Contacts of the strand formed by residues 172 - 176 (chain B) in PDB entry 6DU2
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 172 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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95B ILE* 3.9 23.6 - - + -
97B LEU* 6.4 0.2 - - + -
101B LEU* 3.9 16.8 - - + -
139B LEU* 3.7 31.0 - - + -
148B CYS* 3.5 5.8 - - + -
149B VAL 3.8 6.3 - - - -
150B LEU* 3.4 48.2 - - + -
163B ALA* 4.8 12.8 - - + -
166B LEU* 5.3 4.5 - - + -
167B ASP* 2.8 41.1 + - + +
170B GLY* 4.0 7.1 - - - +
171B ALA* 1.3 70.7 - - - +
173B ARG* 1.3 62.5 + - - +
174B ALA 3.9 9.6 - - - +
175B ARG* 4.6 13.2 + - + +
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Residues in contact with ARG 173 (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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84B LYS* 6.0 1.6 - - + -
86B GLN* 4.5 9.8 - - - +
87B ASP* 3.0 40.7 + - - +
90B LYS* 3.5 10.9 - - - +
143B GLY* 3.0 28.7 + - - -
146B PHE 2.9 25.0 + - - -
147B GLU* 4.3 13.7 - - + +
148B CYS 2.8 21.1 + - - +
149B VAL* 4.9 1.8 - - + -
170B GLY 4.8 5.8 + - - +
171B ALA* 2.9 21.0 + - - +
172B PHE* 1.3 72.8 - - - +
174B ALA* 1.3 62.5 + - + +
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Residues in contact with ALA 174 (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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80B LEU* 3.7 30.1 - - + -
81B PRO* 5.8 4.7 - - + -
148B CYS 4.0 2.6 + - - -
149B VAL* 3.4 11.1 - - + +
150B LEU* 2.9 24.4 + - - +
172B PHE* 3.3 3.5 - - - +
173B ARG* 1.3 80.8 - - + +
175B ARG* 1.3 69.4 + - - +
176B LEU* 5.4 0.4 - - + -
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Residues in contact with ARG 175 (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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150B LEU* 3.3 20.2 - - + -
160B ASP* 2.6 47.3 + - - -
163B ALA* 3.4 23.0 + - - +
164B ASP* 2.7 40.6 + - - +
167B ASP* 5.0 8.7 + - - +
172B PHE* 4.6 12.0 + - + +
174B ALA* 1.3 80.2 - - - +
176B LEU* 1.3 70.3 + - - +
177B PHE* 3.7 25.5 - - + -
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Residues in contact with LEU 176 (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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79B LEU* 4.1 28.9 - - + +
80B LEU* 3.8 27.1 - - + -
149B VAL* 4.0 10.1 - - + -
150B LEU 2.6 11.2 + - - +
151B PHE* 3.4 28.4 - - + -
152B THR* 2.9 29.5 + - - +
174B ALA* 5.7 0.4 - - + -
175B ARG* 1.3 83.1 - - - +
177B PHE* 1.3 65.6 + - - +
180B SER* 3.6 19.1 - - - +
195B LEU* 4.0 21.1 - - + -
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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