Contacts of the strand formed by residues 16 - 22 (chain E) in PDB entry 2LNQ
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 LYS 16 (chain E).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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21D ALA 5.1 4.5 - - - +
22D GLU* 5.5 9.9 - - + +
23D ASN* 4.0 21.4 + - - +
15E GLN* 1.3 88.2 + - + +
17E LEU* 1.3 57.8 + - - +
18E VAL* 5.5 0.4 - - + -
20F PHE* 5.0 2.3 - - - -
22F GLU* 2.7 60.0 + - + +
24F VAL* 6.3 2.0 - - + -
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Residues in contact with LEU 17 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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21D ALA* 3.6 29.3 + - + +
23D ASN* 5.1 5.8 - - - +
15E GLN* 4.3 7.2 - - - +
16E LYS* 1.3 86.8 - - - +
18E VAL* 1.3 73.6 + - - +
19E PHE* 5.9 0.7 - - + -
34E LEU* 3.5 33.9 - - + -
36E VAL* 4.6 20.6 - - + -
19F PHE* 4.3 14.1 - - + -
20F PHE* 3.4 15.5 - - - +
21F ALA* 3.7 14.8 - - + +
22F GLU 5.3 1.3 - - - +
32F ILE* 5.1 7.0 - - + -
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Residues in contact with VAL 18 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
19D PHE 4.8 0.9 - - - -
20D PHE* 3.8 31.2 - - + +
21D ALA 4.5 5.8 - - - +
22D GLU* 5.9 3.6 - - + +
16E LYS* 6.4 0.2 - - + -
17E LEU* 1.3 82.9 - - - +
19E PHE* 1.3 64.5 + - - +
20E PHE* 5.2 10.0 - - + -
18F VAL* 6.1 0.2 - - - +
19F PHE* 4.5 0.4 - - - -
20F PHE* 2.9 49.7 + - + +
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Residues in contact with PHE 19 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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17D LEU* 4.8 6.5 - - + -
18D VAL* 5.4 0.4 - - - -
19D PHE* 3.0 67.0 + + + +
20D PHE* 3.0 8.2 - - - -
34D LEU* 3.8 10.1 - - + -
17E LEU* 5.9 0.9 - - + -
18E VAL* 1.3 74.2 - - - +
20E PHE* 1.3 74.2 + - - +
21E ALA* 5.1 2.7 - - + -
32E ILE* 3.7 33.2 - - + -
34E LEU* 3.6 16.4 - - + -
18F VAL 3.3 9.4 - - - +
19F PHE* 2.8 55.0 - + + +
34F LEU* 5.7 0.9 - - + -
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Residues in contact with PHE 20 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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17D LEU 4.8 0.7 - - - -
18D VAL* 3.7 23.6 - - + -
20D PHE* 4.1 14.4 - + + -
18E VAL* 5.2 9.2 - - + -
19E PHE* 1.3 86.0 - - - +
21E ALA* 1.3 60.6 + - - +
22E GLU* 3.9 12.1 - - + +
16F LYS* 3.9 19.5 + - - -
17F LEU* 3.8 0.3 - - - -
18F VAL* 2.9 58.6 + - + -
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Residues in contact with ALA 21 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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15D GLN 5.5 0.8 - - - +
16D LYS* 4.9 1.7 - - - -
17D LEU* 3.6 27.2 + - + +
18D VAL* 4.5 0.2 - - - +
19E PHE* 5.1 3.5 - - + -
20E PHE* 1.3 75.7 - - - +
22E GLU* 1.3 78.7 + - - +
32E ILE* 5.2 14.8 - - + -
16F LYS 3.4 11.4 - - - +
17F LEU* 4.2 12.8 - - + -
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Residues in contact with GLU 22 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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16D LYS* 4.2 22.7 - - + +
18D VAL* 3.8 15.2 - - - +
20E PHE* 3.9 12.4 - - + +
21E ALA* 1.3 102.4 + - - +
23E ASN* 1.3 57.4 + - - +
24E VAL* 5.3 0.7 - - - +
15F GLN* 3.7 0.7 + - - -
16F LYS* 2.5 71.1 + - + +
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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
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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