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- PDB-9qiz: Crystal Structure of S-Adenosyl-L-Homocysteine Hydrolase from P. ... -

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Basic information

Entry
Database: PDB / ID: 9qiz
TitleCrystal Structure of S-Adenosyl-L-Homocysteine Hydrolase from P. aeruginosa: F324A Mutant Complexed with Adenosine and Rubidium Ions Replacing Native Potassium
ComponentsAdenosylhomocysteinase
KeywordsHYDROLASE / Protein dynamics / metal binding site disruption / anomalous data / ion coordination / SAHase / AHCY
Function / homology
Function and homology information


L-homocysteine biosynthetic process / adenosylhomocysteinase / adenosylhomocysteinase activity / L-methionine cycle / one-carbon metabolic process / cytosol
Similarity search - Function
Adenosylhomocysteinase-like / S-adenosyl-L-homocysteine hydrolase, conserved site / Adenosylhomocysteinase-like superfamily / S-adenosyl-L-homocysteine hydrolase, NAD binding domain / S-adenosyl-L-homocysteine hydrolase / S-adenosyl-L-homocysteine hydrolase signature 1. / S-adenosyl-L-homocysteine hydrolase signature 2. / S-adenosyl-L-homocysteine hydrolase / S-adenosyl-L-homocysteine hydrolase, NAD binding domain / S-adenosyl-L-homocysteine hydrolase, NAD binding domain / NAD(P)-binding domain superfamily
Similarity search - Domain/homology
ADENOSINE / NICOTINAMIDE-ADENINE-DINUCLEOTIDE / PHOSPHATE ION / RUBIDIUM ION / Adenosylhomocysteinase
Similarity search - Component
Biological speciesPseudomonas aeruginosa PAO1 (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.06 Å
AuthorsMalecki, P.H. / Wozniak, K. / Stepniewska, M. / Brzezinski, K.
Funding support Poland, 1items
OrganizationGrant numberCountry
Polish National Science CentreSONATA BIS 2018/30/E/NZ1/00729 Poland
CitationJournal: To Be Published
Title: Crystal structure of the S-adenosyl-L-homocysteine hydrolase from P. aeruginosa, a Q65N mutant probed with rubidium to prove disruption of a potassium binding site.
Authors: Malecki, P.H. / Wozniak, K. / Stepniewska, M. / Brzezinski, K.
History
DepositionMar 18, 2025Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jul 8, 2026Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Adenosylhomocysteinase
B: Adenosylhomocysteinase
C: Adenosylhomocysteinase
D: Adenosylhomocysteinase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)211,38520
Polymers206,9404
Non-polymers4,44416
Water20,8791159
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area30600 Å2
ΔGint-187 kcal/mol
Surface area56510 Å2
Unit cell
Length a, b, c (Å)74.550, 132.549, 99.397
Angle α, β, γ (deg.)90.000, 102.056, 90.000
Int Tables number4
Space group name H-MP1211
Space group name HallP2yb
Symmetry operation#1: x,y,z
#2: -x,y+1/2,-z

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Components

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Protein , 1 types, 4 molecules ABCD

#1: Protein
Adenosylhomocysteinase / S-adenosyl-L-homocysteine hydrolase / AdoHcyase


Mass: 51735.031 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Pseudomonas aeruginosa PAO1 (bacteria) / Gene: ahcY, sahH, PA0432 / Production host: Escherichia coli (E. coli) / Strain (production host): BL21 CodonPlus RILP / References: UniProt: Q9I685, adenosylhomocysteinase

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Non-polymers , 5 types, 1175 molecules

#2: Chemical
ChemComp-NAD / NICOTINAMIDE-ADENINE-DINUCLEOTIDE


Mass: 663.425 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C21H27N7O14P2 / Comment: NAD*YM
#3: Chemical
ChemComp-ADN / ADENOSINE


Mass: 267.241 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C10H13N5O4
#4: Chemical
ChemComp-PO4 / PHOSPHATE ION


Mass: 94.971 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: PO4
#5: Chemical
ChemComp-RB / RUBIDIUM ION


Mass: 85.468 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Rb
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 1159 / Source method: isolated from a natural source / Formula: H2O

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Details

Has ligand of interestN
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: 2.32 Å3/Da / Density % sol: 47 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 7.5
Details: 50 mM KH2PO4, 20% (w/v) PEG8000, 20% (v/v) glycerol

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: BESSY / Beamline: 14.2 / Wavelength: 0.81301 Å
DetectorType: DECTRIS PILATUS3 2M / Detector: PIXEL / Date: Dec 11, 2021
RadiationMonochromator: double crystal / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.81301 Å / Relative weight: 1
ReflectionResolution: 2.06→48.6 Å / Num. obs: 218880 / % possible obs: 94.5 % / Redundancy: 2.15 % / Biso Wilson estimate: 27.64 Å2 / CC1/2: 0.995 / Rmerge(I) obs: 0.076 / Rrim(I) all: 0.107 / Net I/σ(I): 5.92
Reflection shell
Resolution (Å)Rmerge(I) obsNum. unique obsCC1/2Rrim(I) allDiffraction-ID
2.06-2.180.41174430.6710.5811
2.18-2.330.29674930.8120.4191
2.33-2.520.24172050.8390.3411
2.52-2.760.16168410.9270.2271
2.76-3.080.0857310.9830.1141
3.08-3.550.05455270.9930.0761
3.55-4.350.03444180.9960.0491
4.35-6.120.03133750.9970.0431
6.12-48.60.02318480.9990.0331

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Processing

Software
NameVersionClassificationNB
PHENIX1.21_5207refinement
XDSdata scaling
XDSdata reduction
REFMACphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 2.06→48.6 Å / SU ML: 0.2669 / Cross valid method: FREE R-VALUE / σ(F): 0.92 / Phase error: 29.8804
Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
RfactorNum. reflection% reflection
Rfree0.2288 1968 0.9 %
Rwork0.1932 216668 -
obs0.1935 218636 94.46 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.1 Å / Solvent model: FLAT BULK SOLVENT MODEL
Displacement parametersBiso mean: 40.19 Å2
Refinement stepCycle: LAST / Resolution: 2.06→48.6 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms14203 0 276 1159 15638
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.002514897
X-RAY DIFFRACTIONf_angle_d0.535720222
X-RAY DIFFRACTIONf_chiral_restr0.04342280
X-RAY DIFFRACTIONf_plane_restr0.00342590
X-RAY DIFFRACTIONf_dihedral_angle_d13.91625750
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
2.06-2.110.39371130.342712503X-RAY DIFFRACTION76.12
2.11-2.160.34661440.312115987X-RAY DIFFRACTION97.97
2.16-2.230.36961420.293515913X-RAY DIFFRACTION97.37
2.23-2.30.27381430.267215945X-RAY DIFFRACTION96.89
2.3-2.380.29861410.257415659X-RAY DIFFRACTION95.75
2.38-2.480.26661460.231416140X-RAY DIFFRACTION98.23
2.48-2.590.24261470.222816026X-RAY DIFFRACTION97.83
2.59-2.730.25331480.212516049X-RAY DIFFRACTION98.11
2.73-2.90.23051440.208615953X-RAY DIFFRACTION97.37
2.9-3.120.25291390.197915406X-RAY DIFFRACTION94.05
3.12-3.440.23251440.176715710X-RAY DIFFRACTION95.81
3.44-3.930.21761420.148615359X-RAY DIFFRACTION93.61
3.93-4.950.15241340.132114733X-RAY DIFFRACTION90.03
4.95-48.60.16641410.154615285X-RAY DIFFRACTION93.33
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)
12.068816100970.625125020620.6006673045911.84583062390.8315497256541.19830492330.08091925315830.0661300372401-0.365029693686-0.08213095607320.0427128584809-0.165261874370.2967482346040.0968209166361-0.1254831683450.7828469414170.00632716994545-0.05984980499390.312847613618-0.05934226380920.3143491740921.5368038484-2.1160621928713.8393973522
22.55357676602-0.4287737775850.8120431136210.2596247561750.2074969207990.7256828584180.0940905032094-0.436837887733-0.2536614754480.1293750231470.0754474045589-0.1115061154950.105723255626-0.0151741967902-0.1901699518530.911882074832-0.0339122068391-0.1219766754820.3683142182010.02661373391040.31612465656911.57025856183.5276932213327.1840427668
30.5603802022420.2598833629660.06975982978340.6640318976890.3055676763121.637124848540.005769466838620.0503271259644-0.150464167297-0.0544776903167-0.008410130286150.03639913086750.19545749424-0.0737499528499-0.006437917301930.655614106382-0.0186724180888-0.1443827024240.2334382250130.002667033303670.279421320268-8.253670904950.18804647846224.230000715
41.39012119955-0.34845059606-0.2488594143612.758049550441.76144865341.13984827682-0.02171306964-0.121004748374-0.09524556603880.3054143595620.264748629307-0.3868799540460.2525052193340.272466150521-0.2306973249590.609475927156-0.00647861914044-0.1379673393780.360736461173-0.03387682665440.29153172232124.34412739514.880300846230.4710968154
50.88487119449-0.4584504081250.3940000140110.5757920691770.04776580575791.240479183620.04828481979670.171533445475-0.11680062447-0.309416542714-0.1118876082740.01453040068540.03568938434640.0551607687826-0.0173109361060.8078412025830.0216457344741-0.1820755849760.363050249987-0.06717524262420.233626309328-19.1068738429.64319146965-9.66883067173
61.81919178512-0.4182860867791.028946179570.2914622883110.03556936062131.14316165439-0.1855832549120.08091292341970.157282026731-0.0111820178664-0.03657239381050.0697636605899-0.340794859091-0.0223495371430.2479361781780.6970436523580.00250945433004-0.1374117059260.296253529925-0.0281422201850.265479217437-16.073079876524.2234069955-0.0726305993897
70.423541264271-0.304702569597-0.09031023389250.9301529475730.5911503270661.02234312988-0.01511230251270.1420883492010.0718233488527-0.1757974846640.0198182133635-0.268652364274-0.1599643338510.0792347896254-0.00849663930870.834089063533-0.0197886695111-0.1015374464830.3288465061090.02123328967030.204094665941.8249254206430.70025438524.65998186096
82.11444822130.7358022963510.4802813333271.093970769150.2220851695880.159177555366-0.0001777885645760.243854267359-0.133350862432-0.3098687645780.0302414084684-0.175174025355-0.004658686257410.111042308922-0.02061206395530.764827996724-0.0146069476387-0.03693604316960.338587195814-0.006678367575950.2296685730648.2431108267519.2858313326-2.71113522862
90.05734679497760.2782495736850.08754146495890.2522590323270.06924107157920.7380964601360.0406234686590.06836127474190.000633398415932-0.160807708065-0.08249503120280.185100240631-0.122420628187-0.1707665223930.04558446816660.6835065106130.0240596997794-0.1681431171710.336725043582-0.03765745543970.285851667847-32.200987915822.07402670896.1893647466
100.902348281516-0.2421256295530.1535361391740.851716751611-0.02712150973871.14483788153-0.05659090225840.07789440215770.0774854975115-0.143585607271-0.03067405158890.160063730019-0.140956989514-0.2118400021590.08640674098670.6483396440650.0116491921741-0.1613418160190.299113947825-0.03471458279990.278175358171-26.01497186452.690929032929.0047781041
110.430608185253-0.0504765130265-0.1436219208560.651187990760.2457087032890.711875250171-0.01862453239140.02182385460810.0182673518361-0.108164772156-0.04973898033370.101892316807-0.0407210703408-0.1738918753260.05850700571740.612709750713-0.00751753474353-0.1473707477980.293461899883-0.01663073962720.228154959801-23.882661180633.074961789327.237762925
121.626456945180.3018811636880.6799995806680.652101938794-0.03727348206720.920456956558-0.0574672376998-0.1569167183710.1245884910850.4060619097410.17877885099-0.0395806314291-0.0791953405816-0.143754681541-0.1096870114260.6610500823750.0602116162138-0.08694082483850.3784778702040.0006060867461530.208754188992-12.003515600434.451912851860.3415989688
131.40199965724-0.0847499780351.046970732050.5272344971550.3650177591531.60975796794-0.0556735827216-0.316746652934-0.07254995833910.1415335647250.07331401488610.1643542094210.187692525121-0.287471242782-0.01035659326270.7124443787250.0578418786119-0.09891754077570.3933902374734.95860220578E-60.199755419961-3.427093544319.892137837861.3246630411
140.737271098642-0.4978235368710.2809848006060.521004149675-0.07387633845130.945137214716-0.132894856836-0.19183724330.1424391809760.1918777121240.11212135419-0.119539754445-0.05640582881430.09573393640370.0195030457090.7076952786850.0222462769765-0.1770297960480.364208233656-0.03884057718940.2675537402764.4588118235532.822889420662.6911883875
150.845931768453-0.8102547618820.7579143165751.02180412159-0.3479308785011.149358850230.01198174442070.1225918212970.0358725168351-0.00537920183712-0.0602317792117-0.05634710155530.09561255539640.2324757781020.03448799422610.612513692699-0.0328018895761-0.1058473968910.327629372180.009366514887470.2277081596287.8138141221326.388491821646.6571027243
161.01262430798-0.44080513663-0.4466361711390.4314340031290.236343800210.888626400797-0.0600961459130.08154631038570.068666876258-0.05371348249090.0389383796327-0.0259773001918-0.007481335970680.03899688883280.02299244363170.669057816114-0.0365760892529-0.1323346489010.270791976448-0.00787755901050.2399520139097.905007778131.727215519927.9049328945
171.16653142467-0.70108348193-0.5236704542361.10706452208-0.9211382533852.52516988104-0.161170407228-0.009578823449440.23533575838-0.03247720849280.0620996603854-0.208438780563-0.2137455863170.01858214407290.09990051456560.684612102886-0.0598853601994-0.1462983318450.24647645764-0.02155213629340.31650122915512.498156751341.133945911529.8906093193
181.25146760025-0.397433974222-0.5985835120290.86084354970.08463767820041.009410240020.00343545169736-0.08443529677630.1798188693040.09788172762960.0699942703751-0.224445111807-0.2745157637350.193367820135-0.0772449466880.626841145549-0.057747478767-0.1257626802940.265575258186-0.03126529343750.2713985264058.6593134500947.784517108337.1992475008
191.423962521110.11336949516-0.4171719674152.5592333096-1.166454144572.44363309339-0.0385294310186-0.030522717210.2588519335280.1464420905530.0104811814717-0.212229306159-0.5759389042410.004493569641710.03516112094330.546297936342-0.0115426068957-0.1400913543920.254623620944-0.009639906685010.2490983590551.8442711286449.209975114538.7756316758
200.962385823730.5514963412950.5601882930370.3123166381970.5063231210321.423031702920.136672817533-0.0228346620582-0.2832013684070.1705822391510.0546985313002-0.1224761412580.2190995639350.214919227612-0.2019563317650.7051495052140.0536021221481-0.128128728410.315647732086-0.01733009884590.2594826520229.3367005578616.344183059959.8731746124
211.17178224195-0.06371787121520.1452532447580.692489972197-0.3248954896210.9052290987750.0874123134032-0.211604147364-0.1762476626530.072657200756-0.013590947049-0.05264513169390.2103548407710.0185942888211-0.05671593426060.666880723534-0.0109808044547-0.1202280821530.2929983052610.04252742012720.2358875853530.4977748771083.7750145446843.1368325172
Refinement TLS group

Refine-ID: X-RAY DIFFRACTION

IDRefine TLS-IDSelection detailsAuth asym-IDLabel asym-IDAuth seq-IDLabel seq-ID
11chain 'A' and (resid 9 through 165 )AA9 - 1651 - 157
22chain 'A' and (resid 166 through 215 )AA166 - 215158 - 207
33chain 'A' and (resid 216 through 383 )AA216 - 383208 - 375
44chain 'A' and (resid 384 through 469 )AA384 - 469376 - 461
55chain 'B' and (resid 9 through 165 )BD9 - 1651 - 157
66chain 'B' and (resid 166 through 215 )BD166 - 215158 - 207
77chain 'B' and (resid 216 through 343 )BD216 - 343208 - 335
88chain 'B' and (resid 344 through 383 )BD344 - 383336 - 375
99chain 'B' and (resid 384 through 469 )BD384 - 469376 - 461
1010chain 'C' and (resid 6 through 215 )CG6 - 2151 - 210
1111chain 'C' and (resid 216 through 469 )CG216 - 469211 - 464
1212chain 'D' and (resid 9 through 34 )DJ9 - 341 - 26
1313chain 'D' and (resid 35 through 63 )DJ35 - 6327 - 55
1414chain 'D' and (resid 64 through 165 )DJ64 - 16556 - 157
1515chain 'D' and (resid 166 through 215 )DJ166 - 215158 - 207
1616chain 'D' and (resid 216 through 279 )DJ216 - 279208 - 271
1717chain 'D' and (resid 280 through 305 )DJ280 - 305272 - 297
1818chain 'D' and (resid 306 through 343 )DJ306 - 343298 - 335
1919chain 'D' and (resid 344 through 383 )DJ344 - 383336 - 375
2020chain 'D' and (resid 384 through 424 )DJ384 - 424376 - 416
2121chain 'D' and (resid 425 through 469 )DJ425 - 469417 - 461

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