Potassium in PDB 1keq: Crystal Structure of F65A/Y131C Carbonic Anhydrase V, Covalently Modified with 4-Chloromethylimidazole

Enzymatic activity of Crystal Structure of F65A/Y131C Carbonic Anhydrase V, Covalently Modified with 4-Chloromethylimidazole

All present enzymatic activity of Crystal Structure of F65A/Y131C Carbonic Anhydrase V, Covalently Modified with 4-Chloromethylimidazole:
4.2.1.1;

Protein crystallography data

The structure of Crystal Structure of F65A/Y131C Carbonic Anhydrase V, Covalently Modified with 4-Chloromethylimidazole, PDB code: 1keq was solved by K.M.Jude, S.K.Wright, C.Tu, D.N.Silverman, R.E.Viola, D.W.Christianson, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

*Resolution Low / High (Å)*	24.56 / 1.88
*Space group*	C 1 2 1
*Cell size a, b, c (Å), α, β, γ (°)*	99.299, 66.703, 92.563, 90.00, 105.70, 90.00
*R / R_free (%)*	18.5 / 21.7

Other elements in 1keq:

The structure of Crystal Structure of F65A/Y131C Carbonic Anhydrase V, Covalently Modified with 4-Chloromethylimidazole also contains other interesting chemical elements:

Zinc

(Zn)

2 atoms

Potassium Binding Sites:

The binding sites of Potassium atom in the Crystal Structure of F65A/Y131C Carbonic Anhydrase V, Covalently Modified with 4-Chloromethylimidazole (pdb code 1keq). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total only one binding site of Potassium was determined in the Crystal Structure of F65A/Y131C Carbonic Anhydrase V, Covalently Modified with 4-Chloromethylimidazole, PDB code: 1keq:

Potassium binding site 1 out of 1 in 1keq

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Potassium Binding Sites List in 1keq

Potassium binding site 1 out of 1 in the Crystal Structure of F65A/Y131C Carbonic Anhydrase V, Covalently Modified with 4-Chloromethylimidazole

Mono view

Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Crystal Structure of F65A/Y131C Carbonic Anhydrase V, Covalently Modified with 4-Chloromethylimidazole within 5.0Å range:

probe	atom	residue	distance (Å)	B	Occ
A:K305 b:28.3 occ:0.76	O	A:ASP171	2.3	16.2	1.0
	OE1	A:GLN173	2.3	16.1	1.0
	O	A:HOH449	2.3	16.7	1.0
	CD	A:GLN173	3.4	15.8	1.0
	C	A:ASP171	3.5	14.9	1.0
	O	A:HOH424	4.0	13.2	1.0
	CA	A:THR172	4.1	12.5	1.0
	N	A:GLN173	4.1	11.4	1.0
	C	A:THR172	4.2	11.3	1.0
	N	A:THR172	4.2	13.2	1.0
	CG	A:GLN173	4.2	14.6	1.0
	NE2	A:GLN173	4.3	17.0	1.0
	CB	A:GLN173	4.3	14.2	1.0
	CB	A:ASP171	4.4	13.2	1.0
	CA	A:ASP171	4.5	14.1	1.0
	O	A:HOH788	4.5	33.9	1.0
	O	A:THR172	4.9	11.8	1.0
	CA	A:GLN173	4.9	12.5	1.0

Reference:

K.M.Jude, S.K.Wright, C.Tu, D.N.Silverman, R.E.Viola, D.W.Christianson. Crystal Structure of F65A/Y131C-Methylimidazole Carbonic Anhydrase V Reveals Architectural Features of An Engineered Proton Shuttle. Biochemistry V. 41 2485 2002.
ISSN: ISSN 0006-2960
PubMed: 11851394
DOI: 10.1021/BI015808Q

Page generated: Mon Aug 12 04:46:38 2024

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