Contacts of the helix formed by residues 245 - 256 (chain C) in PDB entry 2ZXX


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 GLU 245 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    229C  PHE*     4.0     3.9    -      -       -      -
    233C  LYS*     2.5    31.0    +      -       -      -
    237C  GLN*     4.2     1.2    -      -       -      +
    243C  ARG*     3.0    53.7    +      -       +      +
    244C  PHE*     1.3    75.3    -      -       -      +
    246C  GLU*     1.3    67.3    +      -       -      +
    247C  ARG*     4.2    12.3    -      -       +      +
    248C  ASN*     2.7    34.3    +      -       -      +
    249C  VAL*     3.5     3.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 246 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    229C  PHE*     3.4    45.7    -      -       +      -
    245C  GLU*     1.3    72.9    +      -       -      +
    247C  ARG*     1.3    55.4    +      -       -      +
    249C  VAL*     2.6    31.8    +      -       -      +
    250C  GLY*     2.9     9.2    +      -       -      -
    282C  LEU*     4.4    21.4    +      -       +      +
    360C  LEU*     3.9    22.2    -      -       +      +
    362C  GLN*     4.8     8.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 247 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    245C  GLU*     3.2    10.0    -      -       +      +
    246C  GLU*     1.3    77.7    -      -       -      +
    248C  ASN*     1.3    78.7    +      -       -      +
    250C  GLY*     3.2     3.7    +      -       -      +
    251C  GLN*     3.0    53.0    +      -       -      +
    355C  ILE      5.0     2.0    +      -       -      -
    356C  GLU*     5.8     1.0    +      -       -      -
    357C  PRO*     3.4    30.5    -      -       +      +
    360C  LEU*     5.2     2.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 248 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206C  LEU*     4.6     0.5    -      -       -      +
    209C  MSE      3.6    29.1    -      -       -      +
    243C  ARG*     4.0     2.4    +      -       -      +
    244C  PHE*     3.5    25.9    -      -       +      +
    245C  GLU*     2.7    46.4    +      -       -      +
    247C  ARG*     1.3    80.3    +      -       -      +
    249C  VAL*     1.3    64.5    +      -       -      +
    251C  GLN*     2.9    31.3    +      -       -      +
    252C  ILE*     2.9    18.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 249 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    213C  MSE      3.7    27.6    -      -       +      -
    229C  PHE*     3.6    32.8    -      -       +      -
    244C  PHE*     3.8    18.1    -      -       +      -
    246C  GLU*     2.6    21.3    +      -       +      +
    248C  ASN*     1.3    72.2    -      -       -      +
    250C  GLY*     1.3    55.4    +      -       -      +
    251C  GLN      3.2     0.3    +      -       -      -
    252C  ILE*     3.2    11.2    +      -       +      +
    253C  LYS*     2.8    28.9    +      -       -      +
    262C  PHE*     3.7    24.7    -      -       +      -
    282C  LEU*     4.8     4.9    -      -       +      -
    284C  ILE*     5.2     0.7    -      -       +      -
    360C  LEU*     4.8     8.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 250 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246C  GLU      2.9    10.8    +      -       -      -
    247C  ARG*     3.2     5.8    +      -       -      -
    248C  ASN      3.2     0.4    -      -       -      -
    249C  VAL*     1.3    77.2    -      -       -      +
    251C  GLN*     1.3    59.6    +      -       -      +
    253C  LYS*     3.3     5.6    +      -       -      -
    254C  THR      3.1    11.3    +      -       -      -
    357C  PRO*     3.5     3.8    -      -       -      -
    358C  ALA*     2.6    42.9    +      -       -      +
    360C  LEU*     4.5    13.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 251 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206C  LEU*     3.6    24.1    -      -       +      +
    209C  MSE      5.1     0.3    -      -       -      +
    247C  ARG*     3.0    42.6    +      -       -      +
    248C  ASN*     2.9    32.5    +      -       -      +
    250C  GLY*     1.3    70.7    -      -       -      +
    252C  ILE*     1.3    64.5    +      -       -      +
    253C  LYS      2.9     3.8    -      -       -      -
    254C  THR*     2.8    16.3    +      -       -      -
    255C  VAL*     3.0    14.2    +      -       -      +
    355C  ILE*     3.3    39.0    +      -       +      +
    357C  PRO*     3.9    11.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 252 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206C  LEU*     4.5     9.4    -      -       +      +
    209C  MSE      5.3     2.9    -      -       +      -
    210C  PHE*     3.6    38.4    -      -       +      +
    213C  MSE      3.9    18.2    -      -       +      -
    244C  PHE*     5.2     4.3    -      -       +      -
    248C  ASN      2.9    19.3    +      -       -      +
    249C  VAL*     3.2    15.2    +      -       +      +
    251C  GLN*     1.3    72.4    -      -       -      +
    253C  LYS*     1.3    68.9    +      -       +      +
    256C  TYR*     3.0    23.9    +      -       +      +
    259C  SER*     5.2     0.7    -      -       -      +
    260C  TYR*     3.7    28.9    -      -       +      -
    262C  PHE*     5.0     0.4    -      -       +      -
    310C  PHE*     3.6    25.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 253 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    249C  VAL      2.8    13.0    +      -       -      +
    250C  GLY*     3.4    13.5    -      -       -      +
    251C  GLN      2.8     1.0    +      -       -      -
    252C  ILE*     1.3    79.3    -      -       -      +
    254C  THR*     1.3    63.7    +      -       -      +
    256C  TYR      2.9     4.3    +      -       -      +
    257C  PRO*     2.8    58.3    +      -       +      +
    260C  TYR*     4.2     6.6    +      -       -      -
    261C  ARG*     5.7     0.6    -      -       -      +
    262C  PHE*     3.7    37.1    -      -       +      -
    358C  ALA*     3.6    18.4    -      -       +      -
    359C  GLU      4.0    15.0    -      -       -      +
    360C  LEU*     5.1     2.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 254 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    250C  GLY      3.1     1.1    +      -       -      -
    251C  GLN      2.8    11.7    +      -       -      -
    253C  LYS*     1.3    76.2    -      -       -      +
    255C  VAL*     1.3    60.1    +      -       -      +
    256C  TYR      3.4     0.2    +      -       -      -
    257C  PRO*     3.6    11.2    -      -       -      +
    317C  ARG*     3.8    21.5    +      -       -      +
    355C  ILE*     4.3     8.7    -      -       +      -
    356C  GLU*     2.5    31.1    +      -       +      +
    357C  PRO      3.3     0.2    -      -       -      -
    358C  ALA*     2.8    29.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 255 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206C  LEU*     4.2     5.2    -      -       +      -
    251C  GLN      3.0    12.5    +      -       -      +
    252C  ILE      3.9     0.9    -      -       -      +
    254C  THR*     1.3    76.8    -      -       -      +
    256C  TYR*     1.3    56.8    +      -       -      +
    257C  PRO*     3.6     3.7    -      -       -      +
    310C  PHE*     3.3    49.1    -      -       +      +
    313C  ASN*     3.1    26.6    +      -       +      +
    314C  LEU*     3.6    35.0    -      -       +      -
    317C  ARG*     4.4     9.8    +      -       -      +
    355C  ILE*     4.0    22.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 256 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210C  PHE*     4.0    13.9    -      +       +      -
    252C  ILE      3.0    12.7    +      -       -      +
    253C  LYS*     2.9     8.5    +      -       -      +
    255C  VAL*     1.3    80.5    -      -       +      +
    257C  PRO*     1.3    67.6    -      -       -      +
    258C  THR*     3.5    31.5    +      -       +      -
    259C  SER*     2.9    40.0    -      -       -      -
    306C  ARG*     3.8    34.4    +      -       +      +
    309C  VAL*     3.5    39.3    -      -       +      +
    310C  PHE*     3.9    20.2    -      +       +      -
    313C  ASN*     4.7     4.0    -      -       -      -
----------------------------------------------------------
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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