Contacts of the strand formed by residues 156 - 163 (chain B) in PDB entry 1P57
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 156 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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16B ILE* 3.8 23.8 - - + +
19B GLY* 3.8 5.7 + - - +
20B ARG* 3.2 24.3 + - - +
21B ASP* 2.9 27.1 + - - +
22B THR* 4.7 1.1 - - - -
139B THR* 3.1 8.5 - - - -
140B GLY 3.0 36.8 + - - +
144B THR* 4.3 15.5 - - + +
152B ALA* 3.6 23.4 - - + +
154B VAL* 2.9 20.0 + - - +
155B LEU* 1.3 78.9 + - - +
157B GLU* 1.3 60.8 + - - +
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Residues in contact with GLU 157 (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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16B ILE* 4.5 1.1 - - - -
19B GLY* 3.2 3.2 - - - -
20B ARG* 3.0 43.0 + - + +
21B ASP 5.0 1.1 - - - +
22B THR* 2.6 30.8 + - - -
26B ARG* 2.9 33.5 + - - -
27B TRP* 3.0 15.3 + - - +
137B THR* 4.2 6.4 + - + +
138B VAL 3.4 5.8 - - - -
139B THR* 3.7 17.0 - - + -
156B GLN* 1.3 75.3 - - - +
158B ALA* 1.3 60.0 + - - +
159B ARG* 5.5 6.9 - - - +
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Residues in contact with ALA 158 (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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16B ILE* 3.7 20.0 - - + -
18B GLY 5.2 0.2 - - - -
19B GLY* 4.1 6.5 - - - -
137B THR* 3.2 4.7 - - - +
138B VAL* 2.9 43.1 + - + +
157B GLU* 1.3 75.7 - - - +
159B ARG* 1.3 63.8 + - - +
186B ILE* 3.5 27.6 - - - +
189B ASP 5.3 0.9 - - - +
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Residues in contact with ARG 159 (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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135B ILE* 3.6 34.7 - - + +
136B CYS 3.1 7.0 - - - +
137B THR* 3.7 21.5 - - + +
157B GLU* 5.5 6.1 - - - +
158B ALA* 1.3 75.5 - - - +
160B VAL* 1.3 67.3 + - - +
184B TYR* 3.0 22.5 + - - +
186B ILE* 4.1 6.9 + - - +
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Residues in contact with VAL 160 (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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134B LYS 3.9 0.2 - - - +
135B ILE* 4.1 3.8 - - - +
136B CYS* 2.9 28.7 + - - +
138B VAL* 4.1 22.0 - - + -
159B ARG* 1.3 81.8 - - - +
161B PRO* 1.3 69.0 - - + +
183B ALA* 4.2 7.0 - - + -
184B TYR* 3.8 28.0 - - + +
186B ILE* 3.8 28.7 - - + +
189B ASP* 4.9 2.2 - - - +
199B PHE* 3.7 26.4 - - + -
228B TYR* 4.7 3.8 - - - +
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Residues in contact with PRO 161 (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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133B GLY* 3.7 20.6 - - - +
134B LYS 3.2 7.2 - - - +
135B ILE* 3.9 11.2 - - + -
160B VAL* 1.3 84.8 - - - +
162B ILE* 1.3 68.3 - - - +
163B ILE* 5.4 1.3 - - + -
183B ALA* 3.0 5.6 - - - -
184B GLY* 2.9 80.9 + - + +
185B PRO* 6.2 0.7 - - + -
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Residues in contact with ILE 162 (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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130B LEU* 4.0 36.6 - - + -
131B VAL 3.5 26.0 - - - +
132B ASP* 3.8 21.9 - - - +
133B GLY* 2.9 22.8 + - - +
134B LYS* 3.0 17.0 + - + +
136B CYS* 4.2 17.9 - - - -
161B PRO* 1.3 77.1 - - - +
163B ILE* 1.3 67.4 + - - +
181B PHE* 4.3 11.9 - - + -
182B CYS 3.7 8.1 - - - +
183B ALA* 4.2 0.9 - - - +
199B PHE* 3.9 21.5 - - + -
201B CYS* 4.4 1.6 - - - -
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Residues in contact with ILE 163 (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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132B ASP* 3.9 7.5 - - - +
161B PRO* 3.8 3.8 - - + +
162B ILE* 1.3 82.2 - - - +
164B SER* 1.3 77.4 + - - +
165B ASN* 3.7 5.5 + - - +
167B VAL* 3.7 25.1 - - + -
168B CYS* 4.1 11.2 - - + +
173B PHE* 4.8 8.1 - - + -
181B PHE* 5.1 1.0 - - - +
182B CYS* 2.9 23.6 + - + +
183B ALA 4.1 0.4 - - - -
184B GLY 3.3 43.5 - - - +
185B PRO* 5.0 4.5 - - + -
225B PRO* 3.7 25.4 - - + -
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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