Contacts of the helix formed by residues 282 - 290 (chain A) in PDB entry 1R60


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 SER 282 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    193A  VAL*     3.5    16.8    -      -       -      +
    194A  GLY      3.4    18.6    -      -       -      -
    195A  GLY*     3.3     6.2    -      -       -      -
    259A  ALA*     4.0     2.7    -      -       -      +
    260A  LEU      2.8    21.2    +      -       -      -
    261A  SER*     3.2     8.8    -      -       -      -
    279A  THR*     2.9    26.0    +      -       -      -
    280A  SER      3.4     0.2    -      -       -      -
    281A  ALA*     1.3    78.0    -      -       -      +
    283A  THR*     1.3    68.6    +      -       -      +
    284A  PRO*     3.3     1.1    -      -       -      +
    285A  VAL*     2.9    15.8    +      -       -      +
    286A  PHE      3.2     9.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 283 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127A  THR*     3.7    17.3    -      -       +      +
    128A  VAL      3.7     7.9    -      -       -      +
    129A  SER*     4.7     3.4    -      -       -      -
    160A  LEU*     3.1    37.3    -      -       +      +
    161A  PHE      2.8    27.4    +      -       -      +
    162A  ALA*     3.3    14.7    -      -       -      +
    193A  VAL*     3.4    12.9    +      -       +      +
    279A  THR      3.5     2.0    +      -       -      -
    282A  SER*     1.3    77.6    -      -       -      +
    284A  PRO*     1.4    62.4    -      -       -      +
    286A  PHE*     3.3     2.9    +      -       -      +
    287A  GLY*     2.9    24.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 284 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80A  LEU*     4.3     0.4    -      -       +      -
     81A  ASP*     3.5    32.1    -      -       -      +
     84A  TYR*     3.3    33.6    -      -       +      +
     85A  LEU*     3.5    16.3    -      -       +      +
    127A  THR*     3.8     5.4    -      -       +      -
    129A  SER*     3.7     8.3    -      -       -      +
    280A  SER      3.2    28.0    -      -       -      +
    281A  ALA*     4.1     0.4    -      -       -      -
    282A  SER      3.4     4.0    -      -       -      +
    283A  THR*     1.4    91.4    -      -       -      +
    285A  VAL*     1.3    59.9    +      -       -      +
    288A  GLY      2.9    20.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 285 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10A  ILE*     5.1     2.7    -      -       +      -
     14A  TYR*     4.7     4.3    -      -       +      +
     84A  TYR*     3.4    24.0    -      -       +      -
    259A  ALA*     4.6     6.1    -      -       +      -
    260A  LEU*     3.9    25.8    -      -       +      +
    264A  TYR*     3.4    22.9    -      -       +      +
    281A  ALA      3.1    26.2    -      -       -      +
    282A  SER      2.9     7.5    +      -       -      +
    284A  PRO*     1.3    75.4    -      -       -      +
    286A  PHE*     1.3    71.4    +      -       -      +
    288A  GLY*     3.1     0.7    +      -       -      -
    289A  ILE*     3.1    40.3    +      -       +      +
    358A  PHE*     5.5     0.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 286 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124A  HIS*     4.7     1.8    -      -       -      -
    160A  LEU*     3.7    34.3    -      -       +      -
    191A  THR*     5.6     0.9    -      -       +      -
    193A  VAL*     3.8    22.7    -      -       +      -
    257A  VAL*     3.9    28.3    -      -       +      -
    259A  ALA*     4.7     5.3    -      -       +      +
    282A  SER      3.2     2.4    +      -       -      -
    283A  THR      3.5     6.7    -      -       -      +
    285A  VAL*     1.3    79.6    -      -       -      +
    287A  GLY*     1.3    64.5    +      -       -      +
    289A  ILE      3.0    11.6    +      -       -      -
    290A  LEU*     3.2    35.1    +      -       +      +
    308A  LEU*     3.9    28.0    -      -       +      -
    312A  LEU*     5.3     0.7    -      -       +      -
    355A  THR*     5.9     0.2    -      -       -      -
    356A  PRO*     4.0    22.7    -      -       +      -
    358A  PHE*     3.3    30.9    -      +       -      -
    361A  LEU*     4.7     4.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 287 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30A  GLN*     2.8    24.7    +      -       -      -
     85A  LEU*     3.6    10.3    -      -       -      -
     87A  SER*     4.8     1.6    -      -       -      -
    127A  THR*     4.2     9.4    -      -       -      -
    160A  LEU*     4.5     2.0    -      -       -      +
    283A  THR      2.9    16.2    +      -       -      -
    286A  PHE*     1.3    77.9    -      -       -      +
    288A  GLY*     1.3    60.3    +      -       -      +
    289A  ILE      3.4     0.3    +      -       -      -
    290A  LEU*     3.5    27.7    +      -       -      +
    291A  SER      5.1     0.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 288 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84A  TYR      3.4    24.2    -      -       -      -
     85A  LEU*     3.6     8.7    -      -       -      +
     86A  MET      4.4     0.2    -      -       -      -
     87A  SER*     3.1     9.0    -      -       -      -
     88A  ALA      2.9    28.2    +      -       -      -
    284A  PRO      2.9    12.4    +      -       -      -
    285A  VAL      3.1     1.5    +      -       -      -
    287A  GLY*     1.3    77.8    -      -       -      +
    289A  ILE*     1.3    66.1    +      -       -      +
    290A  LEU      3.4     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 289 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10A  ILE*     3.8    32.3    -      -       +      +
     11A  ARG*     4.5    12.8    -      -       +      +
     14A  TYR*     3.5    34.3    -      -       +      -
     88A  ALA*     4.8     1.3    -      -       +      +
    285A  VAL*     3.1    16.8    +      -       +      +
    286A  PHE      3.0     3.8    +      -       -      -
    288A  GLY*     1.3    80.8    -      -       -      +
    290A  LEU*     1.3    66.1    +      -       -      +
    291A  SER      3.0     5.1    +      -       -      -
    292A  LEU*     3.2    36.0    +      -       +      +
    358A  PHE*     3.5    39.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 290 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124A  HIS*     3.2    45.1    -      -       +      +
    125A  VAL*     4.1    10.5    -      -       +      -
    160A  LEU*     3.8    10.5    -      -       +      -
    286A  PHE*     3.2    36.8    -      -       +      +
    287A  GLY*     3.5    22.6    +      -       -      +
    288A  GLY      3.4     2.6    -      -       -      -
    289A  ILE*     1.3    77.9    -      -       -      +
    291A  SER*     1.3    56.2    +      -       -      +
    292A  LEU      3.0     4.2    +      -       -      -
    293A  ILE*     3.0    15.5    +      -       +      +
    294A  ASN*     2.8    39.4    +      -       +      +
    358A  PHE*     3.8    12.3    -      -       +      -
----------------------------------------------------------
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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