Contacts of the helix formed by residues 80 - 85 (chain B) in PDB entry 4KYI
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 80 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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29B GLU* 4.7 4.7 - - - -
30B SER* 3.7 24.5 - - - +
52B SER* 4.2 9.0 - - - +
53B THR 5.3 1.6 - - - +
78B ALA* 3.5 4.6 - - + +
79B GLY* 1.3 82.3 - - - +
81B GLU* 1.3 66.5 + - - +
82B ARG* 3.2 5.5 + - + +
83B TYR* 3.3 41.1 + - + +
84B HIS* 4.0 4.2 + - - +
115B TRP* 6.0 1.4 - - - -
301B GNP 4.0 8.7 - - - +
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Residues in contact with GLU 81 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
29B GLU* 5.0 4.9 + - - +
79B GLY 3.8 0.6 + - - -
80B LEU* 1.3 73.6 - - - +
82B ARG* 1.3 63.5 + - - +
84B HIS* 3.2 31.6 - - - +
111B ARG* 4.1 22.4 + - - +
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Residues in contact with ARG 82 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
432A LEU 4.2 4.2 + - - -
434A ASP 2.6 24.7 + - - -
435A GLU* 3.5 23.6 + - - +
437A SER* 2.7 39.4 + - - -
438A GLU 4.6 0.8 + - - -
439A LYS* 4.9 20.7 - - + +
442A PHE* 3.6 49.0 - - + +
80B LEU* 3.2 4.3 - - + +
81B GLU* 1.3 80.4 - - - +
83B TYR* 1.3 68.3 + - + +
84B HIS 3.0 5.4 + - - -
85B SER* 3.5 16.8 + - - -
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Residues in contact with TYR 83 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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432A LEU* 3.7 21.1 + - + -
442A PHE* 3.6 27.6 - + - -
53B THR 4.6 1.9 + - - -
54B ILE* 4.1 11.4 - - - +
55B GLY* 3.2 38.2 + - - +
78B ALA* 3.6 38.5 - - + +
80B LEU* 3.3 40.6 + - + +
82B ARG* 1.3 78.8 - - + +
84B HIS* 1.3 62.6 + - - +
85B SER 3.2 1.3 - - - -
86B LEU* 3.2 31.3 + - + +
87B ALA* 3.6 8.1 + - - +
90B TYR* 5.5 3.8 - + + -
115B TRP* 5.6 0.3 - - - -
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Residues in contact with HIS 84 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
80B LEU 4.0 2.3 + - - +
81B GLU* 3.2 30.8 + - - +
82B ARG 3.0 1.4 - - - -
83B TYR* 1.3 78.7 - - - +
85B SER* 1.3 64.6 + - - +
87B ALA* 3.3 16.1 - - - +
88B PRO* 4.2 2.4 - - - +
111B ARG* 3.7 19.4 + - - +
115B TRP* 3.4 24.4 - - + -
118B GLU* 3.2 40.1 + - - +
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Residues in contact with SER 85 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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439A LYS* 6.1 0.7 - - - +
442A PHE* 5.3 1.0 - - - -
443A GLU* 3.2 30.5 + - - +
82B ARG 3.5 13.9 + - - -
84B HIS* 1.3 82.0 - - - +
86B LEU* 1.3 61.5 + - - +
87B ALA 3.3 2.1 + - - -
88B PRO* 3.7 11.2 - - - +
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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