Contacts of the helix formed by residues 282 - 288 (chain B) in PDB entry 3GEB
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 PHE 282 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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276B ASP* 3.4 14.9 + - - +
280B ILE* 3.7 7.9 - - + +
281B ILE* 1.3 75.7 - - - +
283B HIS* 1.3 99.0 + + - +
284B SER* 3.2 2.3 + - - -
285B LEU* 3.0 22.2 + - + +
286B LEU* 3.7 16.9 + - + +
305B GLY* 3.5 24.5 - - - -
308B MET* 3.9 11.7 - - + -
309B GLU* 3.6 37.0 - - + -
312B ILE* 3.9 11.4 - - + -
313B PHE* 5.4 5.6 - + - -
457B LYS* 3.4 22.2 - - + +
461B TYR* 3.5 18.8 - - + +
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Residues in contact with HIS 283 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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276B ASP* 3.0 34.1 + - + +
277B GLU* 6.1 0.9 - - + -
282B PHE* 1.3 105.6 - + - +
284B SER* 1.3 57.7 + - - +
286B LEU* 2.9 30.7 + - + +
287B THR* 3.1 22.6 + - + +
448B THR* 6.2 4.5 - - + -
449B THR* 4.5 11.4 + - - +
457B LYS* 3.9 9.4 + - - -
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Residues in contact with SER 284 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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276B ASP* 4.2 1.4 + - - -
277B GLU* 3.8 18.8 + - - +
281B ILE* 3.5 18.2 - - - +
282B PHE 4.4 1.6 + - - -
283B HIS* 1.3 77.3 - - - +
285B LEU* 1.3 57.5 + - - +
286B LEU 3.3 0.2 - - - -
287B THR* 3.5 11.0 - - - -
288B GLY 3.3 14.6 + - - -
289B THR* 3.5 13.2 - - - -
290B PHE* 3.1 37.7 + - - +
291B ALA 4.6 0.2 + - - -
293B ARG* 3.8 13.2 - - - -
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Residues in contact with LEU 285 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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281B ILE* 3.4 42.4 - - + +
282B PHE* 3.0 14.7 + - + +
283B HIS 3.0 0.8 - - - -
284B SER* 1.3 77.1 - - - +
286B LEU* 1.3 61.0 + - - +
288B GLY* 4.1 2.8 + - - -
290B PHE* 4.0 10.5 - - + -
301B SER* 3.5 22.4 - - - +
302B VAL* 3.2 28.8 + - - +
304B ILE* 4.5 2.7 - - + -
305B GLY* 4.0 20.0 - - - +
308B MET* 6.0 0.9 - - + -
417B LEU* 3.6 19.5 - - + -
420B LEU* 3.4 31.4 - - + -
461B TYR* 4.8 2.0 - - - +
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Residues in contact with LEU 286 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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282B PHE* 4.1 28.3 - - + +
283B HIS* 2.9 16.4 + - + +
285B LEU* 1.3 79.8 - - - +
287B THR* 1.3 63.9 + - + +
288B GLY 3.3 0.6 + - - -
302B VAL* 4.1 19.2 - - + +
305B GLY* 3.7 30.1 - - - +
306B LEU* 3.8 24.0 - - + +
309B GLU* 3.9 20.6 - - - +
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Residues in contact with THR 287 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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283B HIS* 3.2 20.2 - - + +
284B SER* 3.5 4.9 - - - -
286B LEU* 1.3 79.4 - - + +
288B GLY* 1.3 56.8 + - - +
289B THR* 2.7 39.7 + - - +
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Residues in contact with GLY 288 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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284B SER 3.3 6.8 + - - -
285B LEU* 4.1 5.3 + - - -
286B LEU 3.3 4.0 - - - -
287B THR* 1.3 77.5 + - - +
289B THR* 1.3 65.0 + - - +
290B PHE 3.2 3.1 + - - -
291B ALA* 3.3 11.3 + - - +
292B SER* 3.1 23.8 + - - -
298B THR* 5.0 8.2 - - - +
301B SER* 6.0 0.7 - - - -
302B VAL* 5.2 6.7 - - - -
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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