Contacts of the strand formed by residues 69 - 72 (chain F) in PDB entry 3KHU
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 69 (chain F).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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20F CYS 4.2 16.4 - - - +
21F SER* 3.6 25.4 - - - +
24F ALA* 3.8 12.1 - - + -
32F VAL* 3.4 8.3 - - + +
34F VAL* 4.1 15.5 - - + -
61F VAL* 4.2 15.7 - - + +
64F CYS* 3.2 30.7 + - - +
65F ARG* 3.5 6.5 - - - +
66F GLY 2.9 24.9 + - - -
67F LYS 3.8 0.4 - - - -
68F ASN* 1.3 77.7 - - - +
70F PHE* 1.3 68.3 + - - +
71F PHE* 3.7 30.5 - - + -
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Residues in contact with PHE 70 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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31F ARG* 3.5 48.9 - - + +
32F VAL 2.9 13.0 + - - +
33F THR* 4.3 14.8 - - + +
34F VAL* 2.7 34.9 + - - +
46F ASN* 5.7 0.2 - - - -
65F ARG* 5.5 0.7 - - - -
66F GLY* 3.6 35.4 - - - -
67F LYS 3.8 9.9 - - - -
68F ASN* 3.8 20.2 - - - -
69F LEU* 1.3 79.1 - - - +
71F PHE* 1.3 62.2 + - - +
72F SER* 4.2 2.0 - - - -
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Residues in contact with PHE 71 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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12F ALA* 4.9 0.9 - - + -
17F GLY* 4.7 2.7 - - - -
21F SER* 3.7 19.7 - - - -
34F VAL* 3.3 34.5 - - + +
42F ILE* 3.7 10.4 - - + +
45F TRP* 3.4 63.9 - + + -
46F ASN* 3.1 40.5 + - - +
61F VAL* 4.2 13.7 - - + -
65F ARG* 4.3 7.6 - - + -
69F LEU* 3.7 27.6 - - + -
70F PHE* 1.3 75.5 - - - +
72F SER* 1.3 62.5 + - - +
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Residues in contact with SER 72 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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33F THR* 4.5 17.5 - - - -
34F VAL 3.1 6.1 + - - -
35F VAL* 3.1 29.9 - - - +
36F ASP 3.5 2.4 + - - -
42F ILE* 3.6 12.7 - - - +
70F PHE* 5.6 2.2 - - - -
71F PHE* 1.3 76.7 - - - +
73F THR* 1.3 58.1 + - - +
74F ASN* 2.8 29.9 + - - +
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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