3BLS

AMPC BETA-LACTAMASE FROM ESCHERICHIA COLI

Experimental procedure

Source type	ROTATING ANODE
Source details	RIGAKU RUH2R
Temperature [K]	293
Detector technology	AREA DETECTOR
Collection date	1995-11
Detector	XUONG-HAMLIN MULTIWIRE
Spacegroup name	C 1 2 1
Unit cell lengths	119.380, 78.970, 99.300
Unit cell angles	90.00, 116.30, 90.00

Refinement procedure

Resolution	25.000 - 2.300
R-factor	0.159
Rwork	0.159
Structure solution method	MOLECULAR SUBSTITUTION
Starting model (for MR)	2bls
RMSD bond length	0.019
RMSD bond angle	18.400 *
Data reduction software	UCSD
Data scaling software	UCSD
Phasing software	TNT
Refinement software	TNT

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	25.000	2.480
High resolution limit [Å]	2.300	2.300
Rmerge	0.088	0.216
Total number of observations	114023 *
Number of reflections	35225	6468 *
<I/σ(I)>	10.1	2.7
Completeness [%]	95.5	88.3
Redundancy	3.2	2

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	Vapor diffusion, hanging drop *	8.7		used to seeding *

Crystallization Reagents in Literatures

ID	crystal ID	solution	reagent name	concentration (unit)	details
1	1	reservoir	sodium potassium phosphate	1.7 (M)
2	1	drop	protein	10 (mg/ml)