Contacts of the strand formed by residues 159 - 164 (chain A) in PDB entry 3P3W
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 GLN 159 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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131A GLU 2.6 14.2 + - - +
132A LYS* 3.8 12.3 - - + -
133A PHE 3.0 27.0 + - - +
157A ASN 4.3 0.4 + - - -
158A TRP* 1.3 67.8 - - - +
160A VAL* 1.3 61.3 + - - +
161A THR* 4.8 1.7 + - - -
186A GLU* 4.5 6.7 - - - +
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Residues in contact with VAL 160 (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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133A PHE* 3.5 34.8 - - + +
135A TYR* 3.9 21.8 - - + -
149A ILE* 3.6 26.7 - - + -
153A ALA* 4.4 12.8 - - + -
158A TRP* 3.1 24.3 + - + +
159A GLN* 1.3 74.9 - - - +
161A THR* 1.3 68.3 + - - +
162A ALA* 5.2 0.7 - - + +
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Residues in contact with THR 161 (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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133A PHE 3.6 6.1 + - - -
134A VAL* 3.6 6.5 - - + +
135A TYR 2.8 30.4 + - - +
159A GLN 4.8 1.7 + - - -
160A VAL* 1.3 80.2 + - - +
162A ALA* 1.3 62.0 + - - +
163A ARG* 3.7 25.1 - - + +
181A MET* 4.1 28.2 - - + -
184A ARG* 4.0 23.9 + - - +
186A GLU* 4.5 10.2 + - - -
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Residues in contact with ALA 162 (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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135A TYR* 3.4 14.8 - - + +
137A TYR* 3.9 17.9 - - + +
146A LEU* 4.4 8.3 - - + -
150A MET* 4.6 12.6 - - + -
160A VAL* 4.3 1.7 + - + +
161A THR* 1.3 74.9 - - - +
163A ARG* 1.3 79.6 + - - +
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Residues in contact with ARG 163 (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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134A VAL* 5.3 3.4 - - + -
135A TYR 3.2 6.5 + - - -
136A LEU* 3.7 23.8 - - + -
137A TYR* 3.0 32.1 + - - +
161A THR* 3.7 20.8 - - + +
162A ALA* 1.3 86.2 + - - +
164A SER* 1.3 62.4 + - - +
165A VAL* 3.6 8.8 + - + +
177A ILE* 3.6 38.0 + - + +
180A GLU* 2.8 33.7 + - - +
181A MET* 3.6 22.0 - - + +
150C MET* 6.5 0.2 - - - -
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Residues in contact with SER 164 (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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137A TYR* 3.4 27.8 + - - -
139A THR* 4.3 17.2 - - - +
163A ARG* 1.3 73.2 - - - +
165A VAL* 1.3 62.4 + - - +
166A GLY 3.7 4.9 + - - -
167A ASN* 3.9 20.4 + - - -
168A ILE* 3.3 18.4 - - - +
150C MET* 5.1 21.9 - - - +
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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