Contacts of the strand formed by residues 174 - 180 (chain E) in PDB entry 3TKR
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 LEU 174 (chain E).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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42E ALA* 3.8 13.2 - - + -
43E LYS 3.8 26.0 - - - +
44E ILE* 3.5 8.6 - - + +
45E SER* 2.8 31.4 + - - -
46E LYS 2.9 16.7 + - - +
48E ALA* 3.9 10.9 - - + +
49E PRO* 5.2 3.1 - - + -
151E TYR* 5.5 0.7 - - + -
166E PHE* 3.8 21.8 - - + -
167E ILE 3.5 16.8 - - - +
168E ILE* 4.0 11.7 - - + +
172E GLY 3.8 2.0 + - - -
173E ILE* 1.3 71.8 - - - +
175E ARG* 1.3 60.0 + - - +
176E GLN 3.5 15.9 - - - +
177E ILE* 3.7 26.7 - - + -
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Residues in contact with ARG 175 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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44E ILE* 4.0 6.0 - - - +
73E TYR* 3.4 15.0 + - + +
167E ILE* 2.8 14.7 + - + +
169E ASP* 3.2 37.0 + - + +
173E ILE* 3.4 22.8 - - - +
174E LEU* 1.3 76.9 - - - +
176E GLN* 1.3 61.1 + - + +
198E PHE* 3.3 39.4 - - + -
201E THR* 4.7 1.2 + - - -
202E ASP* 3.0 27.7 + - - -
181J ASP* 2.9 59.9 + - - +
183J PRO* 3.8 15.2 - - - +
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Residues in contact with GLN 176 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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44E ILE* 4.0 2.1 - - - +
165E LEU* 4.2 4.7 - - - +
166E PHE* 3.4 5.0 - - - -
167E ILE* 3.0 50.3 + - + +
174E LEU* 3.5 3.6 - - - +
175E ARG* 1.3 82.2 - - - +
177E ILE* 1.3 88.6 + - - +
178E THR* 2.7 30.9 + - - -
194E LEU* 3.8 19.8 - - + +
198E PHE* 3.9 15.0 - - + -
178J THR* 3.6 10.9 - - - +
179J LEU 3.4 10.1 + - - +
180J ASN* 3.0 25.7 + - - +
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Residues in contact with ILE 177 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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42E ALA* 4.2 14.8 - - + +
44E ILE* 3.9 16.6 - - + +
165E LEU 3.5 2.9 - - - -
166E PHE* 3.7 24.5 - - + -
174E LEU* 3.7 22.4 - - + -
176E GLN* 1.3 83.4 + - - +
178E THR* 1.3 65.0 + - - +
179E LEU* 3.7 34.1 - - + -
177J ILE 3.9 0.5 - - - +
178J THR* 3.6 1.4 - - - -
179J LEU* 2.8 60.3 + - + -
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Residues in contact with THR 178 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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163E ARG 3.4 2.3 - - - +
164E GLY* 3.4 1.4 - - - -
165E LEU* 2.7 52.8 + - - +
176E GLN* 2.7 31.0 + - - -
177E ILE* 1.3 72.2 - - - +
179E LEU* 1.3 61.6 + - - +
180E ASN* 3.8 8.7 - - - +
186E ARG* 4.7 12.2 - - + -
194E LEU* 4.8 4.2 - - - +
176J GLN* 3.6 19.5 - - - +
177J ILE 3.6 2.2 - - - -
178J THR* 4.7 6.3 - - + +
190J GLU* 6.2 0.2 - - - +
194J LEU* 6.0 1.1 - - + -
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Residues in contact with LEU 179 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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38E HIS* 6.3 2.7 - - + +
151E TYR 6.0 0.2 - - - +
152E GLY 4.9 10.5 - - - +
153E VAL* 3.8 17.3 - - + -
162E LEU* 4.2 10.3 - - + -
163E ARG 3.4 2.0 - - - -
164E GLY* 3.5 24.0 - - - -
166E PHE* 4.1 4.3 - - + -
177E ILE* 3.7 26.7 - - + -
178E THR* 1.3 74.1 - - - +
180E ASN* 1.3 63.5 + - - +
44J ILE* 3.3 18.0 - - + +
176J GLN* 3.3 6.4 + - - -
177J ILE* 2.8 60.4 + - + +
179J LEU* 6.1 0.7 - - + -
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Residues in contact with ASN 180 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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162E LEU* 3.6 6.1 - - - +
163E ARG* 2.8 39.4 + - + -
178E THR* 3.8 7.3 - - - +
179E LEU* 1.3 73.9 - - - +
181E ASP* 1.3 64.2 + - - +
184E VAL* 3.0 29.3 + - - +
185E GLY 3.4 18.8 + - - -
186E ARG* 3.8 13.2 - - - +
44J ILE* 4.3 4.0 - - - -
175J ARG 4.2 2.2 - - - -
176J GLN* 3.0 29.9 + - - -
194J LEU* 3.7 16.1 - - - +
198J PHE* 4.7 3.1 - - + -
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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