Contacts of the strand formed by residues 81 - 84 (chain A) 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 A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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80A GLN* 1.3 76.1 - - - +
82A ALA* 1.3 62.2 + - - +
83A ASP* 3.7 36.3 - - + +
113A TYR* 4.4 8.3 + - - -
114A GLN* 3.7 5.7 + - - +
115A GLY* 2.7 56.6 + - - +
116A GLY 3.2 20.4 - - - -
117A SER* 3.7 19.2 - - - -
120A PHE* 3.9 13.0 - + + -
141A GLU* 4.2 2.9 - - - -
143A ALA* 4.3 0.7 - - + -
168A VAL* 4.2 26.2 - - + -
170A ASP* 4.5 5.8 - - + -
194A SER* 3.7 18.3 + - - -
196A PHE* 4.1 12.3 - + - -
259A ILE* 3.6 27.6 - - + -
261A GLY* 3.5 27.1 - - - -
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Residues in contact with ALA 82 (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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80A GLN* 4.5 5.6 - - + -
81A TRP* 1.3 76.2 - - - +
83A ASP* 1.3 56.2 + - - +
112A ILE* 3.9 14.1 - - + -
113A TYR 3.3 5.4 - - - +
259A ILE 3.0 6.8 + - - +
260A ILE* 3.3 19.9 - - + +
261A GLY 2.7 28.6 + - - -
188B TYR* 3.8 36.1 - - + +
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Residues in contact with ASP 83 (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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81A TRP* 3.7 17.0 - - + -
82A ALA* 1.3 72.1 - - - +
84A GLY* 1.3 67.9 + - - +
85A SER* 5.2 0.2 + - - -
112A ILE* 3.3 4.5 - - - +
113A TYR* 2.9 59.7 + - + -
115A GLY 6.0 0.2 - - - +
141A GLU* 2.6 31.1 - - - +
170A ASP* 2.8 29.3 - - - +
261A GLY* 3.3 7.4 - - - +
263A GLY* 3.2 9.4 + - - -
185B PHE* 5.2 0.7 - - - -
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Residues in contact with GLY 84 (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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82A ALA 4.1 0.6 + - - -
83A ASP* 1.3 81.1 + - - +
85A SER* 1.3 66.1 + - - -
111A LEU 3.3 14.4 - - - -
112A ILE* 4.1 4.7 - - - +
113A TYR* 5.5 0.7 - - - -
244A LEU* 4.2 13.7 - - - -
260A ILE* 5.4 0.2 - - - +
261A GLY 2.8 18.8 + - - -
262A SER 3.7 5.4 - - - -
263A GLY* 3.1 18.0 - - - -
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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