrophobic interactions: B:I.16, B:H.126, A:T.205, A:L.217, A:L.217 Hydrogen bonds: B:A.59, B:D.60, B:L.61, B:K.62, B:G.83, B:R.85, B:H.126, B:D.127, B:Y.130 Water bridges: B:R.85, B:R.85, B:R.91, A:Q.243 Salt bridges: B:K.62, B:R.85, B:R.85, B:R.91

2 x GOL: GLYCEROL(Non-functional Binders)

GOL.2: 6 residues within 4Å: Chain A: M.216, Y.223, I.240, P.242, Q.262, N.263 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:I.240, A:N.263 GOL.4: 5 residues within 4Å: Chain B: M.216, Y.223, I.240, Q.262, N.263 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:I.240, B:N.263

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Bhaumik, P. et al., The Catalysis of the 1,1-Proton Transfer by alpha-Methyl-acyl-CoA Racemase Is Coupled to a Movement of the Fatty Acyl Moiety Over a Hydrophobic, Methionine-rich Surface. J.Mol.Biol. (2007)

Release Date

2007-02-20

Peptides

probable alpha-methylacyl-CoA racemase MCR: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

probable alpha-methylacyl-CoA racemase MCR

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