Contacts of the strand formed by residues 122 - 125 (chain B) in PDB entry 2J86
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 ILE 122 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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101B VAL* 3.3 29.2 - - + -
102B VAL 3.4 29.4 - - - +
103B ILE* 3.6 23.1 - - + -
114B CYS* 3.7 30.1 - - + -
115B ALA 4.3 1.3 - - - +
121B ARG* 1.3 74.1 - - - +
123B TYR* 1.3 67.4 + - - +
132B GLN* 3.8 2.9 - - - +
133B ILE* 2.8 35.6 + - + +
134B THR* 3.5 16.4 + - + -
180B ILE* 5.3 1.1 - - + -
188B LEU* 5.6 1.3 - - + -
189B LEU 3.3 12.1 - - - +
190B LEU* 4.3 5.2 - - + -
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Residues in contact with TYR 123 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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121B ARG* 3.2 36.6 + - + -
122B ILE* 1.3 78.0 - - - +
124B ARG* 1.3 63.1 + - - +
125B TRP 4.2 0.2 - - - -
130B LEU* 5.2 3.6 - - - -
131B GLN* 3.3 11.9 - - - +
132B GLN* 3.4 37.5 + - + -
133B ILE* 4.0 3.1 - - - -
188B LEU* 3.7 8.8 - - - +
189B LEU* 3.0 59.1 + - + +
191B CYS* 4.1 8.7 - - - -
196B THR* 3.6 23.4 - - + +
201B ASP* 2.7 33.2 + - + -
204B ILE* 5.3 11.6 - - + +
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Residues in contact with ARG 124 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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123B TYR* 1.3 74.6 - - - +
125B TRP* 1.3 61.0 + - - +
126B ARG* 4.1 1.6 + - + +
129B GLN 3.5 3.3 - - - +
130B LEU* 4.6 0.4 - - - -
131B GLN* 2.7 40.8 + - + +
133B ILE* 3.5 22.2 - - + -
180B ILE* 5.0 5.6 - - + -
186B ASP* 6.5 0.2 - - + -
187B ARG 3.8 4.5 - - - -
188B LEU* 4.2 12.8 - - + -
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Residues in contact with TRP 125 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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123B TYR* 4.2 0.6 - - - +
124B ARG* 1.3 72.7 - - - +
126B ARG* 1.3 63.7 + - - +
127B LYS* 4.5 8.1 - - - -
128B ASP* 3.4 38.0 - - - +
129B GLN 3.3 20.5 - - - +
130B LEU* 4.1 4.3 - - - +
185B GLY 4.8 9.9 - - - -
186B ASP* 3.0 24.3 - - - +
187B ARG* 3.0 32.1 + - - +
205B SER* 3.1 41.8 + - - -
208B LEU* 4.5 17.9 - - + -
209B SER* 3.5 37.9 - - - -
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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