Calcium in PDB 1dr3: 2.3 Angstroms Crystal Structure of Chicken Liver Dihydrofolate Reductase Complexed with Thionadp+ and Biopterin

Enzymatic activity of 2.3 Angstroms Crystal Structure of Chicken Liver Dihydrofolate Reductase Complexed with Thionadp+ and Biopterin

All present enzymatic activity of 2.3 Angstroms Crystal Structure of Chicken Liver Dihydrofolate Reductase Complexed with Thionadp+ and Biopterin:
1.5.1.3;

Protein crystallography data

The structure of 2.3 Angstroms Crystal Structure of Chicken Liver Dihydrofolate Reductase Complexed with Thionadp+ and Biopterin, PDB code: 1dr3 was solved by M.A.Mctigue, J.F.Davies /Ii, B.T.Kaufman, N.-H.Xuong, J.Kraut, 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*	C 1 2 1
*Cell size a, b, c (Å), α, β, γ (°)*	89.200, 48.310, 64.230, 90.00, 124.80, 90.00
*R / R_free (%)*	n/a / n/a

Calcium Binding Sites:

The binding sites of Calcium atom in the 2.3 Angstroms Crystal Structure of Chicken Liver Dihydrofolate Reductase Complexed with Thionadp+ and Biopterin (pdb code 1dr3). 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 2.3 Angstroms Crystal Structure of Chicken Liver Dihydrofolate Reductase Complexed with Thionadp+ and Biopterin, PDB code: 1dr3:

Calcium binding site 1 out of 1 in 1dr3

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Calcium Binding Sites List in 1dr3

Calcium binding site 1 out of 1 in the 2.3 Angstroms Crystal Structure of Chicken Liver Dihydrofolate Reductase Complexed with Thionadp+ and Biopterin

Mono view

Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of 2.3 Angstroms Crystal Structure of Chicken Liver Dihydrofolate Reductase Complexed with Thionadp+ and Biopterin within 5.0Å range:

probe	atom	residue	distance (Å)	B	Occ
A:Ca200 b:24.9 occ:0.50	OE2	A:GLU78	2.0	37.8	1.0
	O	A:HOH278	2.1	39.9	1.0
	O3X	A:TAP191	2.3	21.1	1.0
	CD	A:GLU78	3.2	33.8	1.0
	P2B	A:TAP191	3.6	27.9	1.0
	O3B	A:TAP191	3.8	26.4	1.0
	NZ	A:LYS54	3.9	29.9	1.0
	CG	A:GLU78	4.0	31.9	1.0
	OE1	A:GLU78	4.0	39.8	1.0
	O	A:HOH672	4.2	66.1	1.0
	O1X	A:TAP191	4.2	22.8	1.0
	O	A:HOH393	4.3	53.1	1.0
	O2X	A:TAP191	4.4	28.9	1.0
	O2B	A:TAP191	4.7	29.6	1.0

Reference:

M.A.Mctigue, J.F.Davies 2Nd., B.T.Kaufman, J.Kraut. Crystal Structures of Chicken Liver Dihydrofolate Reductase: Binary Thionadp+ and Ternary Thionadp+.Biopterin Complexes. Biochemistry V. 32 6855 1993.
ISSN: ISSN 0006-2960
PubMed: 8334118
DOI: 10.1021/BI00078A008

Page generated: Mon Jul 7 14:28:51 2025

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