PDB-2qbz: Structure of the M-Box Riboswitch Aptamer Domain

ID or keywords:

Entry

Database: PDB / ID: 2qbz

Title

Structure of the M-Box Riboswitch Aptamer Domain

Components

M-Box RNA, ykoK riboswitch aptamer

Keywords

RNA / riboswitch / ykoK / M-Box / RNA sensor / Noncoding RNA

Function / homology

: / : / RNA / RNA (> 10) / RNA (> 100)

Function and homology information

Method

X-RAY DIFFRACTION /

SYNCHROTRON /

SIRAS / Resolution: 2.6 Å

Authors

Dann III, C.E. / Winkler, W.C.

Citation

Journal: Cell(Cambridge,Mass.) / Year: 2007
Title: Structure and mechanism of a metal-sensing regulatory RNA
Authors: Dann III, C.E. / Wakeman, C.A. / Sieling, C.L. / Baker, S.C. / Irnov, I. / Winkler, W.C.

History

Deposition	Jun 18, 2007	Deposition site: RCSB / Processing site: RCSB
Revision 1.0	Sep 18, 2007	Provider: repository / Type: Initial release
Revision 1.1	Jul 13, 2011	Group: Advisory / Version format compliance
Revision 1.2	Oct 18, 2017	Group: Refinement description / Category: software
Revision 1.3	Feb 21, 2024	Group: Data collection / Database references / Derived calculations Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_struct_conn_angle / struct_conn / struct_ref_seq_dif Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr2_auth_comp_id / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr2_label_atom_id / _pdbx_struct_conn_angle.ptnr2_label_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_ref_seq_dif.details

Structure viewer	Molecule: MolmilJmol/JSmol

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Download

PDBx/mmCIF format	2qbz.cif.gz	102.2 KB	Display	PDBx/mmCIF format
PDB format	pdb2qbz.ent.gz	74.6 KB	Display	PDB format
PDBx/mmJSON format	2qbz.json.gz		Tree view	PDBx/mmJSON format
Others	Other downloads

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Validation report

Arichive directory	https://data.pdbj.org/pub/pdb/validation_reports/qb/2qbz ftp://data.pdbj.org/pub/pdb/validation_reports/qb/2qbz	HTTPS FTP

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Related structure data

Similar structure data	2fvu-d 4k7k-2 4k7k-1 4k34-2 5nf3-d 1woy-d 2y5b-2 1nl0-d Search similar-shape structures by Omokage search (details) Similarity search - Function & homologyF&H Search Similarity search - HomologyF&H Search

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Links

PDB pages	PDBj / wwPDB / NCBI
Related items in Molecule of the Month	#130 - Oct 2010 Riboswitches similarity (5) #121 - Jan 2010 70S Ribosomes similarity (2) #16 - Apr 2001 Aminoacyl-tRNA Synthetases similarity (1) #157 - Jan 2013 Transfer-Messenger RNA similarity (2) #253 - Jan 2021 Expressome similarity (2) #260 - Aug 2021 Ribonuclease P similarity (2) #181 - Jan 2015 Cascade and CRISPR similarity (1) #229 - Jan 2019 Fluorescent RNA Aptamers similarity (1) #146 - Feb 2012 Aminoglycoside Antibiotics similarity (2) #15 - Mar 2001 Transfer RNA similarity (1) #210 - Jun 2017 Adenine Riboswitch in Action similarity (2) #249 - Sep 2020 SARS-CoV-2 RNA-dependent RNA Polymerase similarity (1) #10 - Oct 2000 Ribosome similarity (2) #87 - Mar 2007 Zinc Fingers similarity (1) #226 - Oct 2018 Aminoglycoside Antibiotics and Resistance similarity (2) #245 - May 2020 Spliceosomes similarity (2) #262 - Oct 2021 Fifty Years of Open Access to PDB Structures similarity (2) #65 - May 2005 Self-splicing RNA similarity (2) #105 - Sep 2008 Ribonuclease A similarity (1) #98 - Feb 2008 Small Interfering RNA similarity (1) #161 - May 2013 Ricin similarity (2) #227 - Nov 2018 Telomerase similarity (2) #266 - Feb 2022 Oligosaccharyltransferase similarity (2) #104 - Aug 2008 Selenocysteine Synthase similarity (1) #106 - Oct 2008 Poly(A) Polymerase similarity (1) #143 - Nov 2011 Toll-like Receptors similarity (1) #230 - Feb 2019 Initiation Factor eIF4E similarity (1) #81 - Sep 2006 Elongation Factors similarity (1) #89 - May 2007 Aconitase and Iron Regulatory Protein 1 similarity (1) #241 - Jan 2020 Twenty Years of Molecules similarity (1)

PDB pages

PDBj /

wwPDB /

NCBI

Related items in Molecule of the Month

#130 - Oct 2010
Riboswitches
similarity (5)
#121 - Jan 2010
70S Ribosomes
similarity (2)
#16 - Apr 2001
Aminoacyl-tRNA Synthetases
similarity (1)
#157 - Jan 2013
Transfer-Messenger RNA
similarity (2)
#253 - Jan 2021
Expressome
similarity (2)
#260 - Aug 2021
Ribonuclease P
similarity (2)
#181 - Jan 2015
Cascade and CRISPR
similarity (1)
#229 - Jan 2019
Fluorescent RNA Aptamers
similarity (1)
#146 - Feb 2012
Aminoglycoside Antibiotics
similarity (2)
#15 - Mar 2001
Transfer RNA
similarity (1)
#210 - Jun 2017
Adenine Riboswitch in Action
similarity (2)
#249 - Sep 2020
SARS-CoV-2 RNA-dependent RNA Polymerase
similarity (1)
#10 - Oct 2000
Ribosome
similarity (2)
#87 - Mar 2007
Zinc Fingers
similarity (1)
#226 - Oct 2018
Aminoglycoside Antibiotics and Resistance
similarity (2)
#245 - May 2020
Spliceosomes
similarity (2)
#262 - Oct 2021
Fifty Years of Open Access to PDB Structures
similarity (2)
#65 - May 2005
Self-splicing RNA
similarity (2)
#105 - Sep 2008
Ribonuclease A
similarity (1)
#98 - Feb 2008
Small Interfering RNA
similarity (1)
#161 - May 2013
Ricin
similarity (2)
#227 - Nov 2018
Telomerase
similarity (2)
#266 - Feb 2022
Oligosaccharyltransferase
similarity (2)
#104 - Aug 2008
Selenocysteine Synthase
similarity (1)
#106 - Oct 2008
Poly(A) Polymerase
similarity (1)
#143 - Nov 2011
Toll-like Receptors
similarity (1)
#230 - Feb 2019
Initiation Factor eIF4E
similarity (1)
#81 - Sep 2006
Elongation Factors
similarity (1)
#89 - May 2007
Aconitase and Iron Regulatory Protein 1
similarity (1)
#241 - Jan 2020
Twenty Years of Molecules
similarity (1)

Deposited unit

X: M-Box RNA, ykoK riboswitch aptamer

hetero molecules

52.1 kDa, 1 polymers
Search similar-shape structures of this assembly by Omokage search (details)

1

Idetical with deposited unit
defined by author&software

Unit cell

Length a, b, c (Å)	48.655, 101.081, 285.765
Angle α, β, γ (deg.)	90.000, 90.000, 90.000
Int Tables number	23
Space group name H-M	I222

#1: RNA chain	M-Box RNA, ykoK riboswitch aptamer Mass: 51810.707 Da / Num. of mol.: 1 / Source method: obtained synthetically Details: This sequence naturally appears in Bacillus subtilis. It was produced by T7 RNA pol in vitro transcription. References: GenBank: 32468738
#2: Chemical	ChemComp-MG / MAGNESIUM ION Mass: 24.305 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: Mg
#3: Chemical	ChemComp-K / POTASSIUM ION Mass: 39.098 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: K
#4: Water	ChemComp-HOH / water Mass: 18.015 Da / Num. of mol.: 135 / Source method: isolated from a natural source / Formula: H₂O

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Experiment

Experiment	Method: X-RAY DIFFRACTION / Number of used crystals: 2

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Sample preparation

Crystal

ID	Density Matthews (Å³/Da)	Density % sol (%)
1	3.39	63.72
2

Crystal grow

Temperature (K)	Crystal-ID	Method	pH	Details
293	1	vapor diffusion, hanging drop	7.4	HEPES, MPD, Spermine, KCl, MgCl2 over 35 % MPD, pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 293K
293	2	vapor diffusion, hanging drop	7.2	HEPES, MPD, Spermine, CsCl, MgCl2 over 35 % MPD, pH 7.2, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Components of the solutions

ID	Name	Crystal-ID	Sol-ID
1	HEPES	1	1
2	MPD	1	1
3	MPD	1	2
4	Spermine	1	1
5	KCl	1	1
6	MgCl2	1	1
7	HEPES	2	1
8	MPD	2	1
9	MPD	2	2
10	Spermine	2	1
11	CsCl	2	1
12	MgCl2	2	1

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Data collection

Diffraction

ID	Mean temperature (K)	Crystal-ID
1	100	1
2	100	1
1,2		1

Diffraction source

Source	Site	Beamline	Type	ID	Wavelength (Å)
SYNCHROTRON	APS	19-ID		1	0.9786
ROTATING ANODE			RIGAKU FR-E+ SUPERBRIGHT	2	1.5418

Detector

Type	ID	Detector	Date	Details
ADSC QUANTUM 315	1	CCD	Apr 17, 2006
RIGAKU RAXIS IV	2	IMAGE PLATE	Jun 17, 2006	osmic mirrors

Radiation

ID	Monochromator	Protocol	Monochromatic (M) / Laue (L)	Scattering type	Wavelength-ID
1	SILICON 111	SINGLE WAVELENGTH	M	x-ray	1
2		SINGLE WAVELENGTH	M	x-ray	1

Radiation wavelength

ID	Wavelength (Å)	Relative weight
1	0.9786	1
2	1.5418	1

Reflection

D res low: 50 Å

Redundancy (%)	ID	Av σ(I) over netI	Number	R_merge(I) obs	Χ²	D res high (Å)	Num. obs	% possible obs
4.2	1	6.2	105203	0.107	0.92	2.5	25174	98.6
3.1	2	10	39137	0.111	1.22	2.9	12532	76.7

Diffraction reflection shell

Highest resolution (Å)	Lowest resolution (Å)	% possible obs (%)	ID	R_merge(I) obs	Chi squared	Redundancy
5.38	50	97.7	1	0.066	0.754	4
4.27	5.38	99.8	1	0.083	0.873	4.1
3.73	4.27	99.7	1	0.085	0.923	4.2
3.39	3.73	99.8	1	0.101	0.95	4.2
3.15	3.39	99.6	1	0.115	0.968	4.3
2.96	3.15	99.5	1	0.154	0.964	4.3
2.82	2.96	99.4	1	0.254	0.913	4.3
2.69	2.82	99.2	1	0.372	0.925	4.3
2.59	2.69	98.5	1	0.414	0.938	4.2
2.5	2.59	92.7	1	0.573	0.985	4
6.24	50	67.3	2	0.065	1.718	3.5
4.96	6.24	73.1	2	0.072	1.576	3.4
4.33	4.96	74.8	2	0.084	1.158	3.4
3.94	4.33	76.8	2	0.103	1.136	3.3
3.65	3.94	77.7	2	0.124	1.148	3.3
3.44	3.65	78.5	2	0.151	1.04	3.1
3.27	3.44	80.3	2	0.174	1.073	3
3.12	3.27	79.3	2	0.21	1.106	2.9
3	3.12	80	2	0.311	1.034	2.8
2.9	3	80.5	2	0.459	1.009	2.6

Reflection

Resolution: 2.6→50 Å / Num. all: 22584 / Num. obs: 22584 / % possible obs: 99.3 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 4.4 % / B_iso Wilson estimate: 59.6 Å² / R_merge(I) obs: 0.107 / R_sym value: 0.107 / Χ²: 1.006 / Net I/σ(I): 6.8

Reflection shell

Resolution: 2.6→2.69 Å / Redundancy: 4.5 % / R_merge(I) obs: 0.405 / Mean I/σ(I) obs: 3 / Num. unique all: 2202 / R_sym value: 0.401 / Χ²: 1.046 / % possible all: 98.7

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Phasing

Phasing

Method:

SIRAS

Phasing set

ID
1
2

Phasing dm

Method: Solvent flattening and Histogram matching / Reflection: 24487

Phasing dm shell

Resolution (Å)	Delta phi final	FOM	Reflection
9.25-100	61	0.792	508
7.31-9.25	63.5	0.832	510
6.35-7.31	59.2	0.821	519
5.75-6.35	58.9	0.863	531
5.29-5.75	55.3	0.874	568
4.93-5.29	61.8	0.872	610
4.63-4.93	59.9	0.856	663
4.38-4.63	61.2	0.871	680
4.17-4.38	65.9	0.882	754
3.99-4.17	62.6	0.897	759
3.82-3.99	64.6	0.904	804
3.68-3.82	66.1	0.896	833
3.55-3.68	66.4	0.899	877
3.44-3.55	71	0.893	888
3.33-3.44	68	0.903	934
3.23-3.33	70.8	0.887	942
3.15-3.23	68.7	0.896	1007
3.06-3.15	72.6	0.88	979
2.99-3.06	76.2	0.867	1042
2.92-2.99	79.1	0.834	1066
2.85-2.92	88.7	0.82	1060
2.79-2.85	89.2	0.789	1117
2.73-2.79	90.3	0.794	1113
2.68-2.73	90.1	0.778	1146
2.63-2.68	90.5	0.792	1184
2.58-2.63	91	0.799	1186
2.5-2.58	88.7	0.697	2207

Phasing MIR der

Native set-ID: 1 / Resolution: 2.5→37.85 Å

ID	Der set-ID	Power acentric	Power centric	Reflection acentric	Reflection centric
ISO_1	1	0	0	21921	2566
ISO_2	2	1.488	1.228	10450	1260

Phasing MIR der shell

Highest resolution (Å)	Lowest resolution (Å)	Der-ID	Power acentric	Power centric	Reflection acentric	Reflection centric
10.74	37.85	ISO_1	0	0	217	113
7.75	10.74	ISO_1	0	0	407	120
6.38	7.75	ISO_1	0	0	539	115
5.54	6.38	ISO_1	0	0	652	131
4.97	5.54	ISO_1	0	0	762	122
4.54	4.97	ISO_1	0	0	838	124
4.21	4.54	ISO_1	0	0	926	131
3.94	4.21	ISO_1	0	0	1000	126
3.72	3.94	ISO_1	0	0	1064	126
3.53	3.72	ISO_1	0	0	1146	128
3.37	3.53	ISO_1	0	0	1199	135
3.22	3.37	ISO_1	0	0	1260	130
3.1	3.22	ISO_1	0	0	1322	136
2.99	3.1	ISO_1	0	0	1356	133
2.88	2.99	ISO_1	0	0	1415	135
2.79	2.88	ISO_1	0	0	1473	136
2.71	2.79	ISO_1	0	0	1517	130
2.63	2.71	ISO_1	0	0	1571	141
2.56	2.63	ISO_1	0	0	1597	130
2.5	2.56	ISO_1	0	0	1660	124
10.74	37.85	ISO_2	2.193	1.407	150	74
7.75	10.74	ISO_2	2.406	1.602	286	81
6.38	7.75	ISO_2	2.279	1.846	396	79
5.54	6.38	ISO_2	2.099	1.455	476	87
4.97	5.54	ISO_2	1.956	1.86	557	86
4.54	4.97	ISO_2	1.764	1.552	616	86
4.21	4.54	ISO_2	1.701	1.26	684	90
3.94	4.21	ISO_2	1.592	1.113	758	83
3.72	3.94	ISO_2	1.483	1.095	794	87
3.53	3.72	ISO_2	1.336	0.983	869	91
3.37	3.53	ISO_2	1.193	0.806	915	86
3.22	3.37	ISO_2	1.084	0.752	953	88
3.1	3.22	ISO_2	1.049	0.702	1003	87
2.99	3.1	ISO_2	0.935	0.636	1012	83
2.88	2.99	ISO_2	0.829	0.525	981	72
2.79	2.88	ISO_2	0	0	0	0
2.71	2.79	ISO_2	0	0	0	0
2.63	2.71	ISO_2	0	0	0	0
2.56	2.63	ISO_2	0	0	0	0
2.5	2.56	ISO_2	0	0	0	0

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Processing

Software

Name	Version	Classification
DENZO		data reduction
SCALEPACK		data scaling
SHARP		phasing
DM	6	phasing
REFMAC	refmac_5.2.0019	refinement
PDB_EXTRACT	2	data extraction
SBC-Collect		data collection
HKL-2000		data reduction
HKL-2000		data scaling

Refinement

Method to determine structure:

SIRAS / Resolution: 2.6→47.67 Å / Cor.coef. F_o:F_c: 0.937 / Cor.coef. F_o:F_c free: 0.916 / SU B: 15.412 / SU ML: 0.177 / TLS residual ADP flag: LIKELY RESIDUAL / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.363 / ESU R Free: 0.263 / Stereochemistry target values: Engh & Huber / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS

	R_factor	Num. reflection	% reflection	Selection details
R_free	0.246	1131	5.1 %	RANDOM
R_work	0.202	-	-	-
all	0.204	22181	-	-
obs	0.204	22181	99.37 %	-

Solvent computation

Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK

Displacement parameters

B_iso mean: 39.551 Å²

	B_aniso -1	B_aniso -2	B_aniso -3
1-	-3.83 Å²	0 Å²	0 Å²
2-	-	-1.64 Å²	0 Å²
3-	-	-	5.47 Å²

Refinement step

Cycle: LAST / Resolution: 2.6→47.67 Å

	Protein	Nucleic acid	Ligand	Solvent	Total
Num. atoms	0	3263	10	135	3408

Refine LS restraints

Refine-ID	Type	Dev ideal	Dev ideal target	Number
X-RAY DIFFRACTION	r_bond_refined_d	0.01	0.021	3683
X-RAY DIFFRACTION	r_angle_refined_deg	1.73	3	5683
X-RAY DIFFRACTION	r_chiral_restr	0.08	0.2	765
X-RAY DIFFRACTION	r_gen_planes_refined	0.008	0.02	1579
X-RAY DIFFRACTION	r_nbd_refined	0.199	0.2	1543
X-RAY DIFFRACTION	r_nbtor_refined	0.279	0.2	2296
X-RAY DIFFRACTION	r_xyhbond_nbd_refined	0.17	0.2	204
X-RAY DIFFRACTION	r_metal_ion_refined	0.088	0.2	4
X-RAY DIFFRACTION	r_symmetry_vdw_refined	0.22	0.2	30
X-RAY DIFFRACTION	r_symmetry_hbond_refined	0.332	0.2	7
X-RAY DIFFRACTION	r_mcbond_it	1.8	1.5	23
X-RAY DIFFRACTION	r_scbond_it	1.126	3	3849
X-RAY DIFFRACTION	r_scangle_it	1.603	4.5	5683

LS refinement shell

Resolution: 2.6→2.667 Å / Total num. of bins used: 20

	R_factor	Num. reflection	% reflection
R_free	0.338	79	-
R_work	0.323	1515	-
obs	-	1594	99.13 %

Refinement TLS params.

Method: refined / Refine-ID: X-RAY DIFFRACTION

ID	L11 (°²)	L12 (°²)	L13 (°²)	L22 (°²)	L23 (°²)	L33 (°²)	S11 (Å °)	S12 (Å °)	S13 (Å °)	S21 (Å °)	S22 (Å °)	S23 (Å °)	S31 (Å °)	S32 (Å °)	S33 (Å °)	T11 (Å²)	T12 (Å²)	T13 (Å²)	T22 (Å²)	T23 (Å²)	T33 (Å²)	Origin x (Å)	Origin y (Å)	Origin z (Å)
1	5.35	0.3829	4.0837	1.1082	1.4473	4.3514	0.1859	-0.3331	-0.779	0.2156	-0.0396	0.0455	0.0117	-0.1047	-0.1463	0.0682	-0.048	-0.0182	-0.0194	0.0755	0.332	13.19	10.872	69.482
2	3.4515	0.136	1.5259	1.6232	0.4775	1.4737	0.0956	-0.3276	0.7073	-0.053	0.0314	-0.171	-0.0953	-0.2174	-0.127	0.0066	0.0153	0.0463	-0.0064	-0.0753	0.1951	29.265	31.938	90.431
3	9.2466	-2.7668	0.636	6.6257	-1.8331	3.5046	-1.3365	-1.4987	0.5444	1.5417	0.871	-0.8318	-1.1015	-1.7865	0.4654	0.2788	0.3759	-0.2323	0.5055	-0.5426	-0.0365	34.771	39.904	120.377
4	2.628	0.1187	1.2912	0.9914	0.817	1.6622	0.0966	-0.3632	0.0083	0.0027	0.0519	-0.2114	0.2123	0.0557	-0.1485	-0.0093	0.0263	-0.0126	0.0753	-0.0213	0.1725	41.458	15.618	96.804
5	2.3007	-0.2405	0.3737	0.2438	-0.0023	0.84	0.0829	-0.7297	-0.0285	-0.0069	0.0159	-0.0646	0.0774	-0.1872	-0.0989	0.0123	-0.0179	-0.008	0.188	0.0114	0.1036	29.691	18.549	99.166
6	3.8437	0.1896	2.2863	1.0709	-0.1072	6.5637	-0.6183	-1.5726	1.0761	1.0336	0.2146	-0.2889	-0.857	-1.1786	0.4037	0.1958	0.3133	-0.2747	0.7562	-0.6055	0.0166	39.387	37.127	121.263
7	3.413	0.3712	0.2376	1.9651	-0.2784	0.0705	0.1197	-0.2159	0.3967	-0.0135	-0.0808	-0.1003	0.109	-0.1969	-0.0389	-0.0193	0.004	0.0442	-0.0475	-0.0095	0.2335	28.525	30.093	84.555
8	2.6381	-1.4938	1.2832	0.8637	-0.5581	2.2113	0.1493	-0.1457	-0.3444	-0.0818	0.1737	0.3536	0.3667	-0.1195	-0.3229	0.0742	-0.042	-0.0624	-0.0924	0.0474	0.3765	11.418	8.929	70.085

Refinement TLS group

ID	Refine-ID	Refine TLS-ID	Auth asym-ID	Label asym-ID	Auth seq-ID	Label seq-ID
1	X-RAY DIFFRACTION	1	X	A	15 - 24	1 - 10
2	X-RAY DIFFRACTION	2	X	A	25 - 36	11 - 22
3	X-RAY DIFFRACTION	3	X	A	37 - 49	23 - 35
4	X-RAY DIFFRACTION	4	X	A	50 - 75	36 - 61
5	X-RAY DIFFRACTION	5	X	A	76 - 118	62 - 104
6	X-RAY DIFFRACTION	6	X	A	119 - 148	105 - 134
7	X-RAY DIFFRACTION	7	X	A	149 - 162	135 - 148
8	X-RAY DIFFRACTION	8	X	A	163 - 175	149 - 161

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