Contacts of the strand formed by residues 176 - 179 (chain A) in PDB entry 1MUW
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 ARG 176 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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131A LYS 3.1 11.7 + - - +
132A THR* 3.3 10.1 + - - +
133A TYR* 2.8 32.2 + - - +
174A ASP 3.9 7.9 - - - +
175A ILE* 1.3 78.1 - - - +
177A PHE* 1.3 59.3 + - - +
209A GLU 4.3 9.3 + - - -
210A LEU* 3.6 20.9 - - + +
241A PHE* 3.6 60.6 + - + +
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Residues in contact with PHE 177 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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122A ILE* 3.8 20.2 - - + -
132A THR* 4.6 0.2 - - - -
133A TYR* 3.2 33.4 - + + +
134A VAL 6.0 0.4 - - - -
135A ALA* 6.0 2.0 - - + -
161A PHE* 5.0 11.2 - + + -
164A LEU* 3.7 45.3 - - + -
165A GLY* 4.2 3.6 - - - -
168A VAL* 3.8 33.2 - - + -
175A ILE* 5.1 3.8 - - + -
176A ARG* 1.3 75.3 - - - +
178A ALA* 1.3 62.3 + - - +
179A ILE* 4.3 0.4 - - + -
210A LEU* 2.9 14.4 + - + -
211A TYR* 3.3 37.3 - + + -
212A GLY 2.9 24.2 + - - -
241A PHE* 3.4 6.7 - - - -
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Residues in contact with ALA 178 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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132A THR* 3.6 23.3 - - + -
133A TYR 2.9 7.5 + - - -
134A VAL* 3.2 7.4 - - + +
135A ALA* 2.9 23.8 + - - -
177A PHE* 1.3 75.7 - - - +
179A ILE* 1.3 64.5 + - - +
180A GLU 3.7 0.7 + - - -
212A GLY 3.3 4.9 - - - +
213A VAL 3.8 21.5 - - - +
214A ASN* 3.9 10.3 - - + -
241A PHE* 4.3 6.7 - - + -
242A HIS* 4.8 0.9 - - + -
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Residues in contact with ILE 179 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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135A ALA 3.5 9.0 - - - +
137A GLY 6.1 0.7 - - - +
161A PHE* 3.9 32.1 - - + -
177A PHE* 5.8 0.4 - - + -
178A ALA* 1.3 73.6 - - - +
180A GLU* 1.3 67.2 + - - +
181A PRO* 3.3 8.5 - - + +
192A LEU* 4.3 15.9 - - + -
198A ALA* 4.0 22.4 - - + +
201A PHE* 3.9 34.1 - - + -
202A ILE* 4.0 17.3 - - + -
205A LEU* 5.2 2.2 - - + -
211A TYR* 5.4 4.9 - - + -
212A GLY 2.9 13.6 + - - +
213A VAL* 3.3 6.6 - - - +
214A ASN 2.9 17.7 + - - -
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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