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

Crystal structure of Lactose synthase complex with UDP

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.50 Å

Oligo State

hetero-1-1-mer

Ligands

1 x CA: CALCIUM ION(Non-covalent)

CA.1: 6 residues within 4Å: Chain A: K.79, L.80, 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.88, H2O.2

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

PG4.2: 12 residues within 4Å: Chain A: E.2, F.31, H.32, T.33, S.34, G.35, V.42 Chain B: K.163, F.164, W.198, R.233, P.239 2 PLIP interactions: 1 interactions with chain B, 1 interactions with chain A Hydrogen bonds: B:R.233, A:E.2

1 x UDP: URIDINE-5'-DIPHOSPHATE(Non-covalent)

UDP.3: 15 residues within 4Å: Chain B: P.71, F.72, R.73, R.75, F.110, D.136, V.137, D.138, M.161, K.163, W.198, M.228, H.231, D.234, N.237 15 PLIP interactions: 15 interactions with chain B Hydrophobic interactions: B:D.234 Hydrogen bonds: B:P.71, B:R.73, B:R.73, B:V.137, B:D.138, B:D.138, B:Y.173 Water bridges: B:D.202, B:N.237, B:N.237 Salt bridges: B:K.163, B:H.231 pi-Stacking: B:F.110 pi-Cation interactions: B:R.75

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

2003-01-07

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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