Contacts of the strand formed by residues 183 - 186 (chain A) in PDB entry 2KTY
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 183 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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138A LEU* 2.7 64.8 + - + -
157A LEU* 3.2 35.7 - - + -
161A ILE* 4.2 13.0 - - + -
178A ILE* 3.6 18.6 - - + +
179A LYS 4.0 1.1 - - - +
180A ALA 2.7 10.4 + - - +
182A ASN* 1.3 97.3 + - - +
184A LEU* 1.3 61.9 + - - +
193A VAL* 3.4 14.1 - - + -
194A TYR 3.9 2.9 - - - +
195A LEU* 3.4 17.7 - - + -
254A TRP* 4.7 8.3 - - + -
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Residues in contact with LEU 184 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
45A GLN* 5.7 0.4 - - + -
46A GLY* 5.3 3.6 - - - +
134A PHE* 5.0 10.8 - - + -
136A SER 3.4 4.3 - - - +
137A ASP* 2.9 46.7 - - + +
180A ALA 5.0 0.2 - - - +
181A SER 3.7 7.2 - - - +
182A ASN 3.4 12.8 - - - +
183A LEU* 1.3 80.8 - - - +
185A LEU* 1.3 67.7 + - - +
193A VAL* 3.6 0.5 - - - +
194A TYR* 2.7 45.8 + - - +
196A VAL* 3.2 37.7 - - + -
197A ASP* 3.8 0.7 - - - +
349A LEU* 3.6 20.6 - - + -
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Residues in contact with LEU 185 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
134A PHE* 3.3 20.6 - - - +
135A GLY 3.5 4.7 + - - -
136A SER* 3.3 25.9 + - - +
137A ASP 4.5 1.1 - - - +
138A LEU* 4.0 15.7 - - + +
141A ILE* 3.2 32.5 - - + -
184A LEU* 1.3 83.8 - - - +
186A ASN* 1.3 66.6 + - - +
189A ASN 4.2 5.8 - - - +
190A PRO* 4.7 13.0 - - + +
192A GLN 3.5 10.5 - - - +
193A VAL* 3.6 27.1 - - + +
194A TYR* 4.2 4.7 - - - -
339A LEU* 6.0 1.1 - - + -
341A LEU* 3.7 22.4 - - + +
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Residues in contact with ASN 186 (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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67A PRO* 6.0 0.6 - - - +
132A ASP* 5.1 2.3 - - - +
133A ARG* 3.5 13.6 + - - +
134A PHE* 3.5 4.4 - - - -
136A SER* 3.6 13.9 + - - -
185A LEU* 1.3 81.3 - - - +
187A TYR* 1.3 89.4 + - - +
188A LYS* 2.9 2.1 + - - -
189A ASN* 3.1 43.4 + - + +
192A GLN* 3.4 10.1 + - - -
194A TYR* 2.6 38.8 + - + +
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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