Contacts of the helix formed by residues 284 - 289 (chain D) in PDB entry 2V90
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 LEU 284 (chain D).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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338B SER* 3.9 22.7 - - - +
256D PRO* 6.6 0.7 - - + -
257D GLN* 4.8 26.0 - - + +
258D GLY 5.2 2.2 - - - +
260D GLY* 3.5 29.8 - - - +
281D ASP* 3.6 25.4 + - + +
282D PRO 3.3 8.2 - - - +
283D GLY* 1.3 87.4 - - - +
285D PRO* 1.4 79.2 - - + +
286D ALA 3.1 1.8 + - - -
287D LYS* 3.5 2.8 + - - +
288D LYS* 3.0 25.1 + - - +
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Residues in contact with PRO 285 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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252D LEU* 4.6 6.1 - - + -
253D GLU 3.1 37.0 - - - +
255D GLY* 4.3 6.5 - - - +
258D GLY 3.8 18.8 - - - +
259D PHE* 3.3 14.4 - - - +
284D LEU* 1.4 94.1 - - + +
286D ALA* 1.3 55.3 + - - +
288D LYS* 3.4 6.6 + - + +
289D ALA* 2.8 33.9 + - - +
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Residues in contact with ALA 286 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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252D LEU* 3.8 11.2 - - + -
259D PHE 2.9 20.3 + - - +
260D GLY 3.8 13.9 - - - +
261D PHE* 3.8 11.9 - - + -
280D VAL* 4.1 2.9 - - + -
284D LEU 3.1 0.4 + - - -
285D PRO* 1.3 69.9 - - - +
287D LYS* 1.3 68.4 + - - +
289D ALA 3.1 8.1 + - - -
290D GLY 3.3 0.3 + - - -
291D MET* 2.9 50.7 + - + +
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Residues in contact with LYS 287 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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333B ALA* 5.1 10.8 - - + +
336B GLU* 3.5 33.8 + - - +
260D GLY 4.7 0.2 + - - -
280D VAL* 3.3 26.7 + - + +
281D ASP 3.2 24.6 + - - +
282D PRO* 4.4 14.1 - - - +
283D GLY 4.5 1.1 - - - +
284D LEU 3.5 5.1 + - - +
286D ALA* 1.3 77.7 - - - +
288D LYS* 1.3 66.0 + - + +
289D ALA 3.0 1.0 + - - -
290D GLY* 3.1 14.2 + - - -
291D MET 4.2 7.5 - - - +
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Residues in contact with LYS 288 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
333B ALA 5.6 0.9 - - - -
334B ASP* 3.5 39.2 + - + +
336B GLU* 2.9 32.5 + - + +
337B THR* 2.9 21.2 + - - +
283D GLY* 3.7 14.6 - - - +
284D LEU 3.0 23.3 + - - +
285D PRO* 3.6 6.1 - - + +
287D LYS* 1.3 82.8 - - + +
289D ALA* 1.3 56.2 + - - +
290D GLY 3.4 1.0 + - - -
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Residues in contact with ALA 289 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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248D ARG* 4.3 0.5 + - - -
250D LEU* 3.8 20.1 - - + +
251D HIS 4.1 20.6 + - - +
252D LEU* 4.3 14.4 - - + -
285D PRO 2.8 18.4 + - - +
286D ALA 3.8 3.1 - - - +
287D LYS 3.0 0.8 - - - -
288D LYS* 1.3 77.4 - - - +
290D GLY* 1.3 57.6 + - - +
291D MET* 3.5 3.0 + - + -
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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