Contacts of the helix formed by residues 111 - 115 (chain I) in PDB entry 2DYY
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 111 (chain I).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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106H VAL* 4.0 8.3 - - + +
107H GLU* 4.0 9.7 - - - +
78I TYR* 3.3 36.6 - - + +
80I LYS* 4.6 4.7 - - + +
108I VAL* 3.4 25.8 - - + -
110I ARG* 1.3 80.9 + - - +
112I PRO* 1.3 77.5 - - + +
113I LYS 3.5 0.2 + - - -
114I ASP* 3.1 14.1 + - - +
115I VAL* 3.5 22.1 + - + +
116I LEU 3.8 6.1 - - - +
117I ILE* 3.5 33.4 - - - +
118I GLU* 3.5 17.3 - - + +
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Residues in contact with PRO 112 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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86H ALA* 6.1 4.0 - - + -
103H ARG* 5.5 5.8 - - - +
105H ALA* 3.6 24.2 - - + +
106H VAL* 5.2 0.2 - - - -
107H GLU* 4.8 5.8 - - - +
33I ILE* 4.5 19.0 - - + +
110I ARG* 5.5 0.2 - - - +
111I LEU* 1.3 86.4 - - + +
113I LYS* 1.3 63.4 + - + +
114I ASP 2.8 11.3 + - - -
115I VAL* 3.1 18.2 + - - +
118I GLU* 3.1 28.0 - - - +
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Residues in contact with LYS 113 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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14I ILE* 4.9 15.2 - - - +
33I ILE* 4.3 7.6 - - + +
35I ILE* 3.7 32.3 - - + +
40I GLY 5.6 4.3 - - - +
42I ILE* 3.7 25.5 - - + +
110I ARG* 5.1 4.5 - - - +
111I LEU 3.5 0.4 + - - -
112I PRO* 1.3 75.1 - - + +
114I ASP* 1.3 66.8 + - - +
115I VAL* 3.2 8.9 + - + -
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Residues in contact with ASP 114 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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42I ILE* 5.2 2.3 - - - +
80I LYS* 2.6 37.5 + - - +
110I ARG* 3.9 28.2 - - - +
111I LEU 3.1 10.0 + - - +
112I PRO 2.8 4.2 + - - -
113I LYS* 1.3 79.5 - - - +
115I VAL* 1.3 63.3 + - - +
116I LEU* 5.1 2.9 - - - +
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Residues in contact with VAL 115 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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33I ILE* 3.8 25.1 - - + -
34I PRO* 3.9 25.6 - - + +
42I ILE* 4.3 16.2 - - + -
50I GLN* 4.3 3.8 - - - +
80I LYS* 3.9 12.8 - - - +
111I LEU* 3.5 27.9 + - + +
112I PRO 3.1 18.1 + - - +
113I LYS* 3.8 11.2 - - + +
114I ASP* 1.3 77.8 - - - +
116I LEU* 1.3 64.2 + - - +
117I ILE 3.7 16.6 - - - +
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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