Contacts of the helix formed by residues 15 - 24 (chain A) in PDB entry 6WNX
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 LEU 15 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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10A LEU* 2.8 30.8 + - + +
13A GLN* 3.6 21.1 - - + +
14A GLY* 1.3 81.6 - - - +
16A ASP* 1.3 64.3 + - - +
17A HIS* 3.2 16.6 - - + -
18A ILE* 3.1 27.7 + - + +
86B ILE* 6.2 0.4 - - + -
87B LEU* 3.8 30.5 - - + +
90B ASN* 3.7 33.2 - - + +
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Residues in contact with ASP 16 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
11A PRO* 3.5 33.1 - - - +
14A GLY* 3.4 10.8 + - - +
15A LEU* 1.3 75.2 - - - +
17A HIS* 1.3 63.5 + - - +
19A ALA* 3.1 7.8 + - - +
20A GLU* 3.0 35.0 + - - +
43A ARG* 3.2 31.0 + - - -
44A VAL* 5.0 3.5 - - + +
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Residues in contact with HIS 17 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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14A GLY 4.8 3.4 + - - -
15A LEU* 4.1 23.9 - - + -
16A ASP* 1.3 78.7 + - - +
18A ILE* 1.3 94.4 + - + +
20A GLU* 3.2 18.7 - - - +
21A ASN* 2.9 42.3 + - - +
90B ASN* 3.9 9.3 + - - -
98B LEU* 6.2 0.2 - - + -
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Residues in contact with ILE 18 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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10A LEU* 3.8 13.5 - - + -
15A LEU* 3.1 28.2 + - + +
17A HIS* 1.3 103.9 - - + +
19A ALA* 1.3 66.1 + - - +
21A ASN* 2.9 13.5 + - - +
22A ILE* 2.9 21.7 + - + +
86B ILE* 3.7 27.4 - - + -
90B ASN* 3.3 25.4 - - + +
98B LEU* 4.2 16.8 - - + -
102B CYS* 3.9 16.6 - - - -
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Residues in contact with ALA 19 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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7A ILE* 3.8 29.9 - - + +
10A LEU* 3.7 29.0 - - + +
11A PRO* 4.1 4.3 - - + -
15A LEU 3.6 0.8 + - - -
16A ASP 3.1 9.6 + - - +
18A ILE* 1.3 77.5 - - - +
20A GLU* 1.3 62.3 + - - +
22A ILE* 3.3 6.8 + - - +
23A LEU* 3.1 27.6 + - - +
44A VAL* 4.3 9.2 - - + -
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Residues in contact with GLU 20 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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16A ASP* 3.0 30.0 + - - +
17A HIS* 3.2 19.7 - - - +
18A ILE 3.1 0.2 - - - -
19A ALA* 1.3 73.2 - - - +
21A ASN* 1.3 54.9 + - - +
23A LEU* 3.1 5.8 + - - +
24A SER* 2.8 34.7 + - - -
44A VAL* 4.2 15.7 - - + +
47A GLU* 4.5 2.9 - - - +
48A GLY* 3.3 32.3 + - - -
50A LEU* 3.7 15.6 - - + +
53A LYS* 3.6 20.1 + - - +
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Residues in contact with ASN 21 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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17A HIS* 2.9 36.1 + - - +
18A ILE* 3.3 20.0 - - - +
20A GLU* 1.3 71.3 - - - +
22A ILE* 1.3 67.4 + - - +
24A SER* 2.2 31.7 + - - +
25A TYR* 3.4 13.4 - - + +
98B LEU* 5.2 7.3 - - - +
102B CYS* 4.9 10.8 - - + -
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Residues in contact with ILE 22 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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6A PHE* 4.4 5.6 - - + -
7A ILE* 4.0 14.6 - - + -
10A LEU* 3.9 28.3 - - + -
18A ILE* 2.9 11.2 + - + +
19A ALA* 3.4 8.7 - - - +
20A GLU 3.2 0.2 - - - -
21A ASN* 1.3 79.2 - - - +
23A LEU* 1.3 62.5 + - - +
24A SER 3.2 0.2 + - - -
25A TYR* 3.2 25.9 + - - +
26A LEU* 4.4 0.5 + - - +
86B ILE* 4.7 3.8 - - + -
102B CYS* 3.7 34.1 - - + +
105B VAL* 4.0 27.4 - - + -
106B ALA* 3.6 25.3 - - - +
109B ILE* 4.1 9.2 - - + -
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Residues in contact with LEU 23 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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7A ILE* 4.0 27.4 - - + -
19A ALA 3.1 11.6 + - - +
20A GLU* 3.1 7.2 + - - +
22A ILE* 1.3 75.1 - - - +
24A SER* 1.3 56.7 + - - +
25A TYR 3.0 0.7 - - - -
26A LEU* 3.0 53.9 + - + +
31A LEU* 4.4 7.0 - - + +
34A ALA* 4.0 17.5 - - + -
41A TRP* 4.8 1.6 - - + -
44A VAL* 3.7 30.5 - - + -
45A ILE* 3.8 21.5 - - + +
50A LEU* 3.9 14.7 - - + +
109B ILE* 4.7 7.2 - - + -
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Residues in contact with SER 24 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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20A GLU 2.8 12.9 + - - -
21A ASN* 2.2 32.2 + - - +
23A LEU* 1.3 75.8 - - - +
25A TYR* 1.3 57.2 + - - +
26A LEU 3.4 0.9 - - - -
50A LEU* 3.6 14.3 - - - +
53A LYS* 5.4 11.2 - - - -
54A LEU* 5.5 0.7 - - - +
57A ARG* 2.4 31.7 + - - -
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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