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    PDB 158d-1ajq
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      1iz7
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      1j10
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    PDB 4dtx-4eoa
    PDB 4epz-5apr
    PDB 5bca-8tln
    PDB 966c-9rnt

Calcium in the structure of Crystal Structure of Atp-Dependent Phosphoenolpyruvate Carboxykinase From Thermus Thermophilus HB8 (pdb 1j3b)

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The binding sites of Calcium atom in the structure of Crystal Structure of Atp-Dependent Phosphoenolpyruvate Carboxykinase From Thermus Thermophilus HB8 (pdb code 1j3b). This binding sites where shown with 5.0 Angstroms radius around Calcium atom.
The 1j3b structure was solved by M.SUGAHARA, M.MIYANO, N.KUNISHIMA, RIKEN STRUCTURAL GENOMICS/PROTEOMICSINITIATIVE (RSGI), with X-Ray Crystallography technique, brief refinement statistics is given in the table below:

*Resolution (A)*	36.1-2.0
*Space group*	P2₁2₁2₁
*a (A)*	64.702
*b (A)*	129.910
*c (A)*	173.391
*alpha (°)*	90.00
*beta (°)*	90.00
*gamma (°)*	90.00
*R_factor (%)*	20.7
*R_free (%)*	22.6

Calcium Binding Sites:

Calcium binding site 1 out of 2 in 1j3b

Click to enlarge

stereopicture of Calcium binding site 1 out of 2 in 1j3b

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Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 1 of Calcium in the PDB 1j3b. Coordination sphere was calculated for all residues within 5.0 Angstroms distance from the central Calcium atom, shown by VdW sphere
Residues shown as a stick model or VDW spheres: A: Arg130, A: Asn131, A: Met132, A: Phe133, A: Ile134, A: Leu135, A: Gly267, A: Gly268, A: Pro323, A: Hoh3022, A: Hoh3030,

conact list:

Atom	Atom	Distance (A)
Ca	O A:*Arg*130	2.80
Ca	C A:*Arg*130	3.90
Ca	O A:*Asn*131	2.69
Ca	N A:*Asn*131	4.34
Ca	C A:*Asn*131	3.40
Ca	CA A:*Asn*131	3.79
Ca	N A:*Met*132	4.45
Ca	C A:*Met*132	4.61
Ca	O A:*Phe*133	2.57
Ca	N A:*Phe*133	4.35
Ca	C A:*Phe*133	3.77
Ca	CA A:*Phe*133	4.64
Ca	N A:*Ile*134	4.68
Ca	CA A:*Ile*134	4.67
Ca	N A:*Leu*135	4.84
Ca	CG A:*Leu*135	4.98
Ca	O A:*Gly*267	3.05
Ca	N A:*Gly*267	4.92
Ca	C A:*Gly*267	3.63
Ca	CA A:*Gly*267	4.05
Ca	N A:*Gly*268	4.49
Ca	CA A:*Gly*268	4.89
Ca	CB A:*Pro*323	4.04
Ca	CA A:*Pro*323	4.35
Ca	O A:*Hoh*3022	4.11
Ca	O A:*Hoh*3030	2.94

interactive model:

Calcium binding site 2 out of 2 in 1j3b

Click to enlarge

stereopicture of Calcium binding site 2 out of 2 in 1j3b

Click to enlarge

Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 2 of Calcium in the PDB 1j3b. Coordination sphere was calculated for all residues within 5.0 Angstroms distance from the central Calcium atom, shown by VdW sphere
Residues shown as a stick model or VDW spheres: B: Arg130, B: Asn131, B: Met132, B: Phe133, B: Ile134, B: Leu135, B: Gly267, B: Gly268, B: Pro323, B: Hoh3069, B: Hoh3104,

conact list:

Atom	Atom	Distance (A)
Ca	O B:*Arg*130	2.81
Ca	C B:*Arg*130	3.91
Ca	O B:*Asn*131	2.78
Ca	N B:*Asn*131	4.36
Ca	C B:*Asn*131	3.46
Ca	CA B:*Asn*131	3.84
Ca	N B:*Met*132	4.47
Ca	C B:*Met*132	4.64
Ca	O B:*Phe*133	2.56
Ca	N B:*Phe*133	4.37
Ca	C B:*Phe*133	3.76
Ca	CA B:*Phe*133	4.67
Ca	N B:*Ile*134	4.65
Ca	CA B:*Ile*134	4.64
Ca	N B:*Leu*135	4.86
Ca	O B:*Gly*267	2.98
Ca	N B:*Gly*267	4.96
Ca	C B:*Gly*267	3.62
Ca	CA B:*Gly*267	4.07
Ca	N B:*Gly*268	4.53
Ca	CA B:*Gly*268	4.90
Ca	CB B:*Pro*323	4.04
Ca	CA B:*Pro*323	4.31
Ca	O B:*Hoh*3069	3.97
Ca	O B:*Hoh*3104	2.96