Contacts of the strand formed by residues 136 - 142 (chain B) in PDB entry 2AOT
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 TRP 136 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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55B LYS* 3.5 34.3 - - + +
56B ILE 3.4 36.6 - - - -
57B LEU* 3.7 17.2 - - + +
84B ASN* 4.2 4.0 - - - -
86B GLU* 3.6 38.6 - - + -
123B TYR* 3.6 25.5 + - - -
134B GLN* 3.8 31.2 - - - +
135B LYS* 1.3 81.3 - - - +
137B ASP* 1.3 63.1 + - - +
138B PHE 4.3 1.1 - - - +
139B ILE* 3.7 21.8 - - + -
161B LEU* 2.7 35.2 + - + +
162B LEU* 3.6 3.3 - - - +
163B GLY* 2.8 23.6 + - - -
166B ALA* 3.3 5.0 - - - +
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Residues in contact with ASP 137 (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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47B ILE* 3.5 24.8 - - + +
51B LYS* 2.7 35.3 + - - +
53B GLU 3.7 5.7 - - - +
54B ILE* 3.5 16.2 - - + -
55B LYS* 2.7 42.9 + - - +
135B LYS 5.8 0.2 - - - -
136B TRP* 1.3 77.0 - - - +
138B PHE* 1.3 61.7 + - - +
162B LEU* 5.2 0.2 - - - -
163B GLY* 5.1 3.6 - - - -
166B ALA* 3.2 26.9 - - - +
167B LYS 3.4 3.1 + - - -
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Residues in contact with PHE 138 (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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40B LEU* 4.0 17.7 - - + -
43B ILE* 4.4 7.0 - - + -
44B ILE* 3.9 20.0 - - + -
47B ILE* 3.8 16.6 - - + -
55B LYS 3.2 3.7 + - - +
56B ILE* 3.3 18.0 - - + +
57B LEU 2.9 24.4 + - - +
70B ILE* 3.8 25.4 - - + -
74B VAL* 5.6 0.4 - - + -
136B TRP* 3.5 0.7 - - - +
137B ASP* 1.3 81.6 - - - +
139B ILE* 1.3 64.8 + - - +
140B HIS* 3.8 30.7 - + + -
167B LYS* 3.3 33.4 - - + -
169B LEU* 3.8 30.7 - - + -
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Residues in contact with ILE 139 (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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57B LEU* 3.3 19.5 - - + +
59B ILE* 4.3 11.2 - - + -
136B TRP* 3.7 18.6 - - + -
138B PHE* 1.3 81.7 - - - +
140B HIS* 1.3 67.5 + - - +
141B MET* 4.8 1.1 - - + -
158B PHE* 3.4 46.4 - - + +
161B LEU* 3.9 17.0 - - + -
162B LEU* 3.7 17.0 - - + -
167B LYS 3.1 5.9 + - - +
168B MET* 3.1 23.6 - - + +
169B LEU* 2.8 24.4 + - - +
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Residues in contact with HIS 140 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
56B ILE* 4.1 15.8 - - + +
57B LEU 3.0 9.6 + - - -
58B SER* 3.2 34.6 - - - -
59B ILE* 2.8 35.3 + - - +
61B GLY* 5.4 0.7 - - - -
67B ASP* 3.3 23.1 + - - +
70B ILE* 3.5 28.6 - - + +
85B ASN* 5.0 0.8 + - - -
138B PHE* 3.8 20.2 - + + -
139B ILE* 1.3 75.6 - - - +
141B MET* 1.3 60.8 + - - +
142B ILE* 3.9 19.2 + - + +
169B LEU* 3.2 21.5 - - + +
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Residues in contact with MET 141 (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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59B ILE* 3.7 35.4 - - + -
120B SER* 4.9 0.4 - - - -
139B ILE* 4.8 4.0 - - + -
140B HIS* 1.3 78.3 - - - +
142B ILE* 1.3 61.9 + - - +
143B GLN 3.7 1.2 + - - -
144B MET* 3.8 19.6 + - + +
145B LEU* 3.8 21.0 + - + +
154B THR* 3.3 34.8 - - + +
155B LEU* 4.9 2.9 - - - -
158B PHE* 4.0 12.6 - - + -
168B MET* 4.4 13.7 - - - +
169B LEU 2.9 7.4 + - - -
170B ILE* 3.5 32.9 - - + +
171B ILE 3.2 19.2 + - - +
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Residues in contact with ILE 142 (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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32B MET* 3.2 29.4 - - + -
59B ILE 4.1 3.4 + - - -
66B ILE* 3.4 28.5 - - + -
67B ASP* 5.1 1.1 - - - +
70B ILE* 3.8 19.5 - - + -
140B HIS* 3.9 22.1 + - + +
141B MET* 1.3 72.9 - - - +
143B GLN* 1.3 75.0 + - + +
144B MET* 3.2 7.5 + - - +
169B LEU* 4.7 5.8 - - + +
171B ILE* 4.0 23.1 - - + +
501B SAH 3.0 46.6 + - - +
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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