Contacts of the helix formed by residues 359 - 363 (chain B) in PDB entry 2BAW
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 359 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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357B ARG* 3.4 19.7 - - - +
358B LYS* 1.4 93.7 - - + +
360B PHE* 1.3 75.4 + - + +
361B SER 3.3 2.2 - - - -
362B ASP* 3.0 22.7 - - - +
363B ILE* 3.5 12.1 - - - +
456B ILE* 4.9 12.1 - - + +
459B THR* 5.7 4.0 - - + -
460B GLU* 3.3 33.0 - - + +
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Residues in contact with PHE 360 (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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278B SER* 3.9 31.2 - - - +
279B VAL* 3.7 29.4 - - + -
282B PHE* 3.6 48.2 - + + -
356B LEU* 4.8 6.5 - - + -
357B ARG* 3.3 8.9 + - - +
359B PRO* 1.3 91.0 - - + +
361B SER* 1.3 55.4 + - - +
363B ILE* 3.1 15.7 - - + +
364B ILE* 2.7 31.1 - - + +
456B ILE* 4.2 18.4 - - + -
460B GLU* 3.7 24.2 - - + -
463B THR* 3.9 14.4 - - + -
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Residues in contact with SER 361 (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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353B LEU 4.0 8.5 - - - +
354B ARG* 3.7 22.1 - - - +
356B LEU* 3.0 26.2 + - - +
357B ARG 3.1 12.9 + - - -
358B LYS* 3.4 17.0 + - - -
360B PHE* 1.3 77.7 - - - +
362B ASP* 1.3 61.3 + - - +
363B ILE 3.5 0.2 - - - -
364B ILE* 3.7 18.7 - - - +
365B GLU* 4.0 10.7 - - - +
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Residues in contact with ASP 362 (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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358B LYS 3.5 16.2 - - - +
359B PRO* 3.0 19.8 - - - +
361B SER* 1.3 77.6 + - - +
363B ILE* 1.3 62.8 + - - +
364B ILE 3.4 2.0 - - - -
365B GLU* 4.7 4.0 - - + +
366B PRO* 3.2 23.8 - - + +
452B MET* 3.4 18.3 - - - +
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Residues in contact with ILE 363 (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* 3.5 38.8 - - + -
285B CYS* 5.9 1.1 - - - -
359B PRO 3.5 17.0 - - - +
360B PHE* 3.1 24.9 - - + +
362B ASP* 1.3 81.0 - - - +
364B ILE* 1.3 63.9 + - + +
366B PRO* 4.1 0.7 - - - -
367B LYS* 2.8 32.0 + - - +
449B HIS* 5.0 3.1 - - + +
452B MET* 3.8 35.4 - - + -
453B MET* 4.8 2.9 - - - -
456B ILE* 4.2 13.5 - - + -
478B VCA 3.9 24.6 - - + +
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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