Contacts of the helix formed by residues 234 - 239 (chain H) in PDB entry 2WWB
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 ASN 234 (chain H).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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42H VAL* 6.5 0.9 - - + -
122H THR* 5.9 4.3 - - - -
125H ALA* 5.9 0.9 - - - -
233H LEU* 1.4 79.6 - - - +
235H LEU* 1.4 58.7 + - - +
236H LEU* 3.1 26.8 + - + +
237H GLN* 3.1 42.0 + - - +
238H LEU* 3.0 31.8 + - - +
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Residues in contact with LEU 235 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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34H ILE* 6.3 0.2 - - + -
35H VAL* 3.5 42.4 - - + +
38H VAL* 3.8 38.1 - - + -
39H PHE* 4.2 14.7 - - + +
42H VAL* 5.8 1.1 - - + -
121H ALA* 4.4 8.1 - - + +
124H SER* 5.8 0.4 - - - +
125H ALA* 3.5 30.5 - - + +
128H ALA* 6.0 1.1 - - + -
234H ASN* 1.4 71.4 - - - +
236H LEU* 1.4 60.6 + - + +
237H GLN 3.3 0.2 - - - -
238H LEU* 3.7 11.2 - - + +
239H ALA* 3.0 40.8 + - + +
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Residues in contact with LEU 236 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
39H PHE* 3.8 31.0 - - + -
42H VAL* 3.7 30.7 - - + -
43H ASN* 5.2 9.0 - - + -
226H GLU* 4.5 3.1 - - - +
234H ASN* 3.1 25.2 + - + +
235H LEU* 1.4 77.6 - - - +
237H GLN* 1.3 56.9 + - + +
240H PRO* 3.2 31.6 - - + +
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Residues in contact with GLN 237 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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206H LEU* 3.6 22.5 - - + +
226H GLU* 4.0 19.1 - - - +
227H THR 3.5 24.0 + - - +
228H ALA* 3.5 14.5 - - - +
232H SER 5.5 0.4 + - - -
233H LEU* 3.3 11.1 - - - -
234H ASN* 3.1 46.0 + - - +
235H LEU 3.3 0.2 - - - -
236H LEU* 1.3 78.5 - - + +
238H LEU* 1.4 62.7 + - + +
239H ALA 3.6 0.2 + - - -
246H ARG* 2.8 27.4 + - - -
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Residues in contact with LEU 238 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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125H ALA* 3.5 40.2 - - + +
126H ILE* 4.0 12.8 - - + +
129H THR* 3.8 22.1 - - + +
206H LEU* 3.8 20.2 - - + -
233H LEU* 3.8 34.5 - - + -
234H ASN 3.0 26.4 + - - +
235H LEU* 3.5 13.4 + - + -
237H GLN* 1.4 76.6 - - + +
239H ALA* 1.4 60.7 + - - +
240H PRO* 4.0 0.7 - - - -
246H ARG* 3.1 22.7 + - - +
248H VAL* 4.5 4.0 - - - +
250H TRP* 5.4 3.6 - - + -
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Residues in contact with ALA 239 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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35H VAL* 5.8 2.9 - - + -
39H PHE* 4.4 1.7 - - - -
138H ARG* 3.4 17.7 - - - +
235H LEU* 3.0 27.7 + - + +
238H LEU* 1.4 79.8 - - - +
240H PRO* 1.3 68.0 - - - +
241H GLY 3.3 0.5 + - - -
242H ALA* 3.1 15.9 + - - -
243H HIS 4.6 1.3 - - - +
244H LEU* 3.9 25.4 - - + +
245H GLY 4.7 2.7 - - - +
246H ARG* 4.4 0.2 - - - -
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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