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- PDB-8std: S127A variant of LarB, a carboxylase/hydrolase involved in synthe... -

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Basic information

Entry
Database: PDB / ID: 8std
TitleS127A variant of LarB, a carboxylase/hydrolase involved in synthesis of the cofactor for lactate racemase, in complex with authentic substrate NaAD and soaked with CS2
ComponentsPyridinium-3,5-biscarboxylic acid mononucleotide synthase
KeywordsLYASE / Carboxylase / Hydrolase / LYASE (CARBON-CARBON)
Function / homology
Function and homology information


pyridinium-3,5-biscarboxylic acid mononucleotide synthase / 'de novo' IMP biosynthetic process / transferase activity / hydrolase activity / plasma membrane
Similarity search - Function
Pyridinium-3,5-biscarboxylic acid mononucleotide synthase / PurE domain / AIR carboxylase / AIR carboxylase
Similarity search - Domain/homology
NICOTINIC ACID ADENINE DINUCLEOTIDE / Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
Similarity search - Component
Biological speciesLactiplantibacillus plantarum WCFS1 (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.65 Å
AuthorsChatterjee, S. / Rankin, J.A. / Hu, J. / Hausinger, R.P.
Funding support United States, 2items
OrganizationGrant numberCountry
National Science Foundation (NSF, United States)CHE-1807073 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)GM128959 United States
CitationJournal: Biochemistry / Year: 2023
Title: Structure of the LarB-Substrate Complex and Identification of a Reaction Intermediate during Nickel-Pincer Nucleotide Cofactor Biosynthesis.
Authors: Chatterjee, S. / Nevarez, J.L. / Rankin, J.A. / Hu, J. / Hausinger, R.P.
History
DepositionMay 10, 2023Deposition site: RCSB / Processing site: RCSB
Revision 1.0Dec 27, 2023Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
B: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
C: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
D: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
E: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
F: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)163,17721
Polymers158,9656
Non-polymers4,21115
Water0
1
A: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
B: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
hetero molecules

A: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
B: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
hetero molecules

A: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
B: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
hetero molecules

A: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
B: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)217,66632
Polymers211,9548
Non-polymers5,71224
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_655-x+1,-y,z1
crystal symmetry operation3_545-y+1/2,x-1/2,z1
crystal symmetry operation4_555y+1/2,-x+1/2,z1
Buried area28810 Å2
ΔGint-350 kcal/mol
Surface area51460 Å2
MethodPISA
2
C: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
D: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
hetero molecules

C: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
D: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
hetero molecules

C: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
D: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
hetero molecules

C: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
D: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)217,56928
Polymers211,9548
Non-polymers5,61520
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_545-x,-y-1,z1
crystal symmetry operation3_445-y-1/2,x-1/2,z1
crystal symmetry operation4_545y+1/2,-x-1/2,z1
Buried area30360 Å2
ΔGint-338 kcal/mol
Surface area52370 Å2
MethodPISA
3
E: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
F: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
hetero molecules

E: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
F: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
hetero molecules

E: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
F: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
hetero molecules

E: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
F: Pyridinium-3,5-biscarboxylic acid mononucleotide synthase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)217,47224
Polymers211,9548
Non-polymers5,51816
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_655-x+1,-y,z1
crystal symmetry operation3_545-y+1/2,x-1/2,z1
crystal symmetry operation4_555y+1/2,-x+1/2,z1
Buried area31010 Å2
ΔGint-294 kcal/mol
Surface area52980 Å2
MethodPISA
Unit cell
Length a, b, c (Å)118.839, 118.839, 211.289
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number90
Space group name H-MP4212

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Components

#1: Protein
Pyridinium-3,5-biscarboxylic acid mononucleotide synthase / P2CMN synthase / Lactate racemase accessory protein LarB / Lactate racemase activation protein LarB ...P2CMN synthase / Lactate racemase accessory protein LarB / Lactate racemase activation protein LarB / Lactate racemase maturation protein LarB / Lactate racemization operon protein LarB / Nickel-pincer cofactor biosynthesis protein LarB / Nicotinic acid adenine dinucleotide carboxylase/hydrolase / NaAD carboxylase/hydrolase


Mass: 26494.227 Da / Num. of mol.: 6 / Mutation: S127A
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Lactiplantibacillus plantarum WCFS1 (bacteria)
Strain: ATCC BAA-793 / NCIMB 8826 / WCFS1 / Gene: larB, lp_0105 / Production host: Escherichia coli BL21(DE3) (bacteria)
References: UniProt: F9UST0, pyridinium-3,5-biscarboxylic acid mononucleotide synthase
#2: Chemical
ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 9 / Source method: obtained synthetically / Formula: Mg
#3: Chemical
ChemComp-DND / NICOTINIC ACID ADENINE DINUCLEOTIDE / DEAMIDO-NAD+


Mass: 665.418 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: C21H27N6O15P2 / Feature type: SUBJECT OF INVESTIGATION
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: 2.38 Å3/Da / Density % sol: 48.24 %
Crystal growTemperature: 277 K / Method: vapor diffusion, sitting drop
Details: 100 mM magnesium formate, 20% w/v PEG 3350, 2 mM nitrilotriacetic acid neutralized to a pH of ~7.5 with sodium hydroxide, and 0.7 mM zinc sulfate, 10 mM EDTA, 10 mM Nicotinic acid adenine ...Details: 100 mM magnesium formate, 20% w/v PEG 3350, 2 mM nitrilotriacetic acid neutralized to a pH of ~7.5 with sodium hydroxide, and 0.7 mM zinc sulfate, 10 mM EDTA, 10 mM Nicotinic acid adenine dinucleotide sodium salt, soaked with ~10-15% Carbon disulfide for 20 minutes during freezing

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 21-ID-D / Wavelength: 1.5498 Å
DetectorType: DECTRIS EIGER X 9M / Detector: PIXEL / Date: Nov 3, 2022
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5498 Å / Relative weight: 1
ReflectionResolution: 2.65→84.03 Å / Num. obs: 44856 / % possible obs: 100 % / Redundancy: 6.7 % / CC1/2: 0.983 / Net I/σ(I): 6.5
Reflection shellResolution: 2.65→2.75 Å / Mean I/σ(I) obs: 1.1 / Num. unique obs: 4607 / CC1/2: 0.38

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Processing

Software
NameVersionClassification
PHENIX(1.19_4092: ???)refinement
iMOSFLMdata reduction
Aimlessdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 2.65→78.96 Å / SU ML: 0.44 / Cross valid method: THROUGHOUT / σ(F): 1.34 / Phase error: 29.58 / Stereochemistry target values: ML
RfactorNum. reflection% reflection
Rfree0.2728 2245 5.04 %
Rwork0.2418 --
obs0.2434 44538 99.44 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Refinement stepCycle: LAST / Resolution: 2.65→78.96 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms8360 0 219 0 8579
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.0188752
X-RAY DIFFRACTIONf_angle_d1.00212026
X-RAY DIFFRACTIONf_dihedral_angle_d13.5882831
X-RAY DIFFRACTIONf_chiral_restr0.0511517
X-RAY DIFFRACTIONf_plane_restr0.0071533
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
2.65-2.710.38841400.35632612X-RAY DIFFRACTION100
2.71-2.770.38541340.33612589X-RAY DIFFRACTION100
2.77-2.840.3291430.3232620X-RAY DIFFRACTION100
2.84-2.920.34311310.31822613X-RAY DIFFRACTION100
2.92-30.36711310.31442625X-RAY DIFFRACTION100
3-3.10.38291310.30272606X-RAY DIFFRACTION100
3.1-3.210.35361440.28032627X-RAY DIFFRACTION100
3.21-3.340.25781340.26012600X-RAY DIFFRACTION100
3.34-3.490.2861520.24662643X-RAY DIFFRACTION100
3.49-3.670.2651370.24732629X-RAY DIFFRACTION100
3.67-3.90.26121440.22382652X-RAY DIFFRACTION100
3.91-4.210.25421430.2242651X-RAY DIFFRACTION100
4.21-4.630.20581270.19092626X-RAY DIFFRACTION98
4.63-5.30.2511530.20192656X-RAY DIFFRACTION98
5.3-6.680.2951490.26172707X-RAY DIFFRACTION99
6.68-78.960.23011520.21022837X-RAY DIFFRACTION97
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)
19.42014.79186.52422.50333.47112.05481.1269-2.71160.13332.2917-1.22890.75790.85270.57840.02411.2303-0.00380.12090.8131-0.30.924742.434-23.0054.827
23.3278-4.4384-2.33249.3666-0.60145.70420.18641.5337-1.925-1.3051-0.4061-0.45451.07290.4480.09160.84430.00570.18580.9005-0.36490.832543.47-22.608-2.579
36.9404-4.3012-1.03428.2481.17424.87411.13631.4118-0.208-2.2949-0.4926-0.4183-1.83850.5092-0.69141.0248-0.0740.15151.3114-0.20450.531140.459-15.112-7.305
47.0572-4.9497-5.5999.3115-1.00988.5514-0.09511.0424-0.9432-1.1463-2.54221.88142.0867-1.95860.88110.361-0.0221-0.2440.8894-0.46621.088627.178-13.1658.282
55.11660.5554-1.43156.80934.05166.457-0.01480.55860.314-0.8763-0.50670.9934-0.481-0.44010.46940.33210.0954-0.10430.4718-0.01950.449830.794-3.38111.925
67.18782.62330.39868.63691.21617.46640.08350.3896-0.21510.209-0.111-0.40490.1299-0.0664-0.0030.21910.0406-0.04420.23040.01610.37539.109-6.60118.388
76.3029-0.3409-0.45833.29553.00133.5416-0.153-0.73011.83660.4206-0.44990.947-0.0257-0.49480.67580.7199-0.0393-0.03810.7359-0.36851.058830.447-4.38243.488
80.8050.48451.12667.27862.59925.4602-0.4286-2.20970.13352.69510.1547-0.49351.0810.6760.010.96430.0727-0.12391.2024-0.25230.444336.616-10.08951.08
98.86963.543-0.62015.9933-0.10942.0164-0.4481-0.8082-0.31790.6007-0.18180.21020.5502-0.02650.58040.5141-0.09770.09670.3632-0.01960.387636.487-21.18536.424
106.3931-3.9707-3.0529.0357-0.49276.9683-0.6713-0.3107-0.86850.26630.035-0.10370.69090.27690.52950.4159-0.08240.09720.2573-0.02310.523445.364-26.42526.663
114.84734.78836.06754.34325.39878.99240.38860.3791-0.98350.79060.20550.08650.95050.6771-0.53770.4695-0.0338-0.0020.3087-0.05780.446944.538-17.85526.789
128.9747-1.4976-4.56191.6016-0.79256.05950.18350.07280.74030.3235-0.1885-0.1386-0.1179-0.08790.0130.3329-0.02930.0110.1802-0.00620.483743.253-12.77126.113
137.94551.63792.59554.1335-2.37896.71080.4031.05140.5-1.4008-0.39541.29720.8212-0.74140.00730.93850.1744-0.33890.8560.05420.6888-2.467-33.17819.719
142.9942-0.16891.25756.96630.08814.74340.12730.41490.3012-0.9915-0.017-0.5788-0.27690.0353-0.07660.3925-0.04110.13250.42720.0250.375216.805-36.20631.846
156.92520.11040.35124.0524-1.78017.4428-0.03730.4607-0.4997-0.39220.0307-0.10310.86820.2883-0.00060.2892-0.05090.02160.30530.04150.383811.73-47.39140.038
167.99823.1745-1.83883.6387-4.21865.5651-0.1597-0.14950.44460.68440.45840.4367-0.3823-0.1357-0.27440.38570.0682-0.04120.3654-0.00290.37318.739-35.2540.063
178.97793.45944.36677.1672.34257.1412-0.3174-2.1891-0.7891-0.0447-0.6488-1.58840.45431.95170.74010.6264-0.1596-0.07762.08930.3810.841518.658-37.0966.724
180.9572-0.0389-1.56592.4757-3.25046.90860.2749-1.6884-0.57331.1216-0.552-0.39090.3764-0.5112-0.01681.3003-1.0305-0.50042.71120.0670.231113.333-36.61377.813
190.56230.13080.61590.33920.59292.13450.1598-0.98580.53660.3448-0.2063-0.176-0.37560.10410.10851.1317-0.8243-0.11072.8045-0.504-0.47568.247-34.00969.569
203.7877-4.71133.54496.4194-4.42629.0272-0.4569-0.93072.30880.627-0.7912-0.2079-1.79980.93871.14380.7319-0.28450.0680.8595-0.40980.84575.678-23.95357.404
216.4989-0.06710.04243.7708-1.3687.58460.012-1.29070.85610.5022-0.07360.6221-0.81720.05960.0870.4491-0.03810.12030.5305-0.22930.6347-3.016-30.07453.77
226.7696-2.6977-1.18437.0962-5.16659.34730.0437-0.29540.115-0.19640.1674-0.0605-0.0122-0.0773-0.29990.3128-0.0025-0.04830.3929-0.10580.3121-0.396-35.94649.388
236.77591.53061.92455.88650.48887.75860.1341-0.1127-1.10230.668-0.7319-0.356-0.0030.41030.60440.3159-0.04080.06410.3565-0.00080.5959-2.505-45.45646.613
248.43157.9722-0.60468.7082.32115.08320.3499-1.0066-0.07-0.4885-0.8354-0.2265-0.52720.90920.37090.3518-0.0119-0.04240.6052-0.05650.387710.125-31.22349.143
251.7026-2.17133.47127.2274-3.25677.454-0.46220.0490.4618-1.74461.4642-0.87751.34390.0407-1.11461.75040.34710.26251.2728-0.02371.109664.988-33.81579.235
263.7161-2.4199-0.34994.47710.44321.9466-0.3061-0.116-0.138-0.2477-0.9507-1.0132-0.41290.97520.74281.59140.42470.80871.02150.27330.728860.085-26.73271.692
273.37481.45943.314722.27474.06910.0321.5573-0.28940.9722-0.12920.10891.46730.5099-0.08441.64090.18730.47981.08570.16520.773553.658-22.84664.984
284.55744.3765-5.9624.4137-5.45368.4069-0.5905-0.6038-0.3234-0.4985-0.34931.10682.0477-0.48031.1681.0628-0.35960.03940.8438-0.20110.624839.868-28.76879.637
295.94070.02062.28912.6825-1.31345.97450.0527-0.33140.2034-0.7153-0.39030.42031.1403-0.96130.35120.8617-0.31160.23290.8079-0.33510.630637.602-18.59483.41
302.5066-2.26481.85423.8891-2.00077.0036-0.37890.00350.6768-0.181-0.46-0.4309-0.2559-0.78340.69930.4675-0.03060.15860.5025-0.21310.759446.159-10.41288.996
318.16354.50751.10268.7572-2.28445.124-0.78070.7266-0.1621-0.83060.5273-0.77931.6894-0.88530.17740.8426-0.14710.3470.5276-0.12970.660947.672-22.53888.925
321.26650.1338-2.48234.74962.55328.3863-0.1224-1.11810.70260.78830.73041.21440.7662-1.65580.41620.83260.04010.85442.0605-0.97240.47536.049-19.713115.134
335.2936-1.4219-2.84340.5770.56971.8321-0.2859-2.37960.3710.3773-0.2186-0.29541.1323-0.34630.50161.2125-0.44090.28771.7855-0.21980.684443.667-23.141119.5
342.1722-2.7235-0.99124.47032.01771.9911-0.2977-2.0399-1.1002-0.3557-0.8825-0.64131.7899-0.71370.85331.2233-0.4740.39911.15470.07390.685451.584-29.55108.225
356.97550.9992-1.12313.1446-1.13634.21130.442-0.8411-0.6581-0.2163-1.0005-1.36962.0679-0.39140.67061.6766-0.15460.43930.86240.1150.878861.17-33.294102.384
363.0222-3.8379-1.12444.73650.80777.45420.0112-0.452-0.40790.1108-0.5716-0.61010.78080.47240.30671.1598-0.26620.44160.55220.04380.619559.384-26.00797.743
375.91652.21650.74193.0048-2.92125.50220.21740.34010.78940.5519-0.67350.02081.19580.08150.3660.6676-0.02820.31790.58180.00760.699959.053-18.32397.661
386.57034.42614.43623.34821.5148.1550.04741.18410.130.67110.8368-0.82160.81030.2508-0.69310.7123-0.11190.28910.75-0.25740.845254.729-19.82894.715
395.9013-2.6135-4.10375.66590.94625.5706-0.11160.8582-0.2558-0.038-0.60531.02711.1492-1.580.6161.1639-0.57310.31821.3597-0.27560.60943.768-28.297100.221
Refinement TLS group
IDRefine-IDRefine TLS-IDSelection detailsAuth asym-IDAuth seq-ID
1X-RAY DIFFRACTION1( CHAIN A AND RESID 44:58 )A44 - 58
2X-RAY DIFFRACTION2( CHAIN A AND RESID 59:82 )A59 - 82
3X-RAY DIFFRACTION3( CHAIN A AND RESID 83:107 )A83 - 107
4X-RAY DIFFRACTION4( CHAIN A AND RESID 108:125 )A108 - 125
5X-RAY DIFFRACTION5( CHAIN A AND RESID 126:188 )A126 - 188
6X-RAY DIFFRACTION6( CHAIN A AND RESID 189:246 )A189 - 246
7X-RAY DIFFRACTION7( CHAIN B AND RESID 44:82 )B44 - 82
8X-RAY DIFFRACTION8( CHAIN B AND RESID 83:107 )B83 - 107
9X-RAY DIFFRACTION9( CHAIN B AND RESID 108:153 )B108 - 153
10X-RAY DIFFRACTION10( CHAIN B AND RESID 154:190 )B154 - 190
11X-RAY DIFFRACTION11( CHAIN B AND RESID 191:204 )B191 - 204
12X-RAY DIFFRACTION12( CHAIN B AND RESID 205:246 )B205 - 246
13X-RAY DIFFRACTION13( CHAIN C AND RESID 45:95 )C45 - 95
14X-RAY DIFFRACTION14( CHAIN C AND RESID 96:190 )C96 - 190
15X-RAY DIFFRACTION15( CHAIN C AND RESID 191:218 )C191 - 218
16X-RAY DIFFRACTION16( CHAIN C AND RESID 219:246 )C219 - 246
17X-RAY DIFFRACTION17( CHAIN D AND RESID 46:82 )D46 - 82
18X-RAY DIFFRACTION18( CHAIN D AND RESID 83:96 )D83 - 96
19X-RAY DIFFRACTION19( CHAIN D AND RESID 97:107 )D97 - 107
20X-RAY DIFFRACTION20( CHAIN D AND RESID 108:125 )D108 - 125
21X-RAY DIFFRACTION21( CHAIN D AND RESID 126:190 )D126 - 190
22X-RAY DIFFRACTION22( CHAIN D AND RESID 191:204 )D191 - 204
23X-RAY DIFFRACTION23( CHAIN D AND RESID 205:223 )D205 - 223
24X-RAY DIFFRACTION24( CHAIN D AND RESID 224:250 )D224 - 250
25X-RAY DIFFRACTION25( CHAIN E AND RESID 29:48 )E29 - 48
26X-RAY DIFFRACTION26( CHAIN E AND RESID 49:82 )E49 - 82
27X-RAY DIFFRACTION27( CHAIN E AND RESID 83:107 )E83 - 107
28X-RAY DIFFRACTION28( CHAIN E AND RESID 108:125 )E108 - 125
29X-RAY DIFFRACTION29( CHAIN E AND RESID 126:190 )E126 - 190
30X-RAY DIFFRACTION30( CHAIN E AND RESID 191:218 )E191 - 218
31X-RAY DIFFRACTION31( CHAIN E AND RESID 219:246 )E219 - 246
32X-RAY DIFFRACTION32( CHAIN F AND RESID 44:69 )F44 - 69
33X-RAY DIFFRACTION33( CHAIN F AND RESID 70:106 )F70 - 106
34X-RAY DIFFRACTION34( CHAIN F AND RESID 107:141 )F107 - 141
35X-RAY DIFFRACTION35( CHAIN F AND RESID 142:169 )F142 - 169
36X-RAY DIFFRACTION36( CHAIN F AND RESID 170:188 )F170 - 188
37X-RAY DIFFRACTION37( CHAIN F AND RESID 189:218 )F189 - 218
38X-RAY DIFFRACTION38( CHAIN F AND RESID 219:232 )F219 - 232
39X-RAY DIFFRACTION39( CHAIN F AND RESID 233:246 )F233 - 246

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