Calcium in PDB 3bir: Disecting Histidine Interactions in Ribonuclease T1 By Asn and Gln Substitutions

All present enzymatic activity of Disecting Histidine Interactions in Ribonuclease T1 By Asn and Gln Substitutions:
3.1.27.3;

The structure of Disecting Histidine Interactions in Ribonuclease T1 By Asn and Gln Substitutions, PDB code: 3bir was solved by J.Doumen, J.Steyaert, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	10.00 / 1.80
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	40.160, 46.880, 50.070, 90.00, 90.00, 90.00
R / Rfree (%)	19.2 / 23.7

The binding sites of Calcium atom in the Disecting Histidine Interactions in Ribonuclease T1 By Asn and Gln Substitutions (pdb code 3bir). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total 2 binding sites of Calcium where determined in the Disecting Histidine Interactions in Ribonuclease T1 By Asn and Gln Substitutions, PDB code: 3bir:
Jump to Calcium binding site number: 1; 2;

Calcium binding site 1 out of 2 in the Disecting Histidine Interactions in Ribonuclease T1 By Asn and Gln Substitutions


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Disecting Histidine Interactions in Ribonuclease T1 By Asn and Gln Substitutions within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca106 b:9.6 occ:1.00 O A:HOH206 2.3 10.4 1.0 OD2 A:ASP15 2.4 7.9 1.0 O A:HOH219 2.5 16.4 1.0 O A:HOH214 2.5 11.6 1.0 O A:HOH241 2.5 24.0 1.0 O A:HOH212 2.6 11.8 1.0 OD1 A:ASP15 2.6 10.4 1.0 O A:HOH238 2.8 23.0 1.0 CG A:ASP15 2.9 7.2 1.0 O A:HOH309 4.3 52.5 1.0 CB A:ASP15 4.3 7.1 1.0 OG A:SER12 4.4 10.5 1.0 O A:HOH247 4.5 20.3 1.0 O A:CYS10 4.6 8.7 1.0 O A:HOH211 4.8 10.0 1.0 N A:SER12 4.9 8.4 1.0 O A:HOH307 4.9 72.6 1.0

Calcium binding site 2 out of 2 in the Disecting Histidine Interactions in Ribonuclease T1 By Asn and Gln Substitutions


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 2 of Disecting Histidine Interactions in Ribonuclease T1 By Asn and Gln Substitutions within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca107 b:19.3 occ:1.00 O A:HOH221 2.2 13.6 1.0 O3P A:2GP105 2.3 8.2 1.0 OD1 A:ASN98 2.3 24.7 1.0 O A:HOH217 2.6 11.2 1.0 O A:HOH260 2.6 36.2 1.0 CG A:ASN98 3.2 22.7 1.0 ND2 A:ASN98 3.4 23.3 1.0 P A:2GP105 3.5 10.3 1.0 O A:HOH301 3.8 62.6 1.0 O2P A:2GP105 4.0 12.4 1.0 ND2 A:ASN36 4.2 31.0 0.6 ND2 A:ASN36 4.2 31.4 0.6 O1P A:2GP105 4.2 8.6 1.0 ND2 A:ASN92 4.3 4.1 1.0 O A:HOH277 4.3 50.4 1.0 NH2 A:ARG77 4.4 7.9 1.0 OH A:TYR38 4.4 6.0 1.0 CB A:ASN98 4.6 17.3 1.0 O2' A:2GP105 4.8 9.2 1.0

S.De Vos, J.Doumen, U.Langhorst, J.Steyaert. Dissecting Histidine Interactions of Ribonuclease T1 with Asparagine and Glutamine Replacements: Analysis of Double Mutant Cycles at One Position. J.Mol.Biol. V. 275 651 1998.
ISSN: ISSN 0022-2836
PubMed: 9466938
DOI: 10.1006/JMBI.1997.1480