Contacts of the strand formed by residues 81 - 84 (chain D) in PDB entry 3LZK
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 TRP 81 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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80D GLN* 1.3 76.2 - - - +
82D ALA* 1.3 67.1 + - - +
83D ASP* 3.5 32.8 - - + -
113D TYR* 4.4 3.2 + - - -
114D GLN* 3.8 7.0 + - - +
115D GLY* 2.8 51.7 + - - +
116D GLY 3.2 22.0 - - - +
117D SER* 3.6 19.3 - - - -
120D PHE* 3.9 11.4 - + + -
141D GLU* 4.1 3.4 - - - -
143D ALA* 4.3 1.1 - - + -
168D VAL* 4.0 26.0 - - + -
170D ASP* 4.1 17.2 + - - -
194D SER* 3.7 15.6 + - - -
196D PHE* 4.1 11.7 - + - -
259D ILE* 3.4 35.7 - - + -
261D GLY* 3.5 24.9 - - - -
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Residues in contact with ALA 82 (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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188C TYR* 3.8 36.1 - - + +
80D GLN* 4.3 5.6 - - + +
81D TRP* 1.3 76.0 - - - +
83D ASP* 1.3 55.3 + - - +
112D ILE* 3.9 13.9 - - + -
113D TYR 3.3 5.4 - - - +
259D ILE 3.0 6.8 + - - +
260D ILE* 3.2 20.8 - - + +
261D GLY 2.8 27.9 + - - -
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Residues in contact with ASP 83 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
185C PHE* 4.6 0.7 - - - -
81D TRP* 3.5 21.6 - - + -
82D ALA* 1.3 73.6 - - - +
84D GLY* 1.3 68.7 + - - +
112D ILE* 3.4 4.1 - - - +
113D TYR* 3.0 56.0 + - + -
139D GLU* 5.1 0.2 - - - +
141D GLU* 2.5 40.1 - - - +
170D ASP* 3.2 14.4 - - - +
261D GLY* 3.2 17.4 - - - +
263D GLY* 3.5 1.4 + - - -
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Residues in contact with GLY 84 (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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185C PHE* 5.1 0.7 - - - -
82D ALA 4.2 0.2 + - - -
83D ASP* 1.3 81.8 - - - +
85D SER* 1.3 63.7 + - - -
111D LEU 3.2 15.9 - - - -
112D ILE* 4.1 5.8 - - - +
113D TYR* 5.6 0.2 - - - -
244D LEU* 4.6 10.8 - - - -
260D ILE* 5.5 0.8 - - - +
261D GLY 2.8 17.6 + - - -
262D SER 3.6 5.8 - - - -
263D GLY* 2.9 19.2 - - - -
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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