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- PDB-6krb: High resolution crystal structure of an Acylphosphatase protein cage -

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Basic information

Entry
Database: PDB / ID: 6krb
TitleHigh resolution crystal structure of an Acylphosphatase protein cage
ComponentsAcylphosphatase
KeywordsHYDROLASE / Acylphosphatase
Function / homology
Function and homology information


acylphosphatase / acylphosphatase activity
Similarity search - Function
Acylphosphatase signature 2. / Acylphosphatase / Acylphosphatase, conserved site / Acylphosphatase / Acylphosphatase-like domain / Acylphosphatase-like domain profile. / Acylphosphatase-like domain superfamily / Alpha-Beta Plaits - #100 / Alpha-Beta Plaits / 2-Layer Sandwich / Alpha Beta
Similarity search - Domain/homology
Biological speciesVibrio cholerae serotype O1 (bacteria)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.375 Å
AuthorsChatterjee, S. / Nath, S. / Sen, U.
CitationJournal: Biochem.Biophys.Res.Commun. / Year: 2020
Title: High resolution structure of Vibrio cholerae acylphosphatase (VcAcP) cage: Identification of drugs, location of its binding site and engineering to facilitate cage formation.
Authors: Chatterjee, S. / Nath, S. / Sen, U.
History
DepositionAug 21, 2019Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0May 13, 2020Provider: repository / Type: Initial release
Revision 1.1Nov 22, 2023Group: Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Acylphosphatase
B: Acylphosphatase
C: Acylphosphatase
D: Acylphosphatase
E: Acylphosphatase
F: Acylphosphatase
G: Acylphosphatase
H: Acylphosphatase
I: Acylphosphatase
J: Acylphosphatase
K: Acylphosphatase
L: Acylphosphatase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)129,27179
Polymers122,86312
Non-polymers6,40867
Water11,854658
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: light scattering
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area35390 Å2
ΔGint-1053 kcal/mol
Surface area41170 Å2
MethodPISA
Unit cell
Length a, b, c (Å)104.310, 104.310, 146.430
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number144
Space group name H-MP31

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Components

#1: Protein
Acylphosphatase / / Acylphosphate phosphohydrolase


Mass: 10238.567 Da / Num. of mol.: 12
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Vibrio cholerae serotype O1 (strain ATCC 39541 / Classical Ogawa 395 / O395) (bacteria)
Gene: acyP, VC0395_A0969, VC395_1474 / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: A5F8G9, acylphosphatase
#2: Chemical...
ChemComp-SO4 / SULFATE ION / Sulfate


Mass: 96.063 Da / Num. of mol.: 60 / Source method: obtained synthetically / Formula: SO4 / Feature type: SUBJECT OF INVESTIGATION
#3: Chemical
ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL / Glycerol


Mass: 92.094 Da / Num. of mol.: 7 / Source method: obtained synthetically / Formula: C3H8O3
#4: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 658 / Source method: isolated from a natural source / Formula: H2O
Has ligand of interestY

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 3.75 Å3/Da / Density % sol: 67.22 %
Crystal growTemperature: 293 K / Method: vapor diffusion / Details: 2.4M AMS, 0.1M Citric acid pH 4.0

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU / Wavelength: 1.54 Å
DetectorType: MARRESEARCH / Detector: IMAGE PLATE / Date: Jul 21, 2016
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.54 Å / Relative weight: 1
ReflectionResolution: 2.36→56.9 Å / Num. obs: 71399 / % possible obs: 97.8 % / Redundancy: 5.9 % / Rmerge(I) obs: 0.149 / Net I/σ(I): 11.4
Reflection shellResolution: 2.36→2.45 Å / Num. unique obs: 3134 / Rpim(I) all: 0.505

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Processing

Software
NameVersionClassification
PHENIXphenix.refine: 1.9_1692refinement
iMOSFLMdata reduction
Aimlessdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 4HI2
Resolution: 2.375→49.132 Å / SU ML: 0.33 / Cross valid method: THROUGHOUT / σ(F): 1.96 / Phase error: 24.62 / Stereochemistry target values: ML
RfactorNum. reflection% reflection
Rfree0.241 3466 4.87 %
Rwork0.194 67774 -
obs0.196 71240 99.15 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Displacement parametersBiso max: 141.08 Å2 / Biso mean: 41.4702 Å2 / Biso min: 18.39 Å2
Refinement stepCycle: LAST / Resolution: 2.375→49.132 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms8606 0 342 658 9606
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.0029071
X-RAY DIFFRACTIONf_angle_d0.50412240
X-RAY DIFFRACTIONf_chiral_restr0.021273
X-RAY DIFFRACTIONf_plane_restr0.0021548
X-RAY DIFFRACTIONf_dihedral_angle_d14.2683238
LS refinement shell

Refine-ID: X-RAY DIFFRACTION / Rfactor Rfree error: 0 / Total num. of bins used: 25

Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkNum. reflection all% reflection obs (%)
2.3753-2.40780.3239780.3052271234983
2.4078-2.44220.30071660.295927492915100
2.4422-2.47870.32311340.284627142848100
2.4787-2.51740.3732880.282627462834100
2.5174-2.55870.28871340.282627662900100
2.5587-2.60280.32612100.259627102920100
2.6028-2.65010.28591520.255626852837100
2.6501-2.70110.26391500.245827042854100
2.7011-2.75620.30261080.231127772885100
2.7562-2.81620.25831800.224927262906100
2.8162-2.88170.30371760.224826342810100
2.8817-2.95370.28761380.212527602898100
2.9537-3.03360.29371560.215327352891100
3.0336-3.12280.27831180.20227492867100
3.1228-3.22360.2241620.184827552917100
3.2236-3.33880.22741400.176927102850100
3.3388-3.47240.26621240.194427522876100
3.4724-3.63040.1951680.18962684285299
3.6304-3.82180.29171390.20272724286399
3.8218-4.06110.31791100.181327352845100
4.0611-4.37450.16451280.138527862914100
4.3745-4.81440.13881580.119826842842100
4.8144-5.51020.17721260.149227492875100
5.5102-6.93920.22351130.177427842897100
6.9392-49.14210.20391100.17662685279598
Refinement TLS params.

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

IDL112)L122)L132)L222)L232)L332)S11 (Å °)S12 (Å °)S13 (Å °)S21 (Å °)S22 (Å °)S23 (Å °)S31 (Å °)S32 (Å °)S33 (Å °)T112)T122)T132)T222)T232)T332)Origin x (Å)Origin y (Å)Origin z (Å)
16.7896-3.81431.98746.4971-1.20566.2003-0.20180.1304-0.08840.55520.14480.0678-0.233-0.06650.16340.3244-0.0504-0.06010.2061-0.04430.246-28.4409-33.6321-39.2539
20.8448-0.38420.16251.3256-0.7532.5534-0.0310.0105-0.05430.0064-0.0974-0.05620.0634-0.11570.09440.3391-0.0636-0.0220.2163-0.02070.3293-23.4848-31.1643-33.4576
36.6716-0.28910.94962.5048-0.63632.639-0.09410.2949-0.0354-0.20840.1349-0.2240.15850.0331-0.02520.3772-0.09750.00530.2378-0.03720.2624-25.5945-32.1526-39.361
45.6841-0.40190.71485.58451.54894.3790.0862-0.0972-0.31520.5488-0.28670.04430.74780.13560.04280.36380.0768-0.03870.3021-0.0250.3436-1.4067-28.8488-20.5579
53.2231.55620.51412.17070.38881.96410.15010.0659-0.2186-0.08110.1446-0.2980.18250.1783-0.25570.26960.0206-0.030.32470.00150.258-4.9212-20.0866-24.3972
63.219-0.8448-1.59588.7666-2.92279.22970.07280.1525-0.3346-0.441-0.16950.04181.03910.41940.12060.35740.0179-0.05830.427-0.10190.3164-1.3712-28.5478-27.1507
73.62732.2804-3.24616.7138-3.3128.1645-0.1897-0.15670.03220.23060.0688-0.42160.4180.22460.04270.2474-0.0342-0.06320.3141-0.08660.302-2.6612-25.7535-18.2113
83.37391.4967-0.33945.18632.17235.57510.0038-0.26240.2168-0.21510.1059-0.4297-0.0027-0.0659-0.23540.4778-0.11530.03250.30630.02870.3371-12.2537-2.9722-40.6632
92.36820.27820.69250.8155-0.64743.0765-0.05920.1560.05790.09240.15050.0011-0.25830.0201-0.13760.3283-0.0817-0.00220.2720.01620.2881-17.4673-9.232-38.7975
105.81915.65040.57787.49921.81773.7488-0.21430.0933-0.6037-0.82990.3484-0.5398-0.23940.2189-0.15450.3692-0.02460.09580.22420.01970.2889-8.4089-10.8815-44.0944
115.12231.84841.8397.58085.47934.0932-0.22580.79350.5263-1.88610.04710.5265-0.8892-0.77530.1290.5974-0.122-0.01570.60290.06920.2534-15.6552-4.7017-49.9496
125.15920.8411.57056.96232.00363.76340.0364-0.67460.32370.2659-0.0654-0.24780.4156-0.2480.10080.33320.02150.01480.32570.03070.2137-15.3644-1.1379-31.6834
134.2829-0.47880.29477.78761.13393.68110.18170.3894-0.7333-0.5986-0.0088-0.2582-0.1062-0.1875-0.25130.4476-0.11150.00420.43510.0090.4555-39.4407-7.3958-43.5634
143.19820.72880.18446.180.99453.384-0.220.14540.15650.0360.28430.1937-0.2159-0.0381-0.08190.28950.0122-0.00210.34230.05350.2376-41.8036-1.9928-33.1432
153.0538-3.2394-2.65888.68114.22383.01360.18021.3457-0.0895-0.8444-0.47841.51850.3736-1.13320.31980.492-0.0484-0.15640.62130.01730.4992-49.1982-6.8907-41.2659
164.529-1.4591-5.25614.88431.41779.1899-0.26731.00460.885-0.60570.49950.1104-0.2033-0.6378-0.05540.3826-0.0339-0.08420.47880.03450.4001-48.05623.519-38.0696
177.7952-2.3422-4.24925.33032.09436.7776-0.13140.2344-0.28220.12960.2887-0.4134-0.16610.4355-0.20950.3798-0.1029-0.00460.315-0.00710.3826-33.2531-8.3065-37.8079
184.40345.0081-2.22848.5579-4.59724.35250.5745-0.16410.35650.502-0.55510.4592-0.46950.4464-0.0130.31060.05110.1040.4161-0.06020.3155-51.18931.91-9.3316
190.69590.99540.1072.0728-1.01163.23580.0040.0473-0.019-0.0531-0.08590.0298-0.0763-0.17460.07980.2687-0.02280.0680.3608-0.05270.3138-49.2531-5.994-11.5415
207.43063.56440.87363.87023.46084.3580.00080.17070.8612-0.4339-0.17420.8-0.5415-0.62570.37510.38720.13260.01520.48750.04350.3821-57.2797-0.6478-16.1209
212.68032.30182.92173.36075.23058.3579-0.1118-0.84120.3375-0.2357-0.37551.2718-0.6325-1.24390.24950.34940.03960.10740.4942-0.00880.5581-59.2737-2.9287-5.5994
226.45466.08561.95427.2871.09864.8196-0.14640.3253-0.0271-0.8421-0.1195-0.4016-0.4290.27250.10820.270.030.02180.38440.01090.2637-41.86461.4721-9.2692
233.1448-0.63720.09073.17980.60624.65040.026-0.1524-0.0990.17730.13170.36240.6826-0.69880.07620.3814-0.0286-0.03520.3526-0.02180.371-51.3207-30.1422-21.76
241.5938-0.37250.02681.62852.78865.3022-0.10960.05070.03290.01250.11980.03730.1486-0.1048-0.0010.3289-0.0761-0.01470.2967-0.00210.2953-46.842-24.2798-25.7254
253.3820.7918-0.4855.6201-1.55552.6953-0.13770.3675-0.0392-0.03430.18960.72680.3767-1.3692-0.01180.3113-0.0681-0.0060.3819-0.03480.4622-57.4615-23.5844-24.6605
267.4404-2.4297-0.25495.4482-4.84336.5264-0.49680.4766-0.96630.01830.19880.92730.8465-0.6569-0.06210.4762-0.23640.05370.5444-0.07910.4332-54.3366-31.9863-31.0974
273.0561-0.8621-0.97853.6007-4.53227.3193-0.35570.03710.10870.1580.44880.249-0.1083-0.0297-0.24320.3377-0.0532-0.04710.3297-0.02790.3661-43.4175-29.0616-16.6185
286.3149-1.4171.75264.8426-0.39513.76820.3345-0.308-0.56850.6083-0.2665-0.3720.01770.31540.07710.4524-0.064-0.0090.47210.03030.3818-26.01840.41949.8503
297.5356-1.52330.50413.4024-0.24454.27030.1801-0.39330.5125-0.0262-0.14130.018-0.1962-0.1128-0.08660.324-0.02140.0280.2654-0.02160.2255-29.92145.9764-1.8471
305.5759-0.67512.51798.6596-1.52067.89360.0962-0.56680.33040.7779-0.1135-0.121-0.61320.29630.05150.3618-0.06160.00620.4503-0.06750.3042-26.36339.08466.0434
312.2897-1.80970.82537.5321-4.97943.49740.41890.2675-0.1699-0.1195-0.0769-0.18140.37570.1127-0.42020.2877-0.01380.02980.3899-0.02230.3833-28.3067-5.45394.1505
327.3162-0.1661-3.14431.49980.80154.028-0.15270.01530.20480.1273-0.02510.3008-0.0856-0.20770.18420.41980.069-0.0010.28760.04660.373-28.655315.0934-23.8168
332.23610.58510.90190.94450.52123.15960.0221-0.2180.0465-0.03370.0755-0.004-0.286-0.0658-0.10940.3312-0.02510.00710.31950.08040.3265-22.32319.5312-22.1403
347.3859-3.65152.68057.1309-0.95533.1813-0.2608-0.29120.67760.41770.0338-0.1655-0.6341-0.21490.15480.48040.01590.02420.3247-0.0160.3023-22.949619.1858-17.5253
355.23571.0744.38146.5511-0.24333.8904-0.2738-0.16520.8486-0.9077-0.2464-0.1315-0.9270.11670.37830.50630.0090.01360.30710.08080.4723-19.798219.7785-28.0143
364.18150.61431.03022.54491.17155.3486-0.114-0.16040.040.2311-0.15340.2263-0.0722-0.15420.15830.3326-0.0655-0.0290.3730.04560.3417-32.53066.888-24.4105
372.202-0.4865-1.26374.1706-0.45638.1915-0.00370.12010.1164-0.4177-0.3467-0.0923-0.3360.78540.16370.32910.0113-0.07830.4244-0.01380.4109-0.4107-0.7805-11.8687
381.13570.31671.33921.8366-0.49862.69010.0907-0.05680.0066-0.0296-0.0705-0.1311-0.07280.2553-0.1270.213-0.0394-0.0280.38-0.01230.291-7.711-1.6728-7.9366
399.0698-1.6643-4.79284.42062.59653.82190.3272-0.0641.06450.15140.1418-0.5812-0.8880.6961-0.55990.325-0.0469-0.02770.32440.02410.4844-3.05287.8879-8.997
401.5535-0.7762-1.72145.80823.34236.03060.1984-0.1311-0.1627-0.1156-0.1335-0.3635-0.07150.244-0.17420.2649-0.0015-0.04270.41760.05070.3464-2.3579-3.934-11.6616
416.2695-4.1562-2.42573.64270.66884.68660.34980.20620.22580.1859-0.5282-0.27350.0793-0.19590.22490.2277-0.0467-0.05660.4394-0.03510.2132-9.2588-21.6446.1119
420.4047-0.5533-0.95052.69740.71942.53440.00430.0885-0.0334-0.1267-0.1387-0.0772-0.0450.03920.15070.22230.0116-0.0340.37980.00290.2901-13.3992-25.3479-0.2051
435.17053.35811.86787.24593.53516.42590.1501-0.87310.0280.6728-0.4012-0.23010.1771-0.60040.21510.3970.0532-0.03870.64730.06070.2629-13.9404-26.363411.5527
446.24232.33032.54927.28685.28376.05480.2695-0.1621-0.99290.72330.1432-0.66590.69730.6736-0.36550.24590.02310.01210.37670.0450.3193-7.7229-32.25685.2207
454.86131.4002-0.74158.3050.13460.99510.1820.00120.4604-0.3769-0.2340.4871-0.3518-0.19420.01580.2233-0.05620.04420.3913-0.0050.2897-12.1167-14.55650.2922
467.1151.8842.94033.7413-0.80443.36030.09020.1329-0.2649-0.1295-0.14210.13780.57410.61240.04510.42140.0717-0.00310.2712-0.02590.2693-26.4838-43.2334-13.0883
472.58450.45690.64531.84630.52320.97340.09460.1503-0.32870.00860.0027-0.01740.18880.1528-0.02810.3213-0.0458-0.00160.3007-0.03180.2849-32.2996-35.8935-9.2792
486.45-2.5587-4.27034.98120.70819.0033-0.1955-0.5114-0.1960.45090.0759-0.34360.95770.73850.19830.48920.0021-0.08360.3513-0.01070.3425-26.7284-43.1723-6.5203
498.60620.0051-4.12274.1425-0.75884.2770.07030.1474-0.5612-0.1691-0.2221-0.02020.21990.20130.10120.3765-0.0248-0.11210.37360.01480.3408-28.5668-40.6032-15.3586
502.1530.3132-0.67883.79010.07742.12580.0092-0.08840.1007-0.07760.09760.1933-0.0192-0.1817-0.04190.2206-0.01270.01120.42630.01340.214-37.6637-20.08395.4732
515.048-0.07971.35094.4919-1.37743.8029-0.1828-0.3277-0.15640.06480.13040.07830.0297-0.09820.00270.24340.0030.07960.2829-0.02370.235-40.5544-22.54277.3277
Refinement TLS group
IDRefine-IDRefine TLS-IDSelection detailsAuth asym-IDAuth seq-ID
1X-RAY DIFFRACTION1chain 'A' and (resid 2 through 13 )A2 - 13
2X-RAY DIFFRACTION2chain 'A' and (resid 14 through 51 )A14 - 51
3X-RAY DIFFRACTION3chain 'A' and (resid 52 through 91 )A52 - 91
4X-RAY DIFFRACTION4chain 'B' and (resid 1 through 13 )B1 - 13
5X-RAY DIFFRACTION5chain 'B' and (resid 14 through 43 )B14 - 43
6X-RAY DIFFRACTION6chain 'B' and (resid 44 through 69 )B44 - 69
7X-RAY DIFFRACTION7chain 'B' and (resid 70 through 91 )B70 - 91
8X-RAY DIFFRACTION8chain 'C' and (resid 1 through 13 )C1 - 13
9X-RAY DIFFRACTION9chain 'C' and (resid 14 through 51 )C14 - 51
10X-RAY DIFFRACTION10chain 'C' and (resid 52 through 69 )C52 - 69
11X-RAY DIFFRACTION11chain 'C' and (resid 70 through 77 )C70 - 77
12X-RAY DIFFRACTION12chain 'C' and (resid 78 through 91 )C78 - 91
13X-RAY DIFFRACTION13chain 'D' and (resid 1 through 10 )D1 - 10
14X-RAY DIFFRACTION14chain 'D' and (resid 11 through 51 )D11 - 51
15X-RAY DIFFRACTION15chain 'D' and (resid 52 through 64 )D52 - 64
16X-RAY DIFFRACTION16chain 'D' and (resid 65 through 77 )D65 - 77
17X-RAY DIFFRACTION17chain 'D' and (resid 78 through 91 )D78 - 91
18X-RAY DIFFRACTION18chain 'E' and (resid 1 through 13 )E1 - 13
19X-RAY DIFFRACTION19chain 'E' and (resid 14 through 51 )E14 - 51
20X-RAY DIFFRACTION20chain 'E' and (resid 52 through 69 )E52 - 69
21X-RAY DIFFRACTION21chain 'E' and (resid 70 through 77 )E70 - 77
22X-RAY DIFFRACTION22chain 'E' and (resid 78 through 91 )E78 - 91
23X-RAY DIFFRACTION23chain 'F' and (resid 1 through 13 )F1 - 13
24X-RAY DIFFRACTION24chain 'F' and (resid 14 through 51 )F14 - 51
25X-RAY DIFFRACTION25chain 'F' and (resid 52 through 69 )F52 - 69
26X-RAY DIFFRACTION26chain 'F' and (resid 70 through 77 )F70 - 77
27X-RAY DIFFRACTION27chain 'F' and (resid 78 through 91 )F78 - 91
28X-RAY DIFFRACTION28chain 'G' and (resid 1 through 10 )G1 - 10
29X-RAY DIFFRACTION29chain 'G' and (resid 11 through 43 )G11 - 43
30X-RAY DIFFRACTION30chain 'G' and (resid 44 through 77 )G44 - 77
31X-RAY DIFFRACTION31chain 'G' and (resid 78 through 91 )G78 - 91
32X-RAY DIFFRACTION32chain 'H' and (resid 1 through 13 )H1 - 13
33X-RAY DIFFRACTION33chain 'H' and (resid 14 through 51 )H14 - 51
34X-RAY DIFFRACTION34chain 'H' and (resid 52 through 69 )H52 - 69
35X-RAY DIFFRACTION35chain 'H' and (resid 70 through 77 )H70 - 77
36X-RAY DIFFRACTION36chain 'H' and (resid 78 through 91 )H78 - 91
37X-RAY DIFFRACTION37chain 'I' and (resid 1 through 13 )I1 - 13
38X-RAY DIFFRACTION38chain 'I' and (resid 14 through 51 )I14 - 51
39X-RAY DIFFRACTION39chain 'I' and (resid 52 through 69 )I52 - 69
40X-RAY DIFFRACTION40chain 'I' and (resid 70 through 91 )I70 - 91
41X-RAY DIFFRACTION41chain 'J' and (resid 1 through 13 )J1 - 13
42X-RAY DIFFRACTION42chain 'J' and (resid 14 through 51 )J14 - 51
43X-RAY DIFFRACTION43chain 'J' and (resid 52 through 64 )J52 - 64
44X-RAY DIFFRACTION44chain 'J' and (resid 65 through 77 )J65 - 77
45X-RAY DIFFRACTION45chain 'J' and (resid 78 through 91 )J78 - 91
46X-RAY DIFFRACTION46chain 'K' and (resid 1 through 13 )K1 - 13
47X-RAY DIFFRACTION47chain 'K' and (resid 14 through 43 )K14 - 43
48X-RAY DIFFRACTION48chain 'K' and (resid 44 through 69 )K44 - 69
49X-RAY DIFFRACTION49chain 'K' and (resid 70 through 91 )K70 - 91
50X-RAY DIFFRACTION50chain 'L' and (resid 1 through 51 )L1 - 51
51X-RAY DIFFRACTION51chain 'L' and (resid 52 through 91 )L52 - 91

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