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Calcium in PDB 2aae: The Role of Histidine-40 in Ribonuclease T1 Catalysis: Three- Dimensional Structures of the Partially Active HIS40LYS Mutant

Enzymatic activity of The Role of Histidine-40 in Ribonuclease T1 Catalysis: Three- Dimensional Structures of the Partially Active HIS40LYS Mutant

All present enzymatic activity of The Role of Histidine-40 in Ribonuclease T1 Catalysis: Three- Dimensional Structures of the Partially Active HIS40LYS Mutant:
3.1.27.3;

Protein crystallography data

The structure of The Role of Histidine-40 in Ribonuclease T1 Catalysis: Three- Dimensional Structures of the Partially Active HIS40LYS Mutant, PDB code: 2aae was solved by I.Zegers, P.Verhelst, C.W.Choe, J.Steyaert, U.Heinemann, L.Wyns, W.Saenger, 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 (°) 48.270, 46.500, 41.120, 90.00, 90.00, 90.00
R / Rfree (%) n/a / n/a

Calcium Binding Sites:

The binding sites of Calcium atom in the The Role of Histidine-40 in Ribonuclease T1 Catalysis: Three- Dimensional Structures of the Partially Active HIS40LYS Mutant (pdb code 2aae). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total only one binding site of Calcium was determined in the The Role of Histidine-40 in Ribonuclease T1 Catalysis: Three- Dimensional Structures of the Partially Active HIS40LYS Mutant, PDB code: 2aae:

Calcium binding site 1 out of 1 in 2aae

Go back to Calcium Binding Sites List in 2aae
Calcium binding site 1 out of 1 in the The Role of Histidine-40 in Ribonuclease T1 Catalysis: Three- Dimensional Structures of the Partially Active HIS40LYS Mutant


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of The Role of Histidine-40 in Ribonuclease T1 Catalysis: Three- Dimensional Structures of the Partially Active HIS40LYS Mutant within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Ca105

b:18.4
occ:1.00
 O A:HOH188 2.3 3.0 1.0
O A:HOH189 2.4 15.7 1.0
O A:HOH141 2.4 19.6 1.0
OD2 A:ASP15 2.4 4.8 1.0
O A:HOH161 2.6 19.3 1.0
O A:HOH156 2.6 19.2 1.0
OD1 A:ASP15 2.6 4.6 1.0
O A:HOH178 2.6 35.7 1.0
CG A:ASP15 2.8 5.8 1.0
CB A:ASP15 4.3 4.6 1.0
O A:HOH154 4.5 18.7 1.0
O A:HOH122 4.6 6.7 1.0
OG A:SER12 4.7 7.1 1.0
CA A:GLY65 4.7 12.1 1.0
O A:CYS10 4.8 8.9 1.0
N A:SER12 4.9 7.8 1.0
O A:HOH171 5.0 29.1 1.0

Reference:

I.Zegers, P.Verhelst, H.W.Choe, J.Steyaert, U.Heinemann, W.Saenger, L.Wyns. Role of Histidine-40 in Ribonuclease T1 Catalysis: Three-Dimensionalstructures of the Partially Active HIS40LYS Mutant. Biochemistry V. 31 11317 1992.
ISSN: ISSN 0006-2960
PubMed: 1445870
DOI: 10.1021/BI00161A009
Page generated: Tue Jul 8 04:15:42 2025

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