1GTZ
Structure of STREPTOMYCES COELICOLOR TYPE II DEHYDROQUINASE R23A MUTANT IN COMPLEX WITH DEHYDROSHIKIMATE
Functional Information from GO Data
Chain | GOid | namespace | contents |
A | 0003855 | molecular_function | 3-dehydroquinate dehydratase activity |
A | 0008652 | biological_process | amino acid biosynthetic process |
A | 0009073 | biological_process | aromatic amino acid family biosynthetic process |
A | 0009423 | biological_process | chorismate biosynthetic process |
A | 0016829 | molecular_function | lyase activity |
A | 0019631 | biological_process | quinate catabolic process |
B | 0003855 | molecular_function | 3-dehydroquinate dehydratase activity |
B | 0008652 | biological_process | amino acid biosynthetic process |
B | 0009073 | biological_process | aromatic amino acid family biosynthetic process |
B | 0009423 | biological_process | chorismate biosynthetic process |
B | 0016829 | molecular_function | lyase activity |
B | 0019631 | biological_process | quinate catabolic process |
C | 0003855 | molecular_function | 3-dehydroquinate dehydratase activity |
C | 0008652 | biological_process | amino acid biosynthetic process |
C | 0009073 | biological_process | aromatic amino acid family biosynthetic process |
C | 0009423 | biological_process | chorismate biosynthetic process |
C | 0016829 | molecular_function | lyase activity |
C | 0019631 | biological_process | quinate catabolic process |
D | 0003855 | molecular_function | 3-dehydroquinate dehydratase activity |
D | 0008652 | biological_process | amino acid biosynthetic process |
D | 0009073 | biological_process | aromatic amino acid family biosynthetic process |
D | 0009423 | biological_process | chorismate biosynthetic process |
D | 0016829 | molecular_function | lyase activity |
D | 0019631 | biological_process | quinate catabolic process |
E | 0003855 | molecular_function | 3-dehydroquinate dehydratase activity |
E | 0008652 | biological_process | amino acid biosynthetic process |
E | 0009073 | biological_process | aromatic amino acid family biosynthetic process |
E | 0009423 | biological_process | chorismate biosynthetic process |
E | 0016829 | molecular_function | lyase activity |
E | 0019631 | biological_process | quinate catabolic process |
F | 0003855 | molecular_function | 3-dehydroquinate dehydratase activity |
F | 0008652 | biological_process | amino acid biosynthetic process |
F | 0009073 | biological_process | aromatic amino acid family biosynthetic process |
F | 0009423 | biological_process | chorismate biosynthetic process |
F | 0016829 | molecular_function | lyase activity |
F | 0019631 | biological_process | quinate catabolic process |
G | 0003855 | molecular_function | 3-dehydroquinate dehydratase activity |
G | 0008652 | biological_process | amino acid biosynthetic process |
G | 0009073 | biological_process | aromatic amino acid family biosynthetic process |
G | 0009423 | biological_process | chorismate biosynthetic process |
G | 0016829 | molecular_function | lyase activity |
G | 0019631 | biological_process | quinate catabolic process |
H | 0003855 | molecular_function | 3-dehydroquinate dehydratase activity |
H | 0008652 | biological_process | amino acid biosynthetic process |
H | 0009073 | biological_process | aromatic amino acid family biosynthetic process |
H | 0009423 | biological_process | chorismate biosynthetic process |
H | 0016829 | molecular_function | lyase activity |
H | 0019631 | biological_process | quinate catabolic process |
I | 0003855 | molecular_function | 3-dehydroquinate dehydratase activity |
I | 0008652 | biological_process | amino acid biosynthetic process |
I | 0009073 | biological_process | aromatic amino acid family biosynthetic process |
I | 0009423 | biological_process | chorismate biosynthetic process |
I | 0016829 | molecular_function | lyase activity |
I | 0019631 | biological_process | quinate catabolic process |
J | 0003855 | molecular_function | 3-dehydroquinate dehydratase activity |
J | 0008652 | biological_process | amino acid biosynthetic process |
J | 0009073 | biological_process | aromatic amino acid family biosynthetic process |
J | 0009423 | biological_process | chorismate biosynthetic process |
J | 0016829 | molecular_function | lyase activity |
J | 0019631 | biological_process | quinate catabolic process |
K | 0003855 | molecular_function | 3-dehydroquinate dehydratase activity |
K | 0008652 | biological_process | amino acid biosynthetic process |
K | 0009073 | biological_process | aromatic amino acid family biosynthetic process |
K | 0009423 | biological_process | chorismate biosynthetic process |
K | 0016829 | molecular_function | lyase activity |
K | 0019631 | biological_process | quinate catabolic process |
L | 0003855 | molecular_function | 3-dehydroquinate dehydratase activity |
L | 0008652 | biological_process | amino acid biosynthetic process |
L | 0009073 | biological_process | aromatic amino acid family biosynthetic process |
L | 0009423 | biological_process | chorismate biosynthetic process |
L | 0016829 | molecular_function | lyase activity |
L | 0019631 | biological_process | quinate catabolic process |
Functional Information from PDB Data
site_id | AC1 |
Number of Residues | 11 |
Details | BINDING SITE FOR RESIDUE DHK A1162 |
Chain | Residue |
A | TYR28 |
A | HOH2013 |
B | ASP92 |
A | ASN79 |
A | ALA81 |
A | ALA82 |
A | HIS85 |
A | HIS106 |
A | ILE107 |
A | SER108 |
A | ARG117 |
site_id | AC2 |
Number of Residues | 9 |
Details | BINDING SITE FOR RESIDUE TRS A1152 |
Chain | Residue |
A | GLU59 |
A | THR86 |
A | SER87 |
B | GLU59 |
B | THR86 |
B | SER87 |
C | GLU59 |
C | THR86 |
C | SER87 |
site_id | AC3 |
Number of Residues | 11 |
Details | BINDING SITE FOR RESIDUE DHK B1162 |
Chain | Residue |
B | TYR28 |
B | ASN79 |
B | ALA81 |
B | ALA82 |
B | HIS85 |
B | HIS106 |
B | ILE107 |
B | SER108 |
B | ARG117 |
B | HOH2116 |
C | ASP92 |
site_id | AC4 |
Number of Residues | 10 |
Details | BINDING SITE FOR RESIDUE DHK C1162 |
Chain | Residue |
A | ASP92 |
C | TYR28 |
C | ASN79 |
C | ALA81 |
C | ALA82 |
C | HIS85 |
C | ILE107 |
C | SER108 |
C | ARG117 |
C | HOH2093 |
site_id | AC5 |
Number of Residues | 10 |
Details | BINDING SITE FOR RESIDUE DHK D1162 |
Chain | Residue |
D | TYR28 |
D | ASN79 |
D | ALA81 |
D | ALA82 |
D | HIS85 |
D | ILE107 |
D | SER108 |
D | ARG117 |
D | HOH2014 |
E | ASP92 |
site_id | AC6 |
Number of Residues | 9 |
Details | BINDING SITE FOR RESIDUE TRS D1152 |
Chain | Residue |
D | GLU59 |
D | THR86 |
D | SER87 |
E | GLU59 |
E | THR86 |
E | SER87 |
F | GLU59 |
F | THR86 |
F | SER87 |
site_id | AC7 |
Number of Residues | 11 |
Details | BINDING SITE FOR RESIDUE DHK E1162 |
Chain | Residue |
E | TYR28 |
E | ASN79 |
E | ALA81 |
E | ALA82 |
E | HIS85 |
E | HIS106 |
E | ILE107 |
E | SER108 |
E | ARG117 |
E | HOH2163 |
F | ASP92 |
site_id | AC8 |
Number of Residues | 11 |
Details | BINDING SITE FOR RESIDUE DHK F1162 |
Chain | Residue |
D | ASP92 |
F | TYR28 |
F | ASN79 |
F | ALA81 |
F | ALA82 |
F | HIS85 |
F | HIS106 |
F | ILE107 |
F | SER108 |
F | ARG117 |
F | HOH2009 |
site_id | AC9 |
Number of Residues | 10 |
Details | BINDING SITE FOR RESIDUE DHK G1162 |
Chain | Residue |
G | TYR28 |
G | ASN79 |
G | ALA81 |
G | ALA82 |
G | HIS85 |
G | ILE107 |
G | SER108 |
G | ARG117 |
G | HOH2015 |
H | ASP92 |
site_id | BC1 |
Number of Residues | 9 |
Details | BINDING SITE FOR RESIDUE TRS G1153 |
Chain | Residue |
I | THR86 |
I | SER87 |
G | GLU59 |
G | THR86 |
G | SER87 |
H | GLU59 |
H | THR86 |
H | SER87 |
I | GLU59 |
site_id | BC2 |
Number of Residues | 11 |
Details | BINDING SITE FOR RESIDUE DHK H1162 |
Chain | Residue |
H | TYR28 |
H | ASN79 |
H | ALA81 |
H | ALA82 |
H | HIS85 |
H | HIS106 |
H | ILE107 |
H | SER108 |
H | ARG117 |
H | HOH2012 |
I | ASP92 |
site_id | BC3 |
Number of Residues | 11 |
Details | BINDING SITE FOR RESIDUE DHK I1162 |
Chain | Residue |
G | ASP92 |
I | TYR28 |
I | ASN79 |
I | ALA81 |
I | ALA82 |
I | HIS85 |
I | HIS106 |
I | ILE107 |
I | SER108 |
I | ARG117 |
I | HOH2012 |
site_id | BC4 |
Number of Residues | 11 |
Details | BINDING SITE FOR RESIDUE DHK J1162 |
Chain | Residue |
J | TYR28 |
J | ASN79 |
J | ALA81 |
J | ALA82 |
J | HIS85 |
J | HIS106 |
J | ILE107 |
J | SER108 |
J | ARG117 |
J | HOH2009 |
K | ASP92 |
site_id | BC5 |
Number of Residues | 9 |
Details | BINDING SITE FOR RESIDUE TRS J1152 |
Chain | Residue |
J | GLU59 |
J | THR86 |
J | SER87 |
K | GLU59 |
K | THR86 |
K | SER87 |
L | GLU59 |
L | THR86 |
L | SER87 |
site_id | BC6 |
Number of Residues | 11 |
Details | BINDING SITE FOR RESIDUE DHK K1162 |
Chain | Residue |
K | TYR28 |
K | ASN79 |
K | ALA81 |
K | ALA82 |
K | HIS85 |
K | HIS106 |
K | ILE107 |
K | SER108 |
K | ARG117 |
K | HOH2008 |
L | ASP92 |
site_id | BC7 |
Number of Residues | 10 |
Details | BINDING SITE FOR RESIDUE DHK L1162 |
Chain | Residue |
J | ASP92 |
L | TYR28 |
L | ASN79 |
L | ALA81 |
L | ALA82 |
L | HIS85 |
L | ILE107 |
L | SER108 |
L | ARG117 |
L | HOH2004 |
Functional Information from SwissProt/UniProt
site_id | SWS_FT_FI1 |
Number of Residues | 12 |
Details | ACT_SITE: Proton acceptor |
Chain | Residue | Details |
A | GLY29 | |
J | GLY29 | |
K | GLY29 | |
L | GLY29 | |
B | GLY29 | |
C | GLY29 | |
D | GLY29 | |
E | GLY29 | |
F | GLY29 | |
G | GLY29 | |
H | GLY29 | |
I | GLY29 |
site_id | SWS_FT_FI2 |
Number of Residues | 12 |
Details | ACT_SITE: Proton donor |
Chain | Residue | Details |
A | ILE107 | |
J | ILE107 | |
K | ILE107 | |
L | ILE107 | |
B | ILE107 | |
C | ILE107 | |
D | ILE107 | |
E | ILE107 | |
F | ILE107 | |
G | ILE107 | |
H | ILE107 | |
I | ILE107 |
site_id | SWS_FT_FI3 |
Number of Residues | 60 |
Details | BINDING: |
Chain | Residue | Details |
A | PRO80 | |
B | HIS118 | |
C | PRO80 | |
C | THR86 | |
C | ALA93 | |
C | SER108 | |
C | HIS118 | |
D | PRO80 | |
D | THR86 | |
D | ALA93 | |
D | SER108 | |
A | THR86 | |
D | HIS118 | |
E | PRO80 | |
E | THR86 | |
E | ALA93 | |
E | SER108 | |
E | HIS118 | |
F | PRO80 | |
F | THR86 | |
F | ALA93 | |
F | SER108 | |
A | ALA93 | |
F | HIS118 | |
G | PRO80 | |
G | THR86 | |
G | ALA93 | |
G | SER108 | |
G | HIS118 | |
H | PRO80 | |
H | THR86 | |
H | ALA93 | |
H | SER108 | |
A | SER108 | |
H | HIS118 | |
I | PRO80 | |
I | THR86 | |
I | ALA93 | |
I | SER108 | |
I | HIS118 | |
J | PRO80 | |
J | THR86 | |
J | ALA93 | |
J | SER108 | |
A | HIS118 | |
J | HIS118 | |
K | PRO80 | |
K | THR86 | |
K | ALA93 | |
K | SER108 | |
K | HIS118 | |
L | PRO80 | |
L | THR86 | |
L | ALA93 | |
L | SER108 | |
B | PRO80 | |
L | HIS118 | |
B | THR86 | |
B | ALA93 | |
B | SER108 |
site_id | SWS_FT_FI4 |
Number of Residues | 12 |
Details | SITE: Transition state stabilizer |
Chain | Residue | Details |
A | GLN24 | |
J | GLN24 | |
K | GLN24 | |
L | GLN24 | |
B | GLN24 | |
C | GLN24 | |
D | GLN24 | |
E | GLN24 | |
F | GLN24 | |
G | GLN24 | |
H | GLN24 | |
I | GLN24 |
Catalytic Information from CSA
site_id | MCSA1 |
Number of Residues | 9 |
Details | M-CSA 55 |
Chain | Residue | Details |
A | ASN16 | activator, hydrogen bond acceptor, steric role |
A | LEU17 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
A | GLN24 | activator, attractive charge-charge interaction, electrostatic stabiliser, polar interaction |
A | GLY29 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
A | PRO80 | hydrogen bond acceptor, steric role |
A | TYR83 | activator, hydrogen bond donor, steric role |
A | VAL105 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
A | ILE107 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor, proton relay |
A | GLU114 | activator, attractive charge-charge interaction, electrostatic stabiliser, polar interaction |
site_id | MCSA10 |
Number of Residues | 9 |
Details | M-CSA 55 |
Chain | Residue | Details |
J | ASN16 | activator, hydrogen bond acceptor, steric role |
J | LEU17 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
J | GLN24 | activator, attractive charge-charge interaction, electrostatic stabiliser, polar interaction |
J | GLY29 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
J | PRO80 | hydrogen bond acceptor, steric role |
J | TYR83 | activator, hydrogen bond donor, steric role |
J | VAL105 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
J | ILE107 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor, proton relay |
J | GLU114 | activator, attractive charge-charge interaction, electrostatic stabiliser, polar interaction |
site_id | MCSA11 |
Number of Residues | 9 |
Details | M-CSA 55 |
Chain | Residue | Details |
K | ASN16 | activator, hydrogen bond acceptor, steric role |
K | LEU17 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
K | GLN24 | activator, attractive charge-charge interaction, electrostatic stabiliser, polar interaction |
K | GLY29 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
K | PRO80 | hydrogen bond acceptor, steric role |
K | TYR83 | activator, hydrogen bond donor, steric role |
K | VAL105 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
K | ILE107 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor, proton relay |
K | GLU114 | activator, attractive charge-charge interaction, electrostatic stabiliser, polar interaction |
site_id | MCSA12 |
Number of Residues | 9 |
Details | M-CSA 55 |
Chain | Residue | Details |
L | ASN16 | activator, hydrogen bond acceptor, steric role |
L | LEU17 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
L | GLN24 | activator, attractive charge-charge interaction, electrostatic stabiliser, polar interaction |
L | GLY29 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
L | PRO80 | hydrogen bond acceptor, steric role |
L | TYR83 | activator, hydrogen bond donor, steric role |
L | VAL105 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
L | ILE107 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor, proton relay |
L | GLU114 | activator, attractive charge-charge interaction, electrostatic stabiliser, polar interaction |
site_id | MCSA2 |
Number of Residues | 9 |
Details | M-CSA 55 |
Chain | Residue | Details |
B | ASN16 | activator, hydrogen bond acceptor, steric role |
B | LEU17 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
B | GLN24 | activator, attractive charge-charge interaction, electrostatic stabiliser, polar interaction |
B | GLY29 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
B | PRO80 | hydrogen bond acceptor, steric role |
B | TYR83 | activator, hydrogen bond donor, steric role |
B | VAL105 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
B | ILE107 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor, proton relay |
B | GLU114 | activator, attractive charge-charge interaction, electrostatic stabiliser, polar interaction |
site_id | MCSA3 |
Number of Residues | 9 |
Details | M-CSA 55 |
Chain | Residue | Details |
C | ASN16 | activator, hydrogen bond acceptor, steric role |
C | LEU17 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
C | GLN24 | activator, attractive charge-charge interaction, electrostatic stabiliser, polar interaction |
C | GLY29 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
C | PRO80 | hydrogen bond acceptor, steric role |
C | TYR83 | activator, hydrogen bond donor, steric role |
C | VAL105 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
C | ILE107 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor, proton relay |
C | GLU114 | activator, attractive charge-charge interaction, electrostatic stabiliser, polar interaction |
site_id | MCSA4 |
Number of Residues | 9 |
Details | M-CSA 55 |
Chain | Residue | Details |
D | ASN16 | activator, hydrogen bond acceptor, steric role |
D | LEU17 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
D | GLN24 | activator, attractive charge-charge interaction, electrostatic stabiliser, polar interaction |
D | GLY29 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
D | PRO80 | hydrogen bond acceptor, steric role |
D | TYR83 | activator, hydrogen bond donor, steric role |
D | VAL105 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
D | ILE107 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor, proton relay |
D | GLU114 | activator, attractive charge-charge interaction, electrostatic stabiliser, polar interaction |
site_id | MCSA5 |
Number of Residues | 9 |
Details | M-CSA 55 |
Chain | Residue | Details |
E | ASN16 | activator, hydrogen bond acceptor, steric role |
E | LEU17 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
E | GLN24 | activator, attractive charge-charge interaction, electrostatic stabiliser, polar interaction |
E | GLY29 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
E | PRO80 | hydrogen bond acceptor, steric role |
E | TYR83 | activator, hydrogen bond donor, steric role |
E | VAL105 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
E | ILE107 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor, proton relay |
E | GLU114 | activator, attractive charge-charge interaction, electrostatic stabiliser, polar interaction |
site_id | MCSA6 |
Number of Residues | 9 |
Details | M-CSA 55 |
Chain | Residue | Details |
F | ASN16 | activator, hydrogen bond acceptor, steric role |
F | LEU17 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
F | GLN24 | activator, attractive charge-charge interaction, electrostatic stabiliser, polar interaction |
F | GLY29 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
F | PRO80 | hydrogen bond acceptor, steric role |
F | TYR83 | activator, hydrogen bond donor, steric role |
F | VAL105 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
F | ILE107 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor, proton relay |
F | GLU114 | activator, attractive charge-charge interaction, electrostatic stabiliser, polar interaction |
site_id | MCSA7 |
Number of Residues | 9 |
Details | M-CSA 55 |
Chain | Residue | Details |
G | ASN16 | activator, hydrogen bond acceptor, steric role |
G | LEU17 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
G | GLN24 | activator, attractive charge-charge interaction, electrostatic stabiliser, polar interaction |
G | GLY29 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
G | PRO80 | hydrogen bond acceptor, steric role |
G | TYR83 | activator, hydrogen bond donor, steric role |
G | VAL105 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
G | ILE107 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor, proton relay |
G | GLU114 | activator, attractive charge-charge interaction, electrostatic stabiliser, polar interaction |
site_id | MCSA8 |
Number of Residues | 9 |
Details | M-CSA 55 |
Chain | Residue | Details |
H | ASN16 | activator, hydrogen bond acceptor, steric role |
H | LEU17 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
H | GLN24 | activator, attractive charge-charge interaction, electrostatic stabiliser, polar interaction |
H | GLY29 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
H | PRO80 | hydrogen bond acceptor, steric role |
H | TYR83 | activator, hydrogen bond donor, steric role |
H | VAL105 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
H | ILE107 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor, proton relay |
H | GLU114 | activator, attractive charge-charge interaction, electrostatic stabiliser, polar interaction |
site_id | MCSA9 |
Number of Residues | 9 |
Details | M-CSA 55 |
Chain | Residue | Details |
I | ASN16 | activator, hydrogen bond acceptor, steric role |
I | LEU17 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
I | GLN24 | activator, attractive charge-charge interaction, electrostatic stabiliser, polar interaction |
I | GLY29 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
I | PRO80 | hydrogen bond acceptor, steric role |
I | TYR83 | activator, hydrogen bond donor, steric role |
I | VAL105 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
I | ILE107 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor, proton relay |
I | GLU114 | activator, attractive charge-charge interaction, electrostatic stabiliser, polar interaction |