Contacts of the helix formed by residues 164 - 187 (chain B) in PDB entry 5A6C


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 PRO 164 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    152B  PHE*     6.0     1.3    -      -       +      -
    163B  PHE*     1.4    96.0    -      -       -      +
    165B  GLU*     1.3    67.8    +      -       -      +
    166B  GLU*     3.1    19.8    +      -       +      +
    167B  VAL*     3.3    23.0    +      -       +      -
    168B  ARG*     3.1    15.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 165 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    163B  PHE      4.6     0.2    -      -       -      -
    164B  PRO*     1.3    72.8    -      -       -      +
    166B  GLU*     1.3    65.7    +      -       -      +
    168B  ARG*     3.3    23.2    -      -       -      +
    169B  ASP*     2.9    52.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 166 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    152B  PHE*     3.6    28.5    -      -       +      -
    164B  PRO*     3.2    21.3    -      -       -      +
    165B  GLU*     1.3    83.1    +      -       -      +
    167B  VAL*     1.3    60.6    +      -       +      +
    168B  ARG      3.1     0.9    -      -       -      -
    169B  ASP*     3.2     7.2    +      -       -      +
    170B  ALA*     2.9    31.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 167 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    149B  GLY      3.7    17.0    -      -       -      +
    152B  PHE*     3.7    38.8    -      -       +      +
    163B  PHE*     4.6     9.4    -      -       +      -
    164B  PRO*     3.3    30.1    +      -       +      +
    166B  GLU*     1.3    75.0    -      -       +      +
    168B  ARG*     1.3    58.2    +      -       -      +
    170B  ALA*     4.1     2.9    -      -       -      -
    171B  LEU*     2.9    49.1    +      -       +      +
    208B  LEU*     5.6     0.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 168 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    163B  PHE*     4.6    24.3    -      -       +      +
    164B  PRO      3.1    13.4    +      -       -      +
    165B  GLU*     3.3    29.4    -      -       -      +
    167B  VAL*     1.3    77.6    -      -       -      +
    169B  ASP*     1.3    60.8    +      -       -      +
    171B  LEU*     3.9     0.7    -      -       -      +
    172B  GLN*     2.9    49.3    +      -       +      +
    208B  LEU*     3.3    41.2    +      -       -      +
    210B  ASN*     4.6     7.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 169 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    165B  GLU*     2.9    47.2    +      -       -      +
    166B  GLU*     3.2     7.0    +      -       -      +
    168B  ARG*     1.3    78.0    -      -       -      +
    170B  ALA*     1.3    57.8    +      -       -      +
    172B  GLN*     3.8     4.0    -      -       -      +
    173B  ALA*     2.9    31.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 170 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145B  TYR*     3.4    24.4    -      -       +      +
    148B  LYS*     4.1    22.7    -      -       +      -
    149B  GLY*     4.0    22.9    -      -       -      +
    152B  PHE*     5.4     2.0    -      -       +      -
    166B  GLU      2.9    16.0    +      -       -      +
    167B  VAL      4.2     0.2    -      -       -      +
    169B  ASP*     1.3    77.7    -      -       -      +
    171B  LEU*     1.3    57.5    +      -       -      +
    173B  ALA*     3.7     0.2    -      -       -      +
    174B  ALA*     3.0    25.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 171 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    146B  HIS*     3.6    36.1    -      -       +      +
    149B  GLY*     4.3    20.0    -      -       -      -
    167B  VAL*     2.9    37.6    +      -       +      +
    170B  ALA*     1.3    75.2    -      -       -      +
    172B  GLN*     1.3    60.8    +      -       -      +
    174B  ALA*     3.2     4.0    -      -       -      +
    175B  VAL*     2.9    30.8    +      -       -      +
    204B  THR*     3.3    11.6    -      -       +      +
    207B  LEU*     3.7    39.7    -      -       +      +
    208B  LEU*     3.8    20.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 172 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168B  ARG*     2.9    33.6    +      -       +      +
    169B  ASP*     3.8     4.7    -      -       -      +
    171B  LEU*     1.3    74.2    -      -       -      +
    173B  ALA*     1.3    65.1    +      -       -      +
    175B  VAL*     2.9    27.6    +      -       -      +
    176B  ASP*     3.0    33.2    +      -       -      +
    208B  LEU*     3.9    18.5    -      -       +      +
    210B  ASN*     5.2     2.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 173 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145B  TYR*     3.9    26.5    -      -       +      -
    169B  ASP      2.9    19.2    +      -       -      +
    170B  ALA*     3.7     5.4    -      -       -      +
    172B  GLN*     1.3    75.2    -      -       -      +
    174B  ALA*     1.3    62.6    +      -       -      +
    175B  VAL      3.3     0.2    +      -       -      -
    176B  ASP*     3.3    11.5    +      -       -      +
    177B  PHE*     3.0    35.3    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 174 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142B  GLY*     3.8    15.5    -      -       -      +
    145B  TYR*     3.7    23.0    -      -       +      +
    146B  HIS*     4.0     3.4    -      -       -      +
    170B  ALA      3.0    16.4    +      -       -      +
    171B  LEU*     3.2    13.2    -      -       -      +
    172B  GLN      3.2     0.2    -      -       -      -
    173B  ALA*     1.3    75.5    -      -       -      +
    175B  VAL*     1.3    57.1    +      -       -      +
    177B  PHE*     3.3     2.8    +      -       -      +
    178B  TYR*     3.0    38.0    +      -       +      -
    204B  THR*     3.8    13.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 175 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    171B  LEU      2.9    19.6    +      -       -      +
    172B  GLN*     2.9    22.6    +      -       -      +
    174B  ALA*     1.3    72.6    -      -       -      +
    176B  ASP*     1.3    69.1    +      -       -      +
    178B  TYR*     3.0     6.6    +      -       -      +
    179B  GLU*     2.9    42.0    +      -       -      +
    201B  LEU*     3.8    19.8    -      -       +      +
    204B  THR*     3.6    13.5    -      -       +      +
    205B  HIS*     4.2    15.5    -      -       +      +
    208B  LEU*     3.5    22.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 176 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172B  GLN*     3.0    34.5    +      -       -      +
    173B  ALA*     3.3    13.1    +      -       -      +
    175B  VAL*     1.3    74.9    -      -       -      +
    177B  PHE*     1.3    61.4    +      -       +      +
    179B  GLU*     2.8    34.8    +      -       -      +
    180B  GLU*     2.9    24.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 177 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119B  GLN*     5.4     6.5    -      -       -      -
    122B  LEU*     5.0     3.1    -      -       +      -
    138B  LEU*     3.9    26.2    -      -       +      +
    141B  LEU*     3.4    40.6    -      -       +      -
    142B  GLY*     3.9    16.2    -      -       -      +
    145B  TYR*     3.4    38.1    -      +       -      -
    173B  ALA*     3.0    29.6    +      -       +      -
    174B  ALA      3.7     6.7    -      -       -      +
    176B  ASP*     1.3    76.9    -      -       +      +
    178B  TYR*     1.3    61.6    +      -       -      +
    180B  GLU*     3.9    17.1    -      -       -      +
    181B  ASN*     3.0    25.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 178 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    139B  TYR*     3.8    29.4    -      +       -      -
    142B  GLY*     3.4    25.9    +      -       -      -
    143B  ASN*     2.7    27.8    +      -       -      -
    146B  HIS*     4.2     7.9    -      -       +      +
    174B  ALA*     3.0    26.9    +      -       +      -
    175B  VAL      3.0     8.9    +      -       -      +
    177B  PHE*     1.3    77.1    -      -       -      +
    179B  GLU*     1.3    55.8    +      -       -      +
    181B  ASN*     3.8     3.9    -      -       +      +
    182B  LEU*     2.9    28.7    +      -       -      +
    197B  ALA*     4.3    18.1    -      -       +      +
    200B  ASN*     3.1    31.3    +      -       +      +
    201B  LEU*     3.5    26.8    -      -       +      +
    204B  THR*     3.5    24.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 179 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175B  VAL*     2.9    28.0    +      -       -      +
    176B  ASP*     2.8    25.1    +      -       -      +
    178B  TYR*     1.3    76.5    -      -       -      +
    180B  GLU*     1.3    59.4    +      -       -      +
    182B  LEU*     3.7     9.3    -      -       +      +
    183B  SER*     2.9    30.7    +      -       -      -
    201B  LEU*     4.2    17.6    -      -       +      +
    205B  HIS*     4.7     6.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 180 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126B  ARG*     3.5    24.3    +      -       -      -
    138B  LEU*     3.8    24.0    -      -       +      +
    176B  ASP*     2.9    24.5    +      -       +      +
    177B  PHE*     3.9    23.5    +      -       -      +
    179B  GLU*     1.3    71.6    -      -       +      +
    181B  ASN*     1.3    68.4    +      -       -      +
    183B  SER*     3.2     8.4    +      -       -      -
    184B  LEU*     3.0    24.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 181 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135B  ALA*     2.8    41.8    +      -       -      +
    138B  LEU*     3.6    15.8    -      -       +      +
    139B  TYR*     3.6    21.1    -      -       -      +
    177B  PHE      3.0    18.0    +      -       -      +
    178B  TYR*     3.8     7.2    -      -       +      +
    180B  GLU*     1.3    78.2    -      -       -      +
    182B  LEU*     1.3    57.7    +      -       -      +
    184B  LEU*     3.2     3.1    +      -       -      +
    185B  VAL*     3.0    44.2    +      -       -      +
    193B  ALA*     4.7     2.4    -      -       -      +
    197B  ALA*     3.6    21.4    -      -       +      +
    380B  GLU*     5.7     0.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 182 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178B  TYR      2.9    21.6    +      -       -      +
    179B  GLU*     3.7    10.3    -      -       +      +
    180B  GLU      3.2     0.6    -      -       -      -
    181B  ASN*     1.3    77.5    -      -       -      +
    183B  SER*     1.3    58.9    +      -       -      +
    185B  VAL*     3.3     6.5    +      -       -      +
    186B  THR*     2.9    37.9    +      -       -      +
    194B  GLN*     3.8    26.2    -      -       +      +
    197B  ALA*     4.4     6.5    -      -       +      -
    198B  PHE*     3.6    50.3    -      -       +      -
    201B  LEU*     4.9    11.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 183 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    179B  GLU      2.9    15.5    +      -       -      -
    180B  GLU*     3.2    11.3    +      -       -      -
    182B  LEU*     1.3    78.1    -      -       -      +
    184B  LEU*     1.3    62.2    +      -       -      +
    186B  THR*     3.1    12.6    -      -       -      +
    187B  ALA*     3.1    26.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 184 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131B  LYS*     4.3    11.0    -      -       +      +
    134B  GLU*     3.3    45.1    -      -       +      +
    135B  ALA*     4.1    15.0    -      -       +      +
    138B  LEU*     4.1    11.4    -      -       +      -
    180B  GLU      3.0    14.8    +      -       -      +
    181B  ASN      3.8     2.9    -      -       -      +
    182B  LEU      3.2     0.2    -      -       -      -
    183B  SER*     1.3    80.8    +      -       -      +
    185B  VAL*     1.3    58.1    +      -       +      +
    186B  THR      3.1     4.2    +      -       -      -
    187B  ALA*     3.7     8.3    +      -       +      +
    188B  LEU*     3.2    35.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 185 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135B  ALA*     3.5    30.7    -      -       +      -
    181B  ASN*     3.0    33.2    +      -       -      +
    182B  LEU*     3.4    11.2    -      -       -      +
    184B  LEU*     1.3    76.8    -      -       -      +
    186B  THR*     1.3    56.7    +      -       -      +
    188B  LEU*     3.8    10.3    -      -       +      -
    189B  GLY      3.6     0.2    +      -       -      -
    190B  ASP*     3.1    25.1    +      -       +      +
    193B  ALA*     4.2    19.3    -      -       +      -
    194B  GLN*     2.8    44.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 186 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182B  LEU*     2.9    26.0    +      -       -      +
    183B  SER*     3.1    13.6    -      -       -      +
    185B  VAL*     1.3    80.0    -      -       -      +
    187B  ALA*     1.3    59.5    +      -       +      +
    188B  LEU      3.2     4.5    +      -       -      -
    189B  GLY*     3.6     8.8    +      -       -      -
    194B  GLN*     3.1    22.6    +      -       -      +
    198B  PHE*     5.9     0.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 187 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216A  ILE*     3.7    11.1    -      -       -      +
    183B  SER      3.1    13.9    +      -       -      +
    184B  LEU*     3.7     9.8    +      -       +      +
    185B  VAL      3.5     0.2    -      -       -      -
    186B  THR*     1.3    77.6    -      -       +      +
    188B  LEU*     1.3    68.5    +      -       +      +
    189B  GLY      3.6     0.9    -      -       -      -
----------------------------------------------------------
 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