eF-site ID 4ylo-124578 PDB Code 4ylo Chain 1, 2, 4, 5, 7, 8 click to enlarge Title E. coli Transcription Initiation Complex - 16-bp spacer and 4-nt RNA Classification TRANSCRIPTION/DNA/RNA Compound DNA-directed RNA polymerase subunit alpha Source (4YLO) Sequence 1:  ACTTGACATCCACCTCACGTATGCTATAATGTGTGCAGTC TGACGCGGC 2:  GCCGCGTCAGACTCGTAGGATTATAGCATACGTGAGGTGG ATGTCAAGT 4:  ACTTGACATCCACCTCACGTATGCTATAATGTGTGCAGTC TGACGCGGC 5:  GCCGCGTCAGACTCGTAGGATTATAGCATACGTGAGGTGG ATGTCAAGT 7:  ACTTGACATCCACCTCACGTATGCTATAATGTGTGCAGTC TGACGCGGC 8:  GCCGCGTCAGACTCGTAGGATTATAGCATACGTGAGGTGG ATGTCAAGT Description (1)  E. coli RNA Polymerase alpha subunit, E. coli RNA Polymerase beta subunit, E. coli RNA Polymerase beta' subunit, E. coli RNA Polymerase omega subunit, E. coli RNA Polymerase sigma70 subunit/DNA Complex Functional site 1) chain 2 residue 16 type sequence C description binding site for nucleotide GTP 3 13 source : AD1 2) chain 2 residue 17 type sequence G description binding site for nucleotide GTP 3 13 source : AD1 3) chain 5 residue 15 type sequence T description binding site for nucleotide GTP 6 13 source : AD2 4) chain 5 residue 16 type sequence C description binding site for nucleotide GTP 6 13 source : AD2 5) chain 5 residue 17 type sequence G description binding site for nucleotide GTP 6 13 source : AD2 6) chain 8 residue 15 type sequence T description binding site for nucleotide GTP 9 13 source : AD3 7) chain 8 residue 16 type sequence C description binding site for nucleotide GTP 9 13 source : AD3 8) chain 8 residue 17 type sequence G description binding site for nucleotide GTP 9 13 source : AD3

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