Contacts of the helix formed by residues 580 - 591 (chain A) in PDB entry 1T9A


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 GLN 580 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    551A  ALA*     3.7    21.1    -      -       +      -
    579A  GLU*     1.3    70.7    -      -       -      +
    581A  GLY*     1.3    63.9    +      -       -      +
    582A  MET      3.4     2.5    -      -       -      -
    583A  VAL*     3.0    17.6    +      -       +      +
    584A  THR*     3.0    21.4    +      -       -      +
    597A  HIS      3.5     8.7    +      -       -      -
    598A  THR*     3.1    38.1    +      -       -      +
    599A  HIS      4.1     0.6    -      -       -      +
    600A  GLN*     3.7     8.6    +      -       -      +
   1698A  P23      3.3    19.5    -      -       -      -
    113B  TYR*     3.5    31.0    +      -       -      +
    114B  PRO*     3.3    24.6    -      -       -      +
    135B  LEU*     4.6     5.1    -      -       -      +
   1700B  YF4      4.4     1.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 581 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    499A  GLN*     3.0    27.2    +      -       -      -
    579A  GLU*     3.2     8.3    +      -       -      -
    580A  GLN*     1.3    71.6    -      -       -      +
    582A  MET*     1.3    56.5    -      -       -      +
    584A  THR*     2.9    11.1    +      -       -      -
    585A  GLN*     2.8    31.2    +      -       -      +
   1698A  P23      2.7    20.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 582 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    355A  HIS*     4.0    20.9    -      -       -      +
    498A  GLY*     3.5    17.7    -      -       -      -
    499A  GLN*     3.4    10.5    -      -       +      +
    502A  MET*     3.4    33.2    -      -       +      -
    580A  GLN      3.3     0.8    +      -       -      -
    581A  GLY*     1.3    73.8    -      -       -      +
    583A  VAL*     1.3    60.6    +      -       -      +
    585A  GLN*     3.5    15.0    -      -       -      +
    586A  TRP*     3.1    37.4    +      -       -      -
    651A  VAL*     4.5     2.5    -      -       +      -
    695A  1TB      3.8    28.0    -      -       -      +
    701A  FAD      3.9     9.2    -      -       +      -
   1698A  P23      3.0    32.0    +      -       +      +
   1700B  YF4      4.2     8.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 583 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    580A  GLN*     3.0    17.5    +      -       +      +
    582A  MET*     1.3    74.1    -      -       -      +
    584A  THR*     1.3    66.0    +      -       -      +
    585A  GLN      3.0     1.3    -      -       -      -
    586A  TRP*     3.1     3.8    +      -       -      +
    587A  GLN*     2.8    22.6    +      -       -      +
    598A  THR*     3.4    27.6    -      -       +      -
    695A  1TB      3.7    17.0    -      -       +      -
   1698A  P23      4.7     0.2    -      -       +      -
    114B  PRO*     4.7     5.4    -      -       +      -
    115B  GLY*     4.6     8.3    -      -       -      +
    119B  LEU*     3.8    25.6    -      -       +      -
   1700B  YF4      3.3    34.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 584 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    499A  GLN*     5.3     0.5    +      -       -      -
    579A  GLU*     2.7    29.3    +      -       +      +
    580A  GLN      3.0    14.5    +      -       -      +
    581A  GLY*     2.9    19.6    +      -       -      -
    583A  VAL*     1.3    75.6    -      -       -      +
    585A  GLN*     1.3    52.1    +      -       -      +
    587A  GLN*     3.1     9.0    +      -       -      +
    588A  SER*     2.7    39.8    +      -       -      -
    595A  TYR*     3.3    18.7    -      -       +      -
    598A  THR*     3.4    28.9    -      -       -      +
    599A  HIS*     4.0    12.3    -      -       -      +
    648A  LYS*     4.0     6.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 585 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    355A  HIS*     3.9     7.5    -      -       -      -
    499A  GLN*     2.8    31.2    +      -       -      +
    581A  GLY      2.8    16.9    +      -       -      +
    582A  MET*     3.5    14.9    -      -       -      +
    584A  THR*     1.3    77.4    +      -       -      +
    586A  TRP*     1.3    60.2    +      -       +      +
    588A  SER*     3.1     8.8    +      -       -      -
    589A  LEU*     3.0    39.1    +      -       +      +
    650A  PRO*     3.8    15.0    -      -       +      +
    651A  VAL*     2.9    42.0    +      -       -      +
    652A  LEU*     5.1     0.8    -      -       -      +
    654A  MET*     3.5    23.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 586 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    354A  MET*     3.9    13.9    -      -       +      -
    355A  HIS*     5.3     0.2    +      -       -      -
    582A  MET*     3.1    29.1    -      -       -      +
    583A  VAL      3.1     7.8    +      -       -      +
    585A  GLN*     1.3    82.1    -      -       +      +
    587A  GLN*     1.3    58.2    +      -       -      +
    590A  PHE*     2.8    64.7    +      +       -      +
    591A  TYR*     3.7     4.3    -      +       -      -
    654A  MET*     3.5    31.4    -      -       +      +
    656A  ALA*     4.0    16.2    -      -       +      -
    657A  GLY      5.2     1.6    -      -       -      -
    695A  1TB      3.2    87.3    +      +       +      -
    119B  LEU*     3.9    18.2    -      -       +      -
    251B  LYS*     4.3     7.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 587 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    583A  VAL*     2.8    16.9    +      -       -      +
    584A  THR*     3.5    11.1    -      -       -      +
    586A  TRP*     1.3    77.2    -      -       -      +
    588A  SER*     1.3    57.3    +      -       -      +
    591A  TYR*     3.1    31.0    +      -       +      +
    593A  HIS*     3.1    19.5    +      -       -      -
    594A  ARG      3.6    17.0    -      -       -      +
    595A  TYR*     3.3    21.9    -      -       +      +
    596A  SER*     3.1    23.3    +      -       -      +
    598A  THR*     2.9    42.6    +      -       -      +
    114B  PRO*     5.4     0.3    -      -       -      +
    119B  LEU*     4.2    18.8    -      -       +      +
    122B  TYR*     5.0     2.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 588 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    584A  THR      2.7    24.9    +      -       -      -
    585A  GLN*     3.4     8.8    -      -       -      -
    587A  GLN*     1.3    76.6    -      -       -      +
    589A  LEU*     1.3    65.4    +      -       -      +
    592A  GLU*     4.2     3.1    +      -       -      -
    593A  HIS*     3.6    41.7    +      -       -      +
    595A  TYR*     2.6    24.2    +      -       -      -
    648A  LYS*     4.5     5.7    -      -       -      +
    675A  GLN*     5.2     0.7    -      -       -      +
    679A  ARG*     5.1     0.3    -      -       -      -
    682A  ARG*     5.0     0.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 589 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    585A  GLN*     3.0    32.2    +      -       +      +
    588A  SER*     1.3    84.0    -      -       -      +
    590A  PHE*     1.3    83.5    +      -       +      +
    592A  GLU      4.9     1.3    +      -       -      -
    650A  PRO*     5.8     6.1    -      -       +      -
    652A  LEU*     6.2     2.0    -      -       +      -
    654A  MET*     3.5    36.3    -      -       +      -
    665A  ILE*     4.9    16.8    -      -       +      -
    675A  GLN*     5.9     4.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 590 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    586A  TRP*     2.8    64.1    +      +       +      +
    589A  LEU*     1.3   102.6    -      -       +      +
    591A  TYR*     1.3    81.0    +      -       +      +
    592A  GLU*     3.6     4.1    +      -       -      +
    594A  ARG*     5.3     0.9    +      -       -      -
    654A  MET*     4.6     1.8    -      -       +      -
    656A  ALA*     4.2    21.8    -      -       +      -
    657A  GLY*     5.6     3.1    -      -       -      -
    665A  ILE*     6.2     3.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 591 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    586A  TRP*     3.7    13.5    -      +       -      -
    587A  GLN*     3.1    26.9    +      -       +      +
    590A  PHE*     1.3    95.8    -      +       +      +
    592A  GLU*     1.3    70.4    +      -       -      +
    594A  ARG*     2.9    37.3    +      -       -      +
    119B  LEU*     3.8    40.5    -      -       +      +
    120B  PRO*     3.8    20.0    -      -       +      +
    123B  ASP*     3.4    43.7    -      -       +      +
    251B  LYS*     4.0    11.7    +      -       -      -
----------------------------------------------------------
 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