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Structural model of a apo G-protein alpha subunit determined with NMR residual dipolar couplings and SAXS
Authors
Goricanec, D., Stehle, R., Grigoriu, S., Wagner, G., Hagn, F.
Assembly
Guanine nucleotide-binding protein G(i) subunit alpha-1
Entity
1. Guanine nucleotide-binding protein G(i) subunit alpha-1 (polymer, Thiol state: all free), 326 monomers, 37199.03 Da Detail

GASREVKLLL LGAGESGKST IVKQMKIIHE AGYSEEECKQ YKAVVYSNTI QSIIAIIRAM GRLKIDFGDS ARADDARQLF VLAGAAEEGF MTAELAGVIK RLWKDSGVQA CFNRSREYQL NDSAAYYLND LDRIAQPNYI PTQQDVLRTR VKTTGIVETH FTFKDLHFKM FDVGGQRSER KKWIHCFEGV AAIIFCVALS DYDLVLAEDE EMNRMHESMK LFDSICNNKW FTDTSIILFL NKKDLFEEKI KKSPLTICYQ EYAGSNTYEE AAAYIQCQFE DLNKRKDTKE IYTHFTCATD TKNVQFVFDA VTDVIIKNNL KDCGLF


Formula weight
37199.03 Da
Source organism
Homo sapiens
Exptl. method
solution NMR
Refine. method
simulated annealing
Data set
assigned_chemical_shifts
Chem. Shift Complete
Sequence coverage: 77.3 %, Completeness: 24.9 %, Completeness (bb): 52.7 % Detail

Polymer type: polypeptide(L)

Total1H15N
All24.9 % (586 of 2357)16.6 % (332 of 2003)71.8 % (254 of 354)
Backbone52.7 % (521 of 989)40.8 % (272 of 666)77.1 % (249 of 323)
Sidechain 4.7 % (64 of 1368) 4.4 % (59 of 1337)16.1 % (5 of 31)
Aromatic 8.3 % (15 of 180) 6.8 % (12 of 177)100.0 % (3 of 3)
Methyl 2.7 % (5 of 183) 2.7 % (5 of 183)

1. Guanine nucleotide-binding protein G(i) subunit alpha-1

GASREVKLLL LGAGESGKST IVKQMKIIHE AGYSEEECKQ YKAVVYSNTI QSIIAIIRAM GRLKIDFGDS ARADDARQLF VLAGAAEEGF MTAELAGVIK RLWKDSGVQA CFNRSREYQL NDSAAYYLND LDRIAQPNYI PTQQDVLRTR VKTTGIVETH FTFKDLHFKM FDVGGQRSER KKWIHCFEGV AAIIFCVALS DYDLVLAEDE EMNRMHESMK LFDSICNNKW FTDTSIILFL NKKDLFEEKI KKSPLTICYQ EYAGSNTYEE AAAYIQCQFE DLNKRKDTKE IYTHFTCATD TKNVQFVFDA VTDVIIKNNL KDCGLF

Sample #1

Solvent system 95% H2O/5% D2O, Pressure 1 atm, Temperature 303 K, pH 7.0, Details 400 uM [U-98% 2H; U-99% 13C; U-99% 15N] G protein alpha subunit subtype i1, GNAI1, 95% H2O/5% D2O


#NameIsotope labelingTypeConcentration
1G protein alpha subunit subtype i1, GNAI1[U-98% 2H; U-99% 13C; U-99% 15N]400 uM
2H2Onatural abundance95 %
3D2Onatural abundance5 %
4DTTnatural abundance5 mM
5sodium phosphatenatural abundance20 mM
6sodium chloridenatural abundance50 mM
7magnesium chloridenatural abundance5 mM
Sample #2

Solvent system 95% H2O/5% D2O, Pressure 1 atm, Temperature 303 K, pH 7.0, Details 250 uM [U-98% 15N; U-90% 2H] G protein alpha subunit subtype i1, GNAI1, 95% H2O/5% D2O


#NameIsotope labelingTypeConcentration
8G protein alpha subunit subtype i1, GNAI1[U-98% 15N; U-90% 2H]250 uM
9H2Onatural abundance95 %
10D2Onatural abundance5 %
11DTTnatural abundance5 mM
12sodium phosphatenatural abundance20 mM
13sodium chloridenatural abundance50 mM
14magnesium chloridenatural abundance5 mM

Protein Blocks Logo
Calculated from 10 models in PDB: 5JS7, Strand ID: A Detail


Release date
2016-06-23
Citation
Conformational dynamics of a G-protein α subunit is tightly regulated by nucleotide binding
Goricanec, D., Stehle, R., Egloff, P., Grigori, S., Plueckthun, A., Wagner, G., Hagn, F.
Proc. Natl. Acad. Sci. U. S. A. (2016), 113, E3629-E3638, PubMed 27298341 , DOI 10.1073/pnas.1604125113 ,
Related entities 1. Guanine nucleotide-binding protein G(i) subunit alpha-1, : 1 : 1 : 348 entities Detail
Interaction partners 1. Guanine nucleotide-binding protein G(i) subunit alpha-1, : 37 interactors Detail
Experiments performed 7 experiments Detail
NMR combined restraints 2 contents Detail
Keywords G-proteins, GPCR, NMR. SAXS, signaling protein