Contacts of the strand formed by residues 37 - 40 (chain E) 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 GLY 37 (chain E).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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35E HIS* 4.6 0.7 - - - +
36E LYS* 1.3 81.2 + - - +
38E LEU* 1.3 64.0 + - - +
66E LEU* 3.4 10.0 - - - +
68E HIS 3.7 5.4 - - - -
298E ILE* 3.8 7.9 - - - -
301E LEU* 3.8 15.2 - - - +
305E GLU 3.1 8.1 + - - +
306E VAL* 4.1 2.9 - - - -
307E LEU* 3.1 25.8 + - - +
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Residues in contact with LEU 38 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
37E GLY* 1.3 74.5 - - - +
39E VAL* 1.3 54.4 + - - +
40E LEU* 4.2 13.9 - - + -
53E MET* 4.5 4.3 - - - -
57E LEU* 4.3 22.9 - - + -
66E LEU* 3.9 24.7 - - + -
68E HIS 3.5 5.8 + - - +
69E VAL* 3.2 15.8 - - + +
70E SER 2.7 31.7 + - - +
82E LEU* 3.9 28.0 - - + -
298E ILE* 3.5 5.5 - - - +
307E LEU* 3.4 28.9 - - + +
309E VAL* 4.2 20.4 - - + -
372E ILE* 5.8 0.2 - - + -
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Residues in contact with VAL 39 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
38E LEU* 1.3 73.9 - - - +
40E LEU* 1.3 66.8 + - - +
70E SER* 3.2 15.9 - - - +
295E MET* 3.8 11.2 - - + -
296E PRO* 3.3 50.5 - - + +
297E GLU* 5.6 0.4 - - - -
298E ILE* 4.7 4.5 - - + -
306E VAL* 3.6 13.7 - - + -
307E LEU 3.0 13.9 + - - +
308E CYS* 3.6 21.9 - - - -
309E VAL 3.1 26.0 + - - +
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Residues in contact with LEU 40 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
38E LEU* 4.2 11.4 - - + -
39E VAL* 1.3 85.9 - - - +
41E SER* 1.3 66.8 - - - +
50E TYR* 4.0 15.9 - - + -
53E MET* 3.7 26.2 - - + -
69E VAL* 5.4 0.4 - - + -
70E SER 2.8 15.6 + - - +
71E GLY* 3.3 1.9 - - - -
72E ALA* 3.1 21.1 + - - +
75E GLY* 3.7 33.2 - - - +
78E THR* 3.8 28.9 - - + -
79E ALA* 4.2 7.4 - - + +
82E LEU* 5.1 4.5 - - + -
296E PRO* 4.6 1.7 - - - +
309E VAL* 3.7 19.1 - - + -
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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
------------------------------------------------------------
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