Contacts of the helix formed by residues 39 - 46 (chain q) in PDB entry 5K0Y
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 ASP 39 (chain q).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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37q ALA* 3.4 16.6 - - + +
38q ALA* 1.4 76.4 - - - +
40q ALA* 1.4 59.5 + - - +
42q GLY* 3.0 21.1 + - - +
45q TRP 3.4 6.7 + - - -
46q LYS* 3.5 26.6 + - + +
47q GLY* 3.3 25.1 + - - -
48q TYR 3.5 17.3 - - - +
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Residues in contact with ALA 40 (chain q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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22q ARG 4.7 1.3 - - - +
23q LYS* 3.6 34.8 - - - +
26q THR* 4.0 29.2 - - + +
37q ALA* 4.8 4.2 + - - +
38q ALA* 4.6 3.1 - - - +
39q ASP* 1.4 76.6 - - - +
41q LEU* 1.4 60.7 + - + +
42q GLY 3.4 0.6 + - - -
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Residues in contact with LEU 41 (chain q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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3q LEU* 4.0 23.3 - - + -
5q ILE* 4.0 26.9 - - + -
16q ILE* 4.5 3.4 - - + -
18q VAL* 4.4 9.6 - - + -
23q LYS* 3.4 58.1 - - + +
27q PHE* 4.1 15.5 - - + -
38q ALA* 3.1 20.3 + - + +
40q ALA* 1.4 76.4 - - + +
42q GLY* 1.4 56.9 + - - +
45q TRP* 3.6 34.3 - - + -
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Residues in contact with GLY 42 (chain q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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23q LYS* 5.7 0.4 - - - -
38q ALA 4.3 0.2 + - - -
39q ASP 3.0 18.0 + - - +
40q ALA 3.4 0.8 - - - -
41q LEU* 1.4 80.9 - - - +
43q GLU* 1.4 61.7 + - - -
44q GLU 3.2 2.7 - - - -
45q TRP* 3.7 8.9 + - - -
46q LYS* 3.3 18.3 + - - +
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Residues in contact with GLU 43 (chain q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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42q GLY* 1.4 70.0 - - - -
44q GLU* 1.4 59.0 + - + +
45q TRP 3.3 2.5 - - - -
46q LYS* 3.3 33.1 + - + +
119q LYS* 3.6 45.8 + - + +
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Residues in contact with GLU 44 (chain q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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42q GLY 3.2 1.0 - - - -
43q GLU* 1.4 78.8 - - + +
45q TRP* 1.4 75.8 + - + +
46q LYS 3.5 0.2 - - - -
48q TYR* 3.2 26.2 + - - -
119q LYS* 3.4 30.7 + - - +
120q ASP 3.6 15.7 - - - +
121q ILE* 3.5 31.5 - - + +
122q PRO* 3.7 21.1 - - - +
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Residues in contact with TRP 45 (chain q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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5q ILE* 3.7 32.5 - - + +
16q ILE* 3.7 33.8 - - + +
38q ALA* 3.3 40.6 - - + +
39q ASP 3.4 1.0 + - - -
41q LEU* 3.6 34.8 - - + -
42q GLY* 3.7 16.1 + - - +
44q GLU* 1.4 98.3 - - + +
46q LYS* 1.4 59.0 + - - +
48q TYR* 3.3 36.2 + + + +
113q ILE* 5.3 0.7 - - + -
121q ILE* 3.4 34.2 - - + +
124q LEU* 5.3 2.0 - - - +
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Residues in contact with LYS 46 (chain q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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39q ASP* 3.5 24.2 + - + +
42q GLY 3.3 11.3 + - - +
43q GLU* 3.3 29.1 + - + +
45q TRP* 1.4 77.1 - - - +
47q GLY* 1.4 63.5 + - - +
48q TYR* 3.2 6.1 - - - -
117q GLY* 3.6 12.8 - - - -
118q GLU* 4.2 12.6 + - - +
119q LYS 5.0 1.2 + - - -
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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