Contacts of the helix formed by residues 320 - 338 (chain C) in PDB entry 1RR8


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 320 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    318C  GLN      4.0     0.4    +      -       -      -
    319C  MET*     1.3    77.7    -      -       -      +
    321C  LYS*     1.3    60.4    +      -       -      +
    322C  GLU*     3.2    24.7    +      -       -      +
    323C  GLU*     3.3    21.1    +      -       -      +
    324C  LYS*     3.1    28.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 321 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    320C  SER*     1.3    74.6    -      -       -      +
    322C  GLU*     1.3    68.5    +      -       -      +
    323C  GLU      3.3     2.9    -      -       -      -
    324C  LYS*     4.3     6.3    -      -       -      +
    325C  LEU*     3.3    32.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 322 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    320C  SER*     3.2    19.2    +      -       -      +
    321C  LYS*     1.3    93.9    +      -       -      +
    323C  GLU*     1.3    69.2    +      -       +      +
    326C  LYS*     3.2    25.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 323 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    319C  MET*     3.6    34.4    -      -       +      +
    320C  SER*     3.3    22.8    +      -       -      +
    322C  GLU*     1.3    90.2    -      -       +      +
    324C  LYS*     1.3    62.8    +      -       -      +
    325C  LEU      3.3     1.3    -      -       -      -
    326C  LYS*     3.9     6.2    -      -       -      +
    327C  ILE*     3.3    37.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 324 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17A    A      3.7    39.4    +      -       -      +
     18A    T      4.5    15.6    +      -       -      +
    316C  ARG      5.0     5.6    +      -       -      -
    317C  LYS*     4.6    18.5    -      -       -      +
    319C  MET*     4.5    28.4    -      -       +      +
    320C  SER      3.1    16.2    +      -       -      +
    321C  LYS*     4.9     3.1    -      -       -      -
    323C  GLU*     1.3    77.0    -      -       -      +
    325C  LEU*     1.3    58.9    +      -       -      +
    327C  ILE*     5.1     1.2    -      -       -      +
    328C  LYS*     3.6    28.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 325 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    321C  LYS*     3.3    21.9    +      -       +      +
    323C  GLU      3.3     0.2    -      -       -      -
    324C  LYS*     1.3    78.0    -      -       -      +
    326C  LYS*     1.3    66.1    +      -       -      +
    328C  LYS*     3.5     6.1    +      -       +      +
    329C  GLU*     3.2    52.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 326 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    322C  GLU      3.2    25.3    +      -       -      +
    323C  GLU*     3.5     9.0    +      -       -      +
    324C  LYS      3.5     0.4    -      -       -      -
    325C  LEU*     1.3    77.9    -      -       -      +
    327C  ILE*     1.3    63.2    +      -       +      +
    329C  GLU*     3.0     9.5    +      -       -      +
    330C  GLU*     3.0    62.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 327 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    319C  MET*     4.4    24.2    -      -       +      -
    323C  GLU*     3.3    22.6    +      -       +      +
    324C  LYS*     5.1     1.1    -      -       -      +
    326C  LYS*     1.3    83.4    -      -       +      +
    328C  LYS*     1.3    63.3    +      -       +      +
    330C  GLU*     3.5     9.8    +      -       +      +
    331C  ASN*     3.2    38.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 328 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17A    A      3.5    35.3    +      -       -      -
    109B    T      6.0     0.2    -      -       -      -
    110B    T      5.1    14.1    +      -       -      -
    324C  LYS*     3.6    20.9    +      -       -      +
    325C  LEU*     3.5     8.7    +      -       +      +
    326C  LYS      3.2     0.4    -      -       -      -
    327C  ILE*     1.3    84.4    -      -       +      +
    329C  GLU*     1.3    59.3    +      -       +      +
    331C  ASN*     3.9    13.2    -      -       +      +
    332C  GLU*     3.3    29.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 329 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    325C  LEU*     3.2    45.3    +      -       +      +
    326C  LYS*     3.0     9.7    +      -       -      +
    328C  LYS*     1.3    78.4    -      -       +      +
    330C  GLU*     1.3    69.0    +      -       -      +
    331C  ASN      3.2     1.3    -      -       -      -
    332C  GLU*     3.6    19.5    +      -       -      +
    333C  LYS*     3.3    20.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 330 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    326C  LYS*     3.0    59.8    +      -       +      +
    327C  ILE*     3.5     9.6    +      -       +      +
    329C  GLU*     1.3    84.2    -      -       -      +
    331C  ASN*     1.3    64.7    +      -       -      +
    332C  GLU      3.3     0.2    -      -       -      -
    333C  LYS*     3.4    29.6    +      -       +      +
    334C  LEU*     3.3    22.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 331 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110B    T      4.8     9.2    +      -       -      -
    327C  ILE*     3.2    30.3    +      -       -      +
    328C  LYS*     3.9    16.2    -      -       +      +
    330C  GLU*     1.3    82.0    +      -       -      +
    332C  GLU*     1.3    57.2    +      -       +      +
    334C  LEU*     3.6    13.6    +      -       -      +
    335C  LEU*     3.1    26.5    +      -       -      +
    353C  PHE*     5.7     0.2    -      -       -      -
    354C  LYS*     3.8    27.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 332 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    328C  LYS      3.3    18.7    +      -       -      +
    329C  GLU*     3.6    24.1    +      -       -      +
    330C  GLU      3.3     0.2    -      -       -      -
    331C  ASN*     1.3    76.1    -      -       +      +
    333C  LYS*     1.3    62.7    +      -       -      +
    334C  LEU      3.2     1.6    -      -       -      -
    335C  LEU*     3.3     7.7    +      -       +      +
    336C  LYS*     3.2    50.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 333 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    329C  GLU      3.3    10.0    +      -       -      +
    330C  GLU*     3.4    32.9    +      -       -      +
    332C  GLU*     1.3    77.0    -      -       -      +
    334C  LEU*     1.3    67.5    +      -       -      +
    335C  LEU      3.4     0.2    -      -       -      -
    336C  LYS*     4.0     7.3    -      -       -      +
    337C  GLU*     3.2    48.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 334 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    226C  VAL*     4.2    27.4    -      -       +      -
    330C  GLU      3.3    15.5    +      -       -      +
    331C  ASN*     3.6    17.5    -      -       -      +
    332C  GLU      3.2     0.2    -      -       -      -
    333C  LYS*     1.3    84.0    -      -       -      +
    335C  LEU*     1.3    57.5    +      -       -      +
    336C  LYS      3.3     0.4    -      -       -      -
    337C  GLU*     4.6     2.9    -      -       -      +
    338C  TYR*     3.1    55.9    +      -       +      +
    353C  PHE*     3.7     8.1    -      -       +      -
    354C  LYS*     3.9    25.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 335 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    331C  ASN      3.1    17.6    +      -       -      +
    332C  GLU*     3.3     9.6    +      -       +      +
    334C  LEU*     1.3    78.0    -      -       -      +
    336C  LYS*     1.3    70.8    +      -       +      +
    339C  GLY*     3.2    24.6    -      -       -      +
    340C  PHE*     3.6    18.9    -      -       +      -
    349C  ARG*     4.8    21.1    -      -       +      +
    353C  PHE*     3.8    30.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 336 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    332C  GLU*     3.2    39.0    +      -       -      +
    333C  LYS*     3.8     6.5    +      -       -      +
    334C  LEU      3.3     0.2    -      -       -      -
    335C  LEU*     1.3    94.4    -      -       +      +
    337C  GLU*     1.3    59.2    +      -       -      +
    338C  TYR      3.7     0.2    -      -       -      -
    340C  PHE*     4.0    24.9    -      -       +      +
    347C  LYS*     5.9     1.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 337 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    223C  LYS*     3.6    26.2    -      -       +      +
    333C  LYS*     3.2    40.1    +      -       -      +
    334C  LEU*     3.5     0.9    +      -       -      +
    336C  LYS*     1.3    79.2    -      -       -      +
    338C  TYR*     1.3    84.3    +      -       +      +
    339C  GLY      3.8     0.2    -      -       -      -
    340C  PHE      5.1     3.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 338 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    223C  LYS*     3.4    43.1    +      -       +      -
    224C  GLY      3.7    14.5    -      -       -      +
    225C  PRO      4.6     6.1    -      -       -      -
    226C  VAL*     3.6    31.0    -      -       +      -
    334C  LEU*     3.1    28.5    +      -       +      +
    337C  GLU*     1.3   102.8    +      -       +      +
    339C  GLY*     1.3    58.4    +      -       -      +
    340C  PHE      3.3     7.6    -      -       -      -
    350C  ILE*     3.4    20.0    -      -       -      +
    353C  PHE*     3.7    15.2    -      -       +      +
----------------------------------------------------------
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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