Magnesium in PDB 8r3m: Mycobacterium Smegnatis Rna Polymerase Transcription Initiation Complex with Sigmaa, Rbpa, Held N-Terminal, Co and Pch Loop Domain, and An Upstream-Fork Promoter Fragment; State III Conformation

Enzymatic activity of Mycobacterium Smegnatis Rna Polymerase Transcription Initiation Complex with Sigmaa, Rbpa, Held N-Terminal, Co and Pch Loop Domain, and An Upstream-Fork Promoter Fragment; State III Conformation

All present enzymatic activity of Mycobacterium Smegnatis Rna Polymerase Transcription Initiation Complex with Sigmaa, Rbpa, Held N-Terminal, Co and Pch Loop Domain, and An Upstream-Fork Promoter Fragment; State III Conformation:
2.7.7.6;

Other elements in 8r3m:

The structure of Mycobacterium Smegnatis Rna Polymerase Transcription Initiation Complex with Sigmaa, Rbpa, Held N-Terminal, Co and Pch Loop Domain, and An Upstream-Fork Promoter Fragment; State III Conformation also contains other interesting chemical elements:

Zinc

(Zn)

2 atoms

Magnesium Binding Sites:

The binding sites of Magnesium atom in the Mycobacterium Smegnatis Rna Polymerase Transcription Initiation Complex with Sigmaa, Rbpa, Held N-Terminal, Co and Pch Loop Domain, and An Upstream-Fork Promoter Fragment; State III Conformation (pdb code 8r3m). 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 Mycobacterium Smegnatis Rna Polymerase Transcription Initiation Complex with Sigmaa, Rbpa, Held N-Terminal, Co and Pch Loop Domain, and An Upstream-Fork Promoter Fragment; State III Conformation, PDB code: 8r3m:

Magnesium binding site 1 out of 1 in 8r3m

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Magnesium Binding Sites List in 8r3m

Magnesium binding site 1 out of 1 in the Mycobacterium Smegnatis Rna Polymerase Transcription Initiation Complex with Sigmaa, Rbpa, Held N-Terminal, Co and Pch Loop Domain, and An Upstream-Fork Promoter Fragment; State III Conformation

Mono view

Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Mycobacterium Smegnatis Rna Polymerase Transcription Initiation Complex with Sigmaa, Rbpa, Held N-Terminal, Co and Pch Loop Domain, and An Upstream-Fork Promoter Fragment; State III Conformation within 5.0Å range:

probe	atom	residue	distance (Å)	B	Occ
D:Mg2003 b:21.3 occ:1.00	OD2	H:ASP483	2.2	27.9	1.0
	OD1	D:ASP537	2.3	23.1	1.0
	OD1	D:ASP535	2.3	18.2	1.0
	OD1	D:ASP539	2.5	24.0	1.0
	CG	D:ASP535	3.1	18.2	1.0
	CG	H:ASP483	3.2	27.9	1.0
	CG	D:ASP537	3.2	23.1	1.0
	OD2	D:ASP535	3.2	18.2	1.0
	CG	D:ASP539	3.2	24.0	1.0
	OD2	D:ASP539	3.3	24.0	1.0
	OD2	D:ASP537	3.5	23.1	1.0
	CB	H:ASP483	3.6	27.9	1.0
	OD1	H:ASP482	4.0	28.1	1.0
	O	D:ASP535	4.1	18.2	1.0
	OD1	H:ASP483	4.3	27.9	1.0
	N	H:ASP483	4.5	27.9	1.0
	CB	D:ASP535	4.5	18.2	1.0
	N	D:ASP539	4.6	24.0	1.0
	CB	D:ASP537	4.6	23.1	1.0
	CB	D:ASP539	4.6	24.0	1.0
	CA	H:ASP483	4.6	27.9	1.0
	O	D:ASP537	4.7	23.1	1.0
	C	D:ASP537	4.7	23.1	1.0
	C	D:ASP535	4.8	18.2	1.0
	N	D:ASP535	4.8	18.2	1.0
	N	D:ASP537	4.8	23.1	1.0
	CA	D:ASP535	4.9	18.2	1.0
	CA	D:ASP537	5.0	23.1	1.0
	CA	D:ASP539	5.0	24.0	1.0

Reference:

T.Koval, L.Dohnalek, K.Libor, T.Kouba. Molecular Insights Into Rna Polymerase Recycling By Mycobacterial Held To Be Published.

Page generated: Fri Aug 15 13:47:24 2025

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