Contacts of the strand formed by residues 232 - 239 (chain D) in PDB entry 2I62


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 THR 232 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230D  GLY      3.6     3.5    +      -       -      -
    231D  TYR*     1.3    73.4    -      -       -      +
    233D  ILE*     1.3    68.5    +      -       -      +
    234D  GLU*     3.2    12.3    +      -       +      +
    258D  GLY*     4.2     0.4    -      -       -      -
    259D  ARG*     2.8    46.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 233 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    241C  GLN*     5.7     0.9    -      -       -      +
    223D  ARG*     3.7    44.6    -      -       +      +
    226D  VAL*     3.8    25.6    -      -       +      -
    227D  GLU*     3.7    23.2    +      -       +      +
    231D  TYR      3.7     1.8    +      -       -      -
    232D  THR*     1.3    73.7    -      -       -      +
    234D  GLU*     1.3    60.7    +      -       -      +
    235D  GLN      3.4    29.2    -      -       -      +
    236D  PHE*     4.0    21.1    -      -       +      -
    256D  LEU*     4.9     4.3    -      -       +      -
    257D  VAL      3.6     7.2    -      -       -      +
    258D  GLY*     4.3     1.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 234 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54D  ALA*     4.7     7.1    -      -       -      +
     55D  VAL*     5.2     0.3    -      -       -      +
    193D  PHE*     3.3    22.3    -      -       -      -
    232D  THR*     3.2    17.5    +      -       +      +
    233D  ILE*     1.3    75.2    -      -       -      +
    235D  GLN*     1.3    74.5    +      -       +      +
    257D  VAL*     2.8    17.2    +      -       +      +
    259D  ARG*     2.7    47.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 235 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48D  LYS*     4.7     6.2    +      -       -      +
     49D  ILE*     3.7    27.5    +      -       +      +
     53D  GLY*     5.8     3.2    -      -       -      -
     54D  ALA*     5.5     6.1    -      -       -      +
     55D  VAL*     4.4    10.3    -      -       -      +
    233D  ILE*     3.4     9.0    -      -       -      +
    234D  GLU*     1.3    91.0    +      -       +      +
    236D  PHE*     1.3    62.4    +      -       -      +
    237D  GLU*     5.5     6.7    -      -       +      +
    255D  SER      4.6     0.2    -      -       -      -
    256D  LEU*     3.2     4.2    -      -       -      -
    257D  VAL*     2.9    54.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 236 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238C  VAL      4.5     3.6    -      -       -      +
    240C  SER*     3.4    33.7    +      -       -      +
    219D  TRP*     3.5    58.6    -      +       +      -
    222D  VAL*     4.3     1.8    -      -       +      -
    223D  ARG*     4.1    17.3    -      -       +      -
    233D  ILE*     4.0    21.3    -      -       +      -
    235D  GLN*     1.3    75.7    -      -       -      +
    237D  GLU*     1.3    81.4    +      -       -      +
    238D  VAL*     4.1     7.6    -      -       +      -
    254D  PHE*     3.9    25.1    -      +       +      -
    255D  SER      3.4     4.7    -      -       -      -
    256D  LEU*     3.7    33.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 237 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41C  HIS*     5.5     7.4    +      -       -      -
    237C  GLU*     3.5    21.8    -      -       -      +
    238C  VAL      4.0    11.9    -      -       -      +
     45D  ASN*     3.6    25.1    -      -       -      +
    235D  GLN*     5.5     5.6    -      -       +      +
    236D  PHE*     1.3    87.5    +      -       -      +
    238D  VAL*     1.3    65.3    +      -       -      +
    239D  ILE      4.1     0.2    -      -       -      -
    254D  PHE*     3.2     7.8    -      -       -      +
    255D  SER*     2.9    36.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 238 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219C  TRP*     3.9    34.1    -      -       +      -
    236C  PHE*     4.6     6.6    -      -       +      +
    237C  GLU*     4.1    14.4    -      -       -      +
    238C  VAL*     3.7    42.6    +      -       +      +
     45D  ASN*     5.3     0.5    +      -       -      -
    200D  LEU*     4.0     6.1    -      -       +      -
    219D  TRP*     4.1    17.9    -      -       +      -
    236D  PHE*     4.1    18.8    -      -       +      -
    237D  GLU*     1.3    80.1    +      -       -      +
    239D  ILE*     1.3    68.5    +      -       -      +
    240D  SER*     3.9     4.4    +      -       -      +
    253D  LEU      3.5     9.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 239 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38D  ILE*     5.1     3.6    -      -       +      +
     41D  HIS*     3.8    26.2    -      -       +      +
     42D  LEU*     3.5    44.4    -      -       +      +
     45D  ASN*     3.6    29.4    -      -       +      +
    238D  VAL*     1.3    74.5    -      -       -      +
    240D  SER*     1.3    59.2    +      -       -      +
    241D  GLN*     3.3    19.5    -      -       +      +
    252D  GLY*     2.9     8.0    -      -       -      -
    253D  LEU*     2.7    61.1    +      -       +      +
    254D  PHE*     5.0     7.0    -      -       -      -
    255D  SER*     5.2     0.7    -      -       -      +
----------------------------------------------------------
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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