Contacts of the strand formed by residues 124 - 131 (chain C) in PDB entry 3IML


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 124 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123C  GLN*     1.3    74.8    -      -       -      +
    125C  LEU*     1.3    60.4    +      -       -      -
    126C  MET*     3.8    15.8    -      -       -      +
    275C  ASP*     4.9     3.4    -      -       -      -
    303C  SER*     3.3     5.5    +      -       -      -
    304C  TYR*     2.9    27.9    +      -       -      +
     10D  GLU*     3.2    16.2    -      -       -      -
    171D  GLN*     3.0    13.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 125 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124C  GLY*     1.3    74.8    -      -       -      +
    126C  MET*     1.3    69.2    +      -       -      +
    127C  PHE*     4.6     0.2    -      -       +      -
    262C  GLY*     3.1    46.3    -      -       -      +
    263C  GLY      4.1     0.2    +      -       -      -
    264C  GLY      5.3     0.2    +      -       -      -
    275C  ASP*     4.8     2.3    -      -       -      +
    301C  GLN*     3.3    17.5    -      -       -      +
    302C  VAL      3.4    11.7    -      -       -      +
    303C  SER*     4.6     5.4    -      -       -      +
      8D  THR*     3.0    26.7    -      -       +      +
      9D  SER*     4.2     2.5    -      -       -      -
     10D  GLU*     3.8    40.1    -      -       +      +
    171D  GLN*     5.2     0.9    -      -       -      +
    251D  ILE*     5.6     1.1    -      -       +      -
    256D  GLY*     3.3    25.1    -      -       -      +
    257D  GLY*     4.4     2.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with MET 126 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124C  GLY*     4.1    11.2    -      -       -      -
    125C  LEU*     1.3    81.8    -      -       -      +
    127C  PHE*     1.3    63.9    +      -       -      +
    261C  HIS*     6.3     2.9    -      -       +      -
    262C  GLY*     4.2     6.7    -      -       -      +
    263C  GLY      5.9     0.2    -      -       -      +
    274C  VAL*     3.3    19.5    -      -       +      +
    275C  ASP*     3.1    50.9    -      -       -      +
    278C  ALA*     3.4    23.6    -      -       +      -
    279C  ALA*     4.1    17.7    -      -       +      +
    282C  GLY*     6.1     0.3    -      -       -      -
    300C  ILE      3.9     0.5    -      -       -      +
    301C  GLN*     3.8     1.8    -      -       -      +
    302C  VAL*     3.1    43.1    +      -       +      +
    304C  TYR*     3.8    24.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 127 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125C  LEU*     4.6     0.2    -      -       +      -
    126C  MET*     1.3    76.4    -      -       -      +
    128C  GLY*     1.3    57.6    +      -       -      +
    254C  THR*     6.0     0.9    -      -       -      +
    255C  TYR*     4.0    14.1    -      -       +      -
    259C  ALA*     5.5     1.6    -      -       +      -
    260C  PRO*     3.2    39.0    -      -       +      +
    261C  HIS*     4.1     4.3    -      -       -      -
    262C  GLY*     3.6    20.4    -      -       -      +
    279C  ALA*     4.4    16.2    -      -       -      +
    282C  GLY*     5.0     3.1    -      -       -      -
    299C  LEU*     3.8    22.0    -      -       +      -
    300C  ILE      3.1    15.7    -      -       -      -
    301C  GLN*     3.3    46.0    -      -       +      -
    315C  MET*     5.3     4.3    -      -       -      -
    364C  PHE*     5.3     0.7    -      -       -      -
      7D  PHE*     3.9     6.1    -      +       -      -
    257D  GLY*     3.5    34.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 128 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126C  MET      4.3     0.2    +      -       -      -
    127C  PHE*     1.3    73.7    -      -       -      +
    129C  TYR*     1.3    62.6    +      -       -      +
    255C  TYR*     3.9     3.6    -      -       -      -
    282C  GLY*     3.4    32.1    -      -       -      -
    286C  ALA*     4.0     2.0    -      -       -      -
    299C  LEU*     3.3     7.2    -      -       -      +
    300C  ILE*     2.7    42.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 129 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128C  GLY*     1.3    74.2    -      -       -      -
    130C  ALA*     1.3    85.3    +      -       -      +
    131C  CYS*     4.1    12.3    -      -       +      +
    139C  PRO*     4.0    31.6    -      -       +      +
    255C  TYR*     3.2    33.7    +      +       +      -
    258C  ALA*     4.2    21.1    +      -       +      +
    259C  ALA*     3.7    26.2    -      -       +      -
    282C  GLY      4.1     0.2    +      -       -      -
    283C  ARG*     3.0    20.6    +      -       -      -
    286C  ALA*     3.5     7.2    -      -       -      +
    297C  ARG*     3.4    35.1    +      -       +      -
    298C  ALA      3.3    17.9    -      -       -      -
    299C  LEU*     3.9    22.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 130 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129C  TYR*     1.3    89.5    -      -       -      +
    131C  CYS*     1.3    64.9    +      -       -      +
    137C  LEU*     3.7     9.4    -      -       +      +
    139C  PRO*     5.3     0.4    -      -       -      -
    283C  ARG*     3.5    12.3    -      -       -      +
    286C  ALA*     3.4    33.0    -      -       +      +
    287C  LYS*     3.6     5.8    -      -       -      +
    290C  VAL*     4.1     7.4    -      -       +      -
    297C  ARG*     3.5     0.5    -      -       -      -
    298C  ALA      3.0    28.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 131 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129C  TYR*     4.1    10.1    -      -       +      +
    130C  ALA*     1.3    78.5    -      -       -      +
    132C  ASP*     1.3    59.4    +      -       -      +
    133C  GLU*     3.3    24.0    +      -       +      +
    137C  LEU*     3.1    32.1    +      -       -      +
    138C  MET      3.8     0.9    -      -       -      -
    139C  PRO*     3.5    42.8    -      -       -      -
    290C  VAL*     4.4     7.6    -      -       -      +
    296C  SER      3.5     8.7    -      -       -      -
    297C  ARG*     3.9    20.4    -      -       +      -
----------------------------------------------------------
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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