Contacts of the strand formed by residues 2 - 8 (chain F) in PDB entry 2AJQ
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 ILE 2 (chain F).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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1F MET* 1.3 77.3 - - - +
3F VAL* 1.3 63.1 + - - +
4F SER* 5.2 0.9 - - - -
23F ILE* 3.8 25.1 - - + -
24F TYR 3.3 9.0 - - - +
25F ASP* 3.8 22.9 - - + +
45F ALA* 5.0 2.0 - - + +
46F LEU* 3.6 32.8 - - + -
49F GLU* 3.1 33.7 - - + +
52F ARG* 5.1 0.4 - - - +
55F LEU 2.9 13.6 + - - +
56F ILE* 3.5 16.7 - - + -
57F VAL* 2.8 27.5 + - - +
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Residues in contact with VAL 3 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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2F ILE* 1.3 76.7 - - - +
4F SER* 1.3 68.4 + - - +
22F VAL 3.6 0.7 - - - +
23F ILE* 3.4 1.9 - - - +
24F TYR* 2.8 45.6 + - + +
26F TYR* 3.8 26.9 - - + -
57F VAL* 3.6 16.2 - - + +
175F VAL* 4.0 10.9 - - + +
178F THR* 3.4 37.5 - - + -
179F LYS* 4.0 17.0 - - + +
182F LEU* 4.3 8.7 - - + -
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Residues in contact with SER 4 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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2F ILE* 5.2 1.1 - - - -
3F VAL* 1.3 80.5 - - - +
5F ALA* 1.3 73.3 + - - +
22F VAL 3.0 14.0 + - - -
23F ILE* 4.3 8.7 - - - -
42F TYR* 2.7 27.0 + - - -
46F LEU* 4.8 5.6 - - - -
56F ILE* 4.9 3.6 - - - -
57F VAL 2.8 15.0 + - - +
58F PHE* 3.2 35.3 - - - -
59F HIS 4.5 2.9 + - - -
175F VAL* 4.2 4.7 - - - -
178F THR* 4.5 4.0 + - - +
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Residues in contact with ALA 5 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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4F SER* 1.3 83.2 + - - +
6F ILE* 1.3 69.0 + - - +
21F GLY* 3.3 0.3 - - - -
22F VAL 3.1 27.2 + - - -
58F PHE* 4.2 6.3 - - - -
59F HIS 6.2 0.2 - - - +
65F ASP* 4.3 2.2 - - - -
125F LEU* 5.9 1.8 - - + -
171F ASN* 3.9 13.5 + - - +
174F ASP* 4.8 8.7 - - + +
175F VAL* 3.4 26.2 - - + +
178F THR* 5.0 2.5 - - - +
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Residues in contact with ILE 6 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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5F ALA* 1.3 76.3 - - - +
7F ALA* 1.3 69.8 + - - +
8F ALA* 5.2 4.9 - - + -
18F PHE* 4.3 10.5 - - + -
20F CYS 3.3 13.2 - - - +
21F GLY* 4.5 0.2 - - - -
42F TYR* 3.0 40.6 - - + +
58F PHE* 4.4 2.7 - - + -
64F TYR* 4.4 20.3 - - + -
65F ASP* 3.4 28.9 + - - +
68F ALA* 4.6 5.6 - - + -
69F LEU* 4.0 24.0 - - + -
72F LEU* 5.6 2.0 - - + -
160F TRP* 5.9 0.3 - - - -
171F ASN* 3.7 9.0 + - - +
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Residues in contact with ALA 7 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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6F ILE* 1.3 80.9 - - - +
8F ALA* 1.3 61.2 + - - +
18F PHE* 4.3 4.2 - - - -
19F HIS* 2.9 23.8 + - - +
20F CYS* 3.0 29.8 + - - +
64F TYR* 6.2 0.9 - - - -
160F TRP* 3.6 30.5 - - + -
167F MET* 4.1 6.7 - - + -
171F ASN* 4.7 4.3 - - - +
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Residues in contact with ALA 8 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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6F ILE* 5.1 5.1 - - + +
7F ALA* 1.3 74.1 - - - +
9F ASN* 1.3 65.5 + - - +
10F ALA 3.3 3.3 + - - +
15F VAL* 3.4 25.6 - - + -
17F LYS 3.5 11.0 - - - +
18F PHE* 4.6 0.2 - - - -
19F HIS* 3.6 8.8 - - - -
64F TYR* 3.5 18.9 + - + +
68F ALA* 6.0 0.2 - - + -
72F LEU* 4.2 10.5 - - + -
160F TRP* 3.5 20.1 - - - +
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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