Contacts of the strand formed by residues 68 - 71 (chain D) in PDB entry 1L9X
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 68 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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11D ILE 3.7 3.2 + - - -
12D ILE* 3.8 13.2 - - - +
13D GLY 3.0 21.5 + - - -
66D ILE* 3.4 9.4 - - - +
67D ASN* 1.3 77.8 - - - +
69D ILE* 1.3 60.9 + - - -
104D PHE* 3.4 14.9 - - - -
105D PRO* 3.5 17.0 - - - -
251D PHE* 4.7 1.1 - - - -
255D ALA* 4.8 0.2 - - - -
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Residues in contact with ILE 69 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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12D ILE* 4.1 0.2 - - - -
13D GLY* 3.3 31.4 - - - +
14D ILE 4.0 0.4 - - - +
15D LEU* 4.3 10.8 - - + -
50D VAL* 3.7 17.7 - - + -
66D ILE* 4.2 7.4 - - + -
68D GLY* 1.3 73.9 - - - +
70D LEU* 1.3 64.0 + - - +
71D PHE* 3.8 28.3 - - + -
90D PHE* 4.2 19.5 - - + -
104D PHE* 3.7 20.9 - - + -
105D PRO 3.2 4.0 + - - -
106D VAL* 3.5 19.6 - - + -
107D TRP 3.0 23.6 + - - +
251D PHE* 3.4 8.4 - - - -
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Residues in contact with LEU 70 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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13D GLY 2.8 13.3 + - - +
14D ILE* 3.6 13.8 - - + -
15D LEU 3.2 24.9 + - - -
36D TYR* 4.0 16.4 - - + +
39D TYR* 4.4 13.7 - - + -
40D LEU* 4.0 29.6 - - + -
69D ILE* 1.3 75.7 - - - +
71D PHE* 1.3 66.4 + - - +
72D PRO* 3.3 35.0 - - + +
107D TRP* 3.2 29.4 - - + +
109D THR* 4.9 2.2 - - - +
251D PHE* 4.2 11.2 - - + -
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Residues in contact with PHE 71 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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15D LEU* 3.5 26.5 - - + -
69D ILE* 3.8 26.5 - - + -
70D LEU* 1.3 79.1 - - - +
72D PRO* 1.3 64.3 - - - +
83D TYR* 3.2 16.6 - - - +
87D ALA* 3.5 37.7 - - + -
90D PHE* 4.4 6.5 - - + -
91D TYR* 4.6 2.7 - - + -
106D VAL* 3.6 27.8 - - + -
107D TRP 2.7 12.2 + - - +
109D THR 2.9 25.1 + - - -
112D GLY* 3.4 17.8 - - - -
115D GLU* 4.4 4.9 - - + -
116D LEU* 4.1 19.1 - - + -
119D LEU* 4.5 5.8 - - + -
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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