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- PDB-9zgl: Ancestrally reconstructed acetolactate synthase - Ancestor N259 w... -

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Basic information

Entry
Database: PDB / ID: 9zgl
TitleAncestrally reconstructed acetolactate synthase - Ancestor N259 with bound ThDP and magnesium.
ComponentsAncestral acetolactate synthase, catabolic
KeywordsTRANSFERASE / ThDP / Ancestor
Function / homologyTHIAMINE DIPHOSPHATE
Function and homology information
Biological speciessynthetic construct (others)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.99 Å
AuthorsDouw, A. / Guddat, L.W.
Funding support Australia, 1items
OrganizationGrant numberCountry
Australian Research Council (ARC) Australia
CitationJournal: To Be Published
Title: Engineering of Acetolactate Synthase for Isobutanol Production Using Ancestral Sequence Reconstruction
Authors: Douw, A. / Krco, S. / Bayaraa, T. / Foley, G. / Davis, S.J. / Paredes Trujillo, O. / Asser, L. / Sieber, V. / Boden, M. / Hine, D. / Guddat, L. / Schenk, G.
History
DepositionDec 3, 2025Deposition site: RCSB / Processing site: RCSB
Revision 1.0Dec 17, 2025Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Ancestral acetolactate synthase, catabolic
B: Ancestral acetolactate synthase, catabolic
C: Ancestral acetolactate synthase, catabolic
D: Ancestral acetolactate synthase, catabolic
hetero molecules


Theoretical massNumber of molelcules
Total (without water)247,88712
Polymers246,0884
Non-polymers1,7988
Water86548
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area24670 Å2
ΔGint-139 kcal/mol
Surface area61720 Å2
MethodPISA
Unit cell
Length a, b, c (Å)162.942, 163.079, 86.311
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number19
Space group name H-MP212121
Space group name HallP2ac2ab
Symmetry operation#1: x,y,z
#2: x+1/2,-y+1/2,-z
#3: -x,y+1/2,-z+1/2
#4: -x+1/2,-y,z+1/2

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Components

#1: Protein
Ancestral acetolactate synthase, catabolic


Mass: 61522.023 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) synthetic construct (others) / Plasmid: pET-28a(+) / Production host: Escherichia coli (E. coli) / Strain (production host): Rosetta(DE3) / References: acetolactate synthase
#2: Chemical
ChemComp-TPP / THIAMINE DIPHOSPHATE


Mass: 425.314 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C12H19N4O7P2S / Feature type: SUBJECT OF INVESTIGATION
#3: Chemical
ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Mg / Feature type: SUBJECT OF INVESTIGATION
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 48 / Source method: isolated from a natural source / Formula: H2O
Has ligand of interestY
Has protein modificationN

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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: 2.23 Å3/Da / Density % sol: 44.8 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 8
Details: 0.1M Tris.HCl, 30% (w/v) MPEG2000, 1 mM NADH, 10 mM MgCl2, 20% (v/v) glycerol

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: Australian Synchrotron / Beamline: MX2 / Wavelength: 0.95372 Å
DetectorType: DECTRIS EIGER X 16M / Detector: PIXEL / Date: Nov 2, 2022
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.95372 Å / Relative weight: 1
ReflectionResolution: 2.99→47.93 Å / Num. obs: 37854 / % possible obs: 81.8 % / Redundancy: 4.2 % / Biso Wilson estimate: 55.65 Å2 / CC1/2: 0.985 / CC star: 0.996 / Rmerge(I) obs: 0.1991 / Rpim(I) all: 0.09975 / Rrim(I) all: 0.2241 / Χ2: 0.58 / Net I/σ(I): 8.25
Reflection shellResolution: 2.994→3.101 Å / Redundancy: 4.1 % / Rmerge(I) obs: 1.144 / Num. unique obs: 3710 / CC1/2: 0.489 / CC star: 0.811 / Rpim(I) all: 0.5729 / Rrim(I) all: 1.288 / % possible all: 79.98

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Processing

Software
NameVersionClassification
XDSdata reduction
Aimless0.7.8data scaling
PHASER2.8.3phasing
PHENIX1.20.1-4487refinement
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 2.99→44.27 Å / SU ML: 0.4058 / Cross valid method: FREE R-VALUE / σ(F): 1.35 / Phase error: 24.4437
Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
RfactorNum. reflection% reflection
Rfree0.2548 1990 5.26 %
Rwork0.1948 35836 -
obs0.1979 37826 80.34 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.1 Å / Solvent model: FLAT BULK SOLVENT MODEL
Displacement parametersBiso mean: 51.57 Å2
Refinement stepCycle: LAST / Resolution: 2.99→44.27 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms16237 0 108 48 16393
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.00716653
X-RAY DIFFRACTIONf_angle_d0.983522670
X-RAY DIFFRACTIONf_chiral_restr0.05092632
X-RAY DIFFRACTIONf_plane_restr0.01842953
X-RAY DIFFRACTIONf_dihedral_angle_d17.21166108
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
2.99-3.070.34721390.31222494X-RAY DIFFRACTION78.67
3.07-3.150.32091390.27752582X-RAY DIFFRACTION82.88
3.15-3.240.32751460.25472608X-RAY DIFFRACTION82.95
3.24-3.350.30491460.24292610X-RAY DIFFRACTION82.89
3.35-3.470.34641470.24052600X-RAY DIFFRACTION82.15
3.47-3.610.29941460.22572590X-RAY DIFFRACTION82.58
3.61-3.770.27691490.21852585X-RAY DIFFRACTION82.13
3.77-3.970.25731400.18262561X-RAY DIFFRACTION81.16
3.97-4.220.221460.17282558X-RAY DIFFRACTION81.03
4.22-4.540.20411400.15622564X-RAY DIFFRACTION80.29
4.55-50.23181390.15592535X-RAY DIFFRACTION79.47
5-5.720.26311380.17832542X-RAY DIFFRACTION78.87
5.72-7.210.26151320.19252533X-RAY DIFFRACTION77.13
7.21-44.270.16981430.1462474X-RAY DIFFRACTION73.33
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)
10.8856775858740.4647604537760.3216152681191.525143016050.1719093395311.081006320720.0557145197655-0.00915887924122-0.1599061118580.0657063477437-0.0772338360092-0.347288473925-0.0793614484250.1879110242070.03977254041770.2706431646310.012742886478-0.04406708906370.3322221520350.00974827905350.404934651113.4961711407-3.61477346061-33.8123642517
21.17784885109-0.02864755793630.2933527262741.20684760157-0.06371777776060.732015905127-0.0142752149647-0.233954863331-0.1979436238420.328669460581-0.0292185685351-0.28890611112-0.08424399125240.1263092896830.04584631522880.497568906751-0.0182356114569-0.1530576779150.4918028776310.04192855750180.41732210257514.9948976634-7.07904476529-14.0271626684
31.21263613530.274975688242-0.3965544409251.34297626359-0.1440979783920.703516325377-0.003497647861690.1915094477080.0158858101977-0.1979132471030.005243960321340.0617718148690.001983574746710.08995475856440.05463681414360.3479741342130.0183171235913-0.01441524102120.3528274102610.01441883687280.229591896295-13.70745224249.28507930444-57.3834658731
41.351001965920.4319353543980.2971303611170.8450179384690.3036634308160.268606055993-0.138138905406-0.435444462425-0.167979002019-0.0742640019205-0.07849815002570.4951834106520.1410028727960.02689354691740.06497998021730.3523978238260.01412899347520.02949387806480.361662562970.1042736338440.467501263586-36.77143674467.6433442252-41.6891543628
51.44638293856-0.149336435601-0.3979461395951.33590442317-0.52414051180.6311682622730.0913525018336-0.1076091904750.138701032152-0.08815569051170.02182126279570.113841570049-0.280426982836-0.21849220717-0.02654008756790.3517806545540.03374584730750.08242778424430.3648776059850.03805970038690.447165470074-36.890897623821.6788848587-33.9076041191
61.43793649597-0.35434633098-0.2546496164121.530585267240.1548942158370.82052019933-0.0822536138460.00407978728340.01119909909010.06234682126390.0847920973150.640809014587-0.269887450824-0.0691342897502-0.03641987631580.4039257653480.118723487850.06881273978190.352447321814-0.03611580366960.597748586968-46.709838397221.941871166-33.6918909308
71.789403218610.5117607505080.3992873686611.22557523616-0.1257620973931.58779603605-0.06287582908320.4183519290560.150403137165-0.05519655167710.1096925343050.631257272761-0.769746183957-0.0723403565355-0.03900948166950.4205777548930.0587460403783-0.004392813141150.3273956719780.0676604160180.564860152536-32.790106479736.5714289668-47.9678269577
81.163680754150.157199025549-0.1635135063030.700502933626-0.2441886897970.9311652473780.007467726286810.03818804725180.219573073287-0.1166985181410.04201115892810.0572241115624-0.2374960945490.0289073898633-0.05216148836460.4564106464890.06023732488640.02238606510850.3321398728360.05302727475140.411405836509-19.526345022433.5016889203-50.67116995
91.29976023086-0.251072686779-0.3219541608611.2955432433-0.003534113853971.628491816750.2747465101780.2291649311280.545790608321-0.1024069099080.177870985830.2210726904450.0884648838314-0.073875910761-0.09520351484050.538512808130.024797491959-0.03181835005420.3748345098130.0856937525050.620171146548-24.937967306743.2535417488-53.6378927068
101.558605122570.451847632005-0.09400811550840.56448972833-0.4148541441580.310007032405-0.025971857030.1977619540550.234716588680.258530935014-0.069062399916-0.374587177941-0.5373578698880.0879774040710.04878807693370.450069005959-0.0826844062358-0.04515636220620.475618987742-0.02903873055170.426371695626-0.25288125590633.4219040787-31.8958184412
111.1955182632-0.0436955118566-0.05412558923710.640544506204-0.586792388020.543295274292-0.0134549843942-0.06465944320610.02860699186160.0564214577942-0.0455821130665-0.191121289773-0.126954888532-0.00675725017370.01357089069730.391778330464-0.08464457475010.008928617371220.3327545842350.007232703495710.374092884922-1.4015807910723.0256160698-38.7884031432
121.117368721340.058765376502-0.1339854738490.8641554626030.03729342516870.5176929062370.101844276261-0.08222841557530.1956044032920.09657987806630.0618882305843-0.375184481739-0.0547046783310.3218641088-0.01219519133190.4898522341640.01074784560550.02561141532660.3774030166820.01510842375120.4085880818697.725063186821.9206677247-31.795719836
131.338144225210.2912672190390.02265404631310.9998397945270.2523457776770.8723667295030.1237639311890.4788202867440.1923359513840.0916031778894-0.138421231417-0.538667853516-0.1081527166740.6643439121930.1326368127580.383891193344-0.02667514782070.05172939290070.5971193150560.1103282366540.59334200693128.98784419117.2020821895-57.2736417198
141.2465364162-0.048702890060.02533028082030.516866963718-0.3101901081810.335541454461-0.02561872957670.341229065774-0.265043307118-0.2643074958450.0173553723702-0.1707770951670.1942660997690.400383412120.07341054237680.3722722990240.04738208890790.1382596990130.5979824172810.03570360431040.47369720753419.690206776511.8597000483-64.4631309005
152.739856685270.4923190475280.4359727817141.87524649701-1.149929224681.201262711810.3136205830440.371901076058-0.00177703229086-0.25613525194-0.335715834271-0.2446128885130.2404974961620.2876170418910.02456493676950.3489984557160.04678878310510.04800468618530.456594846939-0.02236335330070.55868823777319.77012389193.54007993295-56.9531929011
161.474601455480.243517018638-0.01733121557410.850069355668-0.4977663162561.268949529440.000634134031174-0.0105518158428-0.139380180372-0.324533440316-0.19717568793-0.1031591046910.1688313109710.7627972220.1630292534140.5248727162730.06316286721470.09966971709570.6158155077130.108961766740.83183663853832.165792426614.594211911-61.5719564294
172.345145663370.2981290791430.1413058243181.94239734169-0.6447122417961.62412024509-0.2319185824970.1895022901730.584790589167-0.5239317768570.0352779634324-0.314189693417-0.2931242916460.311333483090.1128318870550.42444544047-0.0986446452490.06594771552840.5900446227740.1029304361870.45842844983311.664664961633.025522118-69.6946388987
181.284926470380.1419106745280.06649508163760.936996233632-0.2518551626670.5765108263240.05856306505910.1209787691110.164740991648-0.23200382994-0.0625193264134-0.186600257643-0.03400339684170.2614284981650.0541902566150.422526773785-0.01968043818050.02219516706850.4885979458470.08320040384950.3939174097384.9518189648228.8039737181-61.6424740522
190.7101807602850.1177095715370.1359460970341.06415527457-0.465773070490.2792286957640.2560571313560.1991634887940.254069490851-0.247096381153-0.2958573063520.1306409095640.0190998725269-0.1479700298980.03750813354540.501888742631-0.0721339145513-0.0009593190903960.5664528273260.05410157372630.451405271597-5.9481263667434.6207670294-69.3355972087
201.381106079650.0277914276540.2739721910741.02147999935-0.654281287720.8994543673970.04544578358370.5491901714380.261722664215-0.652066547727-0.3197592738850.188790805207-0.1154295702640.1549832014320.063679966630.418538366927-0.06686559678130.04252985489330.5112462595150.09063473686640.3913060722876.8967117638833.0390341763-72.6504490974
211.329292261130.07223238398330.37795138541.417850211840.00963708509880.5982753146760.118874717423-0.119318096022-0.05992193240740.24235331714-0.03884684521870.0389213131595-0.08016216416490.03495090031850.03321832322040.416365052219-0.00693919048759-0.013325444760.3127515853870.03481385730140.24616181635-12.95826757580.247904670268-21.9637258852
221.178883903890.0159924650408-0.2751368689711.27472040777-0.06693545192630.3291938155940.04709031404120.03851721491330.02680126202460.00488825102547-0.02638082507680.292901021034-0.162802521736-0.247824515530.09203572748990.3670392852150.0686545032891-0.02318320049790.3191387415950.01469497973310.3307098586-34.5526213456-5.70095328877-38.6224406186
230.8905776917610.1858044983840.2875861136691.264477277340.1986696158510.9848737221080.216192803697-0.05178498743120.00538660408670.0104669687234-0.05357851357070.1998826638960.07068780134450.0864715866819-0.01872927534370.359415974357-0.000929351846263-0.09046658258270.3200709001140.06301324716650.462730699435-31.1282749226-22.0960094446-43.3277159297
241.10859111510.35110624453-0.4311988559471.21236297876-0.06018823374210.961184575172-0.05052992211890.184438650142-0.114391747766-0.14841117330.03122199628570.07600107428650.060101621546-0.172461439954-0.009219245055460.3658999220270.0181638754434-0.1078889741140.36676968882-0.03386783099740.414910867476-33.3451593042-17.5638781692-49.8072893767
252.113174559430.213450155801-0.2377225882061.48066037928-0.2544179897761.349242179930.00163658645687-0.344871711895-0.479047981699-0.115761047080.1401479016350.3567706996860.372517801116-0.327320233703-0.04640343245160.38715940197-0.0548817402384-0.1133467439240.3743974078990.04206704029540.415801272512-21.8569853331-31.0406760159-31.9504753962
260.7143907069510.2612623874090.08793908370391.087364147730.04357531783180.9190124022280.07353549497180.00372085577805-0.306425702890.146968140521-0.10070262543-0.04018674364450.3541399227670.202354163346-0.04467653437250.4020358625810.0076898351635-0.09510412077450.4767501147670.1031201466980.422004587888-9.94055810569-24.4994107561-28.7428542883
271.114313937790.1184255052870.2005428198631.075984076880.06329747464271.03838295130.1081750152540.0669017885499-0.5345336291830.373925857295-0.0462042549454-0.02520744968330.5110943136230.37803503781-0.09145090038480.4996272306980.0121243947547-0.03746282019240.4885682907650.05003866507890.574462424208-12.2907363745-35.4915405707-25.8655890751
Refinement TLS group

Refine-ID: X-RAY DIFFRACTION

IDRefine TLS-IDSelection detailsAuth asym-IDLabel asym-IDAuth seq-IDLabel seq-ID
11chain 'A' and (resid 13 through 292 )AA13 - 2921 - 280
22chain 'A' and (resid 293 through 557 )AA293 - 557281 - 537
33chain 'B' and (resid 13 through 176 )BD13 - 1761 - 164
44chain 'B' and (resid 177 through 223 )BD177 - 223165 - 211
55chain 'B' and (resid 224 through 321 )BD224 - 321212 - 309
66chain 'B' and (resid 322 through 362 )BD322 - 362310 - 350
77chain 'B' and (resid 363 through 415 )BD363 - 415351 - 399
88chain 'B' and (resid 416 through 503 )BD416 - 503400 - 487
99chain 'B' and (resid 504 through 557 )BD504 - 557488 - 541
1010chain 'C' and (resid 13 through 49 )CG13 - 491 - 37
1111chain 'C' and (resid 50 through 158 )CG50 - 15838 - 146
1212chain 'C' and (resid 159 through 196 )CG159 - 196147 - 184
1313chain 'C' and (resid 197 through 258 )CG197 - 258185 - 246
1414chain 'C' and (resid 259 through 292 )CG259 - 292247 - 280
1515chain 'C' and (resid 293 through 321 )CG293 - 321281 - 309
1616chain 'C' and (resid 322 through 361 )CG322 - 361310 - 349
1717chain 'C' and (resid 362 through 398 )CG362 - 398350 - 379
1818chain 'C' and (resid 399 through 491 )CG399 - 491380 - 472
1919chain 'C' and (resid 492 through 520 )CG492 - 520473 - 501
2020chain 'C' and (resid 521 through 557 )CG521 - 557502 - 538
2121chain 'D' and (resid 13 through 176 )DJ13 - 1761 - 164
2222chain 'D' and (resid 177 through 223 )DJ177 - 223165 - 211
2323chain 'D' and (resid 224 through 292 )DJ224 - 292212 - 280
2424chain 'D' and (resid 293 through 362 )DJ293 - 362281 - 350
2525chain 'D' and (resid 363 through 417 )DJ363 - 417351 - 400
2626chain 'D' and (resid 418 through 503 )DJ418 - 503401 - 486
2727chain 'D' and (resid 504 through 557 )DJ504 - 557487 - 540

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