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- PDB-9j1u: Structural basis of the bifunctionality of M. salinexigens ZYF650... -

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Basic information

Entry
Database: PDB / ID: 9j1u
TitleStructural basis of the bifunctionality of M. salinexigens ZYF650T glucosylglycerol phosphorylase in glucosylglycerol catabolism
ComponentsSucrose phosphorylase
KeywordsSTRUCTURAL PROTEIN / Glucosylglycerol / phosphorylase-GH13_18 / structure-double displacement mechanism
Function / homology
Function and homology information


sucrose phosphorylase / sucrose phosphorylase activity / carbohydrate metabolic process
Similarity search - Function
Sucrose phosphorylase / Oligo-1,6-glucosidase, domain 2 / Alpha amylase, catalytic domain / Glycosyl hydrolase, family 13, catalytic domain / Alpha-amylase domain / Glycoside hydrolase superfamily
Similarity search - Domain/homology
1-O-phosphono-alpha-D-glucopyranose / alpha-D-glucopyranose / Sucrose phosphorylase
Similarity search - Component
Biological speciesMarinobacter salinexigens (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.72 Å
AuthorsLu, D. / Ma, H.L.
Funding support China, 1items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)32271358 China
CitationJournal: J Biol Chem / Year: 2025
Title: Structural basis of the bifunctionality of Marinobacter salinexigens ZYF650 glucosylglycerol phosphorylase in glucosylglycerol catabolism.
Authors: Di Lu / Keke Zhang / Chen Cheng / Danni Wu / Lei Yin / Quan Luo / Meiyun Shi / Honglei Ma / Xuefeng Lu /
Abstract: 2-O-α-Glucosylglycerol (GG) is a natural heteroside synthesized by many cyanobacteria and a few heterotrophic bacteria under salt stress conditions. Bacteria produce GG in response to stimuli and ...2-O-α-Glucosylglycerol (GG) is a natural heteroside synthesized by many cyanobacteria and a few heterotrophic bacteria under salt stress conditions. Bacteria produce GG in response to stimuli and degrade it once the stimulus diminishes. Heterotrophic bacteria utilize GG phosphorylase (GGP), a member of the GH13_18 family, via a two-step process consisting of phosphorolysis and hydrolysis for GG catabolism. However, the precise mechanism by which GGP degrades GG remains elusive. We determined the 3D structure of a recently identified GGP (MsGGP) of the deep-sea bacterium Marinobacter salinexigens ZYF650, in complex with glucose and glycerol, α-d-glucose-1-phosphate (αGlc1-P), and orthophosphate (inorganic phosphate) at resolutions of 2.5, 2.7, and 2.7 Å, respectively. Notably, the first αGlc1-P complex structure in the GH13_18 family, the complex of MsGGP and αGlc1-P, validates that GGP catalyzes GG decomposition through consecutive phosphorolysis and hydrolysis. In addition, the structure reveals the mechanism of high stereoselectivity on αGlc1-P. Glu231 and Asp190 were identified as the catalytic residues. Interestingly, these structures closely resemble each other, indicating minimal conformational changes upon binding end-product glucose and glycerol, or the intermediate αGlc1-P. The structures also indicate that the substrates may follow a specific trajectory and a precise order toward the active center in close proximity and in a geometrically favorable orientation for catalysis in a double displacement mechanism.
History
DepositionAug 5, 2024Deposition site: PDBJ / Processing site: PDBC
Revision 1.0Sep 10, 2025Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
F: Sucrose phosphorylase
B: Sucrose phosphorylase
C: Sucrose phosphorylase
D: Sucrose phosphorylase
E: Sucrose phosphorylase
A: Sucrose phosphorylase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)331,10921
Polymers329,4236
Non-polymers1,68615
Water2,414134
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area18170 Å2
ΔGint-69 kcal/mol
Surface area97220 Å2
MethodPISA
Unit cell
Length a, b, c (Å)111.830, 178.500, 180.240
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

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Protein , 1 types, 6 molecules FBCDEA

#1: Protein
Sucrose phosphorylase / Glucosylglycerol phosphorylase


Mass: 54903.852 Da / Num. of mol.: 6
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Marinobacter salinexigens (bacteria) / Gene: gtfA, FWJ25_14990 / Production host: Escherichia coli (E. coli) / References: UniProt: A0A5B0VBK8, sucrose phosphorylase

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Sugars , 2 types, 4 molecules

#2: Sugar ChemComp-GLC / alpha-D-glucopyranose / alpha-D-glucose / D-glucose / glucose


Type: D-saccharide, alpha linking / Mass: 180.156 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C6H12O6
IdentifierTypeProgram
DGlcpaCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
a-D-glucopyranoseCOMMON NAMEGMML 1.0
a-D-GlcpIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcSNFG CARBOHYDRATE SYMBOLGMML 1.0
#5: Sugar ChemComp-G1P / 1-O-phosphono-alpha-D-glucopyranose / ALPHA-D-GLUCOSE-1-PHOSPHATE / 1-O-phosphono-alpha-D-glucose / 1-O-phosphono-D-glucose / 1-O-phosphono-glucose


Type: D-saccharide / Mass: 260.136 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C6H13O9P / Feature type: SUBJECT OF INVESTIGATION
IdentifierTypeProgram
a-D-Glcp1PO3IUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0

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Non-polymers , 3 types, 145 molecules

#3: Chemical
ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL


Mass: 92.094 Da / Num. of mol.: 8 / Source method: obtained synthetically / Formula: C3H8O3
#4: Chemical ChemComp-NA / SODIUM ION


Mass: 22.990 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: Na
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 134 / Source method: isolated from a natural source / Formula: H2O

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Details

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: 2.73 Å3/Da / Density % sol: 54.95 %
Crystal growTemperature: 289 K / Method: vapor diffusion
Details: 0.1 M Sodium chloride, 0.1 M BIS-TRIS propane pH 9.0, 25% Polyethylene glycol 1,500

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: SSRF / Beamline: BL10U2 / Wavelength: 0.987 Å
DetectorType: DECTRIS EIGER X 16M / Detector: PIXEL / Date: Jun 3, 2024
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.987 Å / Relative weight: 1
ReflectionResolution: 2.72→31.11 Å / Num. obs: 96759 / % possible obs: 99.3 % / Redundancy: 5.7 % / Rmerge(I) obs: 0.074 / Rpim(I) all: 0.051 / Rrim(I) all: 0.096 / Net I/σ(I): 14.7
Reflection shellResolution: 2.72→2.79 Å / Rmerge(I) obs: 0.747 / Num. unique obs: 6676 / Rpim(I) all: 0.626 / Rrim(I) all: 0.98

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Processing

Software
NameVersionClassification
PHENIX(1.17.1_3660: ???)refinement
HKL-30007.21data reduction
HKL-30007.21data scaling
PHASER2.7.0phasing
PDB_EXTRACT3.27data extraction
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 7XDQ
Resolution: 2.72→21.04 Å / SU ML: 0.43 / Cross valid method: THROUGHOUT / σ(F): 1.34 / Phase error: 30.61 / Stereochemistry target values: ML
RfactorNum. reflection% reflectionSelection details
Rfree0.2539 4609 4.78 %RANDOM
Rwork0.2144 ---
obs0.2163 96434 99.27 %-
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Refinement stepCycle: LAST / Resolution: 2.72→21.04 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms23130 0 107 134 23371
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.00723803
X-RAY DIFFRACTIONf_angle_d1.02732343
X-RAY DIFFRACTIONf_dihedral_angle_d17.7333192
X-RAY DIFFRACTIONf_chiral_restr0.0553530
X-RAY DIFFRACTIONf_plane_restr0.0074218
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
2.72-2.750.44891490.3972811X-RAY DIFFRACTION92
2.75-2.780.42141210.37972889X-RAY DIFFRACTION95
2.78-2.820.41921500.37432993X-RAY DIFFRACTION98
2.82-2.850.42921380.35493032X-RAY DIFFRACTION100
2.85-2.890.39141810.34183018X-RAY DIFFRACTION100
2.89-2.930.34611640.33093028X-RAY DIFFRACTION100
2.93-2.970.31261470.32193055X-RAY DIFFRACTION100
2.97-3.020.32891490.31913099X-RAY DIFFRACTION100
3.02-3.060.3321620.29832971X-RAY DIFFRACTION100
3.06-3.110.3021910.29913048X-RAY DIFFRACTION100
3.11-3.170.38451480.30363057X-RAY DIFFRACTION100
3.17-3.220.36081230.27993090X-RAY DIFFRACTION100
3.22-3.290.31771400.28223076X-RAY DIFFRACTION100
3.29-3.350.28681570.25013040X-RAY DIFFRACTION100
3.35-3.420.26771620.24253068X-RAY DIFFRACTION100
3.42-3.50.3011710.24343047X-RAY DIFFRACTION100
3.5-3.590.24261440.23313079X-RAY DIFFRACTION100
3.59-3.690.31631580.23823051X-RAY DIFFRACTION100
3.69-3.80.26711530.22473096X-RAY DIFFRACTION100
3.8-3.920.21811290.20633093X-RAY DIFFRACTION100
3.92-4.060.2381570.20223077X-RAY DIFFRACTION100
4.06-4.220.21621220.18433101X-RAY DIFFRACTION100
4.22-4.410.20651600.16513095X-RAY DIFFRACTION100
4.41-4.640.22471450.16883109X-RAY DIFFRACTION100
4.64-4.920.2481600.16583092X-RAY DIFFRACTION100
4.92-5.30.18891670.15743112X-RAY DIFFRACTION100
5.3-5.820.22321560.17623119X-RAY DIFFRACTION100
5.82-6.640.22541690.17133136X-RAY DIFFRACTION100
6.64-8.280.20881750.17943151X-RAY DIFFRACTION100
8.28-21.040.17611610.16123192X-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)
11.76560.4367-0.65970.8323-0.6232.5152-0.0215-0.3461-0.34440.1112-0.0059-0.08120.52740.48040.02420.83790.1841-0.02370.4204-0.00020.5281-21.2252-2.2383-15.4109
21.6240.9557-0.94842.3419-0.48292.0090.0387-0.153-0.11350.2489-0.0325-0.34190.31370.6881-0.0660.55470.1547-0.03530.6083-0.01360.4768-8.22294.9676-24.57
31.27790.65420.17930.366-0.13511.58520.0030.276-0.02790.2033-0.1465-0.01970.58830.1630.10050.43070.08-0.01360.3710.00980.5044-26.48773.5239-36.287
41.57090.4543-0.17921.7216-0.97272.1720.1011-0.16920.13820.1835-0.0236-0.2361-0.08740.194-0.10170.373-0.0052-0.03740.3587-0.03810.5262-33.747214.6208-24.2987
50.1508-0.1958-0.37990.50141.15515.8346-0.21010.36450.17150.26110.02240.49021.4005-0.669-0.02720.378-0.16830.00390.61730.01430.7055-50.15581.6391-35.4536
62.2220.7336-0.03510.35280.29682.1482-0.15290.3171-0.2538-0.15550.17810.06360.4960.1754-0.02410.81390.08010.03210.334-0.02780.547-26.2358-1.398-77.7723
71.6213-0.8519-0.87422.17050.98622.81370.01290.2663-0.1948-0.1944-0.17830.15560.2868-0.70530.06080.62-0.1378-0.05310.5379-0.04540.4955-51.45725.5385-71.4931
82.0536-0.28-0.30890.0958-0.09221.58780.1788-0.1576-0.1733-0.1378-0.1690.12840.6292-0.0140.0320.58590.00930.01480.3072-0.010.4516-32.79144.1766-57.1642
92.12940.1195-0.59061.65190.30672.62310.0722-0.15510.0735-0.3082-0.0295-0.0990.33960.5384-0.03350.38770.09350.01640.4568-0.01390.4704-16.218810.8347-63.246
100.7-0.2724-0.02292.0351-0.57131.14910.04470.22430.0001-0.5082-0.0594-0.654-0.22260.78620.0560.8535-0.50320.18551.4284-0.14950.77414.778542.8517-65.4519
111.16911.1251-0.49282.2026-0.70252.2093-0.27220.3172-0.7283-0.6210.20990.01780.13420.16650.26730.4232-0.0010.02831.3674-0.17631.00385.695319.5564-55.936
120.7931-0.4597-0.3260.6108-0.16211.2307-0.1138-0.0211-0.4298-0.50590.3335-0.6185-0.0431.00950.14850.628-0.3150.17451.5807-0.15830.832514.303533.512-54.5773
132.09460.2736-0.75541.5231-0.29030.3182-0.0364-0.2177-0.29690.03390.1198-0.1843-0.40090.8174-0.09350.6382-0.41380.04191.1154-0.09860.68813.460947.5636-46.8832
142.67370.5265-0.35621.9659-0.62460.2107-0.16830.1683-0.3091-0.19940.0658-0.0272-0.4930.4933-0.0640.8661-0.44310.02230.7528-0.0070.6614-8.503846.5844-52.6324
152.35790.967-0.0683.1466-0.40381.00760.05490.1207-0.3704-0.18390.09570.3525-0.71370.477-0.09840.9659-0.33110.05840.7531-0.07910.708-10.440246.6752-58.99
161.50180.5642-0.25261.7244-0.31160.081-0.02670.20720.1328-0.18250.09840.0959-0.58930.5256-0.05151.2013-0.62310.12030.9082-0.0720.619-2.659558.0064-61.7995
171.86060.6940.07842.1668-0.36380.084-0.15620.24760.75590.019-0.0420.2918-0.61440.4125-0.01761.6289-0.56630.11230.87350.03660.8337-6.000873.14-52.275
180.3110.1828-0.23150.49930.60981.7830.0168-0.2373-0.1344-0.181-0.33260.454-0.3809-0.86880.23440.50890.29720.02451.129-0.03240.8357-70.290241.606-23.7802
191.5456-0.9567-0.98511.15860.54573.773-0.1366-0.1355-0.32730.2262-0.03770.26640.1157-0.21960.08990.5420.03130.05320.71080.01520.74-61.502519.1207-34.9496
200.70830.1422-0.23351.79230.39051.3695-0.1412-0.0324-0.0372-0.20560.00430.3016-0.2676-0.7030.08010.54580.2822-0.01240.7755-0.00890.5407-64.301640.7567-38.9449
213.30630.4628-1.04292.51921.12883.590.0585-0.1256-0.2103-0.1473-0.0040.0182-0.2111-0.1210.09460.53130.13120.0120.4727-0.07120.5856-47.180946.1419-36.7066
221.27120.329-0.73260.99470.70571.68060.0825-0.2657-0.087-0.3017-0.003-0.1752-0.5335-0.142-0.10960.68260.25170.00020.50670.04860.566-49.784350.1775-24.4687
232.8792-0.04350.21542.88650.42630.5371-0.0579-0.11410.576-0.40460.0895-0.1327-1.1797-0.4587-0.10411.55970.34350.01370.61680.0020.6938-50.974170.0582-38.6429
240.7003-0.46980.27131.8355-0.14541.6438-0.0491-0.26770.30780.5616-0.0026-0.0464-0.79450.4840.05381.0062-0.59720.08320.9538-0.14580.7256-4.196861.2741-8.2868
251.10080.06380.5310.96731.68043.06570.1205-0.17450.42840.0868-0.12120.2036-0.7953-0.35610.1511.2972-0.25610.13820.767-0.13890.8465-24.949969.9622-22.2803
260.22410.02170.52560.580.48431.911-0.00640.03280.1763-0.14660.0232-0.1314-1.64580.4938-0.07940.9169-0.73930.14640.9384-0.08830.8221-5.175459.8743-24.5424
270.61630.2606-0.00361.2891-0.06021.20990.04870.0342-0.03330.0826-0.0463-0.0715-0.18370.5035-0.02330.4428-0.27780.02440.9609-0.04120.6906-4.235138.9184-19.5476
280.5868-0.15040.13551.5656-0.64160.76240.07240.21140.276-0.6504-0.1197-0.0229-0.9133-0.24420.05261.62430.43080.09090.69390.05470.6824-49.16963.2587-70.6725
291.55380.26890.24333.94430.86093.82670.23450.2048-0.0209-0.913-0.1832-0.3993-0.62760.1898-0.05860.85580.16750.12760.44830.03880.5024-42.852844.5229-66.1818
301.1310.5633-0.02872.594-0.03182.27650.06680.2868-0.1202-0.6578-0.18910.1475-0.3236-0.66030.0410.86540.3532-0.0460.6631-0.06060.5532-57.859937.9907-72.8333
Refinement TLS group
IDRefine-IDRefine TLS-IDSelection details
1X-RAY DIFFRACTION1chain 'F' and (resid 2 through 117 )
2X-RAY DIFFRACTION2chain 'F' and (resid 118 through 208 )
3X-RAY DIFFRACTION3chain 'F' and (resid 209 through 276 )
4X-RAY DIFFRACTION4chain 'F' and (resid 277 through 408 )
5X-RAY DIFFRACTION5chain 'F' and (resid 409 through 480 )
6X-RAY DIFFRACTION6chain 'B' and (resid 2 through 83 )
7X-RAY DIFFRACTION7chain 'B' and (resid 84 through 182 )
8X-RAY DIFFRACTION8chain 'B' and (resid 183 through 276 )
9X-RAY DIFFRACTION9chain 'B' and (resid 277 through 480 )
10X-RAY DIFFRACTION10chain 'C' and (resid 2 through 117 )
11X-RAY DIFFRACTION11chain 'C' and (resid 118 through 146 )
12X-RAY DIFFRACTION12chain 'C' and (resid 147 through 208 )
13X-RAY DIFFRACTION13chain 'C' and (resid 209 through 276 )
14X-RAY DIFFRACTION14chain 'C' and (resid 277 through 315 )
15X-RAY DIFFRACTION15chain 'C' and (resid 316 through 361 )
16X-RAY DIFFRACTION16chain 'C' and (resid 362 through 447 )
17X-RAY DIFFRACTION17chain 'C' and (resid 448 through 480 )
18X-RAY DIFFRACTION18chain 'D' and (resid 2 through 117 )
19X-RAY DIFFRACTION19chain 'D' and (resid 118 through 146 )
20X-RAY DIFFRACTION20chain 'D' and (resid 147 through 276 )
21X-RAY DIFFRACTION21chain 'D' and (resid 277 through 315 )
22X-RAY DIFFRACTION22chain 'D' and (resid 316 through 423 )
23X-RAY DIFFRACTION23chain 'D' and (resid 424 through 480 )
24X-RAY DIFFRACTION24chain 'E' and (resid 2 through 117 )
25X-RAY DIFFRACTION25chain 'E' and (resid 118 through 146 )
26X-RAY DIFFRACTION26chain 'E' and (resid 147 through 276 )
27X-RAY DIFFRACTION27chain 'E' and (resid 277 through 480 )
28X-RAY DIFFRACTION28chain 'A' and (resid 2 through 276 )
29X-RAY DIFFRACTION29chain 'A' and (resid 277 through 361 )
30X-RAY DIFFRACTION30chain 'A' and (resid 362 through 480 )

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