Contacts of the helix formed by residues 16 - 22 (chain B) in PDB entry 1WZN
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 TYR 16 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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4B LEU* 4.0 8.8 - - + +
12B TYR* 2.9 68.6 + + + +
13B ASP 3.4 5.2 - - - +
14B THR 3.2 0.2 - - - -
15B ILE* 1.3 91.4 - - + +
17B ARG* 1.3 64.2 + - - +
18B ARG* 3.1 3.8 - - - +
19B ARG* 3.1 23.7 + - + +
20B ILE* 3.1 14.6 + - - +
54B ILE* 4.9 2.5 - - + -
113B PHE* 3.5 36.7 - + - -
159B TRP* 5.4 3.1 - + - -
185B PHE* 5.0 3.5 - - - -
187B ARG* 2.7 35.3 + - - -
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Residues in contact with ARG 17 (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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13B ASP 3.1 11.1 + - - +
14B THR* 3.3 15.7 + - - +
15B ILE 3.4 2.0 + - - -
16B TYR* 1.3 75.7 - - - +
18B ARG* 1.3 85.5 + - - +
20B ILE* 3.2 9.4 + - + +
21B GLU* 2.7 74.7 + - + +
161B GLU* 2.8 38.5 + - - +
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Residues in contact with ARG 18 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
15B ILE 5.1 0.2 + - - -
16B TYR* 3.1 1.1 - - - -
17B ARG* 1.3 104.8 - - - +
19B ARG* 1.3 65.9 + - - +
21B GLU* 3.2 19.2 + - - +
22B ARG* 3.4 24.3 + - - +
159B TRP* 5.2 23.1 - - + +
161B GLU* 4.5 9.0 + - - +
175C GLU* 4.6 16.8 + - - -
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Residues in contact with ARG 19 (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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12B TYR* 5.5 0.2 - - - -
16B TYR* 3.1 26.1 + - + +
18B ARG* 1.3 78.6 - - - +
20B ILE* 1.3 60.1 + - - +
22B ARG* 3.5 26.2 + - - +
23B VAL* 3.5 19.4 + - - +
26B GLU* 3.1 28.9 + - - -
54B ILE* 3.8 29.2 - - - +
55B PRO* 3.5 23.7 - - - +
112B PHE* 3.6 11.7 - - - +
113B PHE* 4.1 35.8 - - + +
1002B SAH 2.7 37.1 + - - -
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Residues in contact with ILE 20 (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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13B ASP* 3.6 44.4 - - + +
16B TYR 3.1 6.8 + - - +
17B ARG* 3.4 8.7 - - - +
18B ARG 3.1 0.2 - - - -
19B ARG* 1.3 73.8 - - - +
21B GLU* 1.3 61.2 + - + +
22B ARG 3.0 9.9 + - - -
23B VAL* 3.2 22.2 + - + +
54B ILE* 3.4 41.3 - - + -
82B LYS* 5.2 1.3 - - - +
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Residues in contact with GLU 21 (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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17B ARG* 2.7 60.2 + - + +
18B ARG* 3.2 9.9 + - - +
20B ILE* 1.3 77.3 - - + +
22B ARG* 1.3 58.8 + - + +
23B VAL 3.7 0.2 - - - -
24B LYS* 5.3 2.6 + - - +
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Residues in contact with ARG 22 (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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18B ARG* 3.4 19.4 + - - +
19B ARG* 3.6 32.5 + - - +
20B ILE 3.0 0.4 - - - -
21B GLU* 1.3 78.1 - - - +
23B VAL* 1.3 65.2 + - - +
24B LYS* 3.2 3.9 + - - +
25B ALA* 3.3 13.2 + - + +
26B GLU* 2.5 52.9 + - - +
113B PHE* 4.6 13.1 - - - -
242B ARG* 4.2 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