Contacts of the strand formed by residues 247 - 252 (chain C) in PDB entry 2IGT


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 247 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122C  TRP*     3.9    17.3    -      -       -      -
    206C  ASP      3.5     4.0    +      -       -      +
    207C  ILE*     3.4     6.0    -      -       -      +
    208C  ILE      3.1    23.2    +      -       -      -
    241C  LEU*     4.0     6.3    -      -       -      +
    245C  ALA*     3.7     2.0    -      -       -      +
    246C  LEU*     1.3    81.8    -      -       -      +
    248C  LEU*     1.3    61.1    +      -       -      +
    249C  VAL      4.2     0.4    -      -       -      -
    306C  TRP*     3.1    20.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 248 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208C  ILE*     3.4    35.0    -      -       +      +
    210C  THR*     4.8     2.9    -      -       +      -
    234C  LEU*     4.4    16.4    -      -       +      +
    237C  CYS*     3.9    26.7    -      -       +      -
    238C  ARG      4.7     0.4    -      -       -      +
    241C  LEU*     4.5    17.7    -      -       +      -
    247C  GLY*     1.3    73.9    -      -       -      +
    249C  VAL*     1.3    66.3    +      -       -      +
    250C  LEU      4.2     0.2    -      -       -      -
    266C  MSE      3.8    29.9    -      -       +      +
    269C  THR*     5.1     0.7    -      -       +      -
    270C  MSE      4.1    17.0    -      -       -      -
    304C  SER      3.8     1.4    -      -       -      +
    305C  ARG*     3.3     3.1    -      -       -      -
    306C  TRP*     2.9    41.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 249 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119C  HIS*     4.2    28.9    -      -       +      +
    122C  TRP*     3.7    33.0    -      -       +      -
    208C  ILE      2.9     9.5    +      -       -      +
    209C  LEU*     3.4    19.8    -      -       +      -
    210C  THR*     2.8    35.9    +      -       -      +
    248C  LEU*     1.3    77.2    -      -       -      +
    250C  LEU*     1.3    59.3    +      -       -      +
    251C  THR*     4.3    14.4    -      -       +      -
    266C  MSE      4.8     0.4    -      -       -      -
    304C  SER      3.6     5.2    -      -       -      +
    305C  ARG*     3.8    22.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 250 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210C  THR*     3.4    13.2    -      -       +      +
    212C  PRO*     3.7    33.0    -      -       +      -
    230C  LEU*     4.0    19.3    -      -       +      -
    234C  LEU*     4.2    16.2    -      -       +      -
    249C  VAL*     1.3    74.7    -      -       -      +
    251C  THR*     1.3    70.9    +      -       -      +
    252C  ALA*     4.9     3.1    -      -       +      -
    262C  MSE      3.9    39.5    -      -       +      +
    265C  LEU*     5.5     0.2    -      -       +      -
    266C  MSE      3.7    14.5    -      -       +      +
    303C  PHE*     3.1     8.4    -      -       -      +
    304C  SER*     2.8    42.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 251 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116C  GLN*     3.6    18.6    +      -       -      +
    119C  HIS*     3.6    35.7    -      -       +      +
    210C  THR      2.9     6.6    +      -       -      +
    211C  ASP*     2.7    42.3    +      -       -      +
    212C  PRO*     3.4    21.1    -      -       -      +
    249C  VAL*     4.3     9.9    -      -       +      -
    250C  LEU*     1.3    79.3    -      -       -      +
    252C  ALA*     1.3    62.6    +      -       -      +
    253C  TYR*     5.0     0.7    -      -       -      -
    302C  LEU      3.4     9.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 252 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    211C  ASP*     4.3     0.4    +      -       -      -
    212C  PRO      4.4     4.0    -      -       -      -
    226C  LEU*     4.3    17.7    -      -       +      -
    250C  LEU*     4.9     4.7    -      -       +      -
    251C  THR*     1.3    76.7    -      -       -      +
    253C  TYR*     1.3    64.2    +      -       -      +
    254C  SER      4.4     0.3    +      -       -      -
    255C  ILE*     5.1     5.8    -      -       +      +
    262C  MSE      4.3    24.0    -      -       +      -
    301C  SER*     3.5     2.3    -      -       -      -
    302C  LEU*     2.9    52.7    +      -       +      +
----------------------------------------------------------
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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