Contacts of the strand formed by residues 133 - 136 (chain F) in PDB entry 2CNW
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 VAL 133 (chain F).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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123F GLY* 4.0 8.5 - - - +
126F TYR* 3.9 25.8 - - + -
127F GLN* 4.1 9.6 - - + +
131F LYS* 3.7 15.7 + - + +
132F LYS* 1.3 76.2 - - - +
134F MET* 1.3 63.3 + - - +
135F PHE* 3.8 17.7 - - + -
158F ILE* 3.3 25.9 - - + +
159F PRO* 3.5 4.7 - - - +
185F TYR* 3.2 15.2 - - - -
187F LEU* 3.4 9.2 - - + +
189F PHE* 3.8 31.0 - - + -
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Residues in contact with MET 134 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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133F VAL* 1.3 74.9 - - - +
135F PHE* 1.3 76.4 + - - +
158F ILE* 3.9 0.4 - - - -
159F PRO* 3.6 24.7 - - + +
161F ILE* 3.6 24.0 - - + -
176F ALA 2.6 37.0 - - - +
179F ALA* 3.8 6.5 - - + +
180F MET* 3.3 24.5 - - + +
183F ARG* 5.5 6.1 - - - -
185F TYR* 4.0 15.0 - - + -
187F LEU 2.7 12.6 + - - +
188F LEU* 3.4 21.6 - - + -
189F PHE 3.1 22.9 + - - -
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Residues in contact with PHE 135 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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119F ILE* 3.1 42.4 - - + -
120F ALA* 3.9 10.1 - - - -
123F GLY* 3.9 5.6 - - - -
133F VAL* 3.8 20.0 - - + -
134F MET* 1.3 85.1 - - - +
136F CYS* 1.3 59.9 + - - +
149F LEU* 3.8 37.7 - - + -
152F TRP* 4.8 0.4 - - + -
153F GLY* 4.6 7.4 - - - -
156F LEU* 4.5 6.1 - - + -
158F ILE* 3.8 32.3 - - + -
159F PRO 2.9 12.0 + - - +
160F VAL* 3.5 15.7 - - + -
161F ILE* 2.8 33.0 + - - +
188F LEU* 3.8 2.9 - - - -
189F PHE* 3.5 7.9 - + + +
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Residues in contact with CYS 136 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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135F PHE* 1.3 72.8 - - - +
137F ALA* 1.3 60.8 + - - +
138F GLY* 3.0 9.0 + - - -
149F LEU* 3.6 3.4 - - - +
161F ILE 3.6 8.3 - - - -
172F LEU* 4.0 15.5 - - - -
173F ALA* 3.8 21.5 - - - -
176F ALA* 3.6 31.2 - - + -
188F LEU* 3.9 1.1 - - + +
189F PHE 2.8 14.9 + - - +
190F VAL* 4.0 20.0 - - + -
191F ASP* 2.9 31.2 + - - +
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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