Contacts of the helix formed by residues 169 - 187 (chain B) in PDB entry 4BLV


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 MET 169 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168B  GLU*     1.3    92.1    -      -       +      +
    170B  LYS*     1.3    67.7    +      -       +      +
    171B  THR*     3.2     5.8    -      -       +      +
    172B  ASP*     3.0    22.2    +      -       -      +
    173B  TYR*     3.7    10.6    -      -       -      -
   1282B  PEG      3.3    33.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 170 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    169B  MET*     1.3    74.7    -      -       +      +
    171B  THR*     1.3    65.2    +      -       +      +
    172B  ASP      3.2     0.9    +      -       -      -
    173B  TYR*     3.2    18.5    +      -       -      +
    174B  GLN*     3.7    11.7    -      -       -      +
    200B  LEU*     6.3     0.4    -      -       -      +
    203B  GLN*     3.0    44.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 171 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    169B  MET*     4.3     2.8    -      -       +      +
    170B  LYS*     1.3    78.7    -      -       +      +
    172B  ASP*     1.3    64.2    +      -       -      +
    173B  TYR      3.3     0.2    -      -       -      -
    174B  GLN*     3.2    23.9    +      -       -      +
    175B  ALA*     3.0    23.2    +      -       -      +
   1282B  PEG      3.6    26.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 172 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    166B  PRO*     3.3    17.6    -      -       -      +
    167B  TYR*     3.7     7.6    -      -       -      -
    168B  GLU*     2.9    27.9    +      -       -      +
    169B  MET      3.0    21.9    +      -       -      +
    171B  THR*     1.3    78.2    +      -       -      +
    173B  TYR*     1.3    60.2    +      -       -      +
    174B  GLN      3.3     0.7    +      -       -      -
    175B  ALA*     3.4     0.7    +      -       -      -
    176B  VAL*     3.4    12.7    +      -       -      +
   1282B  PEG      3.1    41.1    +      -       -      +
   1286B  EDO      3.0    40.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 173 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167B  TYR*     3.4    59.4    +      +       +      +
    168B  GLU      5.6     0.2    -      -       -      -
    169B  MET      3.7    14.8    -      -       -      -
    170B  LYS      3.2     9.1    +      -       -      +
    172B  ASP*     1.3    77.6    -      -       +      +
    174B  GLN*     1.3    60.9    +      -       +      +
    176B  VAL*     3.8     7.1    -      -       -      +
    177B  VAL*     3.8    18.2    -      -       -      +
    197B  PRO*     4.4    11.8    +      -       -      +
    199B  VAL*     5.1    11.3    +      -       -      +
    200B  LEU      5.5     1.2    +      -       -      -
    203B  GLN*     3.6    49.6    -      -       +      +
    204B  ILE*     3.6    22.9    -      -       +      +
    207B  MET*     3.8    21.7    -      -       +      +
    210B  ASP*     5.7     0.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 174 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170B  LYS*     3.7    13.5    -      -       -      +
    171B  THR*     3.2    29.4    +      -       -      +
    172B  ASP      3.2     0.6    -      -       -      -
    173B  TYR*     1.3    77.9    -      -       +      +
    175B  ALA*     1.3    65.9    +      -       -      +
    176B  VAL      3.1     1.6    -      -       -      -
    177B  VAL*     3.1     8.3    +      -       -      +
    178B  SER*     3.1    27.8    +      -       -      +
    206B  ARG*     6.0     6.1    -      -       -      +
    210B  ASP*     5.3    11.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 175 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145B  PHE*     3.9    13.5    -      -       +      -
    171B  THR      3.0    15.8    +      -       -      +
    172B  ASP      3.4     4.2    +      -       -      +
    174B  GLN*     1.3    76.0    -      -       -      +
    176B  VAL*     1.3    57.0    -      -       -      +
    178B  SER*     3.8     6.1    -      -       -      -
    179B  GLY*     2.8    28.2    +      -       -      -
   1286B  EDO      3.7    24.9    -      -       -      +
   1293B  EDO      4.2     2.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 176 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145B  PHE*     3.9    13.1    -      -       +      -
    163B  ILE*     5.3     1.1    -      -       +      -
    165B  PRO*     3.7    29.6    -      -       +      -
    167B  TYR*     3.8    12.1    -      -       +      +
    172B  ASP      3.4    12.9    +      -       -      +
    173B  TYR      3.8     8.5    -      -       -      +
    174B  GLN      3.1     0.8    -      -       -      -
    175B  ALA*     1.3    77.5    -      -       -      +
    177B  VAL*     1.3    59.4    +      -       +      +
    179B  GLY*     3.3     1.2    +      -       -      -
    180B  ILE*     3.0    36.3    +      -       +      +
    194B  LEU*     3.5    37.0    -      -       +      -
    207B  MET*     4.3     8.7    -      -       -      -
   1286B  EDO      3.8     5.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 177 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    173B  TYR      3.8    15.3    -      -       -      +
    174B  GLN*     3.1     8.3    +      -       -      +
    176B  VAL*     1.3    78.6    -      -       +      +
    178B  SER*     1.3    64.2    +      -       -      +
    180B  ILE*     3.4     5.9    +      -       -      +
    181B  ALA*     3.0    23.4    +      -       -      +
    207B  MET*     3.8    30.7    -      -       +      +
    210B  ASP*     3.8    35.4    -      -       +      +
    211B  LEU*     3.9    14.1    -      -       +      +
    214B  THR*     3.8    16.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 178 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174B  GLN*     3.1    18.9    +      -       -      +
    175B  ALA*     3.9     5.8    -      -       -      -
    177B  VAL*     1.3    77.4    -      -       -      +
    179B  GLY*     1.3    63.5    +      -       -      +
    181B  ALA*     3.4     6.6    +      -       -      +
    182B  GLU*     3.1    24.2    +      -       -      +
   1293B  EDO      3.0    14.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 179 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145B  PHE*     4.1     4.7    -      -       -      -
    148B  LEU*     3.2    21.2    -      -       -      +
    175B  ALA      2.8    16.7    +      -       -      -
    176B  VAL      3.7     1.3    -      -       -      -
    177B  VAL      3.2     0.2    -      -       -      -
    178B  SER*     1.3    74.5    -      -       -      +
    180B  ILE*     1.3    63.0    +      -       -      +
    182B  GLU*     3.2     4.2    +      -       -      +
    183B  GLY      3.0    18.7    +      -       -      -
   1293B  EDO      2.9    22.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 180 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145B  PHE*     5.4     0.2    -      -       -      -
    148B  LEU*     4.2     4.0    -      -       -      +
    163B  ILE*     3.7    23.1    -      -       +      -
    176B  VAL*     3.0    34.5    +      -       +      +
    177B  VAL*     3.8     4.7    -      -       -      +
    179B  GLY*     1.3    74.2    -      -       -      +
    181B  ALA*     1.3    53.8    +      -       -      +
    183B  GLY*     3.2     1.8    +      -       -      -
    184B  TYR*     2.8    34.4    +      -       +      +
    192B  TYR*     4.8    13.7    -      -       +      -
    194B  LEU*     4.1    23.8    -      -       +      -
    211B  LEU*     4.3    20.0    -      -       +      -
    216B  ILE*     4.1    12.3    -      -       +      -
    241B  ILE*     5.9     0.9    -      -       +      -
    243B  ILE*     3.6    30.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 181 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177B  VAL      3.0    17.1    +      -       -      +
    178B  SER*     3.6     7.6    -      -       -      +
    179B  GLY      3.2     0.2    -      -       -      -
    180B  ILE*     1.3    79.9    -      -       -      +
    182B  GLU*     1.3    62.4    +      -       +      +
    184B  TYR*     3.9     5.2    -      -       -      +
    185B  LYS*     3.0    25.2    +      -       -      +
    214B  THR*     4.4     6.3    -      -       +      -
    216B  ILE*     4.7     3.8    -      -       -      -
   1294B  EDO      3.5    41.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 182 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148B  LEU*     4.4     1.3    -      -       +      -
    149B  LYS*     3.6    24.0    +      -       +      -
    178B  SER*     3.1    20.6    +      -       -      +
    179B  GLY      3.2     2.9    +      -       -      +
    181B  ALA*     1.3    77.5    -      -       +      +
    183B  GLY*     1.3    65.4    -      -       -      +
    185B  LYS*     3.4    20.7    +      -       -      +
    186B  ARG*     2.9    52.1    +      -       -      +
   1293B  EDO      3.3    32.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 183 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148B  LEU*     3.7    10.7    +      -       -      +
    152B  LEU*     3.6    22.8    -      -       -      +
    179B  GLY      3.0    14.0    +      -       -      -
    180B  ILE      3.6     2.9    -      -       -      -
    182B  GLU*     1.3    77.1    -      -       -      +
    184B  TYR*     1.3    56.3    +      -       -      +
    186B  ARG*     2.9     8.0    +      -       -      +
    187B  PHE      2.9    23.6    +      -       -      -
    192B  TYR*     3.1    14.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 184 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    180B  ILE*     2.8    20.8    +      -       +      +
    181B  ALA*     3.9     3.6    -      -       -      +
    183B  GLY*     1.3    68.2    -      -       -      +
    185B  LYS*     1.3    68.7    +      -       -      +
    186B  ARG      3.2     0.3    +      -       -      -
    187B  PHE      3.9     0.4    -      -       -      -
    188B  ALA*     3.1    67.8    +      -       +      +
    192B  TYR*     3.5    22.2    +      +       +      -
    216B  ILE*     3.7    41.5    -      -       +      -
    217B  ARG*     4.5    13.2    +      -       -      +
    243B  ILE*     4.0    15.3    -      -       +      -
    244B  ASN*     3.9    12.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 185 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    181B  ALA      3.0    16.0    +      -       -      +
    182B  GLU*     3.4    23.5    +      -       -      +
    184B  TYR*     1.3    80.2    -      -       -      +
    186B  ARG*     1.3    89.3    +      -       +      +
    188B  ALA*     5.1     1.9    +      -       -      +
   1294B  EDO      6.0     2.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 186 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148B  LEU      3.5    20.4    -      -       -      -
    149B  LYS*     3.5    45.1    +      -       -      +
    152B  LEU*     3.7    20.9    -      -       +      +
    153B  PRO*     3.4    23.9    -      -       +      +
    182B  GLU*     2.9    45.8    +      -       -      +
    183B  GLY      2.9     7.4    +      -       -      +
    185B  LYS*     1.3    96.1    -      -       +      +
    187B  PHE*     1.3    58.6    +      -       -      +
    188B  ALA      4.1     0.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 187 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    152B  LEU*     4.0    14.1    -      -       +      -
    153B  PRO*     3.6    23.6    -      -       +      -
    154B  PRO*     3.6    22.7    -      -       +      -
    157B  ARG*     3.6    37.7    -      -       +      -
    158B  ARG*     3.7     7.2    -      -       -      -
    159B  GLY*     4.1    10.1    -      -       -      -
    161B  ILE*     4.1     9.2    -      -       +      -
    183B  GLY      2.9     5.0    +      -       -      +
    184B  TYR      3.4     2.7    -      -       -      +
    186B  ARG*     1.3    80.1    -      -       -      +
    188B  ALA*     1.3    65.0    +      -       -      +
    189B  THR*     3.2    21.5    -      -       -      -
    190B  GLY*     3.3    33.3    +      -       -      -
    192B  TYR*     2.7    35.1    +      -       -      +
----------------------------------------------------------
 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