Contacts of the strand formed by residues 52 - 63 (chain A) in PDB entry 1G4M


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 ARG 52 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50A  GLU      4.0     9.2    +      -       -      +
     51A  ARG*     1.3    76.1    -      -       -      +
     53A  VAL*     1.3    60.5    +      -       -      +
     54A  TYR*     2.9    32.3    +      -       +      -
     85A  GLN*     3.5    29.7    +      -       +      +
     87A  PHE      3.1    17.5    -      -       -      +
     88A  PRO*     4.0    12.6    -      -       +      -
    149A  PHE      3.9     0.3    -      -       -      +
    150A  CYS*     3.5     2.3    -      -       -      -
    151A  ALA      2.7    36.1    +      -       -      +
    152A  GLU      3.5    18.6    +      -       -      +
    153A  ASN*     4.1     9.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 53 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18A  LEU*     4.0    25.4    -      -       +      -
     41A  VAL*     4.1    24.0    -      -       +      -
     43A  VAL*     3.7    22.7    -      -       +      -
     48A  LEU*     3.7    24.0    -      -       +      -
     52A  ARG*     1.3    73.5    -      -       -      +
     54A  TYR*     1.3    71.7    +      -       -      +
     55A  VAL*     5.0     1.6    -      -       +      -
     85A  GLN*     3.8     1.9    -      -       -      -
     86A  SER*     3.0    25.0    +      -       -      -
     87A  PHE*     2.7    26.0    +      -       +      +
    149A  PHE      3.6     7.6    -      -       -      +
    150A  CYS*     4.5     4.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 54 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52A  ARG*     2.9    45.4    +      -       +      -
     53A  VAL*     1.3    73.7    -      -       -      +
     55A  VAL*     1.3    66.2    +      -       -      +
     56A  THR*     4.3     0.4    -      -       -      +
     83A  ASN*     5.6     0.7    -      -       +      -
     84A  VAL      3.4    16.2    -      -       -      +
     85A  GLN*     3.9    26.5    -      -       +      -
    148A  ALA*     3.2     3.3    -      -       -      +
    149A  PHE*     2.8    61.6    +      +       +      -
    151A  ALA*     3.9    17.9    -      -       +      -
    153A  ASN*     3.5    32.0    +      -       -      -
    154A  LEU*     3.5    33.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 55 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  VAL*     4.6     6.5    -      -       +      -
     53A  VAL*     5.0     1.1    -      -       +      -
     54A  TYR*     1.3    81.3    -      -       -      +
     56A  THR*     1.3    63.5    +      -       -      +
     83A  ASN*     3.3     0.6    -      -       -      -
     84A  VAL*     2.9    36.9    +      -       +      -
     86A  SER*     3.7    23.1    -      -       -      +
    115A  PHE*     3.7    28.5    -      -       +      -
    117A  PHE*     3.3    29.4    -      -       +      -
    146A  VAL*     4.0    12.8    -      -       +      -
    147A  LYS      3.3     9.9    -      -       -      +
    148A  ALA*     4.0    13.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 56 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55A  VAL*     1.3    74.3    +      -       -      +
     57A  LEU*     1.3    62.9    +      -       -      +
     58A  THR*     3.5    20.9    -      -       -      +
     81A  VAL*     3.8     8.5    -      -       +      -
     82A  ALA      3.3     7.2    -      -       -      +
     83A  ASN*     3.1    32.4    +      -       -      +
    117A  PHE*     3.9     2.9    -      -       -      -
    145A  GLU      3.4     3.2    -      -       -      +
    146A  VAL*     3.4     4.5    -      -       -      +
    147A  LYS*     2.8    52.4    +      -       +      +
    149A  PHE*     3.4    21.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 57 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A  VAL*     4.4     2.9    -      -       +      -
     56A  THR*     1.3    72.3    -      -       -      +
     58A  THR*     1.3    67.6    +      -       -      +
     80A  PHE*     3.9    17.5    -      -       +      +
     81A  VAL*     3.4     4.5    -      -       -      -
     82A  ALA*     2.8    30.5    +      -       +      +
    117A  PHE*     3.4    48.0    -      -       +      -
    119A  ILE*     3.7    26.9    -      -       +      -
    144A  TYR*     4.5    10.3    -      -       +      -
    145A  GLU      3.3    14.8    -      -       -      +
    146A  VAL*     3.9    17.7    -      -       +      -
    168A  ILE*     3.9    14.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 58 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56A  THR*     3.5    17.2    -      -       -      +
     57A  LEU*     1.3    80.1    +      -       -      +
     59A  CYS*     1.3    68.1    +      -       -      +
     60A  ALA*     4.2     5.4    -      -       +      +
     78A  ASP*     3.5    29.2    -      -       -      +
     80A  PHE*     3.4     9.9    -      -       -      +
     81A  VAL*     4.3     7.1    -      -       +      +
    143A  ASP      3.5     1.7    -      -       -      +
    144A  TYR*     3.2     7.8    -      -       -      +
    145A  GLU*     2.8    55.6    +      -       -      +
    147A  LYS*     6.1     0.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 59 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58A  THR*     1.3    72.7    -      -       -      +
     60A  ALA*     1.3    56.4    +      -       -      +
     78A  ASP*     3.6     1.2    -      -       -      -
     79A  LEU*     2.7    50.5    +      -       -      -
     80A  PHE*     2.9    27.8    +      -       +      +
    123A  LEU*     4.6     2.5    -      -       +      -
    124A  PRO*     4.3     5.8    -      -       -      -
    142A  VAL*     3.7    21.1    -      -       -      -
    143A  ASP      3.3     4.5    -      -       -      -
    144A  TYR*     3.6    41.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 60 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58A  THR*     3.9     7.3    -      -       +      -
     59A  CYS*     1.3    75.4    -      -       -      +
     61A  PHE*     1.3    62.3    +      -       -      +
     62A  ARG*     4.0     1.1    +      -       +      +
     76A  ARG*     4.0    21.8    -      -       +      +
     77A  LYS      3.3    11.7    -      -       -      +
     78A  ASP*     3.6    18.2    -      -       -      +
     79A  LEU*     4.2     4.5    -      -       -      +
    141A  GLY      3.7     0.9    -      -       -      +
    142A  VAL*     3.4     2.9    -      -       -      +
    143A  ASP*     3.0    35.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 61 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60A  ALA*     1.3    75.0    -      -       -      +
     62A  ARG*     1.3    73.9    +      -       -      +
     63A  TYR*     4.1    13.0    -      +       +      -
     75A  PHE*     4.0    15.0    -      +       -      -
     76A  ARG*     3.3     4.3    -      -       -      +
     77A  LYS*     2.8    38.5    +      -       +      +
     79A  LEU*     4.2    11.7    -      -       +      +
    140A  CYS*     4.1    10.5    -      -       +      -
    141A  GLY      3.3    18.8    -      -       -      -
    142A  VAL*     4.1     7.9    -      -       +      +
    241A  ILE*     4.3     7.6    -      -       +      -
    243A  LEU*     3.6    54.3    -      -       +      -
    316A  GLY*     3.7    32.5    -      -       -      -
    317A  ILE*     4.0    12.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 62 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60A  ALA*     5.1     1.3    -      -       +      +
     61A  PHE*     1.3    80.0    -      -       -      +
     63A  TYR*     1.3    61.8    +      -       -      +
     64A  GLY      5.0     3.4    +      -       -      -
     66A  GLU*     3.4    42.2    +      -       -      +
     74A  THR*     5.1     2.7    -      -       +      -
     75A  PHE      3.2     9.4    -      -       -      +
     76A  ARG*     4.1    26.5    -      -       -      +
    128A  THR*     4.2     6.7    +      -       -      +
    139A  ALA*     4.3     4.0    -      -       -      +
    140A  CYS*     3.0    50.7    +      -       -      +
    141A  GLY*     2.9    31.7    +      -       -      +
    143A  ASP*     3.0    23.4    +      -       -      +
    292A  LYS*     2.8    28.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 63 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61A  PHE*     4.1    15.9    -      +       +      -
     62A  ARG*     1.3    75.8    -      -       -      +
     64A  GLY*     1.3    62.1    +      -       -      +
     73A  LEU      4.7     0.3    -      -       -      +
     74A  THR*     3.7     4.4    -      -       -      +
     75A  PHE*     2.8    38.9    +      -       +      +
    137A  GLY      3.6    14.6    -      -       -      -
    138A  LYS*     3.4    36.1    +      -       -      +
    139A  ALA      3.5     2.9    -      -       -      -
    140A  CYS*     3.5    21.5    -      -       +      -
    241A  ILE*     4.3    10.1    -      -       +      -
    243A  LEU      4.4     3.8    -      -       -      -
    244A  PHE*     3.4    31.8    -      +       +      -
    245A  ASN*     3.1    34.3    +      -       +      +
    249A  TYR*     5.2     1.6    +      -       -      -
    192B  MET*     3.6    22.2    -      -       +      -
----------------------------------------------------------
 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