Contacts of the helix formed by residues 909 - 920 (chain A) in PDB entry 5B16


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 ASN 909 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    528A  GLY      4.9     3.6    +      -       -      -
    529A  GLN      5.1     0.2    +      -       -      -
    535A  LEU*     3.4    26.5    -      -       -      +
    548A  ARG*     5.4     9.6    +      -       -      +
    660A  TYR      5.3     0.2    -      -       -      +
    661A  ASP*     3.4    46.1    +      -       +      +
    908A  MET*     1.3    80.7    -      -       -      +
    910A  PRO*     1.3    70.8    -      -       +      +
    911A  ASP*     3.1    16.1    +      -       -      +
    912A  HIS*     3.3    22.0    +      -       +      +
    913A  ALA*     3.1    19.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 910 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    530A  MET*     4.2    17.3    -      -       +      -
    535A  LEU*     4.3    10.3    -      -       +      -
    548A  ARG*     4.4    19.1    -      -       -      +
    904A  LEU*     4.5    32.8    -      -       +      -
    906A  PHE*     5.5     4.0    -      -       +      -
    908A  MET      3.4     8.5    -      -       -      +
    909A  ASN*     1.3    84.2    -      -       +      +
    911A  ASP*     1.3    61.3    +      -       -      +
    913A  ALA*     3.3     7.5    +      -       +      +
    914A  ARG*     2.9    40.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 911 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    529A  GLN      3.0    14.9    -      -       -      +
    530A  MET*     3.3    30.4    -      -       +      +
    531A  ASN*     3.2    32.5    -      -       -      +
    535A  LEU*     3.8     1.3    -      -       -      +
    909A  ASN*     3.1    18.2    +      -       -      +
    910A  PRO*     1.3    76.9    -      -       -      +
    912A  HIS*     1.3    93.4    +      -       -      -
    914A  ARG*     3.9     3.1    -      -       -      +
    915A  ASN*     2.9    36.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 912 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    525A  ASN*     3.3    28.9    +      -       +      +
    526A  ASP      3.3    28.2    +      -       -      -
    529A  GLN      3.8     3.1    -      -       -      -
    658A  GLU*     3.2    23.6    -      -       +      +
    659A  LEU*     3.9     3.3    -      -       +      +
    660A  TYR*     3.7    19.6    +      -       +      +
    661A  ASP*     3.4    19.9    +      -       -      -
    908A  MET*     4.2    13.9    -      -       -      -
    909A  ASN*     3.3    20.2    +      -       +      +
    911A  ASP*     1.3   110.5    +      -       -      +
    913A  ALA*     1.3    57.5    +      -       -      +
    916A  SER*     2.9    36.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 913 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    861A  MET*     3.6    18.7    -      -       +      +
    904A  LEU*     6.0     0.9    -      -       +      -
    906A  PHE*     4.1    31.2    -      -       +      -
    908A  MET*     4.6     6.4    -      -       +      -
    909A  ASN      3.1    13.4    +      -       -      +
    910A  PRO*     3.5    12.6    -      -       +      +
    912A  HIS*     1.3    78.0    -      -       -      +
    914A  ARG*     1.3    59.4    +      -       +      +
    916A  SER*     3.8     0.5    -      -       -      -
    917A  LEU*     2.9    37.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 914 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    531A  ASN*     5.9     1.6    -      -       -      +
    622A  ARG*     3.6    38.3    +      -       -      +
    903A  HIS*     3.9    15.6    +      -       -      -
    904A  LEU*     3.3    40.6    -      -       +      +
    910A  PRO*     2.9    25.7    +      -       -      +
    911A  ASP*     4.1     3.4    -      -       -      +
    913A  ALA*     1.3    74.4    -      -       +      +
    915A  ASN*     1.3    59.9    +      -       -      +
    917A  LEU*     3.2     9.3    +      -       +      +
    918A  SER*     2.9    32.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 915 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    523A  TRP*     3.3    36.5    +      -       -      +
    524A  TYR      4.0     7.3    +      -       -      -
    525A  ASN*     3.0    29.4    +      -       -      +
    531A  ASN*     3.7    20.7    +      -       -      +
    911A  ASP*     2.9    33.4    +      -       -      +
    912A  HIS      3.9     1.1    -      -       -      +
    914A  ARG*     1.3    79.1    -      -       -      +
    916A  SER*     1.3    58.0    +      -       -      +
    918A  SER*     3.2     3.7    +      -       -      -
    919A  ASN*     2.8    39.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 916 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    525A  ASN*     3.7     9.9    +      -       -      -
    657A  LEU*     4.6     3.7    -      -       -      +
    658A  GLU*     4.3     8.0    +      -       -      +
    659A  LEU*     3.4    23.8    -      -       -      +
    861A  MET*     4.1    13.8    -      -       -      +
    912A  HIS      2.9    20.3    +      -       -      -
    913A  ALA      3.9     2.2    -      -       -      -
    915A  ASN*     1.3    76.1    -      -       -      +
    917A  LEU*     1.3    59.3    +      -       -      +
    919A  ASN*     4.7     2.2    -      -       -      +
    920A  CYS*     3.1    40.3    +      -       -      -
    921A  GLY*     3.2     6.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 917 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    622A  ARG*     3.8    32.1    -      -       +      +
    623A  PHE*     4.7    13.2    -      -       +      -
    858A  GLN*     3.3    34.4    -      -       -      +
    861A  MET*     3.7    28.7    -      -       +      -
    862A  MET*     6.5     0.4    -      -       -      -
    906A  PHE*     4.1    22.4    -      -       +      -
    913A  ALA*     2.9    27.6    +      -       +      +
    914A  ARG*     3.6     9.0    -      -       +      +
    916A  SER*     1.3    77.2    -      -       -      +
    918A  SER*     1.3    58.8    +      -       -      +
    921A  GLY*     3.3    21.7    +      -       -      -
    922A  ILE      4.5     3.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 918 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    522A  LEU*     5.8     0.5    -      -       -      +
    523A  TRP*     6.5     0.9    -      -       -      -
    914A  ARG      2.9    16.1    +      -       -      -
    915A  ASN*     3.2     4.7    +      -       -      -
    917A  LEU*     1.3    77.6    -      -       -      +
    919A  ASN*     1.3    68.4    +      -       -      +
    921A  GLY      4.7     0.7    -      -       -      -
    923A  ARG*     5.6     3.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 919 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    522A  LEU*     3.6    29.8    -      -       +      +
    523A  TRP*     3.0    36.5    +      -       -      +
    524A  TYR*     5.3     0.2    -      -       -      +
    525A  ASN*     5.2     0.2    +      -       -      -
    915A  ASN*     2.8    28.6    +      -       -      +
    916A  SER*     4.6     3.3    -      -       -      +
    918A  SER*     1.3    87.7    +      -       -      +
    920A  CYS*     1.3    64.7    +      -       +      +
    921A  GLY      3.8     0.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 920 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    656A  ILE*     5.1     6.7    -      -       +      -
    657A  LEU*     3.7    35.7    -      -       +      -
    854A  SER*     4.4     6.2    +      -       -      -
    857A  CYS*     3.2    30.0    -      -       -      +
    916A  SER*     3.1    22.8    +      -       -      -
    919A  ASN*     1.3    79.9    -      -       +      +
    921A  GLY*     1.3    66.4    +      -       -      +
----------------------------------------------------------
 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