Mercury in PDB 1ca3: Unexpected pH-Dependent Conformation of His-64, the Proton Shuttle of Carbonic Anhydrase II.

Enzymatic activity of Unexpected pH-Dependent Conformation of His-64, the Proton Shuttle of Carbonic Anhydrase II.

All present enzymatic activity of Unexpected pH-Dependent Conformation of His-64, the Proton Shuttle of Carbonic Anhydrase II.:
4.2.1.1;

Protein crystallography data

The structure of Unexpected pH-Dependent Conformation of His-64, the Proton Shuttle of Carbonic Anhydrase II., PDB code: 1ca3 was solved by S.K.Nair, D.W.Christianson, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

*Resolution Low / High (Å)*	N/A / 2.30
*Space group*	P 1 2₁ 1
*Cell size a, b, c (Å), α, β, γ (°)*	42.700, 41.700, 73.000, 90.00, 104.60, 90.00
*R / R_free (%)*	n/a / n/a

Other elements in 1ca3:

The structure of Unexpected pH-Dependent Conformation of His-64, the Proton Shuttle of Carbonic Anhydrase II. also contains other interesting chemical elements:

Zinc

(Zn)

1 atom

Mercury Binding Sites:

The binding sites of Mercury atom in the Unexpected pH-Dependent Conformation of His-64, the Proton Shuttle of Carbonic Anhydrase II. (pdb code 1ca3). This binding sites where shown within 5.0 Angstroms radius around Mercury atom.
In total only one binding site of Mercury was determined in the Unexpected pH-Dependent Conformation of His-64, the Proton Shuttle of Carbonic Anhydrase II., PDB code: 1ca3:

Mercury binding site 1 out of 1 in 1ca3

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Mercury Binding Sites List in 1ca3

Mercury binding site 1 out of 1 in the Unexpected pH-Dependent Conformation of His-64, the Proton Shuttle of Carbonic Anhydrase II.

Mono view

Stereo pair view

A full contact list of Mercury with other atoms in the Hg binding site number 1 of Unexpected pH-Dependent Conformation of His-64, the Proton Shuttle of Carbonic Anhydrase II. within 5.0Å range:

probe	atom	residue	distance (Å)	B	Occ
A:Hg263 b:16.5 occ:1.00	SG	A:CYS206	2.3	4.9	1.0
	O	A:GLN137	2.9	11.8	1.0
	C	A:GLN137	3.3	11.9	1.0
	CB	A:CYS206	3.3	4.8	1.0
	N	A:GLN137	3.5	12.9	1.0
	O	A:GLU205	3.5	4.8	1.0
	O	A:HOH339	3.6	11.0	1.0
	CA	A:CYS206	3.7	4.9	1.0
	C	A:GLU205	3.8	4.9	1.0
	O	A:VAL135	3.8	13.8	1.0
	N	A:CYS206	3.8	5.0	1.0
	C	A:GLN136	3.9	13.4	1.0
	CA	A:GLN137	3.9	12.3	1.0
	N	A:PRO138	4.0	11.4	1.0
	C	A:VAL135	4.1	13.5	1.0
	CA	A:GLN136	4.2	13.7	1.0
	N	A:GLN136	4.3	13.6	1.0
	CA	A:PRO138	4.4	11.0	1.0
	O	A:HOH317	4.5	13.8	1.0
	N	A:GLU205	4.6	5.2	1.0
	O	A:GLN136	4.6	13.5	1.0
	CA	A:GLU205	4.8	5.0	1.0
	CA	A:VAL135	4.9	13.5	1.0
	O	A:ALA134	4.9	13.0	1.0

Reference:

S.K.Nair, D.W.Christianson. Unexpected pH-Dependent Conformation of His-64, the Proton Shuttle of Carbonic Anhydrase II. J.Am.Chem.Soc. V. 113 9455 1991.
ISSN: ISSN 0002-7863

Page generated: Sat Aug 10 23:22:48 2024

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