Contacts of the strand formed by residues 310 - 315 (chain D) in PDB entry 4PS1


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.
For CSU analysis of other PDB entry

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 310 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235D  TYR*     3.8    15.0    -      -       +      -
    237D  LEU*     3.9    33.4    -      -       +      -
    299D  TYR*     4.2    12.3    -      +       +      -
    304D  HIS*     3.7    22.7    -      +       -      +
    309D  CYS*     1.3    74.2    -      -       -      +
    311D  ILE*     1.3    74.1    +      -       -      +
    312D  CYS*     4.1    15.3    -      -       +      -
    340D  PHE*     3.7    48.7    -      +       -      -
    348D  LEU*     3.6    24.7    -      -       +      -
    352D  PRO      3.1     9.9    +      -       -      +
    353D  LYS*     3.5     6.9    -      -       +      -
    354D  VAL*     2.9    25.3    +      -       -      +
    355D  PHE*     4.3     9.9    -      +       -      -
----------------------------------------------------------
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Residues in contact with ILE 311 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235D  TYR      3.0    10.1    +      -       -      +
    236D  CYS*     3.3    20.7    -      -       -      -
    237D  LEU*     2.8    25.2    +      -       -      +
    274D  PHE*     3.4    35.7    -      -       +      -
    279D  PHE*     3.5    32.8    -      -       +      -
    309D  CYS*     4.1     5.6    -      -       -      -
    310D  PHE*     1.3    85.5    -      -       -      +
    312D  CYS*     1.3    64.1    +      -       -      +
    313D  CYS*     4.1     4.7    -      -       -      -
    354D  VAL*     3.2    15.9    -      -       +      +
    356D  PHE*     4.1    25.1    -      -       +      -
    476D  PHE*     4.2     9.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 312 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    237D  LEU*     3.6    17.5    -      -       +      -
    239D  ILE*     4.3     4.5    -      -       -      -
    296D  LEU*     4.2    19.1    -      -       -      -
    310D  PHE*     4.1    13.2    -      -       +      -
    311D  ILE*     1.3    75.6    -      -       -      +
    313D  CYS*     1.3    64.3    +      -       -      +
    314D  ILE*     4.0    21.8    +      -       -      +
    354D  VAL      2.8     8.9    +      -       -      -
    355D  PHE*     3.2    36.4    -      -       +      +
    356D  PHE      2.9    24.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 313 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236D  CYS*     4.1    10.8    -      -       -      -
    237D  LEU      2.7    18.7    +      -       -      +
    238D  ILE*     3.4     7.8    -      -       +      -
    239D  ILE*     2.8    33.0    +      -       -      +
    270D  LEU*     3.9    37.2    -      -       +      -
    274D  PHE*     4.9     0.9    -      -       -      -
    311D  ILE*     4.1    10.3    -      -       -      -
    312D  CYS*     1.3    73.9    -      -       -      +
    314D  ILE*     1.3    60.5    -      -       -      +
    315D  LEU*     4.1     4.9    -      -       +      -
    356D  PHE*     3.4    30.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 314 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    239D  ILE*     3.6    26.7    -      -       +      +
    292D  ILE*     5.3     1.6    -      -       +      -
    296D  LEU*     5.6     0.9    -      -       +      -
    312D  CYS*     4.0    20.4    -      -       -      +
    313D  CYS*     1.3    77.0    -      -       -      +
    315D  LEU*     1.3    65.0    +      -       -      +
    316D  SER*     4.5     8.5    -      -       -      -
    323D  ILE*     4.0    34.8    -      -       +      -
    336D  LEU*     3.6    33.0    -      -       +      -
    355D  PHE*     5.1     2.2    -      -       +      -
    356D  PHE      2.9     8.4    +      -       -      +
    357D  ILE*     3.9    24.7    -      -       +      -
    358D  GLN      2.9    28.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 315 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238D  ILE*     4.0    23.3    -      -       +      -
    239D  ILE      2.8    15.0    +      -       -      +
    240D  ASN*     3.6    17.7    -      -       -      +
    241D  ASN*     2.9    24.8    +      -       -      +
    260D  ARG*     3.4    19.2    +      -       -      +
    263D  THR*     3.8     7.4    -      -       -      +
    266D  ASP*     4.1    17.7    -      -       +      +
    267D  ALA      4.1     8.1    -      -       -      +
    270D  LEU*     4.0    11.4    -      -       +      -
    313D  CYS*     4.6     1.8    -      -       +      -
    314D  ILE*     1.3    84.9    -      -       -      +
    316D  SER*     1.3    63.4    +      -       -      +
    358D  GLN*     3.6    10.3    -      -       +      -
    422D  ILE*     3.9    32.5    -      -       +      -
----------------------------------------------------------
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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
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
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