Contacts of the helix formed by residues 986 - 991 (chain E) in PDB entry 3DLS
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 GLU 986 (chain E).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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984E GLU* 3.3 29.0 + - + +
985E LEU* 1.3 75.2 - - - +
987E GLY* 1.3 62.9 + - - +
988E LEU 3.5 2.0 - - - -
989E ALA* 3.6 14.6 + - - +
990E ALA* 3.2 24.7 + - + +
1012E PHE* 6.0 3.1 - - + -
1031E LYS* 2.7 35.1 + - + +
1076E PHE* 3.9 23.0 - - + -
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Residues in contact with GLY 987 (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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985E LEU* 3.4 4.8 + - - +
986E GLU* 1.3 77.5 - - - +
988E LEU* 1.3 63.9 + - - +
990E ALA* 3.3 15.0 + - - +
991E CYS* 3.4 20.1 + - - -
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Residues in contact with LEU 988 (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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985E LEU 5.2 1.9 + - - +
986E GLU 3.5 0.2 - - - -
987E GLY* 1.3 75.3 - - - +
989E ALA* 1.3 63.1 + - - +
991E CYS* 3.8 4.5 + - - +
992E GLU* 3.4 24.8 + - - +
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Residues in contact with ALA 989 (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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986E GLU* 3.6 20.3 + - - +
987E GLY 3.3 0.6 - - - -
988E LEU* 1.3 76.6 - - - +
990E ALA* 1.3 59.4 + - - +
991E CYS 3.3 0.2 - - - -
992E GLU* 3.8 4.7 + - - +
1073E ASN* 2.8 28.4 + - - -
1075E GLY* 5.3 3.3 + - - +
1076E PHE* 3.6 18.2 - - + -
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Residues in contact with ALA 990 (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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986E GLU 3.2 17.4 + - - +
987E GLY* 3.3 7.1 + - - +
989E ALA* 1.3 77.3 - - - +
991E CYS* 1.3 59.3 + - - +
1012E PHE* 6.4 0.2 - - + -
1029E PHE* 3.2 37.4 - - + -
1076E PHE* 3.7 24.9 - - + -
1078E GLN* 3.0 23.3 - - - +
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Residues in contact with CYS 991 (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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987E GLY* 3.4 17.9 + - - +
988E LEU* 3.8 3.8 + - - +
989E ALA 3.3 0.2 - - - -
990E ALA* 1.3 77.6 - - - +
992E GLU* 1.3 65.6 + - - +
995E TYR* 3.9 19.3 - - + -
996E SER* 2.3 43.9 + - - +
1001E THR* 4.0 11.0 - - - -
1029E PHE* 3.8 25.4 - - - -
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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