Contacts of the strand formed by residues 447 - 449 (chain D) in PDB entry 2O1S
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 VAL 447 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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445D GLU 4.4 3.6 - - - +
446D MSE 1.3 76.9 - - - +
448D ILE* 1.3 61.7 + - - +
449D MSE 4.2 8.7 - - + -
467D TYR* 3.7 38.4 - - + +
471D PRO 3.2 12.1 + - - +
472D SER* 3.3 14.0 - - - -
473D ALA* 2.8 33.0 + - - +
494D ILE* 4.8 9.2 - - + -
534D PHE* 4.0 24.7 - - + -
536D LYS 3.2 8.3 - - - +
537D PRO* 4.3 13.9 - - + -
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Residues in contact with ILE 448 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
418D ILE* 6.5 0.2 - - + -
436D ASP 4.7 2.0 - - - +
437D LEU* 3.8 28.0 - - + +
440D LEU* 3.4 41.5 - - + +
441D ARG* 3.5 30.1 - - + +
446D MSE 3.7 12.6 - - + -
447D VAL* 1.3 77.7 - - - +
449D MSE 1.3 64.1 + - - +
473D ALA* 3.8 6.5 - - + +
475D ARG* 5.3 2.2 - - + -
534D PHE* 3.5 3.8 - - - -
535D VAL* 2.8 42.6 + - + -
536D LYS* 2.6 23.9 + - + +
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Residues in contact with MSE 449 (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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447D VAL* 4.2 6.1 - - + -
448D ILE* 1.3 74.3 - - - +
450D THR* 1.3 66.7 + - - +
451D PRO* 3.4 2.6 - - - +
460D MSE 3.2 58.6 - - + +
463D THR* 4.2 10.3 - - + -
464D GLY* 3.4 22.4 - - - -
472D SER* 4.1 13.7 - - - -
473D ALA 2.8 18.1 + - - +
474D VAL* 3.5 15.6 - - + -
475D ARG* 3.2 26.5 + - - +
494D ILE* 6.1 0.2 - - + -
533D ARG 3.4 5.8 - - - +
534D PHE* 3.4 38.1 - - + -
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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