Contacts of the strand formed by residues 284 - 289 (chain B) in PDB entry 3SN6


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 LEU 284 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40B  VAL*     4.2    13.0    -      -       +      -
     45B  MET*     4.5     5.8    -      -       +      -
    278B  PHE*     3.2    18.3    -      -       -      -
    279B  SER*     3.1    31.3    +      -       -      +
    283B  ARG*     1.3    82.6    -      -       -      +
    285B  LEU*     1.3    60.2    +      -       -      +
    286B  LEU*     4.1    10.1    -      -       +      -
    296B  VAL*     4.0    13.7    -      -       +      -
    297B  TRP      3.3    14.6    -      -       -      +
    305B  ALA*     3.9    21.1    -      -       +      -
     50G  LEU*     3.7    33.4    -      -       +      +
     51G  LEU*     3.8    24.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 285 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    242B  ALA*     3.6    25.8    -      -       +      -
    250B  CYS*     4.3    12.8    -      -       +      -
    264B  TYR*     3.4    37.0    -      -       +      -
    276B  VAL*     4.6     3.4    -      -       +      -
    277B  SER*     3.3    26.7    -      -       -      +
    278B  PHE*     3.4    31.0    -      -       +      -
    283B  ARG      4.1     0.6    +      -       -      -
    284B  LEU*     1.3    72.8    -      -       -      +
    286B  LEU*     1.3    63.9    +      -       -      +
    297B  TRP*     2.9    53.3    +      -       +      -
    299B  ALA*     4.4     7.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 286 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45B  MET*     4.8     7.0    -      -       +      -
    276B  VAL*     3.0     7.4    -      -       -      +
    277B  SER      2.7    42.6    +      -       -      +
    278B  PHE      5.1     1.8    -      -       -      +
    284B  LEU*     4.2    14.8    -      -       +      +
    285B  LEU*     1.3    75.6    -      -       -      +
    287B  ALA*     1.3    61.5    +      -       -      +
    294B  CYS*     5.0     2.5    -      -       -      -
    295B  ASN      3.5     3.4    -      -       -      +
    296B  VAL*     3.4    43.1    -      -       +      -
    308B  LEU*     6.0     2.2    -      -       +      -
    318B  LEU*     3.8    17.0    -      -       +      -
    320B  VAL*     3.8    16.2    -      -       +      -
    327B  VAL*     3.7    37.9    -      -       +      -
     50G  LEU*     4.9     4.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 287 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    250B  CYS*     3.5    32.1    -      -       -      -
    273B  ILE*     3.6    12.1    -      -       +      -
    275B  SER      3.1     5.4    -      -       -      +
    276B  VAL*     3.6     0.7    -      -       +      -
    285B  LEU*     5.5     0.4    -      -       +      -
    286B  LEU*     1.3    75.4    -      -       -      +
    288B  GLY*     1.3    59.5    +      -       -      +
    289B  TYR*     3.2    16.5    -      -       +      +
    294B  CYS*     3.5     1.6    -      -       -      -
    295B  ASN      2.9    37.7    +      -       -      +
    297B  TRP*     4.4     4.3    -      -       +      +
    318B  LEU*     3.8     5.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 288 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    273B  ILE*     3.2    10.0    -      -       -      +
    274B  THR*     2.9    26.8    +      -       -      -
    275B  SER*     2.8    14.9    +      -       -      -
    287B  ALA*     1.3    72.6    -      -       -      +
    289B  TYR*     1.3    60.3    +      -       -      -
    293B  ASN      4.1     1.1    -      -       -      -
    294B  CYS*     4.1     9.4    -      -       -      -
    315B  VAL*     3.4    21.1    -      -       -      -
    318B  LEU*     3.6     6.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 289 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    248B  ALA      4.5     3.4    +      -       -      -
    250B  CYS*     4.5     2.6    -      -       -      -
    264B  TYR      4.7     2.3    +      -       -      -
    265B  SER*     5.6     0.2    -      -       -      -
    269B  ILE*     3.5    33.7    -      -       +      -
    271B  CYS*     3.6    12.6    -      -       -      -
    272B  GLY      3.6     4.7    -      -       -      -
    273B  ILE*     3.4    30.6    -      -       +      +
    274B  THR*     4.6     3.4    -      -       -      -
    287B  ALA*     3.2    29.9    -      -       +      +
    288B  GLY*     1.3    74.5    -      -       -      -
    290B  ASP*     1.3    64.8    +      -       -      +
    291B  ASP*     2.9    25.7    +      -       -      +
    292B  PHE      3.2     9.5    +      -       -      -
    293B  ASN      3.4     4.9    +      -       -      -
    295B  ASN*     3.3    33.2    -      -       +      -
    297B  TRP*     2.9    33.1    +      -       -      -
    315B  VAL*     3.3    19.8    +      -       -      +
----------------------------------------------------------
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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