1AI6

PENICILLIN ACYLASE WITH P-HYDROXYPHENYLACETIC ACID

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		ISOMORPHOUS TO NATIVE

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	batch method	7.2		CRYSTALLIZED FROM 12% PEG 8000, 50MM MOPS PH 7.2. BATCH METHOD. SOAKED IN 5MM P-HYDROXYPHENYLACETIC ACID, batch method

Crystal Properties
Matthews coefficient	Solvent content
3.06	59.5

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 52.12	α = 100.2
b = 65.08	β = 111.44
c = 76.3	γ = 105.81

Symmetry
Space Group	P 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	300	IMAGE PLATE	RIGAKU RAXIS II		1994-08-01	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	2.55	28.06	95.6	0.38	12.6	2		26089			19

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.55	2.7	88.1		0.0071	9.5	1.9

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	ISOMORPHOUS TO NATIVE	FREE R	ISOMORPHOUS TO NATIVE	2.55	28.06	26089	1820	95.6	0.1366	0.2199	BASED ON NATIVE	40.98

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]

RMS Deviations
Key	Refinement Restraint Deviation
p_transverse_tor	26.9
p_staggered_tor	20.6
p_scangle_it	9.739
p_scbond_it	7.464
p_planar_tor	5.2
p_mcangle_it	4.588
p_mcbond_it	3.236
p_multtor_nbd	0.319
p_singtor_nbd	0.183
p_xyhbond_nbd	0.161
p_chiral_restr	0.144
p_planar_d	0.045
p_angle_d	0.041
p_plane_restr	0.0258
p_bond_d	0.015
p_angle_deg
p_hb_or_metal_coord
p_xhyhbond_nbd
p_orthonormal_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5980
Nucleic Acid Atoms
Solvent Atoms	606
Heterogen Atoms	12

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling
ROTAVATA	data scaling