Contacts of the helix formed by residues 161 - 167 (chain B) in PDB entry 6CM9
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 PHE 161 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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123B CYS* 3.4 33.9 - - + -
126B LEU* 3.8 22.0 - - + -
127B ARG* 3.8 43.5 - - + -
130B LEU* 4.0 7.2 - - + -
145B VAL* 4.1 22.2 - - + -
148B LEU* 3.8 16.8 - - + -
156B VAL* 3.3 31.6 + - + -
157B GLU* 4.8 0.2 - - - +
159B GLN* 4.3 4.5 - - + -
160B GLY* 1.3 80.5 - - - +
162B LEU* 1.3 55.0 + - - +
163B ASP 3.2 2.7 - - - -
164B THR* 2.6 30.8 + - + +
165B LEU* 2.7 24.2 + - - +
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Residues in contact with LEU 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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149B HIS* 5.1 2.7 - - + -
156B VAL* 4.0 22.4 - - + -
157B GLU* 3.7 26.7 - - + +
160B GLY 3.6 0.8 - - - -
161B PHE* 1.3 78.5 - - - +
163B ASP* 1.3 56.9 + - - +
165B LEU* 3.8 3.5 - - + +
166B LYS* 2.9 35.9 + - + +
184B LEU* 3.8 28.0 - - + -
187B ILE* 3.8 36.8 - - + -
191B HIS* 4.8 11.2 - - + -
197B LEU* 4.2 19.7 - - + -
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Residues in contact with ASP 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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160B GLY* 4.5 8.2 + - - +
161B PHE* 3.2 0.6 - - - +
162B LEU* 1.3 78.6 - - - +
164B THR* 1.3 62.9 + - + +
166B LYS* 3.9 5.2 - - - +
167B ASP* 3.0 38.6 + - - +
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Residues in contact with THR 164 (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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127B ARG* 5.7 7.4 - - + +
130B LEU* 3.3 24.1 - - + +
131B LYS* 4.2 31.4 + - + +
160B GLY 4.0 13.7 - - - +
161B PHE* 2.6 31.5 + - + -
163B ASP* 1.3 77.4 - - + +
165B LEU* 1.3 60.6 + - - +
167B ASP* 3.7 3.5 + - - +
168B LEU* 3.4 25.6 + - - +
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Residues in contact with LEU 165 (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* 5.0 1.6 - - + -
142B ALA* 4.0 25.8 - - + +
145B VAL* 4.2 15.0 - - + -
161B PHE 2.7 19.5 + - - +
162B LEU* 3.8 6.7 - - + +
164B THR* 1.3 74.2 - - - +
166B LYS* 1.3 57.8 + - - +
167B ASP 3.1 0.9 - - - -
168B LEU* 3.0 43.3 + - + +
169B ILE* 3.8 8.1 + - - +
180B ALA* 4.3 13.2 - - + +
183B ALA* 4.3 3.6 - - + -
184B LEU* 3.8 31.6 - - + +
187B ILE* 3.7 29.4 - - + -
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Residues in contact with LYS 166 (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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162B LEU* 2.9 21.6 + - + +
163B ASP* 4.3 6.1 - - - +
164B THR 3.5 0.2 - - - -
165B LEU* 1.3 73.7 - - - +
167B ASP* 1.3 63.6 + - - +
169B ILE* 3.9 22.0 - - + +
170B SER* 4.1 6.9 + - - -
184B LEU* 3.9 24.5 - - + +
197B LEU* 3.1 52.1 + - + +
198B ASP 4.5 0.2 + - - -
199B LEU* 3.5 38.2 - - + +
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Residues in contact with ASP 167 (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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131B LYS* 4.2 18.3 + - - +
163B ASP* 3.0 34.0 + - - +
164B THR* 4.0 5.8 - - - +
165B LEU 3.1 1.0 - - - -
166B LYS* 1.3 78.9 - - - +
168B LEU* 1.3 65.9 + - - +
169B ILE 3.2 2.0 - - - -
170B SER* 3.2 27.6 + - - +
171B ASP* 3.9 2.8 + - - +
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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