Contacts of the helix formed by residues 41 - 48 (chain D) in PDB entry 6E7P
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 LEU 41 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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38D GLU* 5.3 4.9 - - - -
39D GLU 3.4 2.6 - - - +
40D ASP* 1.3 82.2 - - + +
42D ARG* 1.3 61.9 + - - +
43D ARG 3.5 1.6 - - - -
44D ARG* 4.0 29.8 - - + +
45D LEU* 3.2 48.5 + - + +
326D LEU* 6.2 0.2 - - + -
329D GLU* 4.7 22.4 - - + +
330D PHE 5.5 0.4 - - - +
333D PHE* 3.8 36.1 - - + +
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Residues in contact with ARG 42 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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38D GLU* 3.2 28.7 - - + +
39D GLU* 3.5 13.7 - - - +
40D ASP 3.2 2.6 - - - -
41D LEU* 1.3 78.5 - - - +
43D ARG* 1.3 68.4 + - + +
45D LEU* 5.3 0.2 - - - -
46D LYS* 3.2 34.6 + - + +
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Residues in contact with ARG 43 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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40D ASP 4.6 4.6 + - - +
41D LEU 3.5 0.2 - - - -
42D ARG* 1.3 81.4 - - + +
44D ARG* 1.3 66.2 + - + +
46D LYS* 3.4 2.9 + - - +
47D TYR* 3.1 46.4 + - + +
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Residues in contact with ARG 44 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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40D ASP 5.4 3.1 + - - +
41D LEU* 4.0 28.2 + - + +
42D ARG 3.5 0.4 - - - -
43D ARG* 1.3 79.7 - - + +
45D LEU* 1.3 66.7 + - + +
46D LYS 3.4 0.5 + - - -
47D TYR* 3.5 20.9 + - + +
48D PHE* 3.6 12.0 + - - +
322D ARG* 4.7 19.3 + - - +
325D LEU* 5.7 2.2 - - - +
326D LEU* 3.4 41.4 - - + +
329D GLU* 5.6 5.5 + - - +
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Residues in contact with LEU 45 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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41D LEU* 3.2 49.9 + - + +
42D ARG 4.7 0.4 - - - +
44D ARG* 1.3 78.6 - - + +
46D LYS* 1.3 62.0 + - + +
47D TYR 3.6 0.2 - - - -
48D PHE* 4.2 10.3 + - + +
49D PHE* 4.1 23.0 + - - -
326D LEU* 4.5 31.0 - - + +
329D GLU* 6.5 0.9 - - + -
330D PHE* 4.7 23.6 - - + -
333D PHE* 4.9 4.0 - - + -
350D PHE* 6.6 0.4 - - + -
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Residues in contact with LYS 46 (chain D).
Click here for Legend to table.
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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42D ARG* 3.2 25.0 + - + +
43D ARG* 4.2 2.9 - - - +
44D ARG 3.2 0.6 - - - -
45D LEU* 1.3 82.8 - - + +
47D TYR* 1.3 62.9 + - + +
48D PHE 3.2 1.6 - - - -
49D PHE* 2.9 42.3 + - + +
50D MET* 3.3 8.6 - - - +
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Residues in contact with TYR 47 (chain D).
Click here for Legend to table.
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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43D ARG* 3.1 38.3 + - + +
44D ARG* 3.5 13.7 + - + +
46D LYS* 1.3 79.6 - - + +
48D PHE* 1.3 62.2 + - - +
50D MET* 3.2 28.7 - - + +
55D LYS* 5.2 3.8 - - - -
58D ALA* 4.9 11.9 - - + -
59D LYS* 3.1 51.6 + - + +
322D ARG* 6.1 2.7 - - - +
801D HZ7 4.5 28.8 - - + +
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Residues in contact with PHE 48 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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44D ARG 3.6 11.7 + - - +
45D LEU* 4.4 10.5 - - + +
46D LYS 3.2 0.4 - - - -
47D TYR* 1.3 78.6 - - - +
49D PHE* 1.3 83.7 + + - +
50D MET 3.5 3.8 + - - +
319D SER* 4.6 14.1 - - - -
322D ARG* 5.2 17.5 - - + +
323D GLY* 4.5 23.1 - - - -
326D LEU* 6.3 5.4 - - + -
350D PHE* 3.2 35.7 - + + -
351D VAL* 5.5 0.2 - - - -
352D ASN* 3.6 23.5 + - - +
801D HZ7 5.7 9.6 - - - -
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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
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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