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- PDB-2f8j: Crystal structure of Histidinol-phosphate aminotransferase (EC 2.... -

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Basic information

Entry
Database: PDB / ID: 2f8j
TitleCrystal structure of Histidinol-phosphate aminotransferase (EC 2.6.1.9) (Imidazole acetol-phosphate transferase) (tm1040) from Thermotoga maritima at 2.40 A resolution
ComponentsHistidinol-phosphate aminotransferase
KeywordsTRANSFERASE / tm1040 / Histidinol-phosphate aminotransferase (EC 2.6.1.9) (Imidazole acetol-phosphate transferase / Structural Genomics / PSI / Protein Structure Initiative / Joint Center for Structural Genomics / JCSG
Function / homology
Function and homology information


histidinol-phosphate transaminase / histidinol-phosphate transaminase activity / L-histidine biosynthetic process / pyridoxal phosphate binding / protein homodimerization activity
Similarity search - Function
: / Histidinol-phosphate aminotransferase family / Aminotransferase, class-II, pyridoxal-phosphate binding site / Aminotransferases class-II pyridoxal-phosphate attachment site. / Aminotransferase, class I/classII / Aminotransferase class I and II / Aspartate Aminotransferase, domain 1 / Aspartate Aminotransferase, domain 1 / Aspartate Aminotransferase; domain 2 / Type I PLP-dependent aspartate aminotransferase-like (Major domain) ...: / Histidinol-phosphate aminotransferase family / Aminotransferase, class-II, pyridoxal-phosphate binding site / Aminotransferases class-II pyridoxal-phosphate attachment site. / Aminotransferase, class I/classII / Aminotransferase class I and II / Aspartate Aminotransferase, domain 1 / Aspartate Aminotransferase, domain 1 / Aspartate Aminotransferase; domain 2 / Type I PLP-dependent aspartate aminotransferase-like (Major domain) / Pyridoxal phosphate-dependent transferase, small domain / Pyridoxal phosphate-dependent transferase, major domain / Pyridoxal phosphate-dependent transferase / Alpha-Beta Complex / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
4'-DEOXY-4'-AMINOPYRIDOXAL-5'-PHOSPHATE / Histidinol-phosphate aminotransferase
Similarity search - Component
Biological speciesThermotoga maritima (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / molecular replacement / Resolution: 2.4 Å
AuthorsJoint Center for Structural Genomics (JCSG)
CitationJournal: To be published
Title: Crystal structure of Histidinol-phosphate aminotransferase (EC 2.6.1.9) (Imidazole acetol-phosphate transferase) (tm1040) from Thermotoga maritima at 2.40 A resolution
Authors: Joint Center for Structural Genomics (JCSG)
History
DepositionDec 2, 2005Deposition site: RCSB / Processing site: RCSB
Revision 1.0Feb 21, 2006Provider: repository / Type: Initial release
Revision 1.1May 1, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Advisory / Version format compliance
Revision 1.3Jan 25, 2023Group: Database references / Derived calculations / Category: database_2 / struct_ref_seq_dif / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4Sep 20, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model / struct_ncs_dom_lim
Item: _struct_ncs_dom_lim.beg_auth_comp_id / _struct_ncs_dom_lim.end_auth_comp_id
Remark 300BIOMOLECULE: 1, 2 THIS ENTRY CONTAINS THE CRYSTALLOGRAPHIC ASYMMETRIC UNIT WHICH CONSISTS OF 4 ...BIOMOLECULE: 1, 2 THIS ENTRY CONTAINS THE CRYSTALLOGRAPHIC ASYMMETRIC UNIT WHICH CONSISTS OF 4 CHAIN(S). SEE REMARK 350 FOR INFORMATION ON GENERATING THE BIOLOGICAL MOLECULE(S). QUATERNARY STRUCTURE FOR THIS ENTRY: DIMERIC

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Histidinol-phosphate aminotransferase
B: Histidinol-phosphate aminotransferase
C: Histidinol-phosphate aminotransferase
D: Histidinol-phosphate aminotransferase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)165,05021
Polymers163,2504
Non-polymers1,80017
Water6,107339
1
A: Histidinol-phosphate aminotransferase
B: Histidinol-phosphate aminotransferase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)82,61812
Polymers81,6252
Non-polymers99310
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area9020 Å2
ΔGint-19 kcal/mol
Surface area25190 Å2
MethodPISA
2
C: Histidinol-phosphate aminotransferase
D: Histidinol-phosphate aminotransferase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)82,4329
Polymers81,6252
Non-polymers8077
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area8270 Å2
ΔGint-28 kcal/mol
Surface area25120 Å2
MethodPISA
Unit cell
Length a, b, c (Å)145.156, 187.453, 54.316
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number18
Space group name H-MP21212
Noncrystallographic symmetry (NCS)NCS domain:
IDEns-IDDetails
11A
21B
31C
41D
51A
61B
71C
81D
91A
101B
111C
121D
131A
141B
151C
161D
171A
181B
191C
201D
211A
221B
231C
241D
251A
261B
271C
281D
291A
301B
311C
321D
331A
341B
351C
361D
371A
381B
391C
401D
411A
421B
431C
441D
451A
461B
471C
481D
491A
501B
511C
521D
531A
541B
551C
561D
571A
581B
591C
601D

NCS domain segments:

Ens-ID: 1

Dom-IDComponent-IDBeg auth comp-IDBeg label comp-IDEnd auth comp-IDEnd label comp-IDRefine codeAuth asym-IDLabel asym-IDAuth seq-IDLabel seq-ID
11METMETLYSLYS5AA1 - 2113 - 33
21ASNASNLYSLYS5BB2 - 2114 - 33
31METMETLYSLYS5CC1 - 2113 - 33
41ASNASNLYSLYS5DD2 - 2114 - 33
52THRTHRVALVAL2AA22 - 3834 - 50
62THRTHRVALVAL2BB22 - 3834 - 50
72THRTHRVALVAL2CC22 - 3834 - 50
82THRTHRVALVAL2DD22 - 3834 - 50
93ASPASPLEULEU6AA39 - 4551 - 57
103ASPASPLEULEU6BB39 - 4551 - 57
113ASPASPLEULEU6CC39 - 4551 - 57
123ASPASPLEULEU6DD39 - 4551 - 57
134ASNASNLEULEU4AA46 - 6958 - 81
144ASNASNLEULEU4BB46 - 6958 - 81
154ASNASNLEULEU4CC46 - 6958 - 81
164ASNASNLEULEU4DD46 - 6958 - 81
175ASPASPPHEPHE3AA70 - 7382 - 85
185ASPASPPHEPHE3BB70 - 7382 - 85
195ASPASPPHEPHE3CC70 - 7382 - 85
205ASPASPPHEPHE3DD70 - 7382 - 85
216LEULEUILEILE2AA74 - 11186 - 123
226LEULEUILEILE2BB74 - 11186 - 123
236LEULEUILEILE2CC74 - 11186 - 123
246LEULEUILEILE2DD74 - 11186 - 123
257PHEPHEGLUGLU3AA112 - 138124 - 150
267PHEPHEGLUGLU3BB112 - 138124 - 150
277PHEPHEGLUGLU3CC112 - 138124 - 150
287PHEPHEGLUGLU3DD112 - 138124 - 150
298GLUGLUPHEPHE2AA138 - 155150 - 167
308GLUGLUPHEPHE2BB138 - 155150 - 167
318GLUGLUPHEPHE2CC138 - 155150 - 167
328GLUGLUPHEPHE2DD138 - 155150 - 167
339GLUGLUGLYGLY4AA156 - 167168 - 179
349GLUGLUGLYGLY4BB156 - 167168 - 179
359GLUGLUGLYGLY4CC156 - 167168 - 179
369GLUGLUGLYGLY4DD156 - 167168 - 179
3710ALAALASERSER1AA168 - 183180 - 195
3810ALAALASERSER1BB168 - 183180 - 195
3910ALAALASERSER1CC168 - 183180 - 195
4010ALAALASERSER1DD168 - 183180 - 195
4111TYRTYRASNASN4AA184 - 193196 - 205
4211TYRTYRASNASN4BB184 - 193196 - 205
4311TYRTYRASNASN4CC184 - 193196 - 205
4411TYRTYRASNASN4DD184 - 193196 - 205
4512LEULEUGLNGLN1AA194 - 238206 - 250
4612LEULEUGLNGLN1BB194 - 238206 - 250
4712LEULEUGLNGLN1CC194 - 238206 - 250
4812LEULEUGLNGLN1DD194 - 238206 - 250
4913METMETLYSLYS2AA239 - 266251 - 278
5013METMETLYSLYS2BB239 - 266251 - 278
5113METMETLYSLYS2CC239 - 266251 - 278
5213METMETLYSLYS2DD239 - 266251 - 278
5314SERSERVALVAL1AA267 - 286279 - 298
5414SERSERVALVAL1BB267 - 286279 - 298
5514SERSERVALVAL1CC267 - 286279 - 298
5614SERSERVALVAL1DD267 - 286279 - 298
5715PHEPHEPHEPHE5AA287 - 334299 - 346
5815PHEPHEPHEPHE5BB287 - 334299 - 346
5915PHEPHEPHEPHE5CC287 - 334299 - 346
6015PHEPHEPHEPHE5DD287 - 334299 - 346

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Components

#1: Protein
Histidinol-phosphate aminotransferase / Imidazole acetol-phosphate transaminase


Mass: 40812.570 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Thermotoga maritima (bacteria) / Gene: hisC / Production host: Escherichia coli (E. coli)
References: UniProt: Q9X0D0, histidinol-phosphate transaminase
#2: Chemical
ChemComp-PMP / 4'-DEOXY-4'-AMINOPYRIDOXAL-5'-PHOSPHATE / PYRIDOXAMINE-5'-PHOSPHATE


Mass: 248.173 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C8H13N2O5P
#3: Chemical
ChemComp-EDO / 1,2-ETHANEDIOL / ETHYLENE GLYCOL


Mass: 62.068 Da / Num. of mol.: 13 / Source method: obtained synthetically / Formula: C2H6O2
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 339 / Source method: isolated from a natural source / Formula: H2O

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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: 2.4 Å3/Da / Density % sol: 48.32 %
Crystal growTemperature: 293 K / Method: vapor diffusion, sitting drop, nanodrop / pH: 6.5
Details: 0.2M MgCl2, 20.0% PEG-1000, 0.1M Cacodylate, pH 6.5, VAPOR DIFFUSION, SITTING DROP, NANODROP, temperature 293K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SSRL / Beamline: BL9-2 / Wavelength: 1.000001 / Wavelength: 1.000001 Å
DetectorType: ADSC QUANTUM 315 / Detector: CCD / Date: Feb 28, 2005 / Details: double crystal monochromator
RadiationMonochromator: double crystal monochromator / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.000001 Å / Relative weight: 1
ReflectionResolution: 2.4→29.8 Å / Num. obs: 54470 / % possible obs: 91.7 % / Redundancy: 2.7 % / Rmerge(I) obs: 0.079 / Χ2: 0.988 / Net I/σ(I): 9.3
Reflection shell

Diffraction-ID: 1

Resolution (Å)Redundancy (%)Rmerge(I) obsMean I/σ(I) obsNum. measured obsΧ2% possible all
2.4-2.442.60.5621.826531.04990.1
2.44-2.492.70.54227071.02892.6
2.49-2.532.70.45526921.04493.3
2.53-2.592.60.41628060.97294
2.59-2.642.70.36826910.96492.7
2.64-2.72.60.32427060.99293.1
2.7-2.772.70.26827151.04692.3
2.77-2.852.70.22427571.04293.8
2.85-2.932.70.18627350.94593.1
2.93-3.022.70.15627370.91492.6
3.02-3.132.70.1327151.05693.3
3.13-3.262.70.10727511.03692.8
3.26-3.412.70.08127120.92391.1
3.41-3.582.70.07327190.9492.3
3.58-3.812.70.06427080.97691.1
3.81-4.12.70.05726980.91290.8
4.1-4.522.60.05826990.98889.3
4.52-5.172.60.05927380.84790.5
5.17-6.512.70.05527151.0688.8
6.51-502.60.05528161.02286.7

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Phasing

PhasingMethod: molecular replacement

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Processing

Software
NameVersionClassificationNB
REFMAC5.2.0005refinement
SCALAdata scaling
PDB_EXTRACT1.601data extraction
DENZOdata reduction
SCALEPACKdata scaling
MOLREPphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: pdb entry 1uu0
Resolution: 2.4→29.6 Å / Cor.coef. Fo:Fc: 0.96 / Cor.coef. Fo:Fc free: 0.939 / SU B: 15.797 / SU ML: 0.187 / TLS residual ADP flag: LIKELY RESIDUAL / Cross valid method: THROUGHOUT / ESU R: 0.549 / ESU R Free: 0.275 / Stereochemistry target values: MAXIMUM LIKELIHOOD
Details: 1.HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. 2.THE BOUND COFACTOR ON ALL FOUR SUBUNITS WERE MODELED AS PYRIDOXAMINE PHOSPHATE. HOWEVER, THE ELECTRON DENSITIES AT THE ACTIVE SITE ARE ...Details: 1.HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. 2.THE BOUND COFACTOR ON ALL FOUR SUBUNITS WERE MODELED AS PYRIDOXAMINE PHOSPHATE. HOWEVER, THE ELECTRON DENSITIES AT THE ACTIVE SITE ARE DISORDERED AND INDICATE THE ACTIVE SITES TO BE OCCUPIED BY A MIXTURE OF PYRIDOXAL PHOSPHATE, PYRIDOXAMINE PHOSPHATE, AND A PHOSPHATE ANION.
RfactorNum. reflection% reflectionSelection details
Rfree0.238 2745 5 %RANDOM
Rwork0.182 ---
all0.185 ---
obs0.18469 51626 91.54 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 53.956 Å2
Baniso -1Baniso -2Baniso -3
1-2.09 Å20 Å20 Å2
2---1.39 Å20 Å2
3----0.7 Å2
Refinement stepCycle: LAST / Resolution: 2.4→29.6 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms10520 0 116 339 10975
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0110.02210893
X-RAY DIFFRACTIONr_bond_other_d0.0020.029953
X-RAY DIFFRACTIONr_angle_refined_deg1.2281.96814729
X-RAY DIFFRACTIONr_angle_other_deg0.798322845
X-RAY DIFFRACTIONr_dihedral_angle_1_deg5.90251340
X-RAY DIFFRACTIONr_dihedral_angle_2_deg31.40322.888509
X-RAY DIFFRACTIONr_dihedral_angle_3_deg14.307151756
X-RAY DIFFRACTIONr_dihedral_angle_4_deg19.7091588
X-RAY DIFFRACTIONr_chiral_restr0.0680.21608
X-RAY DIFFRACTIONr_gen_planes_refined0.0040.0212199
X-RAY DIFFRACTIONr_gen_planes_other0.0020.022453
X-RAY DIFFRACTIONr_nbd_refined0.190.22117
X-RAY DIFFRACTIONr_nbd_other0.1770.29840
X-RAY DIFFRACTIONr_nbtor_refined0.180.25417
X-RAY DIFFRACTIONr_nbtor_other0.0830.26364
X-RAY DIFFRACTIONr_xyhbond_nbd_refined0.1520.2399
X-RAY DIFFRACTIONr_xyhbond_nbd_other0.0560.21
X-RAY DIFFRACTIONr_symmetry_vdw_refined0.140.226
X-RAY DIFFRACTIONr_symmetry_vdw_other0.2570.278
X-RAY DIFFRACTIONr_symmetry_hbond_refined0.1540.25
X-RAY DIFFRACTIONr_mcbond_it1.17836843
X-RAY DIFFRACTIONr_mcbond_other0.30232682
X-RAY DIFFRACTIONr_mcangle_it1.896510756
X-RAY DIFFRACTIONr_scbond_it3.73384563
X-RAY DIFFRACTIONr_scangle_it5.549113971
Refine LS restraints NCS

Ens-ID: 1 / Refine-ID: X-RAY DIFFRACTION

Dom-IDAuth asym-IDNumberTypeRms dev position (Å)Weight position
1A1933TIGHT POSITIONAL0.030.05
2B1933TIGHT POSITIONAL0.040.05
3C1933TIGHT POSITIONAL0.040.05
4D1933TIGHT POSITIONAL0.020.05
1A1943MEDIUM POSITIONAL0.360.5
2B1943MEDIUM POSITIONAL0.360.5
3C1943MEDIUM POSITIONAL0.470.5
4D1943MEDIUM POSITIONAL0.350.5
1A794LOOSE POSITIONAL0.75
2B794LOOSE POSITIONAL0.75
3C794LOOSE POSITIONAL0.835
4D794LOOSE POSITIONAL0.725
1A1933TIGHT THERMAL0.090.5
2B1933TIGHT THERMAL0.10.5
3C1933TIGHT THERMAL0.090.5
4D1933TIGHT THERMAL0.070.5
1A1943MEDIUM THERMAL0.722
2B1943MEDIUM THERMAL0.742
3C1943MEDIUM THERMAL0.712
4D1943MEDIUM THERMAL0.532
1A794LOOSE THERMAL2.5410
2B794LOOSE THERMAL2.1510
3C794LOOSE THERMAL2.5910
4D794LOOSE THERMAL2.0410
LS refinement shellResolution: 2.395→2.457 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.262 211 -
Rwork0.224 3707 -
obs--90.09 %
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)
10.9225-0.18590.2741.1497-0.22650.96470.0101-0.01330.05490.0774-0.0166-0.2942-0.09770.11430.0064-0.1501-0.0329-0.0206-0.14860.0034-0.1312-27.892914.23096.3596
21.2964-0.37510.26260.9684-0.04951.72240.10050.03580.0241-0.1150.00290.0444-0.1095-0.1158-0.1034-0.14980.00050.0075-0.14850.0288-0.2129-54.46839.915-12.0258
31.50970.2440.63991.75750.01920.9688-0.0090.1141-0.0995-0.04770.00060.07240.04630.0410.0084-0.1387-0.02050.0252-0.1619-0.0147-0.1689-23.867259.3627-12.2363
42.0996-0.82130.0842.45830.10460.9322-0.0852-0.1843-0.31640.3464-0.0241.09050.081-0.34140.1092-0.0352-0.0310.17530.0152-0.02750.4009-55.447462.3648-6.4216
Refinement TLS group

Refine-ID: X-RAY DIFFRACTION / Selection: all

IDRefine TLS-IDAuth asym-IDLabel asym-IDAuth seq-IDLabel seq-ID
11AA0 - 33412 - 346
22BB2 - 33414 - 346
33CC1 - 33413 - 346
44DD4 - 33416 - 346

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