Contacts of the strand formed by residues 78 - 81 (chain A) in PDB entry 2J0U
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 VAL 78 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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68A ALA* 4.4 3.8 - - + +
71A GLN* 4.2 13.0 - - + -
72A ILE* 3.8 31.0 - - + +
76A ARG 3.3 15.8 + - - +
77A ASP* 1.3 74.4 - - - +
79A ILE* 1.3 73.6 + - - +
80A ALA* 4.0 13.9 - - + -
214A VAL 3.0 5.3 + - - -
215A VAL* 3.1 16.2 - - + -
216A LEU 2.7 31.0 + - - -
233A MET* 3.4 4.1 - - - +
237A ILE* 3.8 10.1 - - + +
239A ILE* 4.3 15.7 - - + -
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Residues in contact with ILE 79 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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78A VAL* 1.3 74.9 - - - +
80A ALA* 1.3 62.7 + - - +
216A LEU* 3.4 11.9 - - + +
221A LEU* 3.9 34.3 - - + -
226A LEU* 5.1 8.3 - - + -
229A THR* 4.2 20.6 - - + +
233A MET* 3.4 29.6 - - + -
236A PRO* 3.9 7.9 - - + -
237A ILE 3.0 8.2 + - - +
238A ARG* 3.4 41.8 - - + +
239A ILE 2.9 23.6 + - - -
240A LEU* 5.0 1.1 - - + -
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Residues in contact with ALA 80 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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68A ALA* 4.9 10.5 - - + -
78A VAL* 4.0 14.8 - - + -
79A ILE* 1.3 76.2 - - - +
81A GLN* 1.3 68.5 + - - +
82A SER* 3.6 2.8 + - - -
215A VAL* 5.6 0.2 - - + -
216A LEU 2.8 13.0 + - - +
217A ILE* 3.7 16.6 - - + +
218A SER 3.2 21.7 + - - -
221A LEU* 4.5 2.2 - - - -
239A ILE* 3.6 10.3 - - + +
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Residues in contact with GLN 81 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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64A ILE* 5.4 6.6 - - - +
79A ILE 4.1 0.2 - - - -
80A ALA* 1.3 78.8 - - - +
82A SER* 1.3 62.1 + - - +
83A GLN* 4.8 2.8 - - - +
218A SER 3.1 7.2 - - - +
219A ALA 3.2 21.1 + - - +
220A THR* 4.1 2.0 - - - +
221A LEU* 3.5 33.3 - - + +
239A ILE 2.8 10.9 + - - +
240A LEU* 3.5 26.4 - - - +
241A VAL* 2.9 41.7 + - + +
242A LYS* 3.7 6.6 + - - +
370A ARG* 4.0 14.6 + - - +
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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