1HTA | pdb_00001hta

CRYSTAL STRUCTURE OF THE HISTONE HMFA FROM METHANOTHERMUS FERVIDUS

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		PARTIALLY REFINED ORTHORHOMBIC HMFA

Crystallization

Crystal Properties
Matthews coefficient	Solvent content
2.4	40

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 41.7	α = 90
b = 41.7	β = 90
c = 81.98	γ = 90

Symmetry
Space Group	P 42 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	293	IMAGE PLATE	MARRESEARCH	SEGMENTED MIRROR	1995-09-30	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE X11		EMBL/DESY, HAMBURG	X11

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	1.55	37.3	98.2	0.069	0.069	4.8	7.1		10817			22.87

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.55	1.6	99		0.247	0.247	3	6.8

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-Factor (Observed)	R-Work (Depositor)	R-Free (Depositor)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	AFTER RIGID BODY REFINEMENT	PARTIALLY REFINED ORTHORHOMBIC HMFA	1.55	18	10797	520	97.4	0.2	0.198	0.248	RANDOM	25.34

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]
1.398	1.398			-2.69

RMS Deviations
Key	Refinement Restraint Deviation
p_staggered_tor	17.7
p_scangle_it	5.241
p_transverse_tor	4.5
p_planar_tor	3.9
p_scbond_it	3.426
p_mcangle_it	2.676
p_mcbond_it	1.932
p_multtor_nbd	0.3
p_xhyhbond_nbd	0.3
p_xyhbond_nbd	0.3
p_singtor_nbd	0.178
p_chiral_restr	0.161
p_planar_d	0.047
p_angle_d	0.039
p_plane_restr	0.0242
p_bond_d	0.022
p_angle_deg
p_hb_or_metal_coord
p_orthonormal_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	508
Nucleic Acid Atoms
Solvent Atoms	56
Heterogen Atoms	1

Software

Software
Software Name	Purpose
AMoRE	phasing
REFMAC	refinement
DENZO	data reduction
CCP4	data scaling
SCALA	data scaling