Contacts of the strand formed by residues 161 - 166 (chain A) in PDB entry 4Y6O
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 161 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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78A ARG* 3.2 12.9 + - - -
79A VAL 3.7 6.7 - - - +
81A CYS* 3.9 24.0 - - + -
152A MET* 4.1 5.2 - - + +
155A LEU* 3.4 12.4 + - + -
156A LYS* 3.7 27.5 + - + +
159A GLY 3.6 1.8 - - - -
160A LEU* 1.3 74.9 - - - +
162A LEU* 1.3 63.6 + - - +
163A ARG* 3.5 27.4 - - - +
164A CYS* 4.3 4.7 - - + +
178A LEU* 3.8 36.6 - - + -
182A ASP* 4.3 23.9 - - + +
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Residues in contact with LEU 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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78A ARG* 3.8 38.7 + - + +
79A VAL 2.8 16.0 + - - +
80A ILE* 3.8 19.5 - - + -
160A LEU 3.4 2.8 + - - -
161A LEU* 1.3 74.3 - - - +
163A ARG* 1.3 82.2 + - - +
181A GLU 5.0 0.5 - - - +
182A ASP* 4.8 2.5 - - - +
250A ASP* 3.4 43.3 - - - +
253A LYS 3.6 15.0 - - - +
254A VAL* 4.2 4.3 - - + -
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Residues in contact with ARG 163 (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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79A VAL 3.7 0.6 + - - -
80A ILE* 3.3 9.3 - - + +
81A CYS 2.9 23.6 + - - -
161A LEU* 3.4 11.5 - - - +
162A LEU* 1.3 90.0 + - - +
164A CYS* 1.3 63.3 + - - +
165A TYR* 3.7 20.4 - - + -
181A GLU* 2.7 45.5 + - - +
182A ASP 3.4 16.6 - - - +
184A VAL* 3.9 13.0 - - + -
242A ARG* 3.7 13.3 - - - +
246A CYS* 4.0 17.1 - - - +
249A SER* 5.7 1.4 - - - -
250A ASP* 2.8 46.5 + - - +
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Residues in contact with CYS 164 (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 CYS* 3.4 7.9 - - + -
83A VAL* 4.0 17.0 - - - -
152A MET* 3.6 36.8 - - - -
161A LEU* 4.3 4.2 - - + +
163A ARG* 1.3 72.3 - - - +
165A TYR* 1.3 65.5 + - - +
166A THR* 4.5 0.4 - - - -
173A GLU* 4.2 3.4 - - - -
178A LEU* 3.8 20.4 - - + -
182A ASP 2.8 10.9 + - - +
183A LEU* 3.4 20.5 - - + +
184A VAL 2.8 26.2 + - - +
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Residues in contact with TYR 165 (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 ILE* 3.7 20.4 - - + -
81A CYS 2.8 11.2 + - - +
82A LEU* 3.4 4.3 - - + -
83A VAL* 2.9 27.4 + - - +
163A ARG* 3.7 13.0 - - + -
164A CYS* 1.3 73.5 - - - +
166A THR* 1.3 59.7 + - - +
184A VAL* 3.5 37.7 - - + -
243A PHE* 4.3 16.8 - + - -
246A CYS* 3.1 21.1 + - - +
247A MET* 3.2 3.6 + - - -
250A ASP* 2.7 30.6 + - - -
251A PHE* 3.5 22.6 - + - -
269A PHE* 3.4 18.4 - + + -
272A LEU* 3.6 23.3 - - + -
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Residues in contact with THR 166 (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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83A VAL* 3.5 14.3 - - - +
164A CYS* 3.8 2.9 + - - -
165A TYR* 1.3 74.0 - - - +
167A GLN* 1.3 59.5 + - - +
168A ASN* 3.0 24.4 + - - +
173A GLU* 2.6 37.4 + - - +
183A LEU* 4.4 6.3 - - + -
184A VAL 2.9 17.5 + - - +
185A GLU* 3.8 24.0 - - + -
186A ALA* 3.0 28.8 + - - +
187A HIS 3.9 1.2 + - - -
269A PHE* 3.9 4.7 - - - -
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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