Contacts of the helix formed by residues 2 - 18 (chain A) in PDB entry 1RVC


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 2 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3A  LEU*     1.3    64.6    +      -       -      +
      4A  ARG*     3.6     8.9    +      -       -      +
      5A  SER*     3.0    45.2    +      -       -      -
      6A  ASP*     3.2    19.5    +      -       -      -
     59A  HIS*     3.5    11.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 3 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2A  SER*     1.3    73.3    -      -       -      +
      4A  ARG*     1.3    57.8    -      -       -      +
      6A  ASP*     3.6     1.7    -      -       -      +
      7A  LEU*     2.9    36.0    +      -       +      +
     55A  ILE*     3.9    32.1    -      -       +      +
     56A  ALA*     4.1    11.4    -      -       -      -
     59A  HIS*     3.4    29.7    +      -       +      +
     61A  TYR*     3.8    24.5    -      -       +      +
     77A  LEU*     4.1    20.0    -      -       +      -
     87A  ILE*     3.8    25.1    -      -       +      -
    132A  TRP*     4.1    13.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 4 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2A  SER*     3.2     9.1    -      -       -      +
      3A  LEU*     1.3    81.3    -      -       -      +
      5A  SER*     1.3    61.8    +      -       -      +
      7A  LEU*     3.4     3.2    +      -       -      +
      8A  ILE*     3.1    44.8    +      -       +      +
    132A  TRP*     3.5    46.6    -      -       +      +
    170A  LEU*     4.0    21.7    +      -       +      +
    171A  GLN*     3.1    39.0    +      -       -      +
    172A  ASP*     2.9    23.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 5 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2A  SER*     3.0    35.6    +      -       -      -
      4A  ARG*     1.3    76.5    -      -       -      +
      6A  ASP*     1.3    62.8    +      -       -      +
      8A  ILE*     3.6     9.7    +      -       -      +
      9A  ASN*     3.1    36.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 6 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2A  SER      3.2    14.7    +      -       -      +
      3A  LEU      3.6     3.4    -      -       -      +
      5A  SER*     1.3    83.8    +      -       -      +
      7A  LEU*     1.3    60.3    +      -       -      +
      9A  ASN*     3.3     8.0    +      -       -      +
     10A  ALA*     2.9    30.7    +      -       -      +
     55A  ILE*     3.8    20.5    -      -       +      +
     58A  LYS*     3.6    21.8    +      -       -      -
     59A  HIS*     2.8    26.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 7 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3A  LEU*     2.9    21.9    +      -       +      +
      4A  ARG      3.7     4.7    -      -       -      +
      6A  ASP*     1.3    77.1    -      -       -      +
      8A  ILE*     1.3    61.8    +      -       -      +
     10A  ALA*     3.3     2.1    +      -       -      +
     11A  LEU*     2.9    38.8    +      -       +      +
     51A  ILE*     4.5     1.6    -      -       +      +
     52A  ILE*     3.9    34.8    -      -       +      +
     55A  ILE*     3.8    22.6    -      -       +      +
     77A  LEU*     5.7     2.0    -      -       +      -
     89A  ILE*     3.8    27.8    -      -       +      -
    132A  TRP*     4.2     9.2    -      -       +      -
    134A  ILE*     4.5     5.8    -      -       +      -
    170A  LEU*     3.5    25.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 8 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  ARG*     3.1    38.2    +      -       +      +
      5A  SER*     3.8     8.3    -      -       -      +
      7A  LEU*     1.3    76.5    -      -       -      +
      9A  ASN*     1.3    62.7    -      -       -      +
     11A  LEU*     3.4     7.9    +      -       -      +
     12A  TYR*     2.9    34.5    +      -       +      +
    169A  PHE*     6.1     1.8    -      -       -      -
    170A  LEU*     3.8    36.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 9 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5A  SER*     3.1    20.9    +      -       -      +
      6A  ASP*     3.3     9.2    +      -       -      +
      8A  ILE*     1.3    85.7    -      -       -      +
     10A  ALA*     1.3    58.0    +      -       -      +
     12A  TYR*     3.7     6.1    -      -       -      +
     13A  ASP*     2.9    31.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 10 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6A  ASP      2.9    17.2    +      -       -      +
      7A  LEU      3.7     2.5    -      -       -      +
      9A  ASN*     1.3    74.5    -      -       -      +
     11A  LEU*     1.3    58.8    +      -       -      +
     13A  ASP*     3.7     4.7    -      -       -      +
     14A  GLU*     2.9    33.3    +      -       -      +
     51A  ILE*     3.6    22.6    -      -       +      +
     54A  LYS*     6.4     1.3    -      -       +      -
     55A  ILE*     3.9    19.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 11 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7A  LEU*     2.9    33.5    +      -       +      +
      8A  ILE*     3.8     5.6    -      -       -      +
     10A  ALA*     1.3    76.1    -      -       -      +
     12A  TYR*     1.3    57.7    +      -       -      +
     14A  GLU*     3.8     1.4    -      -       -      +
     15A  ASN*     2.9    32.6    +      -       -      +
     47A  PHE*     5.1     2.0    -      -       +      -
     48A  SER*     4.3    12.6    -      -       -      +
     51A  ILE*     4.0    31.2    -      -       +      -
     52A  ILE*     5.1     0.9    -      -       +      -
    134A  ILE*     3.5    40.8    -      -       +      -
    136A  TYR*     3.8    20.6    +      -       -      +
    168A  VAL*     4.3    15.4    -      -       +      +
    169A  PHE      5.9     0.2    -      -       -      -
    170A  LEU*     4.5     8.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 12 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8A  ILE*     2.9    24.5    +      -       +      +
      9A  ASN*     3.7     6.7    -      -       -      +
     11A  LEU*     1.3    77.5    -      -       -      +
     13A  ASP*     1.3    64.3    +      -       +      +
     15A  ASN*     3.7     3.0    +      -       -      +
     16A  GLN*     3.1    59.9    +      -       +      +
    168A  VAL*     4.2    24.3    -      -       +      +
    196A  TYR*     5.1     7.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 13 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9A  ASN      2.9    20.0    +      -       -      +
     10A  ALA*     3.7     5.6    -      -       -      +
     11A  LEU      3.2     0.2    -      -       -      -
     12A  TYR*     1.3    78.7    -      -       +      +
     14A  GLU*     1.3    69.1    +      -       -      +
     16A  GLN*     3.2    15.7    +      -       -      +
     17A  LYS*     3.2    53.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 14 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10A  ALA      2.9    21.1    +      -       -      +
     11A  LEU      3.8     1.3    -      -       -      +
     13A  ASP*     1.3    76.3    +      -       -      +
     15A  ASN*     1.3    58.2    +      -       -      +
     17A  LYS*     3.4     1.0    +      -       -      -
     18A  TYR*     3.0    48.5    +      -       +      +
     47A  PHE*     3.4    22.4    -      -       +      -
     51A  ILE*     3.4    30.7    -      -       +      +
     29B  LYS*     2.8    29.8    +      -       -      -
     31B  TYR*     2.9    19.4    +      -       -      -
    150B  THR*     5.5     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 15 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11A  LEU      2.9    18.9    +      -       -      +
     12A  TYR*     3.9     5.9    +      -       -      +
     14A  GLU*     1.3    77.6    -      -       -      +
     16A  GLN*     1.3    64.4    +      -       -      +
     18A  TYR      3.5    13.7    -      -       -      +
     19A  ASP*     4.3     4.9    -      -       -      +
     44A  PHE*     5.5     1.0    -      -       -      -
     47A  PHE*     4.1    15.5    -      -       +      -
    136A  TYR*     4.3     8.6    -      -       +      -
    166A  VAL*     3.0    50.5    +      -       -      +
    167A  LYS*     4.5     1.0    -      -       -      +
    168A  VAL*     4.3    20.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 16 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12A  TYR*     3.1    55.6    +      -       +      +
     13A  ASP*     3.2    10.1    +      -       -      +
     15A  ASN*     1.3    83.8    -      -       -      +
     17A  LYS*     1.3    64.5    +      -       +      +
     18A  TYR      3.5     0.7    +      -       -      +
     19A  ASP*     5.1     3.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 17 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13A  ASP*     3.2    44.8    +      -       -      +
     16A  GLN*     1.3    82.5    -      -       +      +
     18A  TYR*     1.3    80.0    +      -       +      +
     27B  GLU*     3.5    19.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 18 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14A  GLU*     3.0    47.6    +      -       -      +
     15A  ASN*     3.5    12.8    -      -       -      +
     16A  GLN      3.5     0.6    -      -       -      -
     17A  LYS*     1.3    97.8    -      -       +      +
     19A  ASP*     1.3    70.9    +      -       -      +
     20A  VAL      4.2     0.8    +      -       -      -
     47A  PHE*     4.1    13.0    -      -       +      -
     25B  SER*     3.7    11.2    -      -       -      -
     27B  GLU*     3.5    33.0    -      -       +      +
     29B  LYS*     3.8    28.6    +      -       +      +
     31B  TYR*     3.7    15.9    -      -       -      +
----------------------------------------------------------
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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