Brand  (β version)

PDB ID: 1DP0

Hetero Atom Contents

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Code Name Style Show Link
DMS Dimethyl sulfoxide PoSSuM
MG Magnesium ion PoSSuM
NA Sodium ion PoSSuM

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Non-standard Residues
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Glycosylation
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Structure summary

Code : 1DP0   PDBj   RCSB PDB   PDBe
Header : HYDROLASE
Title : E. COLI BETA-GALACTOSIDASE AT 1.7 ANGSTROM
Release Data : 2001-02-21
Compound :
mol_id molecule chains
1 BETA-GALACTOSIDASE A,B,C,D
ec: 3.2.1.23
Source :
mol_id organism_scientific expression_system
1 Escherichia coli  (taxid:562) Escherichia coli  (taxid:562)
expression_system_plasmid: PET 15B (NOVAGEN)
Authors : Juers, D.H., Jacobson, R.H., Wigley, D., Zhang, X.J., Huber, R.E., Tronrud, D.E., Matthews, B.W.
Keywords : TIM BARREL (ALPHA/BETA BARREL), JELLY-ROLL BARREL, IMMUNOGLOBULIN, BETA SUPERSANDWICH, HYDROLASE
Exp. method : X-RAY DIFFRACTION ( 1.70 Å )
Citation :

High resolution refinement of beta-galactosidase in a new crystal form reveals multiple metal-binding sites and provides a structural basis for alpha-complementation.

Juers, D.H.,Jacobson, R.H.,Wigley, D.  et al.
(2000)  Protein Sci.  9 : 1685 - 1699

PubMed: 11045615

Structural comparisons of TIM barrel proteins suggest functional and evolutionary relationships between beta-galactosidase and other glycohydrolases

Juers, D.H.,Jacobson, R.H.,Wigley, D.  et al.
(1999)  Protein Sci.  8 : 122 - 136

Three-dimensional structure of beta-galactosidase from E. coli

Juers, D.H.,Huber, R.E.,Matthews, B.W.
(1994)  Nature  369 : 761 - 766

DOI: 10.1038/369761a0

Crystallization of beta-galactosidase from Escherichia coli

Jacobson, R.H.,Zhang, X.J.,DuBose, R.F.  et al.
(1992)  J.Mol.Biol.  233 : 1177 - 1182

Reaction

Chain : A, B, C, D
UniProt : P00722 (BGAL_ECOLI)
Reaction: EC: Evidence:
Physiological Direction:
Hydrolysis of terminal non-reducing beta-D-galactose residues in beta-D-galactosides. 3.2.1.23 -
-
Cofactor: Evidence: Note:
Mn(2+) - Binds 2 magnesium ions per monomer. Can also use manganese.
Na(+) - Binds 1 sodium ion per monomer.