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Magnesium in PDB 1l9z: Thermus Aquaticus Rna Polymerase Holoenzyme/Fork-Junction Promoter Dna Complex at 6.5 A Resolution

Enzymatic activity of Thermus Aquaticus Rna Polymerase Holoenzyme/Fork-Junction Promoter Dna Complex at 6.5 A Resolution

All present enzymatic activity of Thermus Aquaticus Rna Polymerase Holoenzyme/Fork-Junction Promoter Dna Complex at 6.5 A Resolution:
2.7.7.6;

Protein crystallography data

The structure of Thermus Aquaticus Rna Polymerase Holoenzyme/Fork-Junction Promoter Dna Complex at 6.5 A Resolution, PDB code: 1l9z was solved by K.S.Murakami, S.Masuda, E.A.Campbell, O.Muzzin, S.A.Darst, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 80.00 / 6.50
Space group P 43 2 2
Cell size a, b, c (Å), α, β, γ (°) 180.947, 180.947, 523.461, 90.00, 90.00, 90.00
R / Rfree (%) n/a / n/a

Other elements in 1l9z:

The structure of Thermus Aquaticus Rna Polymerase Holoenzyme/Fork-Junction Promoter Dna Complex at 6.5 A Resolution also contains other interesting chemical elements:

Zinc (Zn) 2 atoms

Magnesium Binding Sites:

The binding sites of Magnesium atom in the Thermus Aquaticus Rna Polymerase Holoenzyme/Fork-Junction Promoter Dna Complex at 6.5 A Resolution (pdb code 1l9z). This binding sites where shown within 5.0 Angstroms radius around Magnesium atom.
In total only one binding site of Magnesium was determined in the Thermus Aquaticus Rna Polymerase Holoenzyme/Fork-Junction Promoter Dna Complex at 6.5 A Resolution, PDB code: 1l9z:

Magnesium binding site 1 out of 1 in 1l9z

Go back to Magnesium Binding Sites List in 1l9z
Magnesium binding site 1 out of 1 in the Thermus Aquaticus Rna Polymerase Holoenzyme/Fork-Junction Promoter Dna Complex at 6.5 A Resolution


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Thermus Aquaticus Rna Polymerase Holoenzyme/Fork-Junction Promoter Dna Complex at 6.5 A Resolution within 5.0Å range:
probe atom residue distance (Å) B Occ
D:Mg2001

b:25.0
occ:1.00
N D:ASP743 4.4 25.0 1.0
CA D:ASP743 4.5 25.0 1.0
C D:ASP741 4.7 25.0 1.0
C D:GLY742 4.9 25.0 1.0

Reference:

K.S.Murakami, S.Masuda, E.A.Campbell, O.Muzzin, S.A.Darst. Structural Basis of Transcription Initiation: An Rna Polymerase Holoenzyme-Dna Complex. Science V. 296 1285 2002.
ISSN: ISSN 0036-8075
PubMed: 12016307
DOI: 10.1126/SCIENCE.1069595
Page generated: Sun Aug 10 00:40:47 2025

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