Chlorine in PDB 2bch: A Possible of Second Calcium Ion in Interfacial Binding: Atomic and Medium Resolution Crystal Structures of the Quadruple Mutant of Phospholipase A2

Enzymatic activity of A Possible of Second Calcium Ion in Interfacial Binding: Atomic and Medium Resolution Crystal Structures of the Quadruple Mutant of Phospholipase A2

All present enzymatic activity of A Possible of Second Calcium Ion in Interfacial Binding: Atomic and Medium Resolution Crystal Structures of the Quadruple Mutant of Phospholipase A2:
3.1.1.4;

Protein crystallography data

The structure of A Possible of Second Calcium Ion in Interfacial Binding: Atomic and Medium Resolution Crystal Structures of the Quadruple Mutant of Phospholipase A2, PDB code: 2bch was solved by K.Sekar, M.Yogavel, D.Velmurugan, M.J.Poi, Z.Dauter, M.D.Tsai, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

*Resolution Low / High (Å)*	20.00 / 1.10
*Space group*	P 3₁ 2 1
*Cell size a, b, c (Å), α, β, γ (°)*	45.908, 45.908, 101.372, 90.00, 90.00, 120.00
*R / R_free (%)*	10.4 / 13.3

Other elements in 2bch:

The structure of A Possible of Second Calcium Ion in Interfacial Binding: Atomic and Medium Resolution Crystal Structures of the Quadruple Mutant of Phospholipase A2 also contains other interesting chemical elements:

Calcium

(Ca)

1 atom

Chlorine Binding Sites:

The binding sites of Chlorine atom in the A Possible of Second Calcium Ion in Interfacial Binding: Atomic and Medium Resolution Crystal Structures of the Quadruple Mutant of Phospholipase A2 (pdb code 2bch). 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 A Possible of Second Calcium Ion in Interfacial Binding: Atomic and Medium Resolution Crystal Structures of the Quadruple Mutant of Phospholipase A2, PDB code: 2bch:

Chlorine binding site 1 out of 1 in 2bch

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Chlorine Binding Sites List in 2bch

Chlorine binding site 1 out of 1 in the A Possible of Second Calcium Ion in Interfacial Binding: Atomic and Medium Resolution Crystal Structures of the Quadruple Mutant of Phospholipase A2

Mono view

Stereo pair view

A full contact list of Chlorine with other atoms in the Cl binding site number 1 of A Possible of Second Calcium Ion in Interfacial Binding: Atomic and Medium Resolution Crystal Structures of the Quadruple Mutant of Phospholipase A2 within 5.0Å range:

probe	atom	residue	distance (Å)	B	Occ
A:Cl126 b:17.2 occ:0.77	OE2	A:GLU81	3.1	29.0	0.5
	N	A:ILE82	3.1	11.1	1.0
	NZ	A:LYS12	3.2	17.2	1.0
	O	A:HOH285	3.2	31.7	0.8
	CA	A:GLU81	3.6	12.9	1.0
	CD1	A:ILE104	3.7	12.2	1.0
	CD	A:LYS12	3.9	13.4	1.0
	C	A:GLU81	3.9	11.5	1.0
	CE	A:LYS12	4.0	13.7	1.0
	CG1	A:ILE104	4.0	10.5	1.0
	CB	A:ILE82	4.0	10.2	1.0
	NH2	A:ARG100	4.0	23.1	1.0
	O	A:ILE82	4.0	11.8	1.0
	CA	A:ILE82	4.0	10.6	1.0
	CD	A:GLU81	4.0	24.2	0.5
	CB	A:GLU81	4.2	16.4	0.5
	CB	A:GLU81	4.2	15.8	0.5
	NE	A:ARG100	4.2	15.5	1.0
	CG1	A:ILE82	4.3	11.1	1.0
	CZ	A:ARG100	4.4	17.1	1.0
	O	A:HOH333	4.5	47.0	0.5
	O	A:ASN80	4.5	14.7	1.0
	C	A:ILE82	4.5	10.6	1.0
	CD1	A:ILE82	4.5	11.7	1.0
	CG	A:GLU81	4.6	19.7	0.5
	CG	A:GLU81	4.7	20.6	0.5
	N	A:GLU81	4.8	12.8	1.0
	OE1	A:GLU81	4.9	36.8	0.5
	O	A:HOH276	4.9	41.2	1.0

Reference:

K.Sekar, M.Yogavel, S.P.Kanaujia, A.Sharma, D.Velmurugan, M.J.Poi, Z.Dauter, M.D.Tsai. Suggestive Evidence For the Involvement of the Second Calcium and Surface Loop in Interfacial Binding: Monoclinic and Trigonal Crystal Structures of A Quadruple Mutant of Phospholipase A(2). Acta Crystallogr.,Sect.D V. 62 717 2006.
ISSN: ISSN 0907-4449
PubMed: 16790927
DOI: 10.1107/S0907444906014855

Page generated: Thu Jul 10 21:22:54 2025

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