Contacts of the helix formed by residues 392 - 397 (chain B) in PDB entry 6BFN
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 PRO 392 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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390B TYR 4.3 0.2 - - - +
391B LEU* 1.3 92.0 - - + +
393B GLU* 1.3 61.5 - - - +
394B GLU* 3.2 35.2 - - - +
395B TYR* 4.0 8.1 - - + -
396B ILE* 3.1 23.3 + - - +
405B THR* 3.9 21.8 - - + +
408B PHE* 3.5 29.4 - - + -
435B LYS* 4.8 1.3 - - - +
508B ARG* 3.5 20.6 - - - +
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Residues in contact with GLU 393 (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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392B PRO* 1.3 73.1 - - - +
394B GLU* 1.3 61.5 + - - +
395B TYR 3.3 0.7 - - - -
396B ILE* 3.8 25.8 - - + +
397B LYS* 3.1 40.1 + - + +
435B LYS* 3.9 13.8 + - - +
436B ASP* 5.5 3.0 - - - +
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Residues in contact with GLU 394 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
392B PRO* 3.2 19.5 - - - +
393B GLU* 1.3 80.7 + - - +
395B TYR* 1.3 61.9 + - - +
397B LYS* 4.2 2.0 - - - -
398B THR* 3.0 30.9 + - - -
400B ARG* 3.4 30.6 + - - +
405B THR* 4.5 3.6 + - - -
503B ARG 3.9 8.8 - - - +
505B ALA* 3.7 9.8 - - + +
506B LYS* 5.7 3.6 - - - +
508B ARG* 2.9 42.9 + - - -
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Residues in contact with TYR 395 (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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339B GLY* 5.8 0.9 - - - -
383B THR 4.7 0.9 + - - -
384B VAL* 3.5 26.3 - - + +
385B ARG* 3.5 38.4 + - - +
391B LEU* 3.6 40.6 - - + -
392B PRO* 3.7 19.8 + - + -
393B GLU 3.3 0.2 - - - -
394B GLU* 1.3 85.1 - - - +
396B ILE* 1.3 62.2 + - - +
397B LYS 3.2 0.2 - - - -
398B THR* 4.8 0.2 - - - -
399B GLY* 2.9 45.3 + - - +
400B ARG* 3.1 31.0 - - - +
401B LEU* 5.1 3.6 - - + -
405B THR* 4.2 18.2 - - + +
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Residues in contact with ILE 396 (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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384B VAL* 3.7 25.2 - - + +
388B LEU* 3.7 34.8 - - + +
391B LEU* 4.0 11.7 - - + +
392B PRO 3.1 18.1 + - - +
393B GLU* 3.8 28.7 - - + +
394B GLU 3.5 0.2 - - - -
395B TYR* 1.3 79.6 - - - +
397B LYS* 1.3 69.9 + - + +
398B THR 3.6 0.2 + - - -
435B LYS* 4.0 15.5 - - - +
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Residues in contact with LYS 397 (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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393B GLU* 3.1 28.1 + - + +
394B GLU* 4.6 3.1 - - - +
396B ILE* 1.3 86.9 - - + +
398B THR* 1.3 63.5 + - - +
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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