Contacts of the strand formed by residues 7 - 11 (chain B) in PDB entry 2A3W
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 7 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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3B ASP 5.0 6.3 + - - -
4B LEU* 2.9 24.9 + - + +
5B SER 4.0 8.1 - - - +
6B GLY* 1.3 84.4 - - - +
8B VAL* 1.3 68.3 + - - +
155B GLY* 4.1 2.1 - - - -
156B ASP* 4.6 0.9 + - - +
185B TRP* 3.1 25.8 + - - -
198B ILE* 3.9 22.6 - - + +
199B LYS 3.2 14.8 - - - +
200B PRO* 4.2 8.3 - - + -
201B LEU* 3.9 3.3 - - - +
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Residues in contact with VAL 8 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
4B LEU* 6.1 0.2 - - - -
7B LYS* 1.3 79.7 - - - +
9B PHE* 1.3 65.4 + - - +
10B VAL* 3.8 16.2 - - + -
153B GLU* 3.5 20.9 - - + +
154B ILE 3.4 14.1 - - - +
155B GLY* 4.1 5.6 - - - -
185B TRP* 4.2 2.7 - - - -
198B ILE* 3.3 10.1 - - - +
199B LYS* 2.8 39.3 + - + +
200B PRO 3.9 8.7 - - - +
201B LEU* 3.7 31.4 - - + -
203B TRP* 4.0 14.4 - - + +
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Residues in contact with PHE 9 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
4B LEU* 3.9 14.1 - - + -
8B VAL* 1.3 73.0 - - - +
10B VAL* 1.3 61.3 + - - +
11B PHE* 3.7 19.3 - - + -
20B VAL* 3.8 19.3 - - + -
133B LEU* 3.9 20.2 - - + -
152B GLY 3.7 0.9 - - - +
153B GLU* 3.4 5.4 - - - -
154B ILE 2.9 31.3 + - - +
185B TRP* 3.6 32.0 - + - -
188B LEU* 3.9 6.5 - - + -
190B TYR* 3.8 39.3 - + - -
192B ILE* 4.1 6.5 - - + -
196B VAL* 4.0 15.3 - - + -
197B ILE 3.9 1.3 - - - -
198B ILE* 3.8 28.0 - - + -
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Residues in contact with VAL 10 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
8B VAL* 3.8 18.2 - - + -
9B PHE* 1.3 74.3 - - - +
11B PHE* 1.3 62.2 + - - +
12B PRO* 3.1 18.2 - - + +
152B GLY 3.5 7.4 - - - +
153B GLU* 4.1 4.7 - - + -
196B VAL* 3.4 4.4 - - - -
197B ILE 2.7 43.9 + - - +
199B LYS* 3.9 10.5 - - + -
104C ILE* 3.8 19.3 - - + -
116C LYS* 3.7 47.6 - - + +
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Residues in contact with PHE 11 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
9B PHE* 3.7 23.6 - - + -
10B VAL* 1.3 71.4 - - - +
12B PRO* 1.3 62.4 - - - +
13B ARG 3.2 12.9 + - - +
18B ASP* 4.6 10.1 - - + -
19B HIS* 4.2 0.7 - - - -
20B VAL* 3.7 25.6 - - + -
133B LEU* 3.6 31.2 - - + -
134B GLY* 3.6 21.8 - - - -
150B PHE* 3.4 38.6 - + - +
151B VAL* 3.4 4.5 - - - +
152B GLY* 2.8 40.6 + - - +
154B ILE* 4.2 12.6 - - + -
195B TYR 4.3 2.2 - - - +
196B VAL* 3.8 16.8 - - + -
116C LYS 4.9 0.2 - - - +
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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
------------------------------------------------------------
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