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1c2k

RECRUITING ZINC TO MEDIATE POTENT, SPECIFIC INHIBITION OF SERINE PROTEASES

Method: X-RAY DIFFRACTION D_max: 55.0 Å Quality: REASONABLE

SAXS Profile

P(r) Distribution

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1. Structure Basics

entry_id	1c2k
deposition_date	1999-07-21
title	RECRUITING ZINC TO MEDIATE POTENT, SPECIFIC INHIBITION OF SERINE PROTEASES
keywords	;ZN(II)-MEDIATED SERINE PROTEASE INHIBITORS, PH DEPENDENCE, ZN(II) AFFINITY STUCTURE-BASED DRUG DESIGN, SERINE PROTEASE/INHIBITOR, HYDROLASE-HYDROLASE INHIBITOR COMPLEX ;; HYDROLASE/HYDROLASE INHIBITOR
method	X-RAY DIFFRACTION

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Download Data

SAXS curve (.dat) P(r) distribution (.pr.out) Structure (CIF)

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2. SAXS Parameters (CRYSOL)

rg_guinier	17.04 Å
rg_electron	16.00 Å
i0	10988300.00
molecular_weight	23679.0 kDa
excluded_volume	29170 Å³
envelope_volume	31787 Å³
shell_volume	16386 Å³
envelope_diameter	53.3 Å
shell_rg	22.31 Å
envelope_rg	16.25 Å
shape_rg	16.01 Å
total_rg	16.93 Å
total_atoms	3244
n_residues	223
n_harmonics	20
q_range	— – 0.5000 Å⁻¹
n_points	101
shell_type	directional
solvent_density	0.3340 e/Å³
contrast_shell	0.0300 e/Å³
crysol_version	4.1.3

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3. P(r) Analysis (GNOM)

dmax	55.0 Å
rg_real	16.92 Å
rg_real_error	0.32 Å
i0_real	1.0990e+07
i0_real_error	1.3610e+05
rg_reciprocal	16.93 Å
i0_reciprocal	10990000.0000
total_estimate	0.7150
solution_quality	REASONABLE a REASONABLE solution
n_peaks	2
r_peak_primary	50.6 Å
skewness	0.125
kurtosis	-0.448
angular_range	— – 0.4650 Å⁻¹
current_alpha	0.0000
highest_alpha	2878000.0000
n_real_points	77
gnom_version	4.1.3
quality_criteria	AN1: 0.000; Oscil: 0.843; Stabil: 1.000; Sysdev: 0.257; Positv: 1.000; Valcen: 0.996; Smooth: 0.994

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4. Crystallography & Experiment

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5. Entities & Polymer Info (6)

Entity 1 polymer

description	TRYPSIN
formula_weight	23324.3 kDa
ec_number	3.4.21.4
src_method	nat
entity_count	1

Polymer

type	polypeptide(L)
strand_id	A
atom_count	3920

IVGGYTCGANTVPYQVSLNSGYHFCGGSLINSQWVVSAAHCYKSGIQVRLGEDNINVVEGNEQFISASKSIVHPSYNSNTLNNDIMLIKLKSAASLNSRVASISLPTSCASAGTQCLISGWGNTKSSGTSYPDVLKCLKAPILSDSSCKSAYPGQITSNMFCAGYLEGGKDSCQGDSGGPVVCSGKLQGIVSWGSGCAQKNKPGVYTKVCNYVSWIKQTIASN

Entity 2 non-polymer

description	CALCIUM ION
formula_weight	40.1 kDa
src_method	syn
entity_count	1

Entity 3 non-polymer

description	CHLORIDE ION
formula_weight	35.5 kDa
src_method	syn
entity_count	1

Entity 4 non-polymer

description	ZINC ION
formula_weight	65.4 kDa
src_method	syn
entity_count	2

Entity 5 non-polymer

description	5-AMIDINO-BENZIMIDAZOLE
formula_weight	161.2 kDa
src_method	syn
entity_count	1

Entity 6 water

description	water
formula_weight	18.0 kDa
src_method	nat
entity_count	188

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6. Citations (1)

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length_a	54.910 Å
length_b	54.910 Å
length_c	108.930 Å
angle_alpha	90.00 °
angle_beta	90.00 °
angle_gamma	120.00 °
z_pdb	6

space_group	P 31 2 1
int_tables_number	152
crystal_system	—

resolution	1.650 Å
resolution_low	7.500 Å
r_factor	0.2020
r_work	0.2020
r_free	0.2430

fit	/app/data/saxs_computation/c2/1c2k/1c2k.fit
pddf	/app/data/pr_computation/c2/1c2k/1c2k.pr.out
profile	/app/data/saxs_computation/c2/1c2k/1c2k.dat