Calcium in PDB 7kqn: Ternary Complex of Tert (Telomerase Reverse Transcriptase) with Rna Template, Dna Primer, An Incoming Dgtp and A Downstream Hybrid Duplex

Enzymatic activity of Ternary Complex of Tert (Telomerase Reverse Transcriptase) with Rna Template, Dna Primer, An Incoming Dgtp and A Downstream Hybrid Duplex

All present enzymatic activity of Ternary Complex of Tert (Telomerase Reverse Transcriptase) with Rna Template, Dna Primer, An Incoming Dgtp and A Downstream Hybrid Duplex:
2.7.7.49;

Protein crystallography data

The structure of Ternary Complex of Tert (Telomerase Reverse Transcriptase) with Rna Template, Dna Primer, An Incoming Dgtp and A Downstream Hybrid Duplex, PDB code: 7kqn was solved by W.S.Choi, P.J.Weng, W.Yang, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 29.65 / 2.02
Space group P 1 21 1
Cell size a, b, c (Å), α, β, γ (°) 71.86, 164.04, 95.36, 90, 111.91, 90
R / Rfree (%) 16.8 / 18.8

Calcium Binding Sites:

The binding sites of Calcium atom in the Ternary Complex of Tert (Telomerase Reverse Transcriptase) with Rna Template, Dna Primer, An Incoming Dgtp and A Downstream Hybrid Duplex (pdb code 7kqn). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total 2 binding sites of Calcium where determined in the Ternary Complex of Tert (Telomerase Reverse Transcriptase) with Rna Template, Dna Primer, An Incoming Dgtp and A Downstream Hybrid Duplex, PDB code: 7kqn:
Jump to Calcium binding site number: 1; 2;

Calcium binding site 1 out of 2 in 7kqn

Go back to Calcium Binding Sites List in 7kqn
Calcium binding site 1 out of 2 in the Ternary Complex of Tert (Telomerase Reverse Transcriptase) with Rna Template, Dna Primer, An Incoming Dgtp and A Downstream Hybrid Duplex


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Ternary Complex of Tert (Telomerase Reverse Transcriptase) with Rna Template, Dna Primer, An Incoming Dgtp and A Downstream Hybrid Duplex within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Ca614

b:30.9
occ:1.00
 OD2 A:ASP343 2.3 29.1 1.0
O A:ILE252 2.3 31.4 1.0
OD1 A:ASP251 2.3 41.2 1.0
O2B A:DGT615 2.3 33.5 1.0
O2A A:DGT615 2.4 28.9 1.0
O2G A:DGT615 2.4 33.5 1.0
OD2 A:ASP251 2.8 33.4 1.0
CG A:ASP251 2.8 41.3 1.0
C A:ILE252 3.5 32.0 1.0
CG A:ASP343 3.5 29.1 1.0
PB A:DGT615 3.5 33.2 1.0
PA A:DGT615 3.6 30.1 1.0
PG A:DGT615 3.7 39.7 1.0
NZ A:LYS372 3.8 37.0 1.0
O3A A:DGT615 3.9 36.7 1.0
O3B A:DGT615 4.0 39.9 1.0
C5' A:DGT615 4.0 35.2 1.0
N A:ILE252 4.1 32.4 1.0
OD1 A:ASP343 4.1 28.4 1.0
O5' A:DGT615 4.2 32.4 1.0
O A:HOH803 4.3 36.0 1.0
CB A:ASP251 4.3 31.8 1.0
CA A:ILE252 4.3 29.7 1.0
N A:ASP254 4.3 38.6 1.0
O3G A:DGT615 4.4 46.7 1.0
N A:ARG253 4.4 31.7 1.0
CA A:ARG253 4.5 37.7 1.0
C A:ASP251 4.5 33.2 1.0
O3' C:DG7 4.5 36.9 1.0
CE A:LYS372 4.6 44.9 1.0
CB A:ASP343 4.6 33.9 1.0
N A:ALA255 4.6 29.3 1.0
C A:ARG253 4.6 35.3 1.0
CB A:ALA255 4.7 33.6 1.0
OD1 A:ASP344 4.8 33.2 0.5
O1A A:DGT615 4.8 34.2 1.0
O1G A:DGT615 4.9 40.5 1.0
O1B A:DGT615 4.9 32.2 1.0
OD1 A:ASP344 4.9 42.2 0.5
CA A:ASP251 4.9 35.4 1.0
CB A:ILE252 4.9 33.0 1.0

Calcium binding site 2 out of 2 in 7kqn

Go back to Calcium Binding Sites List in 7kqn
Calcium binding site 2 out of 2 in the Ternary Complex of Tert (Telomerase Reverse Transcriptase) with Rna Template, Dna Primer, An Incoming Dgtp and A Downstream Hybrid Duplex


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 2 of Ternary Complex of Tert (Telomerase Reverse Transcriptase) with Rna Template, Dna Primer, An Incoming Dgtp and A Downstream Hybrid Duplex within 5.0Å range:
probe atom residue distance (Å) B Occ
D:Ca612

b:30.0
occ:1.00
 OD2 D:ASP343 2.2 30.0 1.0
OD2 D:ASP251 2.3 39.0 1.0
O1B D:DGT613 2.3 31.0 1.0
O2A D:DGT613 2.3 31.7 1.0
O D:ILE252 2.4 32.0 1.0
O2G D:DGT613 2.4 31.4 1.0
CG D:ASP251 2.9 39.2 1.0
OD1 D:ASP251 2.9 37.2 1.0
CG D:ASP343 3.4 33.3 1.0
PA D:DGT613 3.5 32.0 1.0
PB D:DGT613 3.5 31.4 1.0
C D:ILE252 3.6 33.3 1.0
PG D:DGT613 3.7 40.5 1.0
O3A D:DGT613 3.8 36.4 1.0
C5' D:DGT613 3.9 36.8 1.0
O3B D:DGT613 4.0 47.1 1.0
OD1 D:ASP343 4.0 32.1 1.0
NZ D:LYS372 4.1 42.8 1.0
N D:ILE252 4.1 31.0 1.0
O5' D:DGT613 4.2 29.6 1.0
CB D:ASP251 4.3 38.1 1.0
O F:HOH105 4.4 34.0 1.0
N D:ASP254 4.4 38.1 1.0
O1G D:DGT613 4.4 41.8 1.0
CA D:ILE252 4.4 32.0 1.0
O3' F:DG7 4.5 43.6 1.0
N D:ARG253 4.5 34.8 1.0
CB D:ASP343 4.5 32.0 1.0
CA D:ARG253 4.5 38.2 1.0
C D:ASP251 4.5 34.2 1.0
OD1 D:ASP344 4.6 44.6 1.0
N D:ALA255 4.6 30.0 1.0
CB D:ALA255 4.7 26.7 1.0
C D:ARG253 4.7 34.6 1.0
O1A D:DGT613 4.8 38.2 1.0
O3G D:DGT613 4.8 35.6 1.0
O2B D:DGT613 4.8 33.9 1.0
CA D:ASP251 4.9 32.9 1.0
ND2 D:ASN369 5.0 51.3 1.0

Reference:

W.S.Choi, P.J.Weng, W.Yang. Flexibility of Telomerase in Binding the Rna Template and Dna Telomeric Repeat. Proc.Natl.Acad.Sci.Usa V. 119 2022.
ISSN: ESSN 1091-6490
PubMed: 34969861
DOI: 10.1073/PNAS.2116159118
Page generated: Fri Jul 19 01:22:59 2024

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