Contacts of the strand formed by residues 7 - 11 (chain T) 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 T).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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3T ASP 4.8 5.7 + - - +
4T LEU* 3.0 27.9 + - + +
5T SER 3.8 12.3 + - - +
6T GLY* 1.3 84.6 - - - +
8T VAL* 1.3 68.2 + - - +
155T GLY* 4.1 1.7 - - - -
156T ASP* 4.6 1.2 + - - +
185T TRP* 3.0 25.0 + - - -
198T ILE* 3.9 25.6 - - + -
199T LYS 3.3 14.4 - - - +
200T PRO* 4.4 7.4 - - + -
201T LEU* 3.9 3.0 - - - +
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Residues in contact with VAL 8 (chain T).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
4T LEU* 6.0 0.4 - - - -
7T LYS* 1.3 79.6 - - - +
9T PHE* 1.3 63.7 + - - +
10T VAL* 4.0 13.7 - - + -
153T GLU* 3.4 24.9 - - + +
154T ILE 3.3 14.1 - - - +
155T GLY* 3.9 7.0 - - - -
185T TRP* 4.1 3.4 - - - -
198T ILE* 3.4 9.6 - - - +
199T LYS* 2.8 41.2 + - + +
200T PRO 4.2 6.7 - - - +
201T LEU* 3.9 29.4 - - + -
203T TRP* 3.9 15.3 - - + -
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Residues in contact with PHE 9 (chain T).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
4T LEU* 3.7 18.4 - - + -
8T VAL* 1.3 73.5 - - - +
10T VAL* 1.3 62.1 + - - +
11T PHE* 3.6 21.3 - - + -
20T VAL* 3.9 17.5 - - + -
133T LEU* 4.1 17.9 - - + -
152T GLY 3.7 0.7 - - - +
153T GLU* 3.3 5.5 - - - -
154T ILE* 2.8 34.9 + - + +
185T TRP* 3.5 28.9 - + - -
188T LEU* 3.8 12.6 - - + -
190T TYR* 3.7 22.4 - + - -
192T ILE* 4.0 12.8 - - + -
196T VAL* 4.1 14.1 - - + -
197T ILE 3.7 0.7 - - - -
198T ILE* 3.7 34.5 - - + -
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Residues in contact with VAL 10 (chain T).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
104P ILE* 3.8 26.0 - - + -
116P LYS* 3.9 30.7 - - + +
8T VAL* 4.0 12.3 - - + -
9T PHE* 1.3 72.4 - - - +
11T PHE* 1.3 62.4 + - - +
12T PRO* 3.1 18.1 - - + +
152T GLY 3.5 7.6 - - - +
153T GLU* 4.1 4.5 - - + -
196T VAL* 3.4 4.7 - - - -
197T ILE 2.7 42.9 + - - +
199T LYS* 3.9 26.9 - - + -
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Residues in contact with PHE 11 (chain T).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
116P LYS 5.0 0.2 - - - +
9T PHE* 3.6 26.2 - + + -
10T VAL* 1.3 69.2 - - - +
12T PRO* 1.3 67.0 - - - +
13T ARG 3.2 7.6 + - - +
18T ASP* 4.6 9.2 - - + -
19T HIS* 4.3 0.7 - - - -
20T VAL* 3.7 25.6 - - + -
133T LEU* 3.6 41.7 - - + -
134T GLY* 3.7 11.0 - - - -
150T PHE* 3.3 43.1 - + - +
151T VAL* 3.4 5.5 - - - +
152T GLY* 2.8 32.4 + - - +
154T ILE* 4.3 13.0 - - + -
195T TYR 4.4 2.2 - - - -
196T VAL* 3.9 16.6 - - + -
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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
------------------------------------------------------------
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