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- PDB-2ik8: Crystal structure of the heterodimeric complex of human RGS16 and... -

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Basic information

Entry
Database: PDB / ID: 2ik8
TitleCrystal structure of the heterodimeric complex of human RGS16 and activated Gi alpha 1
Components
  • Guanine nucleotide-binding protein G(i), alpha-1 subunit
  • Regulator of G-protein signaling 16
KeywordsSIGNALING PROTEIN / G protein signalling / RGS / heterotrimeric G protein / signalling complex / Structural Genomics / Structural Genomics Consortium / SGC
Function / homology
Function and homology information


regulation of G protein-coupled receptor signaling pathway / Adenylate cyclase inhibitory pathway / positive regulation of protein localization to cell cortex / regulation of cAMP-mediated signaling / D2 dopamine receptor binding / G protein-coupled serotonin receptor binding / negative regulation of signal transduction / regulation of mitotic spindle organization / cellular response to forskolin / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway ...regulation of G protein-coupled receptor signaling pathway / Adenylate cyclase inhibitory pathway / positive regulation of protein localization to cell cortex / regulation of cAMP-mediated signaling / D2 dopamine receptor binding / G protein-coupled serotonin receptor binding / negative regulation of signal transduction / regulation of mitotic spindle organization / cellular response to forskolin / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / visual perception / GTPase activator activity / Regulation of insulin secretion / G protein-coupled receptor binding / G-protein beta/gamma-subunit complex binding / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / ADP signalling through P2Y purinoceptor 12 / response to peptide hormone / Adrenaline,noradrenaline inhibits insulin secretion / positive regulation of GTPase activity / G alpha (z) signalling events / ADORA2B mediated anti-inflammatory cytokines production / GPER1 signaling / GDP binding / heterotrimeric G-protein complex / cell cortex / midbody / G alpha (i) signalling events / G alpha (s) signalling events / G alpha (q) signalling events / Extra-nuclear estrogen signaling / calmodulin binding / cell cycle / G protein-coupled receptor signaling pathway / lysosomal membrane / cell division / GTPase activity / centrosome / nucleolus / GTP binding / magnesium ion binding / extracellular exosome / nucleoplasm / membrane / plasma membrane / cytoplasm
Similarity search - Function
Regulator of G-protein Signalling 4; domain 1 - #10 / Regulator of G-protein Signalling 4; domain 1 / RGS, subdomain 1/3 / Regulator of G-protein Signalling 4, domain 2 / Regulator of G-protein Signalling 4; domain 2 / GI Alpha 1, domain 2-like / GI Alpha 1, domain 2-like / Regulator of G protein signaling domain / RGS, subdomain 2 / RGS domain ...Regulator of G-protein Signalling 4; domain 1 - #10 / Regulator of G-protein Signalling 4; domain 1 / RGS, subdomain 1/3 / Regulator of G-protein Signalling 4, domain 2 / Regulator of G-protein Signalling 4; domain 2 / GI Alpha 1, domain 2-like / GI Alpha 1, domain 2-like / Regulator of G protein signaling domain / RGS, subdomain 2 / RGS domain / RGS domain profile. / Regulator of G protein signalling domain / RGS domain superfamily / G-protein alpha subunit, group I / G-alpha domain profile. / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G protein alpha subunit / P-loop containing nucleotide triphosphate hydrolases / P-loop containing nucleoside triphosphate hydrolase / Rossmann fold / Orthogonal Bundle / 3-Layer(aba) Sandwich / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
TETRAFLUOROALUMINATE ION / GUANOSINE-5'-DIPHOSPHATE / Regulator of G-protein signaling 16 / Guanine nucleotide-binding protein G(i) subunit alpha-1
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.71 Å
AuthorsSoundararajan, M. / Turnbull, A.P. / Papagrigoriou, E. / Debreczeni, J. / Gorrec, F. / von Delft, F. / Weigelt, J. / Edwards, A. / Arrowsmith, C. / Sundstrom, M. ...Soundararajan, M. / Turnbull, A.P. / Papagrigoriou, E. / Debreczeni, J. / Gorrec, F. / von Delft, F. / Weigelt, J. / Edwards, A. / Arrowsmith, C. / Sundstrom, M. / Doyle, D.A. / Structural Genomics Consortium (SGC)
CitationJournal: Proc.Natl.Acad.Sci.Usa / Year: 2008
Title: Structural diversity in the RGS domain and its interaction with heterotrimeric G protein alpha-subunits.
Authors: Soundararajan, M. / Willard, F.S. / Kimple, A.J. / Turnbull, A.P. / Ball, L.J. / Schoch, G.A. / Gileadi, C. / Fedorov, O.Y. / Dowler, E.F. / Higman, V.A. / Hutsell, S.Q. / Sundstrom, M. / ...Authors: Soundararajan, M. / Willard, F.S. / Kimple, A.J. / Turnbull, A.P. / Ball, L.J. / Schoch, G.A. / Gileadi, C. / Fedorov, O.Y. / Dowler, E.F. / Higman, V.A. / Hutsell, S.Q. / Sundstrom, M. / Doyle, D.A. / Siderovski, D.P.
History
DepositionOct 2, 2006Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 21, 2006Provider: repository / Type: Initial release
Revision 1.1May 1, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Advisory / Version format compliance
Revision 1.3Aug 30, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / pdbx_struct_conn_angle / struct_conn / struct_ncs_dom_lim / 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 / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr2_auth_comp_id / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr2_label_atom_id / _pdbx_struct_conn_angle.ptnr2_label_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id / _struct_ncs_dom_lim.beg_auth_comp_id / _struct_ncs_dom_lim.end_auth_comp_id / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Guanine nucleotide-binding protein G(i), alpha-1 subunit
B: Regulator of G-protein signaling 16
C: Guanine nucleotide-binding protein G(i), alpha-1 subunit
D: Regulator of G-protein signaling 16
hetero molecules


Theoretical massNumber of molelcules
Total (without water)107,95018
Polymers106,0404
Non-polymers1,90914
Water64936
1
A: Guanine nucleotide-binding protein G(i), alpha-1 subunit
B: Regulator of G-protein signaling 16
hetero molecules


Theoretical massNumber of molelcules
Total (without water)54,07110
Polymers53,0202
Non-polymers1,0518
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
2
C: Guanine nucleotide-binding protein G(i), alpha-1 subunit
D: Regulator of G-protein signaling 16
hetero molecules


Theoretical massNumber of molelcules
Total (without water)53,8798
Polymers53,0202
Non-polymers8596
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)82.656, 104.312, 124.048
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121
Noncrystallographic symmetry (NCS)NCS domain:
IDEns-IDDetails
11A
21C
31A
41C
12B
22D

NCS domain segments:

Refine code: 5

Dom-IDComponent-IDEns-IDBeg auth comp-IDBeg label comp-IDEnd auth comp-IDEnd label comp-IDAuth asym-IDLabel asym-IDAuth seq-IDLabel seq-ID
111ARGARGALAALAAA32 - 1112 - 81
211GLUGLUALAALACC33 - 1113 - 81
321METMETLEULEUAA119 - 34889 - 318
421METMETLEULEUCC119 - 34889 - 318
112SERSERALAALABB65 - 18415 - 134
212SERSERALAALADD65 - 18415 - 134

NCS ensembles :
ID
1
2

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Components

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Protein , 2 types, 4 molecules ACBD

#1: Protein Guanine nucleotide-binding protein G(i), alpha-1 subunit / Adenylate cyclase-inhibiting G alpha protein


Mass: 37102.297 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNAI1 / Plasmid: pNIC28-Bsa4 / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3)R3 / References: UniProt: P63096
#2: Protein Regulator of G-protein signaling 16 / RGS16 / Retinally abundant regulator of G-protein signaling / RGS-R / A28-RGS14P


Mass: 15917.886 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: RGS16, RGSR / Plasmid: pNIC28-Bsa4 / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3)R3 / References: UniProt: O15492

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Non-polymers , 5 types, 50 molecules

#3: Chemical ChemComp-ALF / TETRAFLUOROALUMINATE ION


Mass: 102.975 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: AlF4
#4: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Mg
#5: Chemical
ChemComp-SO4 / SULFATE ION / Sulfate


Mass: 96.063 Da / Num. of mol.: 8 / Source method: obtained synthetically / Formula: SO4
#6: Chemical ChemComp-GDP / GUANOSINE-5'-DIPHOSPHATE / Guanosine diphosphate


Type: RNA linking / Mass: 443.201 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C10H15N5O11P2 / Comment: GDP, energy-carrying molecule*YM
#7: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 36 / 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: 2.52 Å3/Da / Density % sol: 51.21 %
Crystal growTemperature: 293 K / Method: vapor diffusion, sitting drop / pH: 5.5
Details: 0.2M (NH4)2SO4, 0.1M Bis-Tris, pH 5.5, 25% PEG3350 , VAPOR DIFFUSION, SITTING DROP, temperature 293K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SLS / Beamline: X10SA / Wavelength: 0.9198 Å
DetectorType: MARMOSAIC 225 mm CCD / Detector: CCD / Date: Mar 24, 2006
RadiationMonochromator: Si (111) / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9198 Å / Relative weight: 1
ReflectionResolution: 2.7→50 Å / Num. all: 29438 / Num. obs: 27900 / % possible obs: 99.3 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0
Reflection shellResolution: 2.7→2.8 Å / % possible all: 99.2

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Processing

Software
NameVersionClassification
REFMAC5.2.0019refinement
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ID = 2GTP

2gtp


Resolution: 2.71→49.6 Å / Cor.coef. Fo:Fc: 0.928 / Cor.coef. Fo:Fc free: 0.895 / SU B: 31.847 / SU ML: 0.317 / TLS residual ADP flag: LIKELY RESIDUAL / Cross valid method: THROUGHOUT / σ(F): 0 / σ(I): 0 / ESU R: 2.095 / ESU R Free: 0.398 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.29106 1491 5.1 %RANDOM
Rwork0.2325 ---
all0.23544 27900 --
obs0.23544 27900 98.73 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK
Displacement parametersBiso mean: 52.189 Å2
Baniso -1Baniso -2Baniso -3
1-5.15 Å20 Å20 Å2
2---4.39 Å20 Å2
3----0.76 Å2
Refinement stepCycle: LAST / Resolution: 2.71→49.6 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6670 0 108 36 6814
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0080.0226891
X-RAY DIFFRACTIONr_bond_other_d0.0010.024437
X-RAY DIFFRACTIONr_angle_refined_deg1.061.9569355
X-RAY DIFFRACTIONr_angle_other_deg0.82310811
X-RAY DIFFRACTIONr_dihedral_angle_1_deg5.5295863
X-RAY DIFFRACTIONr_dihedral_angle_2_deg35.13824.328305
X-RAY DIFFRACTIONr_dihedral_angle_3_deg14.991151108
X-RAY DIFFRACTIONr_dihedral_angle_4_deg15.3151534
X-RAY DIFFRACTIONr_chiral_restr0.0540.21069
X-RAY DIFFRACTIONr_gen_planes_refined0.0030.027690
X-RAY DIFFRACTIONr_gen_planes_other0.0010.021444
X-RAY DIFFRACTIONr_nbd_refined0.2140.21657
X-RAY DIFFRACTIONr_nbd_other0.1740.24621
X-RAY DIFFRACTIONr_nbtor_refined0.1830.23469
X-RAY DIFFRACTIONr_nbtor_other0.0850.23477
X-RAY DIFFRACTIONr_xyhbond_nbd_refined0.1440.2202
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined0.1840.29
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined0.0740.215
X-RAY DIFFRACTIONr_symmetry_vdw_other0.2080.249
X-RAY DIFFRACTIONr_symmetry_hbond_refined0.2160.22
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it0.2791.54435
X-RAY DIFFRACTIONr_mcbond_other0.0561.51751
X-RAY DIFFRACTIONr_mcangle_it0.48526903
X-RAY DIFFRACTIONr_scbond_it0.76832811
X-RAY DIFFRACTIONr_scangle_it1.214.52452
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
Refine LS restraints NCS

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

Ens-IDAuth asym-IDNumberTypeRms dev position (Å)Weight position
1A1836medium positional0.260.5
2B714medium positional0.240.5
1A2041loose positional0.535
2B734loose positional0.415
1A1836medium thermal0.292
2B714medium thermal0.232
1A2041loose thermal0.7410
2B734loose thermal0.510
LS refinement shellResolution: 2.71→2.781 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.378 97 -
Rwork0.285 1863 -
obs--91.42 %
Refinement TLS params.

Method: refined / Refine-ID: X-RAY DIFFRACTION

IDL11 (°2)L12 (°2)L13 (°2)L22 (°2)L23 (°2)L33 (°2)S11 (Å °)S12 (Å °)S13 (Å °)S21 (Å °)S22 (Å °)S23 (Å °)S31 (Å °)S32 (Å °)S33 (Å °)T11 (Å2)T12 (Å2)T13 (Å2)T22 (Å2)T23 (Å2)T33 (Å2)Origin x (Å)Origin y (Å)Origin z (Å)
11.7866-0.77430.1893.2676-0.22641.1721-0.0429-0.00360.2462-0.13390.0572-0.1065-0.03590.0165-0.0143-0.2517-0.0417-0.0313-0.2011-0.0203-0.2627-12.140626.3156-26.8262
22.57291.39010.21145.4555-1.49466.75550.0152-0.08250.04080.8051-0.0738-0.456-0.14640.07910.05860.04480.0375-0.1299-0.1846-0.0462-0.136-3.488430.8065-3.823
32.1505-0.92970.45172.6445-0.81572.7201-0.2153-0.08480.1420.26340.0133-0.3869-0.09930.12630.202-0.14070.0248-0.0609-0.2631-0.0114-0.2364-37.39161.7632-4.1897
45.29110.11412.01313.050.38966.43040.02920.56360.4446-0.194-0.2228-0.2599-0.6270.42250.1936-0.14630.03380.0891-0.07050.21080.0029-30.389268.7111-27.6885
Refinement TLS group
IDRefine-IDRefine TLS-IDAuth asym-IDLabel asym-IDAuth seq-IDLabel seq-ID
1X-RAY DIFFRACTION1AA32 - 1112 - 81
2X-RAY DIFFRACTION1AA119 - 34889 - 318
3X-RAY DIFFRACTION2BB65 - 18415 - 134
4X-RAY DIFFRACTION3CC33 - 1113 - 81
5X-RAY DIFFRACTION3CC119 - 34889 - 318
6X-RAY DIFFRACTION4DD55 - 1845 - 134

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