Contacts of the helix formed by residues 201 - 205 (chain P) in PDB entry 3E8E
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 THR 201 (chain P).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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166P ASP* 2.9 13.3 + - - +
167P LEU 5.7 0.2 - - - -
168P LYS* 2.8 36.7 + - + +
200P GLY* 1.3 72.5 - - - -
202P PRO* 1.4 66.4 - - + +
203P GLU* 4.2 8.5 - - - +
204P TYR* 2.7 43.0 + - + +
205P LEU* 3.3 10.6 + - - +
19Q ARG* 4.0 25.4 - - + +
20Q ASN 3.8 10.3 - - - +
21Q ALA* 3.6 5.2 - - - +
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Residues in contact with PRO 202 (chain P).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
200P GLY 4.2 0.2 - - - -
201P THR* 1.4 91.0 - - + +
203P GLU* 1.3 68.4 + - - +
204P TYR 3.2 1.0 + - - -
205P LEU* 3.3 11.8 + - + +
243P PRO* 4.2 8.5 - - + -
246P ILE* 3.8 16.8 - - + +
247P TYR* 3.5 36.5 - - + +
250P ILE* 3.3 20.8 - - - +
15Q ARG* 4.2 14.1 - - - +
20Q ASN 3.9 11.0 - - - +
22Q ILE* 3.6 21.5 - - + -
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Residues in contact with GLU 203 (chain P).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
201P THR* 3.0 2.7 + - - +
202P PRO* 1.3 77.6 - - - +
204P TYR* 1.3 76.1 + - + +
205P LEU 3.5 1.1 + - - +
222P TRP* 5.1 0.2 + - - -
226P VAL* 3.7 17.2 - - - +
236P PRO* 4.2 15.1 - - + +
238P PHE* 3.5 29.4 - - - +
239P PHE* 4.7 4.0 - - + +
246P ILE* 3.6 24.0 - - + +
250P ILE* 4.3 8.1 - - - +
10Q PHE* 5.8 0.2 - - - -
15Q ARG* 3.1 41.6 + - - +
19Q ARG* 3.2 31.6 + - - +
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Residues in contact with TYR 204 (chain P).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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166P ASP* 6.4 0.4 - - - -
167P LEU 3.1 27.6 - - - +
168P LYS* 4.0 10.3 - - + -
169P PRO* 3.2 20.4 - - + +
201P THR* 2.7 27.9 + - + +
203P GLU* 1.3 80.7 - - + +
205P LEU* 1.3 62.2 + - - -
206P ALA 3.5 2.1 + - - -
209P ILE* 5.6 0.3 - - - +
219P VAL 4.9 1.0 - - - +
222P TRP* 3.8 11.1 - - - -
223P ALA* 3.5 31.8 - - + +
226P VAL* 3.5 17.7 - - + -
227P LEU* 3.5 36.4 - - + -
230P GLU* 2.7 30.9 + - - +
19Q ARG* 4.0 18.6 - - - -
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Residues in contact with LEU 205 (chain P).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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198P LEU* 4.5 17.5 - - + -
199P CYS 3.1 28.9 - - - +
200P GLY* 3.9 14.6 - - - -
201P THR 3.3 9.8 + - - +
202P PRO* 3.3 10.5 + - + +
203P GLU 3.5 0.2 - - - -
204P TYR* 1.3 76.6 - - - +
206P ALA* 1.3 68.9 + - - +
209P ILE* 3.9 16.6 - - + -
210P ILE* 3.9 17.0 - - + -
222P TRP* 3.2 12.2 + - - -
247P TYR* 3.6 31.6 - - + +
250P ILE* 3.3 17.2 - - - +
22Q ILE* 5.4 4.7 - - + -
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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