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Solution structure of GDP-bound form of the GTP/GDP binding domain of translation initiation factor IF2
Authors
Tischenko, E.V., Folkers, G., Boelens, R., Gualerzi, C.O.
Assembly
g2 complexed with GDP
Entity
1. IF2G2-GDP (polymer, Thiol state: all free), 178 monomers, 19500.20 Da Detail

GSHMVERPPV VTIMGHVDHG KTTLLDAIRH SKVTEQEAGG ITQHIGAYQV TVNDKKITFL DTPGHEAFTT MRARGAQVTD IVILVVAADD GVMPQTVEAI NHAKAANVPI IVAINKMDKP EANPDRVMQE LMEYNLVPEE WGGDTIFCKL SAKTKEGLDH LLEMILLVSE MEELKANP


2. GDP (non-polymer), 443.201 Da
Total weight
19943.4 Da
Max. entity weight
19500.2 Da
Source organism
Geobacillus stearothermophilus
Exptl. method
NMR
Refine. method
molecular dynamics
Data set
assigned_chemical_shifts
Chem. Shift Complete
Sequence coverage: 89.9 %, Completeness: 77.8 %, Completeness (bb): 82.2 % Detail

Polymer type: polypeptide(L)

Total1H13C15N
All77.8 % (1568 of 2015)74.3 % (771 of 1038)81.5 % (647 of 794)82.0 % (150 of 183)
Backbone82.2 % (863 of 1050)82.2 % (295 of 359)81.8 % (427 of 522)83.4 % (141 of 169)
Sidechain74.9 % (847 of 1131)70.1 % (476 of 679)82.6 % (362 of 438)64.3 % (9 of 14)
Aromatic62.2 % (56 of 90)62.2 % (28 of 45)61.4 % (27 of 44)100.0 % (1 of 1)
Methyl85.6 % (202 of 236)84.7 % (100 of 118)86.4 % (102 of 118)

1. IF2G2-GDP

GSHMVERPPV VTIMGHVDHG KTTLLDAIRH SKVTEQEAGG ITQHIGAYQV TVNDKKITFL DTPGHEAFTT MRARGAQVTD IVILVVAADD GVMPQTVEAI NHAKAANVPI IVAINKMDKP EANPDRVMQE LMEYNLVPEE WGGDTIFCKL SAKTKEGLDH LLEMILLVSE MEELKANP

Sample

Temperature 315 (±0.2) K, pH 6.5 (±0.1)


#NameIsotope labelingTypeConcentration
1IF2G2[U-13C; U-15N]protein0.6 (±0.2) mM
2potassium phosphatebuffer20 (±2.0) mM
3potassiumm chloridesalt150 (±5.0) mM
4DTTreducing agent1 (±0.1) mM
5GDPadditive1 (±0.1) mM
6MgCl2salt5 (±0.2) mM

LACS Plot; CA
Referencing offset: 0.02 ppm, Outliers: 1 Detail
LACS Plot; CB
Referencing offset: 0.02 ppm, Outliers: 1 Detail
LACS Plot; HA
Referencing offset: -0.11 ppm, Outliers: 2 Detail
LACS Plot; CO
Referencing offset: 0.18 ppm, Outliers: 3 Detail
Protein Blocks Logo
Calculated from 18 models in PDB: 2LKD, Strand ID: A Detail


Release date
2006-11-06
Citation
The nucleotide-binding site of bacterial translation initiation factor 2 (IF2) as a metabolic sensor
Milon, P., Tischenko, E.V., Tomsic, J., Caserta, E., Folkers, G., La Teana, A., Rodnina, M.V., Pon, C.L., Boelens, R., Gualerzi, C.O.
Proc. Natl. Acad. Sci. U. S. A. (2006), 103, 13962-13967, PubMed 16968770 , DOI 10.1073/pnas.0606384103 ,
Related entities 1. IF2G2-GDP, : 1 : 1 : 199 entities Detail
Interaction partners 1. IF2G2-GDP, : 4 interactors Detail
Experiments performed 11 experiments Detail
nullKeywords GTPase, initiation factor, NMR, translation, initiation factor GTPase