Contacts of the helix formed by residues 38 - 44 (chain D) in PDB entry 3O9Z
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 VAL 38 (chain D).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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163C TRP* 3.3 35.9 - - + -
9D LEU* 3.4 27.0 - - + +
10D ALA* 3.5 35.0 - - + +
33D ASP* 4.5 0.2 - - + -
35D ALA 3.8 11.9 - - - +
36D THR 2.8 11.8 + - - +
37D ASN* 1.3 77.0 - - - +
39D GLY* 1.3 59.0 + - - +
40D LEU* 2.9 5.4 + - - +
41D VAL* 2.9 30.7 + - - +
50D PHE* 3.8 16.6 - - + -
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Residues in contact with GLY 39 (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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12C TYR* 5.4 11.4 - - - +
163C TRP* 3.7 34.8 - - - -
36D THR 4.6 0.2 + - - -
37D ASN* 3.7 6.6 + - - +
38D VAL* 1.3 71.2 - - - +
40D LEU* 1.3 64.7 + - - +
41D VAL 2.9 3.4 - - - -
42D ASP* 2.8 23.8 + - - +
43D SER 4.3 0.5 + - - -
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Residues in contact with LEU 40 (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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12C TYR* 5.5 5.1 - - - -
15D PRO* 3.6 39.5 - - + -
18D LEU* 4.4 5.6 - - + -
37D ASN* 5.6 0.2 + - - -
38D VAL 2.9 3.0 + - - +
39D GLY* 1.3 76.4 - - - +
41D VAL* 1.3 63.2 + - - +
42D ASP 3.0 0.7 + - - -
43D SER* 2.9 35.2 + - - +
44D PHE* 3.4 20.3 - - + -
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Residues in contact with VAL 41 (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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163C TRP* 4.1 14.1 - - + -
9D LEU* 4.0 23.3 - - + -
18D LEU* 4.1 18.9 - - + +
28D LEU* 3.6 30.5 - - + -
31D SER* 4.7 0.4 - - - +
38D VAL* 2.9 18.3 + - + +
39D GLY 2.9 1.2 + - - -
40D LEU* 1.3 79.6 - - - +
42D ASP* 1.3 70.8 + - - +
44D PHE* 3.0 2.9 + - - -
45D PHE* 2.8 42.3 + - + +
48D ALA* 4.6 6.1 - - + +
50D PHE* 6.2 0.4 - - + -
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Residues in contact with ASP 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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159C GLY 4.3 2.1 - - - +
160C ARG* 3.8 5.0 - - - -
161C GLY* 3.0 34.4 + - - -
163C TRP* 3.1 31.8 + - - -
242C ARG* 3.7 31.3 + - - +
39D GLY 2.8 11.6 + - - +
41D VAL* 1.3 82.0 - - - +
43D SER* 1.3 58.6 + - - +
44D PHE 3.3 0.6 + - - -
45D PHE 4.9 0.3 - - - +
46D PRO* 3.3 35.8 - - - +
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Residues in contact with SER 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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242C ARG* 5.7 3.1 - - - +
22D LYS* 5.4 1.0 - - - +
39D GLY 4.3 0.4 + - - -
40D LEU* 2.9 26.0 + - - +
42D ASP* 1.3 79.5 - - - +
44D PHE* 1.3 72.5 + - - +
46D PRO* 5.2 0.2 - - - -
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Residues in contact with PHE 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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15D PRO* 4.6 3.8 - - + -
18D LEU* 3.8 38.1 - - + -
19D LYS* 3.8 35.0 - - + -
22D LYS* 2.7 47.8 + - + +
40D LEU* 3.4 33.4 - - + -
41D VAL* 3.0 4.7 + - - +
43D SER* 1.3 97.8 - - - +
45D PHE* 1.3 76.8 + - + +
46D PRO* 3.6 8.4 - - - +
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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