MolNFT v1 · #171574 · protein + DNA + RNA

Transcription termination intermediate complex 3

6Z9R · Transcription TERMINATION/ANTITERMINATION protein nusg: “Transcription termination intermediate complex 3”. Electron microscopy, 5 ligands (ADP, BEF, DG), 20 pockets (best druggability 0.85). MolNFT v1 #171574 on GenesisL1: 3D…

PDB: 6Z9R
Type: protein + DNA + RNA
Length: 6,529 residues
Chains: 16
Method: electron microscopy
Collection: MolNFT v1 / PDB
Contract: 0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner: 0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule: Transcription TERMINATION/ANTITERMINATION protein nusg; Transcription termination factor…
EC: 3.6.4.-, 2.7.7.6
UniProt: C3SID2, A0A0A0GPI6, C3SSN7, P0A7Z4, P0A800, P0A8V4, C3SIA2
Ligands: ADP, BEF, DG, MG, ZN
Pockets: 20 · best druggability 0.85

Structure

electron microscopy · 11 distinct chains · 33% helix, 19% strand (DSSP).

Chain	Molecule	Type	Residues	Secondary structure	UniProt
G	Transcription TERMINATION/ANTITERMINATION protein nusg	protein	112	31% helix, 9% strand	C3SID2
f, a, b, c, d, e	Transcription termination factor rho (EC 3.6.4.-)	protein	417	39% helix, 20% strand	A0A0A0GPI6
A	Transcription TERMINATION/ANTITERMINATION protein nusa	protein	495	35% helix, 13% strand	C3SSN7
U	DNA-directed RNA polymerase subunit alpha (EC 2.7.7.6)	protein	235	20% helix, 35% strand	P0A7Z4
V	DNA-directed RNA polymerase subunit alpha (EC 2.7.7.6)	protein	321	29% helix, 22% strand	P0A7Z4
W	DNA-directed RNA polymerase subunit omega (EC 2.7.7.6)	protein	79	63% helix, 0% strand	P0A800
X	DNA-directed RNA polymerase subunit beta (EC 2.7.7.6)	protein	1340	30% helix, 22% strand	P0A8V4
Y	DNA-directed RNA polymerase subunit beta' (EC 2.7.7.6)	protein	1358	35% helix, 16% strand	C3SIA2
K	Non template strand	dna	25	—	—
L	Template strand	dna	34	—	—
R	Rut RNA	rna	28	—	—

Ligands and binding sites

ADP · Adenosine-5'-diphosphate · ligand · 5 copies · chains f, a, b, c, d, e
BEF · Beryllium trifluoride ion · ligand · 5 copies · chains f, a, b, c, d, e
DG · 2'-deoxyguanosine-5'-monophosphate · ligand · chains a, L
MG · Magnesium ion · metal · 6 copies · chains a, b, c, d, e, Y, R
ZN · Zinc ion · metal · 2 copies · chains Y

Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.

Pockets

20 pockets found on a 1 Å grid, 20 with a druggability of 0.5 or more.

Pocket	Volume (Å³)	Druggability	Buriedness	Lining residues	Inside
1	961	0.85	0.86	95	empty
2	1058	0.83	0.84	105	ADP, MG, BEF
3	1135	0.83	0.84	104	empty
4	1080	0.83	0.84	116	ADP, MG, BEF
5	411	0.81	0.90	49	empty

Interfaces

40 interfaces between chains.

X–Y · 8447 Å² buried · 104 hydrogen bonds · protein-protein
U–V · 2541 Å² buried · 22 hydrogen bonds · protein-protein
U–X · 1916 Å² buried · 21 hydrogen bonds · protein-protein
b–c · 1607 Å² buried · 17 hydrogen bonds · protein-protein
a–b · 1594 Å² buried · 17 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 3 covalent (covalent ligand).

Compared structures

6Z9R · Transcription termination intermediate complex 3 · the same entry in another collection · chain R against R, TM-score 1.00

Analyse

Open in the research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides and crosslinks on the 3D structure
Every structure of UniProt C3SID2
Every structure of UniProt A0A0A0GPI6
Every structure of UniProt C3SSN7
Every structure of UniProt P0A7Z4
Every structure of UniProt P0A800
Every structure of UniProt P0A8V4
Every structure of UniProt C3SIA2
Elsewhere: RCSB PDB 6Z9R · PDBe 6Z9R · UniProt C3SID2 · UniProt A0A0A0GPI6 · UniProt C3SSN7 · UniProt P0A7Z4 · UniProt P0A800 · UniProt P0A8V4 · UniProt C3SIA2

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