Contacts of the helix formed by residues 118 - 123 (chain B) in PDB entry 5W5T
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 ASN 118 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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17B TYR* 2.7 22.4 + - + +
66B ALA* 4.9 0.4 - - - +
96B LEU* 3.6 25.0 - - + +
97B PRO 5.6 0.2 - - - +
98B ALA 5.5 1.0 - - - +
108B TYR* 3.1 28.8 + - - -
114B ALA 2.5 24.2 + - - -
115B VAL 2.7 14.1 + - - +
117B GLN* 1.3 76.8 - - - +
119B ILE* 1.3 62.1 + - - +
120B ASP* 3.2 6.5 - - - -
121B ILE* 3.1 26.1 + - + +
122B ILE* 3.2 16.4 + - - +
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Residues in contact with ILE 119 (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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115B VAL* 4.0 3.4 - - + +
116B TYR* 3.3 44.0 + - + +
117B GLN 3.5 0.8 - - - -
118B ASN* 1.3 78.4 - - - +
120B ASP* 1.3 58.2 + - - +
122B ILE* 3.1 7.9 + - - +
123B GLU* 2.9 59.0 + - - +
218B MET* 3.9 29.6 - - + +
221B LEU* 5.2 1.8 - - + -
222B ARG* 3.8 32.3 - - + +
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Residues in contact with ASP 120 (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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117B GLN 3.5 15.9 - - - +
119B ILE* 1.3 76.2 + - - +
121B ILE* 1.3 77.4 + - - +
123B GLU* 4.8 5.2 - - - -
124B PRO* 3.1 23.9 - - - +
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Residues in contact with ILE 121 (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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15B MET* 4.8 5.4 - - + -
94B ASP* 3.8 33.9 - - + +
96B LEU* 4.2 20.6 - - + -
117B GLN 5.0 0.4 - - - +
118B ASN* 3.1 31.9 + - + +
120B ASP* 1.3 97.6 + - - +
122B ILE* 1.3 67.9 + - + +
124B PRO* 3.2 11.4 - - - +
125B TYR* 3.4 19.6 - - + -
72C HIS* 4.7 12.3 - - + +
76C ARG* 4.3 22.6 + - - +
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Residues in contact with ILE 122 (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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15B MET* 4.1 17.0 - - + -
17B TYR* 3.9 17.3 - - + -
115B VAL* 3.8 28.9 - - + -
118B ASN 3.3 15.9 - - - +
119B ILE* 3.1 7.7 + - - +
121B ILE* 1.3 78.3 - - + +
123B GLU* 1.3 67.6 + - - +
125B TYR* 3.0 25.6 + - - +
126B ALA 3.4 5.9 + - - -
127B PRO* 3.7 8.5 - - + +
130B MET* 3.8 35.4 - - + -
214B THR* 4.5 9.9 - - + -
218B MET* 4.3 11.9 - - + -
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Residues in contact with GLU 123 (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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119B ILE* 2.9 35.9 + - + +
120B ASP* 4.8 4.1 - - - -
122B ILE* 1.3 73.8 - - - +
124B PRO* 1.4 68.1 - - + +
126B ALA* 2.9 21.9 + - - +
127B PRO* 5.4 0.2 - - - -
214B THR* 6.5 0.4 - - - -
218B MET* 4.6 14.0 - - + +
222B ARG* 3.1 25.1 + - - -
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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