Contacts of the helix formed by residues 246 - 260 (chain F) in PDB entry 1NZX


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 246 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    243F  PHE*     3.6     1.8    -      -       -      -
    245F  GLY*     1.3    72.5    -      -       -      -
    247F  THR*     1.3    63.7    +      -       -      +
    248F  GLU*     3.0    31.3    -      -       -      +
    249F  ILE*     3.3     1.7    +      -       -      +
    250F  GLY      3.0    17.2    +      -       -      -
    269F  LEU*     3.3     7.1    -      -       -      +
    270F  GLY*     4.8     3.1    -      -       -      +
    399F  GLU*     5.5     5.8    -      -       -      -
   6502F  NAD      3.0    33.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 247 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    262E  LEU*     3.7    17.7    -      -       +      +
    245F  GLY      3.9     1.0    +      -       -      -
    246F  SER*     1.3    69.9    -      -       -      +
    248F  GLU*     1.3    69.2    +      -       -      +
    250F  GLY*     3.0    10.2    +      -       -      -
    251F  ARG*     3.2    16.4    +      -       -      +
    269F  LEU*     3.7    15.0    -      -       -      +
    270F  GLY*     3.7     3.1    +      -       -      +
    425F  TYR*     3.2    34.5    +      -       +      -
    470F  MET*     3.3    37.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 248 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246F  SER*     3.0    20.5    +      -       -      +
    247F  THR*     1.3    81.1    -      -       -      +
    249F  ILE*     1.3    90.1    +      -       +      +
    251F  ARG*     3.3    25.4    +      -       -      +
    252F  VAL*     3.6     9.6    +      -       -      +
   6502F  NAD      5.9     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 249 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    243F  PHE*     3.4    28.0    -      -       +      -
    246F  SER*     3.3     7.0    +      -       -      +
    247F  THR      3.3     0.2    -      -       -      -
    248F  GLU*     1.3    94.5    -      -       +      +
    250F  GLY*     1.3    65.6    +      -       -      +
    251F  ARG      3.1     2.0    -      -       -      -
    252F  VAL*     3.0    15.4    +      -       +      +
    253F  ILE*     3.0    23.4    +      -       +      +
   6502F  NAD      3.4    74.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 250 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    262E  LEU*     3.9     6.5    -      -       -      -
    243F  PHE*     3.8    10.1    -      -       -      -
    246F  SER      3.0     6.7    +      -       -      -
    247F  THR      3.0     9.5    +      -       -      -
    249F  ILE*     1.3    77.4    -      -       -      +
    251F  ARG*     1.3    62.6    +      -       -      +
    253F  ILE*     3.3     4.1    +      -       -      +
    254F  GLN*     3.1    18.5    +      -       -      +
    267F  LEU*     3.7    15.6    -      -       -      +
    269F  LEU*     3.8    21.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 251 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236E  GLU*     4.9     4.4    +      -       -      -
    258E  GLY      3.2    22.2    -      -       -      +
    259E  SER*     3.0    27.6    +      -       -      +
    260E  SER      2.8    21.0    +      -       -      -
    262E  LEU*     3.7    15.7    -      -       +      +
    247F  THR*     3.2    14.3    +      -       -      +
    248F  GLU*     3.4    16.8    -      -       -      +
    249F  ILE      3.1     0.4    -      -       -      -
    250F  GLY*     1.3    76.1    -      -       -      +
    252F  VAL*     1.3    63.9    +      -       +      +
    254F  GLN*     3.2     3.1    +      -       -      +
    255F  VAL*     2.9    30.9    +      -       +      +
    470F  MET*     3.3    23.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 252 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230F  ALA*     6.2     1.6    -      -       +      -
    248F  GLU      3.7    14.1    -      -       -      +
    249F  ILE*     3.0    23.5    +      -       +      +
    251F  ARG*     1.3    77.2    -      -       +      +
    253F  ILE*     1.3    57.5    +      -       +      +
    255F  VAL*     3.4     7.0    +      -       -      +
    256F  ALA*     2.9    31.6    +      -       +      +
   6502F  NAD      4.0    26.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 253 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    165F  ILE*     3.8    13.2    -      -       +      -
    233F  ALA*     3.7    22.4    -      -       +      +
    241F  VAL*     3.9    28.3    -      -       +      -
    243F  PHE*     3.8    24.9    -      -       +      -
    249F  ILE*     3.0    19.7    +      -       +      +
    250F  GLY      3.5     7.2    -      -       -      +
    252F  VAL*     1.3    77.0    -      -       +      +
    254F  GLN*     1.3    57.7    +      -       -      +
    256F  ALA*     3.1     6.6    +      -       -      +
    257F  ALA*     2.9    27.4    +      -       -      +
    265F  VAL*     4.5     2.9    -      -       +      -
    267F  LEU*     4.1    16.8    -      -       +      -
   6502F  NAD      3.7    28.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 254 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    254E  GLN*     3.9    22.4    +      -       +      +
    257E  ALA*     3.8    14.7    -      -       -      +
    258E  GLY*     3.8    16.6    -      -       -      -
    262E  LEU*     3.2    27.8    -      -       +      +
    263E  LYS      3.5    21.6    +      -       -      -
    264E  ARG*     5.4     0.4    -      -       -      +
    265E  VAL*     3.8    11.7    -      -       -      +
    250F  GLY      3.1    11.0    +      -       -      +
    251F  ARG      3.8     3.1    -      -       -      +
    253F  ILE*     1.3    81.0    -      -       -      +
    255F  VAL*     1.3    62.4    +      -       -      +
    257F  ALA*     3.4     7.2    +      -       -      +
    258F  GLY*     3.1    18.2    +      -       -      -
    265F  VAL*     4.7    13.9    -      -       +      +
    267F  LEU*     3.8    12.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 255 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    255E  VAL*     3.8    29.7    -      -       +      +
    258E  GLY      3.8    10.8    -      -       -      +
    259E  SER*     3.7    23.6    -      -       -      +
    251F  ARG*     2.9    22.3    +      -       +      +
    252F  VAL*     3.7     6.3    -      -       -      +
    254F  GLN*     1.3    74.6    -      -       -      +
    256F  ALA*     1.3    57.4    -      -       -      +
    258F  GLY      3.4     1.0    +      -       -      -
    259F  SER*     2.7    45.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 256 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230F  ALA*     6.3     0.9    -      -       -      -
    233F  ALA*     3.7    20.9    -      -       +      +
    234F  SER*     3.6    21.6    +      -       -      +
    252F  VAL*     2.9    21.7    +      -       +      +
    253F  ILE*     3.5     5.2    -      -       +      +
    255F  VAL*     1.3    78.8    -      -       -      +
    257F  ALA*     1.3    56.4    +      -       -      +
    259F  SER*     3.5     5.8    +      -       -      -
    260F  SER*     2.9    32.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 257 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    254E  GLN*     3.3    16.8    -      -       -      +
    233F  ALA      3.9     2.8    +      -       -      +
    241F  VAL*     5.0     0.4    -      -       +      -
    253F  ILE      2.9    12.8    +      -       -      +
    254F  GLN      3.6     3.1    -      -       -      +
    256F  ALA*     1.3    78.5    -      -       -      +
    258F  GLY*     1.3    60.9    +      -       -      +
    260F  SER*     3.3    11.4    +      -       -      -
    262F  LEU*     2.9    27.1    +      -       -      -
    263F  LYS*     3.7    19.3    -      -       +      -
    265F  VAL*     3.5    26.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 258 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    251E  ARG*     3.1    34.8    -      -       -      +
    254E  GLN*     3.4    30.6    +      -       -      -
    255E  VAL*     3.8    10.8    -      -       -      -
    254F  GLN      3.1     9.0    +      -       -      -
    255F  VAL      3.9     2.0    -      -       -      -
    257F  ALA*     1.3    79.5    -      -       -      +
    259F  SER*     1.3    57.6    +      -       -      +
    260F  SER      4.6     0.2    -      -       -      +
    262F  LEU*     4.1     5.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 259 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    251E  ARG*     4.0    11.3    +      -       -      +
    255E  VAL*     3.6    13.1    -      -       -      +
    236F  GLU*     5.0     0.2    -      -       -      +
    255F  VAL*     2.7    29.9    +      -       -      +
    256F  ALA*     3.8     6.7    -      -       -      -
    258F  GLY*     1.3    76.3    -      -       -      +
    260F  SER*     1.3    62.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 260 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    251E  ARG*     3.2    28.5    +      -       -      -
    234F  SER*     3.4    28.3    -      -       -      -
    235F  HIS      4.5     0.2    -      -       -      -
    236F  GLU*     3.6    21.9    -      -       -      +
    256F  ALA      2.9    20.6    +      -       -      -
    257F  ALA      3.3     3.8    +      -       -      -
    258F  GLY      3.4     1.0    -      -       -      -
    259F  SER*     1.3    77.0    -      -       -      +
    261F  ASN*     1.3    66.0    +      -       -      -
    262F  LEU      3.6     1.1    -      -       -      -
    263F  LYS*     2.9    20.6    +      -       -      -
----------------------------------------------------------
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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