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Calcium in PDB 6m4m: X-Ray Crystal Structure of the E249Q Mutan of Alpha-Amylase I and Maltohexaose Complex From Eisenia Fetida

Enzymatic activity of X-Ray Crystal Structure of the E249Q Mutan of Alpha-Amylase I and Maltohexaose Complex From Eisenia Fetida

All present enzymatic activity of X-Ray Crystal Structure of the E249Q Mutan of Alpha-Amylase I and Maltohexaose Complex From Eisenia Fetida:
3.2.1.1;

Protein crystallography data

The structure of X-Ray Crystal Structure of the E249Q Mutan of Alpha-Amylase I and Maltohexaose Complex From Eisenia Fetida, PDB code: 6m4m was solved by Y.Hirano, K.Tsukamoto, S.Ariki, Y.Naka, M.Ueda, T.Tamada, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 41.92 / 1.70
Space group P 32 2 1
Cell size a, b, c (Å), α, β, γ (°) 96.809, 96.809, 121.233, 90.00, 90.00, 120.00
R / Rfree (%) 15.8 / 18

Other elements in 6m4m:

The structure of X-Ray Crystal Structure of the E249Q Mutan of Alpha-Amylase I and Maltohexaose Complex From Eisenia Fetida also contains other interesting chemical elements:

Chlorine (Cl) 1 atom

Calcium Binding Sites:

The binding sites of Calcium atom in the X-Ray Crystal Structure of the E249Q Mutan of Alpha-Amylase I and Maltohexaose Complex From Eisenia Fetida (pdb code 6m4m). 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 X-Ray Crystal Structure of the E249Q Mutan of Alpha-Amylase I and Maltohexaose Complex From Eisenia Fetida, PDB code: 6m4m:

Calcium binding site 1 out of 1 in 6m4m

Go back to Calcium Binding Sites List in 6m4m
Calcium binding site 1 out of 1 in the X-Ray Crystal Structure of the E249Q Mutan of Alpha-Amylase I and Maltohexaose Complex From Eisenia Fetida


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of X-Ray Crystal Structure of the E249Q Mutan of Alpha-Amylase I and Maltohexaose Complex From Eisenia Fetida within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Ca601

b:14.6
occ:1.00
 O A:ARG174 2.4 14.7 0.5
O A:HIS217 2.4 14.3 1.0
OD1 A:ASN118 2.4 13.1 1.0
OD1 A:ASP183 2.4 15.1 1.0
O A:HOH817 2.4 15.7 1.0
OD2 A:ASP183 2.5 15.2 1.0
O A:ARG174 2.6 14.9 0.5
O A:HOH937 2.6 14.6 1.0
O A:HOH725 2.6 14.7 1.0
CG A:ASP183 2.8 15.9 1.0
CG A:ASN118 3.5 16.2 1.0
C A:ARG174 3.5 14.8 0.5
C A:HIS217 3.5 15.9 1.0
C A:ARG174 3.6 14.6 0.5
ND2 A:ASN118 4.0 12.0 1.0
CA A:ARG174 4.2 13.4 0.5
CA A:ARG174 4.2 13.4 0.5
CB A:HIS217 4.2 11.4 1.0
CB A:ASP183 4.3 12.9 1.0
O A:ASN118 4.3 15.6 1.0
CA A:HIS217 4.4 12.8 1.0
ND1 A:HIS152 4.4 18.3 1.0
N A:MET218 4.5 13.5 0.5
N A:MET218 4.5 13.5 0.5
N A:ASN175 4.5 15.2 1.0
CG A:MET218 4.5 13.8 0.5
CA A:MET218 4.5 13.2 0.5
CE1 A:HIS152 4.5 18.2 1.0
CA A:MET218 4.6 13.2 0.5
O A:HOH1132 4.6 16.3 1.0
O A:LEU184 4.6 16.8 1.0
O A:CYS176 4.6 16.9 1.0
CB A:ASN118 4.8 13.9 1.0
CA A:ASN175 4.8 15.9 1.0
O A:VAL173 4.8 16.2 1.0
CB A:ARG174 4.9 12.3 0.5
O A:HOH950 4.9 16.5 1.0
O A:HOH729 5.0 17.2 1.0
CG A:MET218 5.0 12.5 0.5
CB A:ARG174 5.0 13.4 0.5

Reference:

Y.Hirano, K.Tsukamoto, S.Ariki, Y.Naka, M.Ueda, T.Tamada. X-Ray Crystallographic Structural Studies of Alpha-Amylase I From Eisenia Fetida. Acta Crystallogr D Struct V. 76 834 2020BIOL.
ISSN: ISSN 2059-7983
PubMed: 32876059
DOI: 10.1107/S2059798320010165
Page generated: Wed Jul 9 16:01:19 2025

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