Contacts of the strand formed by residues 34 - 38 (chain W) in PDB entry 3TDD
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 34 (chain W).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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3W VAL* 4.8 0.4 - - + -
14W ILE* 3.4 48.0 - - + +
15W ALA* 3.7 15.7 - - - -
16W CYS* 3.8 16.4 - - + +
32W GLU* 3.5 10.6 - - + +
33W LYS* 1.3 83.8 - - - +
35W PHE* 1.3 81.1 + - - +
42W PHE* 4.1 13.0 - - + -
43W LEU 3.4 7.0 - - - +
44W GLY* 4.1 10.1 - - - -
174W VAL* 4.7 0.7 - - + +
176W TYR* 3.7 40.4 + - + -
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Residues in contact with PHE 35 (chain W).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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31W PHE* 5.9 1.1 - + - -
32W GLU* 3.9 20.2 - - + -
33W LYS 3.7 15.7 - - - -
34W ILE* 1.3 79.7 - - - +
36W HIS* 1.3 63.8 + - - +
38W TYR* 3.7 9.6 - - + +
42W PHE* 3.3 5.9 - - - +
43W LEU* 2.7 44.9 + - - +
45W ILE* 3.9 23.3 - - + -
52W VAL* 3.9 21.5 - - + -
53W THR* 5.5 2.5 - - - -
56W ASN* 3.3 48.0 - - + +
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Residues in contact with HIS 36 (chain W).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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219V VAL* 3.8 16.2 - - + +
220V ASN 3.5 23.6 - - - -
221V ILE* 4.5 1.5 - - + +
35W PHE* 1.3 81.0 - - - +
38W TYR* 1.3 71.7 - - - +
39W GLY* 3.3 21.0 + - - +
41W VAL 3.1 13.5 - - - +
42W PHE* 3.5 32.8 - + + -
176W TYR* 5.3 6.5 - + - -
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Residues in contact with TYR 38 (chain W).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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35W PHE* 3.7 8.1 - - + +
36W HIS* 1.3 81.4 - - - +
39W GLY* 1.3 64.1 + - - +
40W HIS 3.3 0.3 + - - -
41W VAL* 2.8 31.8 + - + +
43W LEU* 3.7 27.2 - - + +
56W ASN* 2.6 42.2 + - - +
59W PHE* 3.7 6.3 - - + +
60W ARG* 3.6 28.5 - - + -
63W THR* 3.5 36.3 - - + +
73W ALA* 5.7 0.2 - - - +
74W ILE* 4.7 7.3 - - + +
79W PHE* 3.5 35.7 - + + -
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Residues in contact with GLY 39 (chain W).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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221V ILE* 3.7 25.8 - - - +
36W HIS* 3.3 24.9 + - - -
38W TYR* 1.3 71.9 - - - +
40W HIS* 1.3 61.7 + - - -
73W ALA* 4.9 11.9 - - - -
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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