Contacts of the helix formed by residues 333 - 337 (chain B) in PDB entry 5E1T
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 TYR 333 (chain B).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
297B TYR* 6.6 0.2 - + - -
300B LYS* 4.3 10.1 - - - -
301B TYR* 3.3 62.2 - + + +
302B GLY 5.2 4.5 + - - +
331B GLY* 3.0 2.5 - - - -
332B GLU* 1.3 99.2 - - + +
334B ASP* 1.3 63.8 + - - +
335B ALA 3.0 4.8 + - - -
336B LEU* 3.1 23.7 + - + +
337B LEU* 3.0 16.5 - - + +
262C GLU* 4.0 19.1 + - - -
270C LEU* 4.0 24.2 + - + -
272C LYS* 4.4 15.0 - - + -
407C PHE* 3.9 14.8 - + - -
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 334 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
302B GLY 5.1 2.4 - - - +
303B TYR* 5.4 1.2 - - - -
304B LYS 5.3 2.6 + - - -
329B MET 4.7 1.1 - - - +
330B ARG* 3.2 16.1 - - - +
331B GLY* 2.7 42.6 + - - +
332B GLU 3.7 0.4 - - - -
333B TYR* 1.3 77.3 - - - +
335B ALA* 1.3 63.0 + - - +
336B LEU 3.1 1.2 + - - -
337B LEU* 3.2 17.5 + - - +
339B TRP* 3.0 47.0 + - + -
373B ARG* 3.7 22.7 + - - +
374B PRO* 3.8 8.1 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 335 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
333B TYR 3.0 0.6 + - - -
334B ASP* 1.3 78.1 - - - +
336B LEU* 1.3 58.9 + - + +
337B LEU 3.5 2.5 + - - +
373B ARG* 3.4 27.5 - - - +
352C GLN* 3.4 46.3 - - - +
402C LYS* 4.7 2.9 - - - +
407C PHE* 3.8 22.4 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 336 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
333B TYR* 3.1 20.2 + - + +
334B ASP 3.1 1.2 - - - -
335B ALA* 1.3 80.7 - - + +
337B LEU* 1.3 67.0 + - + +
338B PRO* 4.2 3.8 - - - +
270C LEU* 5.1 7.4 - - + -
350C LEU* 3.5 40.6 - - + -
351C ASP 5.5 0.7 - - - +
352C GLN* 4.5 13.2 - - + +
357C HIS* 5.9 1.3 - - + -
407C PHE* 3.5 53.4 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 337 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
301B TYR 3.6 10.5 - - - +
302B GLY* 3.6 42.0 - - - +
303B TYR* 3.9 29.2 - - + +
333B TYR* 3.0 33.0 - - + +
334B ASP* 3.2 17.7 + - - +
335B ALA 4.8 2.1 - - - +
336B LEU* 1.3 85.9 - - + +
338B PRO* 1.3 76.0 - - + +
339B TRP* 3.2 17.5 + - - +
----------------------------------------------------------
Back to top of page
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
------------------------------------------------------------
Atomic class I II III IV V VI VII VIII
------------------------------------------------------------
I (Hydrophilic) + + + - + + + +
II (Acceptor) + - + - + + + -
III (Donor) + + - - + + - +
IV (Hydrophobic) - - - + + + + +
V (Aromatic) + + + + + + + +
VI (Neutral) + + + + + + + +
VII (Neutral-donor) + + - + + + - +
VIII (Neutral-acceptor) + - + + + + + -
------------------------------------------------------------
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