Contacts of the strand formed by residues 165 - 168 (chain C) in PDB entry 2PI8
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 165 (chain C).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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103C THR* 3.6 12.3 - - - -
104C PRO 3.3 13.9 - - - -
159C MSE 4.1 12.2 - - - +
164C SER* 1.3 81.5 + - - +
166C TYR* 1.3 62.9 + - - -
167C ILE* 3.8 1.2 + - - +
177C PHE* 4.0 3.4 - - - -
178C PHE* 3.0 32.9 + - - +
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Residues in contact with TYR 166 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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103C THR* 3.7 16.1 - - + +
104C PRO 3.0 6.5 + - - +
105C VAL* 3.4 8.1 - - + -
106C ILE 2.9 26.9 + - - +
165C GLY* 1.3 72.2 - - - -
167C ILE* 1.3 63.8 + - - +
168C ASP 3.9 0.4 + - - -
175C LEU* 3.7 48.0 - - + -
176C ASN 3.6 0.9 - - - -
177C PHE* 3.7 17.5 - + + -
241C PHE* 4.6 9.9 - + - -
242C ALA 2.8 31.3 + - - -
243C PRO* 3.5 12.5 - - - +
244C VAL* 3.5 25.4 + - + +
313C ILE* 3.6 29.0 - - + +
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Residues in contact with ILE 167 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
106C ILE* 3.4 21.8 - - + +
108C ALA* 4.1 13.7 - - + -
120C ILE* 3.8 24.2 - - + -
148C ALA* 4.7 1.6 - - + -
159C MSE 4.0 13.5 - - - -
165C GLY 4.3 0.7 - - - +
166C TYR* 1.3 79.9 - - - +
168C ASP* 1.3 61.5 + - - +
169C PHE* 3.8 39.3 + - + -
175C LEU* 3.5 5.0 - - - -
176C ASN 2.8 34.2 + - - +
178C PHE* 3.6 38.6 - - + -
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Residues in contact with ASP 168 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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105C VAL* 4.1 18.2 - - + -
106C ILE 2.8 13.1 + - - +
107C GLN* 3.1 22.2 + - + +
108C ALA 3.0 21.6 + - - -
166C TYR 3.9 1.0 + - - -
167C ILE* 1.3 70.9 - - - +
169C PHE* 1.3 61.9 + - - +
170C GLY 3.5 8.2 + - - -
173C SER 5.0 4.7 - - - +
175C LEU* 3.8 22.4 - - + +
168D ASP* 2.8 38.7 - - - +
170D GLY* 4.4 9.1 - - - -
175D LEU* 5.5 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