Chlorine in PDB 1nm9: Crystal Structure of Recombinant Human Salivary Amylase Mutant W58A

Enzymatic activity of Crystal Structure of Recombinant Human Salivary Amylase Mutant W58A

All present enzymatic activity of Crystal Structure of Recombinant Human Salivary Amylase Mutant W58A:
3.2.1.1;

Protein crystallography data

The structure of Crystal Structure of Recombinant Human Salivary Amylase Mutant W58A, PDB code: 1nm9 was solved by N.Ramasubbu, C.Ragunath, P.J.Mishra, L.M.Thomas, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

*Resolution Low / High (Å)*	42.64 / 2.10
*Space group*	P 2₁ 2₁ 2₁
*Cell size a, b, c (Å), α, β, γ (°)*	51.946, 74.060, 134.508, 90.00, 90.00, 90.00
*R / R_free (%)*	16 / 19.6

Other elements in 1nm9:

The structure of Crystal Structure of Recombinant Human Salivary Amylase Mutant W58A also contains other interesting chemical elements:

Calcium

(Ca)

1 atom

Chlorine Binding Sites:

The binding sites of Chlorine atom in the Crystal Structure of Recombinant Human Salivary Amylase Mutant W58A (pdb code 1nm9). 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 Recombinant Human Salivary Amylase Mutant W58A, PDB code: 1nm9:

Chlorine binding site 1 out of 1 in 1nm9

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Chlorine Binding Sites List in 1nm9

Chlorine binding site 1 out of 1 in the Crystal Structure of Recombinant Human Salivary Amylase Mutant W58A

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 Recombinant Human Salivary Amylase Mutant W58A within 5.0Å range:

probe	atom	residue	distance (Å)	B	Occ
A:Cl498 b:20.1 occ:1.00	NH2	A:ARG337	3.2	15.4	1.0
	O	A:HOH604	3.2	14.1	1.0
	NE	A:ARG195	3.2	17.2	1.0
	NH2	A:ARG195	3.2	16.4	1.0
	NH1	A:ARG337	3.3	13.1	1.0
	ND2	A:ASN298	3.4	15.6	1.0
	CZ	A:ARG195	3.6	17.0	1.0
	CZ	A:ARG337	3.7	15.9	1.0
	CG2	A:THR254	3.9	14.7	1.0
	CG	A:GLU233	3.9	17.6	1.0
	CZ	A:PHE256	4.1	17.7	1.0
	CB	A:GLU233	4.3	17.5	1.0
	CD	A:ARG195	4.3	17.6	1.0
	CG	A:ASN298	4.4	17.1	1.0
	CB	A:ASN298	4.5	16.6	1.0
	CG	A:ARG195	4.6	18.2	1.0
	CE1	A:PHE256	4.7	18.6	1.0
	CD	A:GLU233	4.8	19.8	1.0
	CZ	A:PHE295	4.9	15.0	1.0
	O	A:HOH645	4.9	20.0	1.0
	CB	A:THR254	4.9	16.2	1.0
	CE1	A:HIS299	4.9	16.5	1.0
	OE2	A:GLU233	4.9	19.6	1.0
	NH1	A:ARG195	5.0	15.3	1.0
	NE	A:ARG337	5.0	14.8	1.0

Reference:

N.Ramasubbu, C.Ragunath, P.J.Mishra, L.M.Thomas, L.Kandra. Human Salivary Alpha-Amylase TRP58 Situated at Subsite -2 Is Critical For Enzyme Activity. Eur.J.Biochem. V. 271 2517 2004.
ISSN: ISSN 0014-2956
PubMed: 15182367
DOI: 10.1111/J.1432-1033.2004.04182.X

Page generated: Sat Jul 20 00:33:52 2024

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