Contacts of the strand formed by residues 523 - 531 (chain A) in PDB entry 1NA8


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 PHE 523 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    518A  TYR*     3.3    12.9    -      +       +      -
    519A  ASP*     3.3     3.1    -      -       -      -
    520A  GLN      2.7    34.1    +      -       -      +
    521A  HIS*     3.2     2.6    -      -       +      +
    522A  GLY*     1.3    78.9    -      -       -      +
    524A  ARG*     1.3    60.4    +      -       -      +
    525A  ILE*     3.9    15.7    -      -       +      -
    547A  MET*     4.1    10.3    -      -       +      -
    548A  LEU      3.3    14.1    -      -       -      -
    549A  SER*     4.5     0.4    -      -       -      +
    555A  ILE*     3.6    21.8    -      -       +      -
    558A  ILE*     3.8    25.8    -      -       +      -
    580A  LEU*     3.5    24.5    -      -       +      -
    612A  LEU*     3.9    17.0    -      -       +      -
    614A  PHE*     3.8    48.5    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 524 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    516A  THR*     4.9    10.0    +      -       +      +
    518A  TYR      3.1    10.5    -      -       -      +
    519A  ASP*     3.4    22.1    +      -       +      +
    522A  GLY      5.0     3.8    -      -       -      +
    523A  PHE*     1.3    73.9    -      -       -      +
    525A  ILE*     1.3    70.3    +      -       -      +
    526A  LEU*     4.5    13.1    -      -       +      +
    546A  SER      3.7     0.7    -      -       -      +
    547A  MET*     3.4     4.7    -      -       -      -
    548A  LEU*     2.9    57.3    +      -       +      +
    550A  THR*     6.4     1.8    -      -       -      -
    519B  ASP*     5.0     1.2    +      -       -      -
    522B  GLY*     5.5     4.0    +      -       -      -
    524B  ARG*     2.9    55.9    -      -       -      +
    548B  LEU*     5.6     9.3    -      -       -      +
    550B  THR*     3.8    33.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 525 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    516A  THR*     3.7     2.6    -      -       -      -
    517A  VAL*     2.9    34.2    +      -       +      -
    518A  TYR*     2.9    30.9    +      -       +      +
    523A  PHE*     3.9    12.6    -      -       +      -
    524A  ARG*     1.3    77.1    -      -       -      +
    526A  LEU*     1.3    64.8    +      -       -      +
    527A  PHE*     4.5     1.3    -      -       +      -
    545A  VAL*     3.6    23.3    -      -       +      -
    546A  SER      3.4     1.1    -      -       -      -
    547A  MET*     3.5    41.1    -      -       +      -
    560A  PHE*     4.1    19.1    -      -       +      -
    612A  LEU*     4.1    21.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 526 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    514A  PRO*     4.7     7.4    -      -       +      -
    515A  VAL      3.4     5.2    -      -       -      +
    516A  THR*     3.5    30.1    -      -       +      +
    524A  ARG*     4.5    16.8    -      -       +      +
    525A  ILE*     1.3    78.6    -      -       -      +
    527A  PHE*     1.3    69.8    +      -       -      +
    528A  HIS*     4.2    21.8    -      -       +      +
    544A  VAL      3.6     0.5    -      -       -      +
    545A  VAL*     3.3     7.1    -      -       -      +
    546A  SER*     2.8    41.6    +      -       -      +
    548A  LEU*     4.0    25.6    -      -       +      -
    550B  THR*     4.1    20.4    -      -       +      -
    583B  PHE*     4.3     9.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 527 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    514A  PRO*     3.1     5.5    -      -       -      +
    515A  VAL*     2.9    37.9    +      -       +      +
    517A  VAL*     3.6    25.1    -      -       +      -
    525A  ILE*     4.5     1.3    -      -       +      -
    526A  LEU*     1.3    80.6    -      -       -      +
    528A  HIS*     1.3    63.5    +      -       -      +
    529A  PHE*     4.1    17.2    -      +       +      -
    543A  VAL*     3.7    19.7    -      -       +      -
    544A  VAL      3.8     2.0    -      -       -      -
    545A  VAL*     3.5    29.6    -      -       +      -
    560A  PHE*     3.6    31.6    -      +       -      -
    562A  SER*     4.8     0.2    -      -       -      -
    596A  LEU*     5.1     2.0    -      -       +      -
    608A  LEU*     4.4    15.3    -      -       +      -
    627A  VAL*     4.2    14.6    -      -       +      -
    630A  PHE*     4.1    26.5    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 528 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    509A  PRO*     4.7     7.6    -      -       +      -
    510A  SER      4.8     7.0    -      -       -      +
    512A  ILE      4.8     7.4    -      -       -      -
    514A  PRO*     3.4    40.1    -      -       +      +
    526A  LEU*     4.2    11.4    -      -       +      +
    527A  PHE*     1.3    74.6    -      -       -      +
    529A  PHE*     1.3    65.6    +      -       -      +
    543A  VAL*     3.4     5.9    -      -       -      +
    544A  VAL*     2.8    44.2    +      -       +      +
    546A  SER*     4.7     1.4    +      -       -      -
    550B  THR      4.6     2.2    +      -       -      -
    551B  ALA      6.3     0.2    -      -       -      -
    552B  PRO*     6.2     3.1    -      -       +      +
    583B  PHE*     3.4    44.7    +      +       -      +
    585B  PRO*     4.0    28.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 529 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    509A  PRO*     3.6     3.1    -      -       -      +
    510A  SER*     2.8    31.1    +      -       -      +
    512A  ILE*     3.6    31.0    +      -       +      +
    513A  LEU      4.2     8.3    -      -       -      -
    515A  VAL*     3.6    26.2    -      -       +      -
    527A  PHE*     4.1    22.4    -      +       +      -
    528A  HIS*     1.3    76.4    -      -       -      +
    530A  ALA*     1.3    62.4    +      -       -      +
    541A  LEU*     4.0    10.1    -      -       +      -
    542A  VAL      3.6     2.2    -      -       -      -
    543A  VAL*     4.0    19.1    -      -       +      -
    544A  VAL*     6.2     0.2    -      -       -      -
    627A  VAL*     6.0     0.7    -      -       +      -
    629A  GLN      3.6    20.9    -      -       -      -
    630A  PHE*     3.6    28.7    -      +       -      -
    631A  PRO*     3.7    24.5    -      -       +      -
    639A  LEU*     5.0     2.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 530 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    507A  ILE*     3.5    26.9    -      -       +      -
    508A  LYS      3.5    19.7    -      -       -      +
    509A  PRO*     3.7     3.4    -      -       +      -
    510A  SER      4.1     5.2    -      -       -      +
    529A  PHE*     1.3    77.2    -      -       -      +
    531A  ARG*     1.3    64.9    +      -       -      +
    532A  ASP      3.8     0.2    +      -       -      -
    541A  LEU*     3.7     7.8    -      -       -      +
    542A  VAL*     3.1    35.8    +      -       +      +
    544A  VAL*     5.5     1.3    -      -       +      -
    639A  LEU*     3.9    10.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 531 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    507A  ILE*     5.0     1.7    -      -       -      +
    508A  LYS      4.5     6.3    +      -       -      +
    530A  ALA*     1.3    83.9    -      -       -      +
    532A  ASP*     1.3    77.9    +      -       -      +
    533A  PRO*     3.2    13.9    -      -       +      +
    540A  VAL      5.0     0.7    -      -       -      -
    542A  VAL*     3.9     3.0    -      -       -      +
    636A  TRP      3.8    20.2    -      -       -      +
    637A  GLY*     3.3    18.0    +      -       -      +
    638A  SER*     2.9    36.8    +      -       -      +
    639A  LEU*     3.2    25.0    +      -       +      +
----------------------------------------------------------
 Back to top of page


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