Contacts of the strand formed by residues 159 - 162 (chain A) in PDB entry 4WTM
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 LEU 159 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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4A TYR* 4.5 15.0 - - + +
6A TRP* 4.3 14.8 - - + -
11A ILE* 3.9 18.4 - - + -
45A ALA* 3.9 29.8 - - + +
48A ARG* 3.9 12.6 - - + +
49A ALA* 4.2 10.5 - - - -
52A VAL* 3.8 28.9 - - + -
138A ILE* 4.2 14.6 - - + -
139A MET 3.5 4.3 - - - +
158A ARG* 1.3 80.6 + - - +
160A ILE* 1.3 68.5 + - - +
161A VAL* 4.2 5.0 + - + +
225A ASP* 4.4 7.3 - - - +
282A SER* 4.4 11.1 + - - -
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Residues in contact with ILE 160 (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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137A THR 3.6 1.4 - - - +
138A ILE* 3.3 4.0 - - - +
139A MET* 2.7 47.0 + - + +
140A ALA 4.7 0.7 - - - +
141A LYS* 3.9 20.9 - - + +
158A ARG* 3.9 21.1 - - + -
159A LEU* 1.3 82.5 - - - +
161A VAL* 1.3 63.0 + - - +
162A TYR* 4.1 7.9 - - + -
282A SER* 3.5 8.7 - - - +
605A UDP 4.6 1.1 - - - +
2T A 3.3 74.7 - - + +
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Residues in contact with VAL 161 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
4A TYR* 5.1 7.4 - - + +
136A THR* 3.4 29.8 - - + +
137A THR 3.3 5.2 - - - +
138A ILE* 4.3 12.6 - - + -
159A LEU* 4.2 6.0 + - + +
160A ILE* 1.3 80.2 - - - +
162A TYR* 1.3 63.7 + - - +
266A MET* 3.9 25.1 - - + -
277A ARG* 4.0 14.1 - - - +
281A ALA* 3.6 31.4 - - + +
282A SER 3.0 21.6 + - - +
283A GLY* 3.4 7.8 - - - -
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Residues in contact with TYR 162 (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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14A CYS* 6.1 0.7 - - - -
97A ALA* 4.5 13.2 - - + +
136A THR* 4.0 5.4 - - - -
137A THR* 2.9 54.7 + - - +
139A MET* 3.8 35.3 - - + +
160A ILE* 4.1 8.5 - - + -
161A VAL* 1.3 79.1 - - - +
163A PRO* 1.3 84.5 - - + +
164A ASP* 5.8 0.9 - - - -
168A ARG* 3.6 16.2 - - - -
283A GLY 4.1 0.9 - - - +
284A VAL* 5.3 0.4 - - - -
2T A 3.3 50.6 - + - +
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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