Chlorine in PDB 1hq2: Crystal Structure of A Ternary Complex of E.Coli Hppk(R82A) with Mgampcpp and 6-Hydroxymethyl-7,8-Dihydropterin at 1.25 Angstrom Resolution

Enzymatic activity of Crystal Structure of A Ternary Complex of E.Coli Hppk(R82A) with Mgampcpp and 6-Hydroxymethyl-7,8-Dihydropterin at 1.25 Angstrom Resolution

All present enzymatic activity of Crystal Structure of A Ternary Complex of E.Coli Hppk(R82A) with Mgampcpp and 6-Hydroxymethyl-7,8-Dihydropterin at 1.25 Angstrom Resolution:
2.7.6.3;

Protein crystallography data

The structure of Crystal Structure of A Ternary Complex of E.Coli Hppk(R82A) with Mgampcpp and 6-Hydroxymethyl-7,8-Dihydropterin at 1.25 Angstrom Resolution, PDB code: 1hq2 was solved by J.Blaszczyk, X.Ji, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

*Resolution Low / High (Å)*	30.00 / 1.25
*Space group*	C 1 2 1
*Cell size a, b, c (Å), α, β, γ (°)*	73.372, 37.843, 58.018, 90.00, 117.18, 90.00
*R / R_free (%)*	13.4 / 17.2

Other elements in 1hq2:

The structure of Crystal Structure of A Ternary Complex of E.Coli Hppk(R82A) with Mgampcpp and 6-Hydroxymethyl-7,8-Dihydropterin at 1.25 Angstrom Resolution also contains other interesting chemical elements:

Magnesium

(Mg)

2 atoms

Chlorine Binding Sites:

The binding sites of Chlorine atom in the Crystal Structure of A Ternary Complex of E.Coli Hppk(R82A) with Mgampcpp and 6-Hydroxymethyl-7,8-Dihydropterin at 1.25 Angstrom Resolution (pdb code 1hq2). This binding sites where shown within 5.0 Angstroms radius around Chlorine atom.
In total only one binding site of Chlorine was determined in the Crystal Structure of A Ternary Complex of E.Coli Hppk(R82A) with Mgampcpp and 6-Hydroxymethyl-7,8-Dihydropterin at 1.25 Angstrom Resolution, PDB code: 1hq2:

Chlorine binding site 1 out of 1 in 1hq2

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Chlorine Binding Sites List in 1hq2

Chlorine binding site 1 out of 1 in the Crystal Structure of A Ternary Complex of E.Coli Hppk(R82A) with Mgampcpp and 6-Hydroxymethyl-7,8-Dihydropterin at 1.25 Angstrom Resolution

Mono view

Stereo pair view

A full contact list of Chlorine with other atoms in the Cl binding site number 1 of Crystal Structure of A Ternary Complex of E.Coli Hppk(R82A) with Mgampcpp and 6-Hydroxymethyl-7,8-Dihydropterin at 1.25 Angstrom Resolution within 5.0Å range:

probe	atom	residue	distance (Å)	B	Occ
A:Cl163 b:15.5 occ:1.00	O	A:HOH279	2.9	15.9	1.0
	NZ	A:LYS119	3.2	21.7	1.0
	N	A:ASP139	3.4	10.1	1.0
	O	A:HOH345	3.5	23.5	1.0
	CB	A:PHE137	3.5	8.3	1.0
	OD1	A:ASP139	3.5	11.2	1.0
	CG	A:ASP139	3.6	11.2	1.0
	CD	A:PRO138	3.6	8.1	1.0
	CB	A:ASP139	3.6	14.4	1.0
	CG	A:PRO114	3.8	7.9	1.0
	N	A:PRO138	3.8	8.9	1.0
	CE	A:LYS119	3.8	16.7	1.0
	CD2	A:PHE137	4.0	11.9	1.0
	CA	A:ASP139	4.1	12.8	1.0
	CG	A:PHE137	4.2	8.0	1.0
	CB	A:PRO138	4.2	10.1	1.0
	OD2	A:ASP139	4.2	15.1	1.0
	CG	A:PRO138	4.3	9.6	1.0
	C	A:PRO138	4.3	9.7	1.0
	CA	A:PRO138	4.3	10.6	1.0
	C	A:PHE137	4.4	7.5	1.0
	O	A:HOH292	4.4	23.3	1.0
	CA	A:PHE137	4.5	8.8	1.0
	CB	A:PRO114	4.6	8.8	1.0
	CD	A:PRO114	4.6	7.0	1.0

Reference:

J.Blaszczyk, Y.Li, G.Shi, H.Yan, X.Ji. Dynamic Roles of Arginine Residues 82 and 92 of Escherichia Coli 6-Hydroxymethyl-7,8-Dihydropterin Pyrophosphokinase: Crystallographic Studies Biochemistry V. 42 1573 2003.
ISSN: ISSN 0006-2960
PubMed: 12578370
DOI: 10.1021/BI0267994

Page generated: Thu Jul 10 17:16:26 2025

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