Contacts of the helix formed by residues 183 - 187 (chain A) in PDB entry 2WJP
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 HIS 183 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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115A LYS* 5.7 2.4 + - - -
160A SER* 4.5 1.3 - - - -
161A PHE* 3.6 36.7 - + + -
182A ASP* 1.3 108.2 + - - +
184A MET* 1.3 58.8 + - - +
185A ASP* 3.1 14.2 + - - +
186A ARG 2.9 17.3 + - - -
187A TYR* 3.3 20.3 - - + -
194A TYR* 3.8 20.6 - + + -
198A KCX 4.1 10.5 + - - -
348A LYS* 4.1 12.8 + - - +
1441A D17 3.2 45.6 + + - -
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Residues in contact with MET 184 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
181A GLU* 3.5 37.2 - - + +
182A ASP 3.1 27.5 + - - +
183A HIS* 1.3 76.6 - - - +
185A ASP* 1.3 62.1 + - - +
186A ARG 3.0 1.2 + - - -
187A TYR* 3.2 24.4 + - + +
188A PRO* 4.3 2.4 - - - +
190A GLY* 3.8 40.6 - - - +
191A LEU* 4.0 9.0 - - + +
194A TYR* 3.9 18.2 - - + -
348A LYS 3.5 14.3 + - - +
349A SER* 4.4 14.6 - - - +
350A ALA* 5.3 0.9 - - - -
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Residues in contact with ASP 185 (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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183A HIS* 3.4 18.2 + - - +
184A MET* 1.3 76.2 - - - +
186A ARG* 1.3 74.9 + - - +
187A TYR 3.6 0.2 - - - -
188A PRO* 5.5 1.4 - - - +
346A ASP* 4.9 5.5 - - - +
348A LYS* 3.3 39.8 + - - +
349A SER* 4.5 8.3 - - - +
1442A DMS 5.2 6.1 - - - +
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Residues in contact with ARG 186 (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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72A PRO* 2.8 29.5 + - - +
73A GLY* 3.8 5.2 + - - -
74A ILE 3.3 18.8 + - - -
75A ALA* 3.7 27.0 - - + +
76A LEU 4.7 1.6 - - - +
161A PHE* 3.4 44.4 - - + +
164A GLU* 5.3 1.2 + - - -
183A HIS 2.9 7.9 + - - +
185A ASP* 1.3 90.5 - - - +
187A TYR* 1.3 69.1 + - - +
188A PRO* 3.6 10.2 - - - +
193A GLN* 5.3 0.3 + - - -
1441A D17 4.0 3.2 - - - -
1442A DMS 3.1 36.6 - - + +
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Residues in contact with TYR 187 (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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160A SER* 2.8 25.4 + - - -
161A PHE* 3.4 22.7 - + - -
164A GLU* 2.6 36.1 + - - -
183A HIS* 3.3 24.8 + - + +
184A MET* 3.2 20.8 + - + +
186A ARG* 1.3 82.3 - - - +
188A PRO* 1.3 59.9 - - - +
189A PHE 3.1 5.2 - - - -
190A GLY* 2.8 33.5 + - - +
193A GLN* 3.3 31.9 - - + +
194A TYR* 3.5 42.2 - + + -
197A ALA* 3.8 3.1 - - + +
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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