Contacts of the strand formed by residues 136 - 139 (chain D) in PDB entry 4WLU
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 MET 136 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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94D ASP 2.8 20.0 + - - +
95D VAL* 3.4 4.7 - - + +
96D VAL* 2.8 32.7 + - - +
134D GLU 5.2 1.1 - - - +
135D ALA* 1.3 71.9 - - - +
137D ILE* 1.3 57.2 + - - +
138D CYS* 3.9 0.6 + - - -
165D LYS* 3.4 38.4 - - - +
167D PHE* 4.2 5.2 - - + -
262D LEU* 3.6 27.8 - - + -
266D MET* 3.8 38.4 - - + -
296D LYS 4.2 4.7 - - - +
297D LYS 3.8 6.3 - - - +
298D GLY* 3.6 35.0 - - - +
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Residues in contact with ILE 137 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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96D VAL* 3.6 14.8 - - + +
98D ILE* 4.2 23.8 - - + -
125D THR* 4.6 2.7 - - + -
128D CYS* 4.1 15.3 - - + -
132D CYS 4.7 1.8 - - - +
135D ALA* 3.7 20.6 - - + +
136D MET* 1.3 75.0 - - - +
138D CYS* 1.3 58.2 + - - +
139D VAL* 3.9 6.8 + - + +
151D THR* 4.1 21.1 - - + -
155D PHE* 3.6 34.5 - - + -
165D LYS* 2.8 14.8 + - + +
166D ILE* 3.6 11.6 - - + +
167D PHE* 2.8 33.1 + - - +
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Residues in contact with CYS 138 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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95D VAL* 4.2 15.7 - - - -
96D VAL 2.8 12.7 + - - +
97D VAL* 3.3 13.6 - - + +
98D ILE* 2.8 27.9 + - - +
136D MET 4.6 0.9 - - - -
137D ILE* 1.3 75.0 - - - +
139D VAL* 1.3 62.6 + - - +
140D ILE 3.7 0.5 + - - -
167D PHE* 3.3 6.7 - - - -
169D VAL* 3.9 17.0 - - + -
258D PHE* 3.8 18.4 - - + -
259D VAL* 4.8 5.6 - - + -
262D LEU* 3.6 30.5 - - - -
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Residues in contact with VAL 139 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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98D ILE* 4.2 14.4 - - + +
121D VAL* 4.7 6.3 - - + -
125D THR* 4.9 1.6 - - + -
137D ILE* 4.3 16.6 - - + +
138D CYS* 1.3 73.2 - - - +
140D ILE* 1.3 62.3 + - - +
141D ALA* 3.8 16.6 - - + +
144D VAL* 4.3 4.5 - - + +
147D THR* 3.5 31.6 - - - +
148D ILE* 3.7 21.3 - - + -
151D THR* 3.5 23.1 - - - +
167D PHE 2.8 9.1 + - - +
168D GLY* 3.8 2.3 - - - -
169D VAL* 3.1 23.3 + - - -
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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