4EY1

Human Insulin

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	LNLS BEAMLINE D03B-MX1
Synchrotron site	LNLS
Beamline	D03B-MX1
Temperature [K]	293
Detector technology	CCD
Detector	MAR CCD 165 mm
Spacegroup name	H 3
Unit cell lengths	80.860, 80.860, 33.170
Unit cell angles	90.00, 90.00, 120.00

Refinement procedure

Resolution	40.430 - 1.471
R-factor	0.1641
Rwork	0.160
R-free	0.21890
Structure solution method	MOLECULAR REPLACEMENT
RMSD bond length	0.024
RMSD bond angle	2.173
Data reduction software	MOSFLM
Data scaling software	SCALA (3.3.15)
Phasing software	PHASER (2.1.4)
Refinement software	REFMAC (5.5.0102)

Data quality characteristics

	Overall	Inner shell	Outer shell
Low resolution limit [Å]	40.430	14.054	1.550
High resolution limit [Å]	1.471	4.650	1.471
Rmerge		0.027	0.225
Total number of observations		1312	5632
Number of reflections	13639
<I/σ(I)>	13.7	21.7	3.1
Completeness [%]	99.3	94.7	100
Redundancy	3	3.2	2.8

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	5.5	293	2 uL 0.1 M sodium phosphate, pH 5.5, 10% w/v PEG6000 + 2 uL 100 U/mL human insulin (Insunorm R, lot # I 550005), cryoprotectant: mother liquor + 10% glycerol, VAPOR DIFFUSION, HANGING DROP, temperature 293K