Contacts of the helix formed by residues 35 - 48 (chain B) in PDB entry 5U2H
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 ALA 35 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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34B HIS* 1.3 75.9 - - - +
36B LEU* 1.3 66.4 + - - +
38B PHE* 2.9 10.6 + - - +
39B SER* 2.9 23.7 + - - -
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Residues in contact with LEU 36 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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34B HIS 3.3 5.5 - - - +
35B ALA* 1.3 78.8 - - - +
37B VAL* 1.3 57.5 + - - +
39B SER* 4.0 6.8 - - - +
40B TYR* 2.9 30.7 + - - +
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Residues in contact with VAL 37 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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34B HIS* 3.2 18.1 + - - +
35B ALA 3.1 0.8 - - - -
36B LEU* 1.3 77.9 - - - +
38B PHE* 1.3 57.5 + - - +
40B TYR* 3.8 5.4 - - - +
41B ILE* 2.9 27.7 + - - +
347B ALA* 4.7 11.9 - - + -
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Residues in contact with PHE 38 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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34B HIS 3.3 8.0 + - - +
35B ALA* 2.9 12.2 + - - +
37B VAL* 1.3 76.6 - - - +
39B SER* 1.3 65.4 + - - +
41B ILE* 3.0 9.0 + - - +
42B SER* 2.9 22.3 + - - -
343B TYR 6.1 0.4 - - - -
344B PHE* 4.2 28.9 - - + +
347B ALA* 5.2 2.4 - - + +
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Residues in contact with SER 39 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
35B ALA 2.9 13.2 + - - -
36B LEU* 4.0 7.4 - - - -
38B PHE* 1.3 75.7 - - - +
40B TYR* 1.3 57.9 + - - +
42B SER* 3.1 9.0 + - - +
43B PHE* 2.9 28.3 + - - +
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Residues in contact with TYR 40 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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36B LEU 2.9 20.7 + - - +
37B VAL* 3.9 6.3 - - - +
39B SER* 1.3 76.2 - - - +
41B ILE* 1.3 58.0 + - - +
43B PHE* 3.5 8.3 + - - +
44B ALA* 2.9 30.1 + - - +
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Residues in contact with ILE 41 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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37B VAL 2.9 19.2 + - - +
38B PHE* 3.0 9.2 + - - +
40B TYR* 1.3 77.4 - - - +
42B SER* 1.3 58.1 + - - +
44B ALA* 3.5 5.4 + - - +
45B LEU* 2.9 28.4 + - - +
340B VAL* 5.9 7.2 - - + -
343B TYR* 4.7 19.5 - - + -
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Residues in contact with SER 42 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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38B PHE 2.9 11.6 + - - -
39B SER* 3.1 10.7 + - - -
41B ILE* 1.3 75.0 - - - +
43B PHE* 1.3 59.7 + - - +
45B LEU* 3.2 8.3 + - - +
46B ILE* 2.9 28.8 + - - +
340B VAL* 5.8 8.5 - - - +
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Residues in contact with PHE 43 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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39B SER 2.9 16.0 + - - +
40B TYR* 3.8 8.3 - - - +
42B SER* 1.3 75.1 - - - +
44B ALA* 1.3 58.3 + - - +
46B ILE* 3.2 7.3 + - - +
47B SER* 2.9 28.5 + - - -
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Residues in contact with ALA 44 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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40B TYR 2.9 18.5 + - - +
41B ILE* 3.8 6.5 - - - +
43B PHE* 1.3 76.3 - - - +
45B LEU* 1.3 58.2 + - - +
47B SER* 3.2 7.6 + - - -
48B ASP* 2.9 31.8 + - - +
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Residues in contact with LEU 45 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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41B ILE 2.9 18.5 + - - +
42B SER* 3.2 8.5 + - - +
44B ALA* 1.3 76.8 - - - +
46B ILE* 1.3 61.8 + - - +
48B ASP* 3.3 19.6 + - - +
336B TYR* 5.8 7.6 - - + -
340B VAL* 5.9 6.1 - - + -
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Residues in contact with ILE 46 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
42B SER 2.9 16.5 + - - +
43B PHE* 3.2 7.6 + - - +
45B LEU* 1.3 74.3 - - - +
47B SER* 1.3 65.5 + - - +
48B ASP 3.4 6.4 - - - +
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Residues in contact with SER 47 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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43B PHE 2.9 16.3 + - - -
44B ALA* 3.2 8.5 + - - -
46B ILE* 1.3 78.7 - - - +
48B ASP* 1.3 60.5 + - - +
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Residues in contact with ASP 48 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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44B ALA 2.9 16.2 + - - +
45B LEU* 3.3 17.5 - - - +
46B ILE 3.4 6.3 - - - +
47B SER* 1.3 82.5 - - - +
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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