Calcium in PDB 1sty: The Alpha Aneurism: A Structural Motif Revealed in An Insertion Mutant of Staphylococcal Nuclease

Enzymatic activity of The Alpha Aneurism: A Structural Motif Revealed in An Insertion Mutant of Staphylococcal Nuclease

All present enzymatic activity of The Alpha Aneurism: A Structural Motif Revealed in An Insertion Mutant of Staphylococcal Nuclease:
3.1.31.1;

Protein crystallography data

The structure of The Alpha Aneurism: A Structural Motif Revealed in An Insertion Mutant of Staphylococcal Nuclease, PDB code: 1sty was solved by L.J.Keefe, E.E.Lattman, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

*Resolution Low / High (Å)*	N/A / 1.67
*Space group*	P 4₁
*Cell size a, b, c (Å), α, β, γ (°)*	46.952, 46.952, 62.895, 90.00, 90.00, 90.00
*R / R_free (%)*	n/a / n/a

Calcium Binding Sites:

The binding sites of Calcium atom in the The Alpha Aneurism: A Structural Motif Revealed in An Insertion Mutant of Staphylococcal Nuclease (pdb code 1sty). 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 Alpha Aneurism: A Structural Motif Revealed in An Insertion Mutant of Staphylococcal Nuclease, PDB code: 1sty:

Calcium binding site 1 out of 1 in 1sty

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Calcium Binding Sites List in 1sty

Calcium binding site 1 out of 1 in the The Alpha Aneurism: A Structural Motif Revealed in An Insertion Mutant of Staphylococcal Nuclease

Mono view

Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of The Alpha Aneurism: A Structural Motif Revealed in An Insertion Mutant of Staphylococcal Nuclease within 5.0Å range:

probe	atom	residue	distance (Å)	B	Occ
A:Ca150 b:17.9 occ:1.00	OD2	A:ASP21	2.3	11.4	1.0
	O	A:HOH154	2.3	22.3	1.0
	O	A:HOH152	2.3	15.6	1.0
	O	A:HOH153	2.3	15.1	1.0
	OD1	A:ASP40	2.4	20.9	1.0
	O	A:THR41	2.7	16.8	1.0
	O4P	A:THP151	2.7	20.6	1.0
	CG	A:ASP21	3.2	12.2	1.0
	OD1	A:ASP21	3.4	14.3	1.0
	CG	A:ASP40	3.6	19.0	1.0
	N	A:THR41	3.8	15.0	1.0
	C	A:THR41	3.8	18.0	1.0
	P2	A:THP151	3.9	20.5	1.0
	NH2	A:ARG35	3.9	13.1	1.0
	OG1	A:THR41	4.0	15.3	1.0
	O	A:HOH173	4.0	14.6	0.8
	O6P	A:THP151	4.2	18.8	1.0
	O	A:HOH200	4.2	8.5	0.5
	OD2	A:ASP40	4.3	21.0	1.0
	CA	A:THR41	4.4	17.0	1.0
	C	A:ASP40	4.4	15.0	1.0
	CA	A:ASP40	4.4	15.0	1.0
	CZ	A:ARG35	4.5	13.4	1.0
	OD2	A:ASP19	4.6	19.1	1.0
	CB	A:ASP21	4.6	9.6	1.0
	CB	A:ASP40	4.6	16.4	1.0
	OE1	A:GLU43	4.6	26.8	1.0
	NE	A:ARG35	4.6	14.0	1.0
	O5P	A:THP151	4.6	19.1	1.0
	O	A:PRO42	4.7	18.4	1.0
	C	A:PRO42	4.8	19.6	1.0
	CB	A:THR41	4.8	15.6	1.0
	N	A:PRO42	4.9	17.5	1.0
	O	A:HOH232	5.0	26.1	0.3

Reference:

L.J.Keefe, J.Sondek, D.Shortle, E.E.Lattman. The Alpha Aneurism: A Structural Motif Revealed in An Insertion Mutant of Staphylococcal Nuclease. Proc.Natl.Acad.Sci.Usa V. 90 3275 1993.
ISSN: ISSN 0027-8424
PubMed: 8475069
DOI: 10.1073/PNAS.90.8.3275

Page generated: Tue Jul 8 02:05:36 2025

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