Contacts of the helix formed by residues 265 - 270 (chain E) in PDB entry 5YWB
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 SER 265 (chain E).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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238E ILE* 6.0 0.2 - - - -
239E PRO* 4.9 4.7 - - - +
259E HIS* 3.9 14.1 + - - -
261E ILE* 3.7 21.3 - - - -
262E ASP* 2.5 41.3 + - - -
263E SER 4.1 2.4 - - - +
264E ASN* 1.3 80.9 - - - +
266E PRO* 1.3 73.1 - - - +
267E LEU* 4.3 2.9 - - - -
268E TYR* 3.3 16.4 - - - +
269E ASP* 5.5 1.4 - - - +
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Residues in contact with PRO 266 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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219E VAL* 5.0 7.9 - - + -
221E ARG* 3.9 22.2 + - - +
236E VAL* 4.4 32.5 - - + -
237E ASP 4.6 13.9 - - - +
238E ILE* 5.1 10.8 - - + -
239E PRO* 5.6 1.6 - - + -
264E ASN 4.1 4.0 - - - +
265E SER* 1.3 87.3 - - - +
267E LEU* 1.3 59.6 + - + +
268E TYR 3.2 1.9 + - - -
269E ASP* 4.2 13.2 + - - +
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Residues in contact with LEU 267 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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189E ILE* 6.4 2.9 - - + -
198E PHE* 5.5 11.4 - - + -
219E VAL* 5.1 9.6 - - + -
221E ARG* 5.7 0.7 - - - +
238E ILE* 5.1 15.7 - - + -
261E ILE* 3.8 31.4 - - + -
265E SER* 3.3 1.6 - - - -
266E PRO* 1.3 76.9 - - + +
268E TYR* 1.3 55.3 + - - +
269E ASP 3.1 10.2 + - - -
270E LEU* 3.4 41.5 - - + +
281E LEU* 5.2 3.8 - - + -
283E ILE* 3.7 33.7 - - + -
309E ILE* 6.5 0.9 - - + -
346E ALA* 5.1 1.4 - - - +
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Residues in contact with TYR 268 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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195E ARG* 5.8 1.6 - - - -
261E ILE* 4.9 8.3 - - + -
262E ASP* 3.1 31.2 - - - +
263E SER* 3.7 26.3 + - - -
265E SER* 3.3 13.0 - - - +
266E PRO 3.2 2.2 - - - -
267E LEU* 1.3 75.4 - - - +
269E ASP* 1.3 75.3 + - - +
270E LEU 3.6 0.7 - - - -
346E ALA* 3.1 51.1 - - + +
347E ARG* 3.3 60.2 + - - -
350E ASP* 3.2 34.7 + - + +
351E GLU* 5.4 0.3 - - - +
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Residues in contact with ASP 269 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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265E SER 5.5 0.6 - - - +
266E PRO* 4.5 10.4 - - - +
267E LEU 3.1 2.2 + - - -
268E TYR* 1.3 100.7 - - - +
270E LEU* 1.3 65.9 + - - +
345E THR* 5.4 0.9 - - - -
347E ARG* 3.6 29.0 + - - +
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Residues in contact with LEU 270 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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267E LEU* 3.4 44.8 + - + +
268E TYR 3.6 1.0 - - - +
269E ASP* 1.3 82.7 - - - +
271E ALA* 1.3 72.8 + - - +
275E LEU* 4.4 15.0 - - + -
279E GLN* 4.5 16.6 - - - +
281E LEU* 3.7 26.2 - - + -
311E TRP* 4.8 11.4 - - + -
345E THR* 3.5 16.7 - - - -
346E ALA* 3.8 12.3 + - + +
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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