Contacts of the strand formed by residues 7 - 14 (chain X) in PDB entry 3NZA


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 LEU 7 (chain X).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5X  LYS      4.3     4.9    -      -       -      +
      6X  SER*     1.3    82.8    -      -       -      +
      8X  THR*     1.4    64.1    +      -       -      +
     56X  LEU*     5.1     2.7    -      -       +      -
     98X  LEU*     4.6    15.5    -      -       +      -
    102X  LEU*     4.0    21.5    -      -       +      -
    120X  ILE*     3.8    30.5    -      -       +      +
    122X  VAL*     5.1     8.5    -      -       +      -
    132X  ALA*     5.7     1.1    -      -       -      -
    135X  HIS*     3.6    42.0    -      -       +      +
    137X  LYS*     2.9    14.4    +      -       +      -
    138X  LEU*     3.2    18.5    -      -       +      +
    139X  ASP*     3.1    32.4    +      -       -      +
    140X  ARG      3.8     0.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 8 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6X  SER*     5.2     1.4    +      -       -      -
      7X  LEU*     1.4    76.8    +      -       -      +
      9X  LEU*     1.3    71.5    +      -       -      +
    119X  ARG*     5.7     1.4    -      -       -      +
    120X  ILE      3.1     9.7    +      -       -      -
    121X  PHE*     3.2    26.5    -      -       +      -
    122X  VAL*     2.8    25.3    +      -       -      +
    138X  LEU*     3.9     2.5    -      -       -      -
    139X  ASP*     4.6     1.0    +      -       -      -
    140X  ARG*     3.3    28.6    +      -       +      +
    142X  MET*     3.7    22.7    -      -       +      -
    180X  TRP*     3.6    18.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 9 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8X  THR*     1.3    77.6    -      -       -      +
     10X  ILE*     1.3    55.3    +      -       -      +
     11X  VAL*     3.7    19.1    -      -       +      -
    122X  VAL*     3.4     8.7    -      -       +      +
    129X  TYR*     3.5    27.4    -      -       +      +
    132X  ALA*     4.2    14.6    -      -       +      -
    133X  MET*     3.7    22.9    -      -       +      -
    138X  LEU*     3.6     9.8    -      -       +      +
    140X  ARG      2.8    12.2    +      -       -      +
    141X  ILE*     3.4    14.1    -      -       +      -
    142X  MET      2.8    31.2    +      -       -      -
    156X  PHE*     3.6    37.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 10 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9X  LEU*     1.3    74.6    -      -       -      +
     11X  VAL*     1.3    58.0    +      -       -      +
     35X  TYR*     4.4     9.6    -      -       +      -
     36X  PHE*     3.7    30.1    -      -       +      -
     39X  VAL*     4.0    29.8    -      -       +      -
     40X  THR*     3.9    10.3    -      -       +      -
    121X  PHE*     4.2     9.6    -      -       +      -
    122X  VAL      2.9    11.0    +      -       -      +
    123X  ILE*     3.7    29.2    -      -       +      -
    129X  TYR*     2.7    25.1    +      -       -      -
    142X  MET*     3.5    25.1    -      -       +      +
    144X  THR*     6.0     0.2    -      -       -      +
    207X  D2K      3.0    25.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 11 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9X  LEU*     3.7    17.9    -      -       +      -
     10X  ILE*     1.3    77.5    -      -       -      +
     12X  ALA*     1.3    64.6    +      -       -      +
     13X  LEU*     4.3    13.0    -      -       +      -
     19X  ILE*     3.9    14.4    -      -       +      -
    129X  TYR*     3.3    33.0    -      -       +      +
    141X  ILE*     4.1    10.5    -      -       +      -
    142X  MET      3.1    11.3    +      -       -      +
    143X  ALA*     4.2     4.0    -      -       -      -
    144X  THR      2.8    29.8    +      -       -      -
    156X  PHE*     3.9    10.5    -      -       +      -
    160X  PHE*     5.0     0.4    -      -       +      -
    207X  D2K      3.4     8.7    +      -       -      -
    208X  NDP      3.4     8.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 12 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11X  VAL*     1.3    73.4    -      -       -      +
     13X  LEU*     1.3    64.2    +      -       -      +
     19X  ILE*     3.7     2.6    -      -       -      +
     27X  TRP*     3.7    19.8    -      -       +      +
     32X  GLU*     4.1    11.7    -      -       -      +
    144X  THR*     3.4    13.5    -      -       -      +
    146X  ILE*     4.3     6.3    -      -       +      -
    207X  D2K      3.5    18.4    +      -       +      +
    208X  NDP      2.7    38.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 13 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11X  VAL*     4.3     8.7    -      -       +      -
     12X  ALA*     1.3    76.8    -      -       -      +
     14X  THR*     1.3    69.0    +      -       -      +
     17X  TYR*     3.6    33.2    -      -       +      -
     18X  GLY      3.3     7.0    -      -       -      +
     19X  ILE*     3.6    15.3    -      -       +      -
     27X  TRP*     4.4     1.1    -      -       -      -
    143X  ALA*     4.0    23.6    -      -       +      -
    144X  THR      2.9    23.2    +      -       -      +
    145X  ILE*     3.6    10.7    -      -       +      -
    146X  ILE*     2.8    29.1    +      -       -      +
    156X  PHE*     4.1    13.0    -      -       +      -
    160X  PHE*     3.8    21.3    -      -       +      -
    161X  ARG*     5.1     2.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 14 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13X  LEU*     1.3    80.2    -      -       -      +
     15X  THR*     1.3    59.1    +      -       -      +
     16X  SER*     3.1    14.4    +      -       -      -
     17X  TYR*     2.8    19.2    +      -       -      -
     18X  GLY*     3.0    38.6    +      -       -      +
     27X  TRP*     3.8    21.8    -      -       +      -
    145X  ILE*     3.7     8.1    -      -       -      +
    146X  ILE*     3.3     8.7    -      -       +      -
    148X  LYS      3.2    24.5    -      -       -      +
    149X  ASP*     4.6     2.1    +      -       -      -
    150X  ILE*     4.2    16.7    +      -       +      +
    152X  CYS*     4.4     2.9    -      -       -      -
----------------------------------------------------------
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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