SMTL ID : 1nf5.1 (1 other biounit)

Crystal Structure of Lactose Synthase, Complex with Glucose

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.00 Å

Oligo State

hetero-1-1-mer

Ligands

1 x CA: CALCIUM ION(Non-covalent)

CA.1: 5 residues within 4Å: Chain A: K.79, D.82, E.84, D.87, D.88 5 PLIP interactions: 4 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:K.79, A:D.82, A:E.84, A:D.87, H2O.1

2 x PG4: TETRAETHYLENE GLYCOL(Non-functional Binders)

PG4.2: 11 residues within 4Å: Chain A: F.31, H.32, T.33, S.34, G.35, A.40, V.42 Chain B: W.198, R.233, R.243 Ligands: BGC.3 2 PLIP interactions: 1 interactions with chain A, 1 interactions with chain B Water bridges: A:V.41 Hydrogen bonds: B:R.233 PG4.4: 5 residues within 4Å: Chain B: P.63, H.64, C.150, F.151, S.152 1 PLIP interactions: 1 interactions with chain B Water bridges: B:R.149

1 x BGC: beta-D-glucopyranose(Non-covalent)

BGC.3: 12 residues within 4Å: Chain A: F.31, H.32 Chain B: F.164, Y.170, Y.173, W.198, G.199, G.200, D.202, D.203, R.243 Ligands: PG4.2 9 PLIP interactions: 8 interactions with chain B, 1 interactions with chain A Hydrogen bonds: B:G.200, B:D.202, B:D.203, B:R.243 Water bridges: B:K.163, B:K.163, B:Y.173 Salt bridges: B:R.243, A:H.32

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Ramakrishnan, B. et al., Crystal Structure of Lactose Synthase Reveals a Large Conformational Change in its Catalytic Component, the beta-1,4-galactosyltransferase. J.Mol.Biol. (2001)

Release Date

2002-12-25

Peptides

Alpha-lactalbumin: A
beta-1,4-galactosyltransferase: B

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Alpha-lactalbumin

beta-1,4-galactosyltransferase

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