Contacts of the strand formed by residues 118 - 123 (chain B) in PDB entry 3AEV
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 TYR 118 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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109A LEU* 5.9 0.9 - - - +
113A LYS* 4.0 8.8 - - - -
165A GLU* 2.6 48.0 + - + +
166A ILE* 4.9 2.8 - - - +
169A ASN* 3.4 39.3 - - + +
170A TYR* 3.9 34.4 - + - -
95B ASP* 5.9 2.7 - - - -
112B LEU* 3.5 6.4 - - - +
115B GLU* 5.1 1.1 + - - -
116B GLY* 3.8 23.7 - - - -
117B GLU* 1.3 85.9 - - - +
119B LEU* 1.3 61.1 + - - +
172B ILE* 3.5 3.6 - - - -
173B GLY 2.9 27.6 + - - +
175B PRO* 4.0 17.5 - - + -
178B ILE* 3.4 15.2 - - + +
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Residues in contact with LEU 119 (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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169A ASN* 4.6 5.7 - - - +
95B ASP* 3.7 35.7 + - + +
98B LEU* 3.8 26.0 - - + -
99B ALA* 4.0 10.8 - - + +
102B ARG* 6.1 0.2 - - + -
104B PHE* 4.4 0.2 - - + -
112B LEU* 3.5 17.5 - - + +
118B TYR* 1.3 77.1 - - - +
120B GLU* 1.3 65.9 - - - +
121B ILE* 4.1 16.4 - - + -
170B ALA* 4.2 22.0 - - + -
171B ILE 3.5 4.7 - - - +
172B ILE* 3.5 21.8 - - + -
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Residues in contact with GLU 120 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
169A ASN* 5.6 2.1 - - - +
119B LEU* 1.3 76.1 - - - +
121B ILE* 1.3 67.3 + - - +
122B ILE* 3.5 28.8 + - + +
169B VAL 4.1 0.3 - - - +
170B ALA* 3.4 3.6 - - - +
171B ILE* 2.9 40.8 + - + +
178B ILE* 3.9 33.4 - - + +
182B LYS* 4.0 15.4 + - - -
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Residues in contact with ILE 121 (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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98B LEU* 4.4 19.1 - - + -
102B ARG* 4.1 20.4 - - + -
119B LEU* 4.1 29.8 - - + +
120B GLU* 1.3 82.9 - - - +
122B ILE* 1.3 65.5 - - - +
123B ASN* 4.0 4.2 + - - +
168B THR* 3.8 32.1 - - + +
169B VAL 4.0 3.1 - - - +
170B ALA* 4.4 7.6 - - + -
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Residues in contact with ILE 122 (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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120B GLU* 3.5 27.4 - - + +
121B ILE* 1.3 71.9 - - - +
123B ASN* 1.3 68.7 + - - +
124B LEU* 4.3 1.3 - - + +
127B ILE* 3.7 31.0 - - + -
168B THR* 3.2 8.0 - - - -
169B VAL* 3.0 52.7 + - + +
171B ILE* 4.4 14.8 - - + -
182B LYS* 3.6 31.4 - - + -
185B ILE* 5.5 3.8 - - + -
186B GLU* 5.6 1.8 - - + +
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Residues in contact with ASN 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 ILE* 4.0 6.0 + - - +
122B ILE* 1.3 77.6 - - - +
124B LEU* 1.3 67.8 + - - +
125B THR* 3.2 18.7 + - - +
126B ASP* 2.9 40.7 + - - +
127B ILE* 3.8 2.4 + - - +
167B LYS* 3.9 17.9 + - - +
168B THR* 4.0 16.2 - - - +
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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