Contacts of the strand formed by residues 363 - 367 (chain B) in PDB entry 3ISL


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 ILE 363 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    150B  SER      4.2     1.6    -      -       -      +
    316B  PHE*     3.4    39.5    -      -       +      -
    328B  CYS*     4.0    15.0    -      -       +      -
    329B  VAL      3.1    13.5    -      -       -      +
    330B  GLU*     4.3     3.4    -      -       +      -
    331B  ILE*     3.5    13.9    -      -       -      +
    354B  SER*     4.2     2.4    -      -       -      -
    355B  SER*     3.5    37.9    +      -       -      +
    359B  LEU*     4.0    27.6    -      -       +      +
    361B  GLY      5.2     0.9    +      -       -      -
    362B  LYS*     1.3    90.6    +      -       +      +
    364B  TRP*     1.3    63.5    +      -       -      +
    365B  ARG*     3.8    21.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with TRP 364 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    313B  LEU*     5.1     1.3    -      -       +      -
    327B  THR      3.7     0.2    -      -       -      +
    328B  CYS*     3.5     3.6    -      -       -      -
    329B  VAL*     2.8    62.8    +      -       +      -
    330B  GLU      3.7    18.2    -      -       -      -
    331B  ILE*     3.6    13.0    -      -       +      +
    332B  PRO*     3.8    11.7    -      -       +      -
    335B  ILE*     3.4    33.9    -      -       +      -
    337B  GLY*     2.9    27.4    +      -       -      -
    340B  VAL*     3.8    23.6    -      -       +      +
    341B  ARG*     4.6     4.7    -      -       +      -
    352B  ILE*     3.9    27.8    -      -       +      -
    353B  ALA      3.2    13.9    -      -       -      +
    354B  SER*     4.9     4.7    -      -       -      -
    363B  ILE*     1.3    78.1    -      -       -      +
    365B  ARG*     1.3    64.0    +      -       -      +
    366B  ILE*     4.1     3.1    -      -       +      -
    385B  LEU*     4.8     8.7    -      -       +      -
    389B  LEU*     3.9    22.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 365 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17B  MET      3.8     2.9    -      -       -      +
     19B  PRO*     3.8    23.4    -      -       +      +
     99B  PHE*     5.9     0.8    -      -       -      -
    149B  THR*     3.0    45.8    +      -       -      -
    150B  SER*     3.8    20.6    +      -       -      +
    326B  VAL*     4.3     3.8    -      -       +      -
    327B  THR      3.4     3.8    -      -       -      +
    328B  CYS*     4.0    10.1    -      -       -      -
    352B  ILE*     3.9     0.9    -      -       -      +
    353B  ALA*     2.7    49.1    +      -       +      +
    354B  SER      3.1    25.6    +      -       -      -
    355B  SER*     3.5    12.9    +      -       -      +
    356B  PHE*     5.7     0.6    -      -       -      +
    363B  ILE*     3.8    14.1    -      -       +      -
    364B  TRP*     1.3    76.2    -      -       -      +
    366B  ILE*     1.3    64.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 366 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17B  MET*     3.4    22.9    -      -       +      +
     19B  PRO*     4.9     0.2    -      -       -      -
    304B  LEU*     3.9    25.0    -      -       +      +
    308B  ILE*     4.4     9.2    -      -       +      -
    326B  VAL*     3.6     1.0    -      -       -      -
    327B  THR*     2.8    44.7    +      -       -      +
    329B  VAL*     4.1    21.5    -      -       +      -
    352B  ILE*     3.9    22.7    -      -       +      -
    364B  TRP*     5.0     2.5    -      -       +      -
    365B  ARG*     1.3    75.5    -      -       -      +
    367B  GLY*     1.3    68.4    +      -       -      +
    368B  THR*     3.9     0.5    +      -       -      +
    381B  VAL*     4.3    20.2    -      -       +      -
    385B  LEU*     4.2    22.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 367 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17B  MET*     2.8    35.3    +      -       -      +
     18B  THR      3.4    24.0    -      -       -      -
     19B  PRO*     4.0     6.9    -      -       -      -
     22B  VAL*     5.9     0.2    -      -       -      -
    325B  VAL      3.4     9.4    -      -       -      -
    326B  VAL*     4.4     2.2    -      -       -      -
    365B  ARG      3.9     0.6    +      -       -      -
    366B  ILE*     1.3    73.6    -      -       -      +
    368B  THR*     1.3    66.0    +      -       -      +
    369B  MET*     3.8     3.6    -      -       -      -
    372B  SER*     5.4     0.3    -      -       -      -
----------------------------------------------------------
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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