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Magnesium in PDB 2a31: Trypsin in Complex with Borate

Enzymatic activity of Trypsin in Complex with Borate

All present enzymatic activity of Trypsin in Complex with Borate:
3.4.21.4;

Protein crystallography data

The structure of Trypsin in Complex with Borate, PDB code: 2a31 was solved by T.R.Transue, S.A.Gabel, R.E.London, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 31.90 / 1.25
Space group P 21 21 21
Cell size a, b, c (Å), α, β, γ (°) 76.304, 53.446, 46.466, 90.00, 90.00, 90.00
R / Rfree (%) 14 / 16.2

Other elements in 2a31:

The structure of Trypsin in Complex with Borate also contains other interesting chemical elements:

Calcium (Ca) 1 atom
Sodium (Na) 1 atom

Magnesium Binding Sites:

The binding sites of Magnesium atom in the Trypsin in Complex with Borate (pdb code 2a31). This binding sites where shown within 5.0 Angstroms radius around Magnesium atom.
In total 3 binding sites of Magnesium where determined in the Trypsin in Complex with Borate, PDB code: 2a31:
Jump to Magnesium binding site number: 1; 2; 3;

Magnesium binding site 1 out of 3 in 2a31

Go back to Magnesium Binding Sites List in 2a31
Magnesium binding site 1 out of 3 in the Trypsin in Complex with Borate


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Trypsin in Complex with Borate within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Mg503

b:9.0
occ:0.60
CA A:CA502 0.5 8.2 0.4
H2 A:HOH975 1.8 9.8 0.9
O A:HOH1215 1.8 3.7 0.3
OE2 A:GLU80 1.9 12.4 1.0
OE1 A:GLU70 2.1 9.3 1.0
OE1 A:GLU77 2.1 20.1 0.7
O A:VAL75 2.2 11.8 1.0
H2 A:HOH1215 2.2 2.5 0.3
O A:ASN72 2.4 10.1 1.0
O A:HOH975 2.4 9.9 0.9
H1 A:HOH975 2.4 10.4 0.9
H1 A:HOH1215 2.6 2.2 0.3
HG3 A:GLU77 3.0 38.2 0.7
CD A:GLU80 3.1 12.4 1.0
CD A:GLU77 3.1 15.7 0.7
H A:GLU77 3.1 15.3 1.0
HA A:LEU76 3.2 17.1 1.0
CD A:GLU70 3.2 10.1 1.0
HG2 A:GLU80 3.3 10.1 1.0
C A:VAL75 3.4 11.2 1.0
C A:ASN72 3.4 9.3 1.0
H1 A:HOH1004 3.5 11.3 0.7
HG3 A:GLU80 3.5 10.1 1.0
CG A:GLU77 3.5 37.1 0.7
H A:HIS71 3.5 8.8 1.0
CG A:GLU80 3.5 10.2 1.0
HG3 A:GLU77 3.6 6.2 0.3
HA A:ILE73 3.7 8.3 1.0
OE2 A:GLU70 3.7 9.6 1.0
HB2 A:GLU77 3.7 23.3 0.3
HA A:GLU70 3.7 8.0 1.0
H A:VAL75 3.7 9.3 1.0
HB3 A:ASN72 3.8 8.7 1.0
H A:ASN72 3.8 9.1 1.0
H2 A:HOH1004 3.8 11.0 0.7
N A:GLU77 4.0 15.5 1.0
CA A:LEU76 4.0 17.5 1.0
H1 A:HOH1039 4.0 17.6 0.9
O A:HOH1004 4.1 12.5 0.7
N A:LEU76 4.1 12.9 1.0
OE2 A:GLU77 4.2 16.8 0.7
OE1 A:GLU80 4.2 14.8 1.0
HB2 A:GLU77 4.2 25.6 0.7
OE1 A:GLU77 4.2 5.2 0.3
N A:ASN72 4.2 9.2 1.0
HD12 A:LEU76 4.2 19.2 1.0
CA A:ASN72 4.3 8.3 1.0
N A:ILE73 4.3 8.8 1.0
N A:VAL75 4.4 9.4 1.0
CB A:GLU77 4.4 25.6 0.7
HG2 A:GLU77 4.4 38.2 0.7
CG A:GLU77 4.4 7.1 0.3
HB3 A:GLU70 4.4 8.4 1.0
H2 A:HOH1039 4.4 16.9 0.9
CA A:ILE73 4.4 8.8 1.0
CB A:GLU77 4.4 22.3 0.3
C A:LEU76 4.5 17.4 1.0
CA A:VAL75 4.5 11.3 1.0
N A:HIS71 4.5 8.1 1.0
CB A:ASN72 4.5 9.0 1.0
CG A:GLU70 4.5 9.2 1.0
CA A:GLU70 4.6 8.0 1.0
HB A:VAL75 4.6 10.1 1.0
O A:HOH1039 4.7 17.7 0.9
CB A:GLU70 4.7 8.1 1.0
C A:ILE73 4.8 11.4 1.0
CD A:GLU77 4.8 9.4 0.3
CA A:GLU77 4.8 19.4 1.0
HG2 A:GLU70 4.9 9.0 1.0

Magnesium binding site 2 out of 3 in 2a31

Go back to Magnesium Binding Sites List in 2a31
Magnesium binding site 2 out of 3 in the Trypsin in Complex with Borate


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 2 of Trypsin in Complex with Borate within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Mg504

b:25.7
occ:0.77
H2 A:HOH1159 1.9 24.0 0.7
H1 A:HOH1160 2.0 30.9 0.8
O A:HOH1158 2.0 23.9 0.8
H1 A:HOH1161 2.0 24.1 0.7
H1 A:HOH1115 2.0 28.5 1.0
O A:HOH1161 2.1 24.2 0.7
O A:HOH1162 2.2 26.5 0.5
O A:HOH1115 2.3 27.9 1.0
O A:HOH1159 2.3 24.0 0.7
O A:HOH1160 2.3 30.5 0.8
H2 A:HOH1158 2.5 24.3 0.8
H2 A:HOH1160 2.8 30.7 0.8
H1 A:HOH1158 2.8 24.3 0.8
H2 A:HOH1162 2.8 26.5 0.5
H1 A:HOH1162 2.9 26.5 0.5
H1 A:HOH1159 2.9 24.1 0.7
H2 A:HOH1161 3.1 24.2 0.7
H2 A:HOH1115 3.2 28.6 1.0
O A:TYR151 4.0 17.8 1.0
OD2 A:ASP74 4.0 15.1 1.0
H1 A:HOH920 4.1 26.4 0.8
H1 A:HOH1147 4.2 14.5 0.5
HB2 A:TYR151 4.2 12.7 1.0
H2 A:HOH1220 4.2 16.1 0.6
OD1 A:ASP74 4.3 16.8 1.0
O A:HOH1147 4.4 13.9 0.5
O A:HOH1220 4.4 16.2 0.6
CG A:ASP74 4.5 15.3 1.0
HB3 A:TYR151 4.7 12.4 1.0
H2 A:HOH1096 4.7 22.4 0.8
H1 A:HOH1220 4.8 16.2 0.6
HG A:SER153 4.8 14.8 1.0
CB A:TYR151 4.9 12.1 1.0
O A:HOH920 5.0 26.7 0.8

Magnesium binding site 3 out of 3 in 2a31

Go back to Magnesium Binding Sites List in 2a31
Magnesium binding site 3 out of 3 in the Trypsin in Complex with Borate


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 3 of Trypsin in Complex with Borate within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Mg505

b:22.2
occ:0.50
H1 A:HOH1138 2.0 15.4 0.5
H1 A:HOH1168 2.0 21.5 0.6
O A:HOH1233 2.0 17.3 0.4
H2 A:HOH1233 2.1 17.4 0.4
O A:HOH1170 2.1 16.2 0.3
O A:HOH1138 2.1 15.8 0.5
H1 A:HOH1169 2.2 20.0 0.6
O A:HOH1168 2.2 21.3 0.6
O A:HOH1167 2.2 18.5 0.6
H2 A:HOH1168 2.4 21.2 0.6
H1 A:HOH1170 2.6 17.0 0.3
O A:HOH1169 2.6 20.1 0.6
H2 A:HOH1138 2.7 15.8 0.5
H1 A:HOH1167 2.7 18.3 0.6
H2 A:HOH1170 2.8 17.0 0.3
H1 A:HOH1233 2.9 17.5 0.4
H2 A:HOH1167 2.9 18.5 0.6
H2 A:HOH1169 3.1 20.0 0.6
O A:HOH997 3.8 23.1 0.8
H1 A:HOH997 3.9 23.5 0.8
H2 A:HOH997 4.6 23.5 0.8

Reference:

T.R.Transue, S.A.Gabel, R.E.London. uc(Nmr) and Crystallographic Characterization of Adventitious Borate Binding By Trypsin. Bioconjug.Chem. V. 17 300 2006.
ISSN: ISSN 1043-1802
PubMed: 16536459
DOI: 10.1021/BC0502210
Page generated: Tue Aug 13 20:20:59 2024

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