Contacts of the helix formed by residues 3012 - 3024 (chain C) in PDB entry 1D1Z


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 SER3012 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3011C  ILE*     1.3    77.5    -      -       -      +
   3013C  ARG*     1.3    64.6    +      -       -      +
   3014C  GLU*     3.4    10.2    +      -       -      +
   3015C  THR*     3.0    28.8    +      -       -      -
   3016C  GLY*     2.9    20.6    +      -       -      -
   3032C  ARG*     4.1     4.8    -      -       -      -
   3035C  GLU*     3.9    20.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG3013 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3012C  SER*     1.3    70.7    -      -       -      +
   3014C  GLU*     1.3    72.0    +      -       -      +
   3016C  GLY*     3.3     2.1    +      -       -      -
   3017C  GLU*     2.9    59.7    +      -       +      +
   3032C  ARG*     3.3    39.7    +      -       -      +
   3035C  GLU*     2.9    21.2    +      -       -      +
   5003C  SO4      4.1    16.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU3014 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3012C  SER*     3.1    10.2    +      -       -      +
   3013C  ARG*     1.3    93.9    +      -       -      +
   3015C  THR*     1.3    57.2    +      -       -      +
   3017C  GLU*     3.3     5.6    +      -       -      +
   3018C  LYS*     2.9    54.8    +      -       -      +
   3035C  GLU*     4.7     0.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR3015 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3011C  ILE*     4.0    24.7    -      -       +      -
   3012C  SER*     3.0    26.5    +      -       -      -
   3014C  GLU*     1.3    75.7    -      -       -      +
   3016C  GLY*     1.4    64.5    +      -       -      +
   3018C  LYS*     3.3     9.7    +      -       -      +
   3019C  LEU*     3.0    28.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY3016 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3011C  ILE*     3.9    17.2    -      -       -      +
   3012C  SER      2.9    14.2    +      -       -      -
   3013C  ARG      3.7     2.7    -      -       -      -
   3015C  THR*     1.4    78.3    -      -       -      +
   3017C  GLU*     1.3    62.2    +      -       -      +
   3019C  LEU*     3.4     3.7    +      -       -      +
   3020C  LEU*     3.0    28.9    +      -       -      +
   3030C  LEU*     3.8    16.6    -      -       -      +
   3032C  ARG*     4.6     4.3    -      -       -      -
   3044C  CYS*     6.2     0.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU3017 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3013C  ARG*     2.9    49.4    +      -       +      +
   3014C  GLU*     4.0     4.6    -      -       -      +
   3016C  GLY*     1.3    76.3    -      -       -      +
   3018C  LYS*     1.3    57.6    +      -       +      +
   3020C  LEU*     3.2     2.4    +      -       +      +
   3021C  LEU*     2.9    43.8    +      -       +      +
   3032C  ARG*     4.8     3.7    +      -       -      +
   3044C  CYS*     5.9     2.4    -      -       -      -
   3051C  ILE*     4.1    42.4    -      -       +      +
   3053C  THR*     4.3     8.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS3018 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3014C  GLU*     2.9    41.5    +      -       -      +
   3015C  THR*     3.3     8.9    +      -       -      +
   3017C  GLU*     1.3    75.5    -      -       -      +
   3019C  LEU*     1.3    64.0    +      -       -      +
   3021C  LEU*     3.9     9.8    -      -       +      +
   3022C  ALA*     3.0    24.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU3019 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3008C  HIS*     5.4     6.7    -      -       +      +
   3011C  ILE*     5.4     5.8    -      -       +      -
   3015C  THR*     3.0    20.6    +      -       +      +
   3016C  GLY*     3.6     5.4    -      -       -      +
   3018C  LYS*     1.3    75.2    -      -       -      +
   3020C  LEU*     1.3    65.9    +      -       -      +
   3022C  ALA*     3.2    13.3    +      -       -      +
   3023C  THR*     3.4    11.2    +      -       +      +
   3030C  LEU*     4.1    12.1    -      -       +      -
   3102C  VAL*     3.6    32.5    -      -       +      -
   3104C  LYS      4.9     9.6    -      -       -      +
   4010D  LYS*     3.8    39.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU3020 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3016C  GLY      3.0    22.1    +      -       -      +
   3017C  GLU*     3.2     0.6    +      -       -      +
   3019C  LEU*     1.3    74.9    -      -       -      +
   3021C  LEU*     1.3    64.6    +      -       -      +
   3023C  THR*     2.7    27.7    +      -       -      -
   3028C  SER*     3.7    33.2    -      -       -      +
   3029C  TYR*     3.7    11.0    -      -       -      +
   3030C  LEU*     3.8     9.4    -      -       +      -
   3044C  CYS*     3.5    40.6    -      -       +      +
   3045C  VAL      4.2     0.9    -      -       -      +
   3046C  LEU*     3.4    12.5    -      -       +      +
   3051C  ILE*     3.6    27.8    -      -       +      -
   3102C  VAL*     3.8    16.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU3021 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3017C  GLU*     2.9    30.6    +      -       +      +
   3018C  LYS*     3.9     8.7    -      -       +      +
   3020C  LEU*     1.3    77.5    -      -       -      +
   3022C  ALA*     1.3    63.6    +      -       -      +
   3024C  GLY*     3.1    13.9    +      -       -      -
   3046C  LEU*     3.8    17.9    -      -       +      +
   3049C  GLY*     3.5    26.7    -      -       -      +
   3051C  ILE*     4.0    15.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA3022 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3018C  LYS      3.0    18.9    +      -       -      +
   3019C  LEU*     3.5     7.4    -      -       -      +
   3020C  LEU      3.1     0.6    -      -       -      -
   3021C  LEU*     1.3    77.2    -      -       -      +
   3023C  THR*     1.3    63.8    -      -       -      +
   3024C  GLY*     3.3     0.9    +      -       -      -
   4007D  TYR*     4.9     1.7    -      -       -      +
   4008D  HIS*     4.2     1.6    -      -       -      -
   4009D  GLY*     3.4    20.2    +      -       -      +
   4010D  LYS*     3.7    22.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR3023 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3019C  LEU*     3.6    14.6    -      -       +      +
   3020C  LEU*     2.7    19.2    +      -       -      +
   3022C  ALA*     1.3    81.3    -      -       -      +
   3024C  GLY*     1.3    59.5    +      -       -      +
   3025C  LEU*     3.1     6.9    +      -       -      +
   3028C  SER*     2.9    28.3    +      -       -      +
   3046C  LEU*     3.8     0.2    -      -       -      +
   3102C  VAL*     4.3    18.2    -      -       +      -
   4008D  HIS*     2.8    30.9    -      -       -      +
   4009D  GLY      3.2    15.7    -      -       -      +
   4010D  LYS*     4.1    11.4    -      -       +      +
   4011D  ILE*     3.8    17.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY3024 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3020C  LEU      3.5     1.6    +      -       -      -
   3021C  LEU      3.1    15.2    +      -       -      -
   3022C  ALA      4.3     0.7    -      -       -      -
   3023C  THR*     1.3    80.3    +      -       -      +
   3025C  LEU*     1.3    56.9    +      -       -      +
   3046C  LEU*     3.8     9.2    -      -       -      -
   4007D  TYR      5.7     0.4    -      -       -      -
   4008D  HIS*     3.3    20.7    +      -       -      -
   4103D  GLU      3.4     3.9    -      -       -      +
   4104D  LYS*     3.3    15.3    -      -       -      +
----------------------------------------------------------
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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