Contacts of the helix formed by residues 82 - 95 (chain A) in PDB entry 3LRB


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 GLY 82 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74A  TYR*     5.0     0.2    -      -       -      -
     77A  ALA      3.4     0.7    -      -       -      +
     78A  ARG*     2.8    42.2    +      -       -      +
     81A  PHE*     1.3    74.9    +      -       -      -
     83A  PRO*     1.4    81.1    -      -       -      +
     86A  GLY*     2.8    19.9    +      -       -      -
     87A  TYR*     5.2     0.3    -      -       -      -
    432B  HIS*     4.5     2.0    +      -       -      +
    433B  LYS*     5.7     0.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 83 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78A  ARG*     4.9    12.6    -      -       -      +
     81A  PHE*     3.1    22.2    -      -       +      -
     82A  GLY*     1.4    83.2    -      -       -      +
     84A  PHE*     1.3    59.7    +      -       -      +
     85A  LEU      3.0     1.3    -      -       -      -
     86A  GLY      2.4    31.9    +      -       -      -
     87A  TYR*     3.0    32.7    +      -       +      +
    430A  ARG*     3.1    28.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 84 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81A  PHE*     3.5    13.4    -      -       +      -
     83A  PRO*     1.3    79.4    -      -       -      +
     85A  LEU*     1.3    65.9    +      -       +      +
     87A  TYR*     3.5     3.1    +      -       -      +
     88A  GLN*     3.0    57.7    +      -       +      +
    421A  THR*     2.6    51.6    -      -       +      -
    424A  TYR*     4.4    20.8    +      +       +      -
    430A  ARG*     3.5    24.0    -      -       -      +
     80B  CYS*     3.9    14.4    -      -       -      -
     85B  LEU*     3.2    30.1    -      -       +      -
    367B  TYR*     4.1    15.7    -      +       -      -
    370B  ALA*     6.0     0.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 85 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77A  ALA*     4.1     7.1    -      -       +      +
     80A  CYS*     3.2    28.9    -      -       +      +
     81A  PHE*     3.4    22.2    -      -       +      -
     83A  PRO      2.6     4.9    +      -       -      -
     84A  PHE*     1.3    93.7    -      -       +      +
     86A  GLY*     1.3    57.0    +      -       -      +
     88A  GLN*     3.7    10.1    +      -       -      +
     89A  THR*     2.9    27.9    +      -       -      -
    367A  TYR*     3.2    39.5    -      -       +      +
     81B  PHE*     3.9     5.6    -      -       +      -
     84B  PHE*     3.3    29.8    -      -       +      -
     85B  LEU*     4.2     9.9    -      -       +      -
    367B  TYR*     5.6     0.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 86 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74A  TYR*     2.9    24.0    -      -       -      -
     77A  ALA*     3.8     8.2    +      -       -      -
     82A  GLY      2.8    16.8    +      -       -      -
     83A  PRO      2.4    13.3    +      -       -      -
     85A  LEU*     1.3    68.5    -      -       -      +
     87A  TYR*     1.3    64.5    +      -       -      -
     88A  GLN      3.1     1.6    -      -       -      -
     89A  THR*     2.7    28.9    -      -       -      +
     90A  ASN*     2.9     5.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 87 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74A  TYR*     2.7    31.9    -      +       -      -
     78A  ARG*     3.3    24.8    +      -       -      -
     82A  GLY      5.2     0.4    -      -       -      -
     83A  PRO*     3.0    31.0    +      -       +      +
     84A  PHE      4.2     0.7    -      -       -      +
     86A  GLY*     1.3    75.5    -      -       -      +
     88A  GLN*     1.3    56.1    +      -       -      +
     90A  ASN*     3.8     5.0    +      -       -      +
     91A  VAL*     3.1    29.3    +      -       +      +
    304A  ALA*     4.8     0.2    -      -       +      -
    308A  GLY*     3.5     8.9    -      -       -      -
    309A  LEU*     3.4    46.4    -      -       +      +
    310A  PHE*     5.9     1.8    -      -       -      +
    424A  TYR*     2.7    38.9    +      +       +      +
    427A  ASN*     5.3     2.0    -      -       -      +
    430A  ARG*     3.2    28.0    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 88 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84A  PHE*     3.0    52.0    +      -       +      +
     85A  LEU*     3.8     4.0    -      -       -      +
     87A  TYR*     1.3    75.4    -      -       -      +
     89A  THR*     1.3    64.9    +      -       -      +
     90A  ASN      3.1     1.8    -      -       -      -
     91A  VAL*     4.5     0.2    -      -       -      -
     92A  LEU*     3.1    24.0    +      -       +      +
    363A  VAL*     4.3     2.3    -      -       +      +
    367A  TYR*     3.2    32.8    +      -       +      -
    417A  LEU*     4.1    34.2    +      -       +      +
    420A  ILE*     3.9    23.0    -      -       +      +
    421A  THR*     3.7     6.3    +      -       -      -
    424A  TYR*     3.4     4.0    +      -       +      +
    367B  TYR*     5.3     2.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 89 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73A  SER      3.4    17.8    +      -       -      +
     74A  TYR*     3.4    17.7    -      -       +      -
     77A  ALA*     3.4    15.2    -      -       +      +
     85A  LEU      2.9    15.7    +      -       -      -
     86A  GLY*     2.7    30.7    -      -       -      +
     88A  GLN*     1.3    78.7    -      -       -      +
     90A  ASN*     1.3    57.9    +      -       -      +
     92A  LEU*     3.9     4.1    -      -       -      +
     93A  TYR*     3.2    25.6    +      -       -      +
    363A  VAL*     5.1     0.4    -      -       -      -
    364A  PRO*     3.6    27.8    -      -       -      +
    367A  TYR*     4.0    12.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 90 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74A  TYR*     4.0    13.2    -      -       +      -
     86A  GLY      2.9    13.0    +      -       -      +
     87A  TYR*     3.8     6.0    +      -       -      +
     88A  GLN      3.1     0.6    -      -       -      -
     89A  THR*     1.3    79.2    -      -       -      +
     91A  VAL*     1.3    67.3    +      -       -      +
     92A  LEU      3.0     1.1    -      -       -      -
     93A  TYR*     2.5    27.5    +      -       -      -
     94A  TRP*     2.9    14.0    +      -       -      +
    300A  THR*     2.1    39.7    -      -       +      +
    301A  ALA*     3.5     0.7    -      -       -      +
    304A  ALA*     3.8    16.3    -      -       +      +
    309A  LEU      5.3     0.6    +      -       -      -
    310A  PHE*     3.2    36.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 91 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87A  TYR*     3.1    17.4    +      -       +      +
     88A  GLN      4.2     2.2    -      -       -      +
     90A  ASN*     1.3    82.4    -      -       -      +
     92A  LEU*     1.3    53.6    +      -       -      +
     94A  TRP*     4.1     2.6    -      -       +      +
     95A  LEU*     2.6    59.2    +      -       +      +
    310A  PHE*     4.2    33.0    -      -       +      +
    420A  ILE*     3.7    30.7    -      -       +      -
    423A  MET*     5.1    13.5    -      -       +      -
    424A  TYR*     4.2    10.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 92 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88A  GLN      3.1    15.1    +      -       -      +
     89A  THR      4.1     2.2    -      -       -      +
     90A  ASN      2.9     1.0    +      -       -      -
     91A  VAL*     1.3    81.4    -      -       -      +
     93A  TYR*     1.3    60.6    +      -       -      +
     95A  LEU*     4.1     4.9    -      -       -      -
     96A  ALA*     3.5     3.3    -      -       -      +
    360A  PHE*     2.9    76.9    -      -       +      +
    363A  VAL*     3.4    18.2    -      -       +      -
    364A  PRO*     3.4    21.1    -      -       +      -
    413A  SER*     5.1     0.7    -      -       -      +
    416A  THR*     4.6     0.9    -      -       +      -
    417A  LEU*     3.3    33.2    -      -       +      -
    420A  ILE*     3.8    12.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 93 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73A  SER*     5.1     7.6    -      -       -      -
     89A  THR      3.2    14.4    +      -       -      +
     90A  ASN      2.5    15.0    +      -       -      +
     92A  LEU*     1.3    69.6    -      -       -      +
     94A  TRP*     1.3    70.7    +      -       -      +
     95A  LEU      2.9     0.7    -      -       -      -
     96A  ALA*     2.7    21.2    +      -       -      +
     97A  CYS*     3.1    23.9    +      -       -      -
    208A  GLU*     2.6    51.1    +      -       -      +
    212A  VAL*     3.8    15.5    -      -       +      +
    293A  TRP*     4.2     7.3    -      +       -      -
    296A  LEU*     4.1    12.5    -      -       +      +
    300A  THR*     3.1    44.4    -      -       +      -
    361A  THR*     4.4    15.7    -      -       +      +
    364A  PRO*     4.0    17.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 94 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90A  ASN*     2.9    15.1    +      -       -      +
     91A  VAL*     4.2     4.5    -      -       +      -
     93A  TYR*     1.3    77.0    -      -       -      +
     95A  LEU*     1.3    73.1    -      -       +      +
     96A  ALA      2.4    15.9    +      -       -      -
     97A  CYS*     2.8    20.3    +      -       -      +
     98A  TRP*     3.0    51.8    +      +       +      +
    297A  ALA*     2.9    32.8    +      -       +      +
    300A  THR      3.8    13.2    +      -       -      +
    301A  ALA*     3.5    11.0    -      -       +      -
    302A  LYS*     3.1    18.0    -      -       -      +
    310A  PHE*     4.1    23.8    -      +       +      -
    314A  PHE*     4.3    17.3    -      +       -      -
    329A  ILE*     5.9     3.8    -      -       +      -
    330A  VAL*     4.1    18.3    -      -       +      +
    333A  LEU*     5.2     9.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 95 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91A  VAL*     2.6    40.7    +      -       +      +
     92A  LEU*     4.2     6.3    -      -       -      +
     93A  TYR      2.9     0.6    +      -       -      -
     94A  TRP*     1.3    84.4    -      -       +      +
     96A  ALA*     1.3    60.4    +      -       -      +
     98A  TRP*     3.8    30.1    -      -       +      -
     99A  ILE*     3.7    30.7    -      -       +      +
    360A  PHE*     3.9    18.4    -      -       +      -
    416A  THR*     5.7     5.4    -      -       +      -
    420A  ILE*     5.7     2.2    -      -       +      -
    423A  MET*     6.3     2.0    -      -       +      -
----------------------------------------------------------
 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