1AI4 | pdb_00001ai4

PENICILLIN ACYLASE COMPLEXED WITH 3,4-DIHYDROXYPHENYLACETIC ACID

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	streak seeded	7.2		CRYSTALLISED FROM 10% PEG 8000, 50MM MOPS, PH 7.2, STREAK SEEDED. SOAKED IN 10MM 3,4-DIHYDROXYPHENYLACETIC ACID., streak seeded

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	MARRESEARCH		1995-07-17	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE X31		EMBL/DESY, HAMBURG	X31

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	2.35	19.85	96.5	0.055	12.3	2		33691			17.9

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	2.35	2.47	97.5		0.164	4.5	2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	ISOMORPHOUS WITH NATIVE STRUCTURE	FREE_R	2.35	19.85	33691	2413	96.5	0.15	0.14	0.236	0.21	BASED ON NATIVE STRUCTURE	30.38

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	26.1
p_staggered_tor	20.2
p_scangle_it	9.218
p_scbond_it	7.161
p_planar_tor	5.2
p_mcangle_it	4.435
p_mcbond_it	3.365
p_multtor_nbd	0.316
p_singtor_nbd	0.177
p_xyhbond_nbd	0.166
p_chiral_restr	0.143
p_planar_d	0.043
p_angle_d	0.04
p_plane_restr	0.0259
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	6071
Nucleic Acid Atoms
Solvent Atoms	600
Heterogen Atoms	13

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
Agrovata	data scaling
ROTAVATA	data scaling