Transcription initiation complex structures elucidate DNA opening (CC)
ELECTRON MICROSCOPY
Sample
YEAST POL II TRANSCRIPTION INITIATION COMPLEX (CLOSED DNA)
Specimen Preparation
Sample Aggregation State
PARTICLE
Vitrification Instrument
FEI VITROBOT MARK IV
Cryogen Name
ETHANE
Sample Vitrification Details
LIQUID ETHANE
3D Reconstruction
Reconstruction Method
SINGLE PARTICLE
Number of Particles
5690
Reported Resolution (Å)
8.8
Resolution Method
Other Details
THE MODEL FOR THE CLOSED COMPLEX WAS DERIVED FROM THE OPEN COMPLEX MODEL (5FYW). THREE RIGID-BODY GROUPS (1. POL II, TFIIA, TFIIB, TBP, TFIIE E-RIBBON ...
THE MODEL FOR THE CLOSED COMPLEX WAS DERIVED FROM THE OPEN COMPLEX MODEL (5FYW). THREE RIGID-BODY GROUPS (1. POL II, TFIIA, TFIIB, TBP, TFIIE E-RIBBON AND TFIIF DIMERIZATION DOMAIN, 2. TFIIE DOMAINS TFA1 AND TFA2 WH, 3.TFIIE TFA2 WH1 AND TFIIF TFG2 WH) WERE INDIVIDUALLY FITTED INTO THE CLOSED COMPLEX EM DENSITY BY AN AUTOMATED CORRELATION SEARCH IN SITUS. TO MODEL CLOSED PROMOTER DNA, UPSTREAM DNA WAS EXTENDED WITH CANONICAL DUPLEX B-FORM DNA IN COOT AND RIGID-BODY FITTED IN UCSF CHIMERA TO REFLECT THE DENSITY. SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-3383. (DEPOSITION ID: 14367).