Contacts of the helix formed by residues 9 - 17 (chain E) in PDB entry 1AXC
Residue contacts within the protein are
derived with the CSU software (Sobolev V., Sorokine A.,
Prilusky J., Abola E.E. and Edelman M. (1999) Automated
analysis of interatomic contacts in proteins.
Bioinformatics, 15, 327-332). A
short description of the analytical approach
is given at the end of the page.
Note:
Non-standard 3 letter residue
codes indicate a heterogroup. To identify
and analyse, use LPC software
Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC - hydrophobic-hydrophilic contact (destabilizing contact)
+/- - indicates presence/absence of a specific contacts
* - indicates residues forming contacts by their side chain
(including CA atoms)
Residues in contact with GLY 9 (chain E).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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6E LEU* 3.7 3.3 + - - -
7E VAL 3.1 2.0 + - - -
8E GLN* 1.3 72.3 - - - +
10E SER* 1.3 63.7 + - - +
12E LEU* 2.8 19.9 + - - +
13E LYS* 3.1 10.7 + - - +
84E ASN 5.1 1.2 + - - -
86E ASP* 3.1 27.2 + - - -
88E ILE* 3.6 29.7 - - - +
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Residues in contact with SER 10 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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8E GLN* 3.7 19.9 + - - +
9E GLY* 1.3 73.9 - - - +
11E ILE* 1.3 57.5 + - - +
13E LYS* 3.1 17.5 + - - +
14E LYS* 2.8 51.0 + - - +
84E ASN* 3.4 39.7 + - - -
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Residues in contact with ILE 11 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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6E LEU* 4.0 12.6 - - + -
8E GLN* 3.1 40.9 + - + +
9E GLY 2.9 0.6 + - - -
10E SER* 1.3 81.3 + - - +
12E LEU* 1.3 60.8 + - - +
14E LYS* 3.1 13.7 + - + +
15E VAL* 2.8 39.4 + - + +
52E LEU* 4.6 5.2 - - + -
221E LEU* 4.1 3.1 - - + +
241E ILE* 3.7 28.5 - - + -
242E ALA 4.8 6.7 - - - +
244E MET* 3.8 26.9 - - + -
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Residues in contact with LEU 12 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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6E LEU* 4.0 19.1 - - + -
9E GLY 2.8 12.6 + - - +
11E ILE* 1.3 78.6 - - - +
13E LYS* 1.3 60.0 + - - +
15E VAL* 4.4 5.6 - - + -
16E LEU* 3.4 31.0 + - + +
28E TRP* 4.8 10.1 - - + -
52E LEU* 4.3 22.9 - - + -
57E PHE* 5.4 4.3 - - + -
75E MET* 5.1 2.9 - - + -
79E LEU* 3.4 29.2 - - + +
88E ILE* 4.0 25.1 - - + -
90E LEU* 3.7 32.3 - - + -
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Residues in contact with LYS 13 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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146A ARG* 5.7 0.2 - - - +
9E GLY 3.1 10.7 + - - +
10E SER* 3.1 21.5 + - - +
12E LEU* 1.3 77.6 - - - +
14E LYS* 1.3 63.0 + - + +
16E LEU* 3.4 5.0 + - - +
17E GLU* 3.3 27.2 + - - +
79E LEU* 3.2 31.6 + - + +
80E LYS* 4.3 7.5 + - - +
82E ALA* 2.8 33.1 + - + +
83E GLY 3.8 17.7 - - - +
84E ASN* 3.3 32.2 - - - +
88E ILE* 4.5 4.0 - - + -
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Residues in contact with LYS 14 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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10E SER* 2.8 37.4 + - - +
11E ILE* 3.5 10.2 - - + +
13E LYS* 1.3 75.2 - - + +
15E VAL* 1.3 66.3 + - - +
17E GLU* 3.1 16.4 + - - +
18E ALA* 3.1 15.1 + - - +
84E ASN* 4.8 7.6 - - - +
217E LYS 5.1 0.7 - - - +
220E PRO* 3.9 44.7 + - + +
221E LEU* 3.5 20.9 - - + +
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Residues in contact with VAL 15 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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11E ILE* 2.8 28.5 + - + +
12E LEU* 4.0 11.9 - - + +
13E LYS 3.4 0.4 - - - -
14E LYS* 1.3 76.3 - - - +
16E LEU* 1.3 67.6 + - + +
18E ALA* 3.2 7.4 + - - +
19E LEU* 3.2 34.4 + - + +
28E TRP* 4.8 1.6 - - + -
50E LEU* 3.5 35.4 - - + -
52E LEU* 4.5 6.1 - - + -
221E LEU* 4.1 13.9 - - + -
241E ILE* 3.8 26.7 - - + -
247E LEU* 4.7 3.3 - - + +
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Residues in contact with LEU 16 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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12E LEU* 3.4 17.7 + - + +
13E LYS 3.4 4.5 + - - +
14E LYS 3.2 1.0 - - - -
15E VAL* 1.3 78.1 - - + +
17E GLU* 1.3 63.7 + - + +
18E ALA 3.1 2.0 - - - -
19E LEU* 3.8 5.8 - - + +
20E LYS* 3.2 30.7 + - - +
28E TRP* 4.0 25.1 - - + -
72E LEU* 3.9 26.0 - - + +
75E MET* 3.6 43.7 - - + -
76E SER* 4.7 8.4 - - - -
79E LEU* 3.3 26.7 - - + -
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Residues in contact with GLU 17 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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13E LYS* 3.3 14.7 + - + +
14E LYS* 3.1 11.0 + - - +
16E LEU* 1.3 77.2 - - - +
18E ALA* 1.3 57.7 + - - +
19E LEU 3.6 0.7 + - - -
20E LYS* 2.8 48.2 + - - +
21E ASP* 4.9 0.9 + - - +
76E SER* 3.2 14.6 + - - -
80E LYS* 4.7 14.6 - - - +
217E LYS* 4.1 22.4 - - - +
220E PRO* 6.4 1.6 - - + -
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A short description of the
analytical approach
The contact analysis used in this page
is based upon the approach
developed in:
Sobolev V., Wade R.C., Vriend G.
and Edelman M. PROTEINS (1996)
25, 120-129.
Contact legitimacy depends on the hydrophobic-hydrophilic
properties of the contacting atoms. In order to
define it, for each inter-atomic contact,
eight atom classes have been introduced:
I Hydrophilic - N and O that can donate and accept hydrogen bonds
(e.g., oxygen of hydroxyl group of Ser. or Thr)
II Acceptor - N or O that can only accept a hydrogen bond
III Donor - N that can only donate a hydrogen bond
IV Hydrophobic - Cl, Br, I and all C atoms that are not in
aromatic rings and do not have a covalent bond to
a N or O atom
V Aromatic - C in aromatic rings irrespective of any other
bonds formed by the atom
VI Neutral - C atoms that have a covalent bond to at least one
atom of class I or two or more atoms from class II
or III; atoms; S, F, P, and metal atoms in all cases
VII Neutral-donor - C atoms that have a covalent bond with only one
atom of class III
VIII Neutral-acceptor - C atoms that have a covalent bond with only
one atom of class II
For each pair of contacts the state of legitimacy
is shown below:
Legend:
+, legitimate
-, illegitimate
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Atomic class I II III IV V VI VII VIII
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I (Hydrophilic) + + + - + + + +
II (Acceptor) + - + - + + + -
III (Donor) + + - - + + - +
IV (Hydrophobic) - - - + + + + +
V (Aromatic) + + + + + + + +
VI (Neutral) + + + + + + + +
VII (Neutral-donor) + + - + + + - +
VIII (Neutral-acceptor) + - + + + + + -
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Warning!
Atom classes for heterogroups are automatically
assigned based on the atomic coordinates. However, in
three cases (see below) the automatic assignment
is currently ambiguous. In these
cases, the user is advised to manually analyse
the full list of contacts using
LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are
considered "aromatic" (Class V) if the ring is approximately
planar, and "hydrophobic" (Class IV) or "neutral" (Classes
VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
"hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
"carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).
Please E-mail any
questions and/or suggestions concerning this page to
Vladimir.Sobolev@weizmann.ac.il