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Solution structure of the Sigma-anti-sigma factor complex RsgI1N-SigI1C from Clostridium thermocellum
Authors
Wei, Z., Feng, Y.
Assembly
Anti-sigma-I factor RsgI1, RNA polymerase sigma factor SigI1
Entity
1. Anti-sigma-I factor RsgI1, RNA polymerase sigma factor SigI1, entity 1 (polymer, Thiol state: not present), 53 monomers, 6161.098 Da Detail

SMNRLGIIYE IQGMKAVVLT SEGEFLIIRR RKDMKVGQQV SFENEDIYNV RGK


2. Anti-sigma-I factor RsgI1, RNA polymerase sigma factor SigI1, entity 2 (polymer, Thiol state: all free), 118 monomers, 14196.42 Da Detail

MEDIEAREDI EELKKKLQEF GITFLDLVLN VPKHRDSRQL CIRLAKMLAE DEQMYNALMK NKNIPRNELK KKAKVHGRTI GNNRKYIIAL CLIFRSNLNL SKRYLEYYTM LEHHHHHH


Total weight
20357.518 Da
Max. entity weight
14196.42 Da
Source organism
Acetivibrio thermocellus ATCC 27405
Exptl. method
solution NMR
Data set
assigned_chemical_shifts
Chem. Shift Complete
Sequence coverage: 97.1 %, Completeness: 94.6 %, Completeness (bb): 94.6 % Detail

Polymer type: polypeptide(L)

Total1H13C15N
All94.6 % (2031 of 2148)94.0 % (1062 of 1130)96.0 % (784 of 817)92.0 % (185 of 201)
Backbone94.6 % (967 of 1022)92.5 % (322 of 348)96.4 % (487 of 505)93.5 % (158 of 169)
Sidechain94.7 % (1221 of 1289)94.6 % (740 of 782)95.6 % (454 of 475)84.4 % (27 of 32)
Aromatic79.7 % (110 of 138)79.7 % (55 of 69)79.7 % (55 of 69)
Methyl100.0 % (190 of 190)100.0 % (95 of 95)100.0 % (95 of 95)

1. entity 1

SMNRLGIIYE IQGMKAVVLT SEGEFLIIRR RKDMKVGQQV SFENEDIYNV RGK

2. entity 2

MEDIEAREDI EELKKKLQEF GITFLDLVLN VPKHRDSRQL CIRLAKMLAE DEQMYNALMK NKNIPRNELK KKAKVHGRTI GNNRKYIIAL CLIFRSNLNL SKRYLEYYTM LEHHHHHH

Sample

Solvent system 90% H2O/10% D2O, Pressure 1 atm, Temperature 298 K, pH 6.5, Details 1 mM [U-13C; U-15N] RsgI1N, 1 mM [U-13C; U-15N] SigI1C, 20 mM Bis-Tris, 50 mM sodium chloride, 2 mM EDTA, 90% H2O/10% D2O


#NameIsotope labelingTypeConcentration
1RsgI1N[U-13C; U-15N]protein1 mM
2SigI1C[U-13C; U-15N]protein1 mM
3Bis-Trisnatural abundancebuffer20 mM
4EDTAnatural abundance2 mM
5sodium chloridenatural abundancesalt50 mM
6H2Onatural abundancesolvent90 %
7D2O[U-2H]solvent10 %

Release date
2019-05-12
Citation
Alternative σI/anti-σI factors represent a unique form of bacterial σ/anti-σ complex
Wei, Z., Chen, C., Liu, Y.J., Dong, S., Li, J., Qi, K., Liu, S., Ding, X., Ora, L.O., Munoz-Gutierrez, I., Li, Y., Yao, H., Lamed, R., Bayer, E.A., Cui, Q., Feng, Y.
Nucleic Acids Res. (2019), 47, 5988-5997, PubMed 31106374 , DOI 10.1093/nar/gkz355 ,
Related entities 1. Anti-sigma-I factor RsgI1, RNA polymerase sigma factor SigI1, entity 1, : 1 : 1 : 1 : 9 entities Detail
Related entities 2. Anti-sigma-I factor RsgI1, RNA polymerase sigma factor SigI1, entity 2, : 1 : 1 : 9 entities Detail
Interaction partners 1. Anti-sigma-I factor RsgI1, RNA polymerase sigma factor SigI1, entity 1, : 1 interactors Detail
Interaction partners 2. Anti-sigma-I factor RsgI1, RNA polymerase sigma factor SigI1, entity 2, : 1 interactors Detail
Experiments performed 16 experiments Detail
Chemical shift validation 4 contents Detail
Keywords TRANSCRIPTION, sigma factor