Contacts of the helix formed by residues 224 - 229 (chain A) in PDB entry 2WJZ
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 224 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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9A CYS* 3.4 22.9 - - + +
11A ASP* 3.9 13.5 - - - +
222A LEU* 5.9 0.2 - - + -
223A ALA* 1.3 78.1 - - - +
225A SER* 1.3 59.0 + - - +
226A VAL* 3.1 2.1 - - - +
227A PHE* 2.7 27.8 + - - +
228A HIS* 2.9 29.5 + - + +
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Residues in contact with SER 225 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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179A LYS* 3.0 21.2 + - - +
224A ALA* 1.3 79.1 - - - +
226A VAL* 1.3 62.4 + - - +
228A HIS* 4.0 10.0 - - - -
229A PHE* 2.9 60.4 + - - +
231A GLU* 4.5 0.9 - - - -
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Residues in contact with VAL 226 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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179A LYS* 4.2 3.6 - - - +
204A ALA* 3.2 33.4 - - + +
205A GLY* 3.9 11.2 - - - -
210A PHE* 4.9 0.2 - - + -
223A ALA* 3.6 28.9 - - + -
224A ALA 3.0 1.2 + - - -
225A SER* 1.3 80.8 - - - +
227A PHE* 1.3 67.8 + - + +
231A GLU* 2.9 50.7 + - + +
232A ILE* 3.1 33.8 + - + -
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Residues in contact with PHE 227 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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6A ILE* 3.7 22.0 - - + -
7A ILE 4.0 13.9 - - - -
8A ALA* 4.4 10.5 - - + -
23A PHE* 3.1 22.0 - - - -
39A TYR* 3.4 20.9 - - + +
44A ILE* 4.5 6.5 - - + -
210A PHE* 3.7 22.2 - + - -
223A ALA* 3.5 37.7 - - + -
224A ALA* 2.7 12.1 + - - +
226A VAL* 1.3 75.3 - - + +
228A HIS* 1.3 64.9 + - + +
229A PHE 3.2 1.1 - - - -
230A ARG* 3.1 8.0 + - - -
232A ILE* 3.8 30.4 - - + +
234A VAL* 4.3 15.7 - - + -
237A LEU* 4.2 12.6 - - + -
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Residues in contact with HIS 228 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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8A ALA* 5.4 0.2 - - + -
9A CYS 3.1 28.0 + - - -
10A LEU* 4.3 9.2 - - + -
11A ASP* 4.7 4.0 + - - -
17A VAL* 4.8 11.5 - - + +
18A VAL 5.5 3.6 - - - -
20A GLY 4.2 4.9 - - - +
21A THR* 3.7 14.8 - - - +
22A ASN* 3.0 24.3 + - - +
23A PHE* 3.6 11.3 - - - -
35A LEU* 3.8 13.3 - - + +
39A TYR* 2.5 46.6 + + - -
224A ALA* 2.9 31.2 + - + +
225A SER* 4.0 4.0 - - - +
227A PHE* 1.3 76.0 - - + +
229A PHE* 1.3 71.5 + + + +
230A ARG 3.2 3.0 + - - -
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Residues in contact with PHE 229 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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18A VAL 5.8 0.2 - - - -
19A LYS* 3.9 32.5 - - + -
20A GLY 4.5 2.7 - - - -
21A THR* 5.2 0.4 - - - -
22A ASN* 3.7 32.1 - - - +
179A LYS* 4.7 3.4 - - - -
225A SER* 2.9 39.4 + - - +
228A HIS* 1.3 90.2 - + + +
230A ARG* 1.3 70.5 + - - +
231A GLU* 3.1 28.3 + - + +
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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