Contacts of the strand formed by residues 15 - 26 (chain A) in PDB entry 2OG9


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 ILE 15 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14A  ARG*     1.3    71.6    -      -       -      +
     16A  THR*     1.3    64.3    +      -       -      +
     17A  TRP      4.1     1.8    -      -       -      +
     18A  VAL*     3.9    27.6    -      -       +      -
     54A  ILE*     3.9    18.2    -      -       +      -
     55A  GLU      3.8     5.2    -      -       -      +
     56A  THR*     4.2     2.0    -      -       +      -
     87A  LEU*     3.3    37.5    -      -       +      +
     88A  ILE*     3.6     3.1    -      -       +      +
     89A  GLY*     2.6    29.3    +      -       -      -
     90A  GLU      2.8    19.0    +      -       -      +
     92A  PRO*     3.9    16.4    -      -       +      -
     98A  LEU*     4.1    17.5    -      -       +      -
    126A  LEU*     4.1    23.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 16 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14A  ARG*     3.1    34.7    +      -       -      +
     15A  ILE*     1.3    78.4    -      -       -      +
     17A  TRP*     1.3    61.1    +      -       -      +
     55A  GLU      3.0     5.1    +      -       -      -
     56A  THR      3.5    16.3    +      -       -      -
     57A  ALA*     3.6    21.6    -      -       +      +
     88A  ILE*     3.6    12.4    -      -       +      +
    382A  GLY*     3.2     8.3    -      -       -      -
    383A  THR*     3.0    37.1    +      -       -      -
    385A  PRO*     3.9     9.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 17 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15A  ILE*     3.8     1.7    -      -       -      +
     16A  THR*     1.3    79.9    -      -       -      +
     18A  VAL*     1.3    72.2    +      -       -      +
     19A  ARG*     3.4    42.0    -      -       +      -
     53A  GLU*     4.0    25.6    -      -       +      -
     54A  ILE*     3.6     0.5    -      -       -      -
     55A  GLU*     3.1    67.5    +      -       +      +
     88A  ILE*     3.9     0.6    -      -       -      +
    380A  GLN*     3.1    27.9    +      -       -      +
    381A  VAL      3.4    16.8    -      -       -      -
    382A  GLY      3.8     8.7    -      -       -      -
    383A  THR      3.8     0.2    -      -       -      +
    384A  ARG*     3.6    67.1    -      -       +      +
    385A  PRO*     4.3     5.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 18 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15A  ILE*     3.9    19.7    -      -       +      -
     17A  TRP*     1.3    83.8    -      -       -      +
     19A  ARG*     1.3    67.4    +      -       -      +
     20A  ILE*     4.7     0.4    -      -       +      -
     53A  GLU      3.2    11.2    -      -       -      +
     54A  ILE*     4.4     5.4    -      -       +      -
     84A  ALA*     4.4    11.4    -      -       +      +
     87A  LEU*     4.3    16.8    -      -       +      -
     88A  ILE*     4.0    10.1    -      -       +      -
    122A  PHE*     3.6    33.7    -      -       +      -
    380A  GLN*     3.1     5.0    -      -       -      +
    381A  VAL*     3.0    44.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 19 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17A  TRP*     3.4    35.2    -      -       +      -
     18A  VAL*     1.3    76.4    -      -       -      +
     20A  ILE*     1.3    66.6    +      -       -      +
     21A  SER*     2.7    28.1    +      -       -      -
     51A  PHE      3.7     0.3    -      -       -      +
     52A  ALA*     3.4     3.3    -      -       -      -
     53A  GLU*     2.6    75.4    +      -       +      +
    367A  LEU*     5.1     4.8    -      -       -      +
    372A  LYS*     4.2     8.9    -      -       -      +
    375A  THR*     4.9     3.6    +      -       -      +
    378A  GLU*     2.8    42.9    +      -       -      +
    379A  ALA      3.4    11.2    -      -       -      +
    380A  GLN*     4.1    12.6    -      -       +      +
    384A  ARG*     5.9     0.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 20 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18A  VAL*     4.7     2.7    -      -       +      +
     19A  ARG*     1.3    77.1    -      -       -      +
     21A  SER*     1.3    63.5    +      -       -      +
     50A  LEU*     4.3     6.3    -      -       +      -
     51A  PHE      3.1    10.1    -      -       -      +
     52A  ALA*     4.4     3.4    -      -       +      -
     77A  PHE*     3.5    23.6    -      -       +      +
     80A  ALA*     3.7     7.4    -      -       +      +
     81A  ARG*     3.2    46.9    -      -       +      +
     84A  ALA*     5.2     4.3    -      -       +      -
    121A  ALA*     6.3     0.2    -      -       +      -
    122A  PHE*     3.6    36.1    -      -       +      -
    378A  GLU*     3.1     5.9    -      -       -      +
    379A  ALA*     2.9    42.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 21 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19A  ARG*     2.7    39.0    +      -       -      -
     20A  ILE*     1.3    74.7    -      -       -      +
     22A  SER*     1.3    61.1    +      -       -      +
     23A  CYS*     3.7     0.7    -      -       -      -
     49A  ILE      3.4     1.2    -      -       -      +
     50A  LEU*     3.4     8.6    -      -       -      +
     51A  PHE*     2.8    48.8    +      -       -      +
     53A  GLU*     4.2     1.7    +      -       -      -
     77A  PHE*     4.4     0.4    -      -       -      -
    367A  LEU*     6.2     0.9    -      -       -      -
    371A  VAL*     5.6     2.5    -      -       -      -
    375A  THR*     4.1    19.5    -      -       -      -
    377A  GLU      3.5     5.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 22 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21A  SER*     1.3    70.3    -      -       -      +
     23A  CYS*     1.3    59.6    +      -       -      +
     24A  TYR*     3.5    24.8    +      -       -      -
     48A  ALA*     5.1     2.3    -      -       -      +
     49A  ILE      3.5     6.3    +      -       -      -
     50A  LEU*     4.7     2.8    -      -       -      +
     73A  GLY*     4.3     8.1    +      -       -      -
     77A  PHE*     3.9    21.9    -      -       -      +
    375A  THR*     3.5     2.8    -      -       -      -
    376A  ARG*     3.0    26.5    +      -       -      -
    377A  GLU*     2.8    33.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 23 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21A  SER*     3.7     0.9    +      -       -      -
     22A  SER*     1.3    73.7    -      -       -      +
     24A  TYR*     1.3    64.2    +      -       -      +
     25A  LEU      3.5     1.9    +      -       -      -
     49A  ILE*     2.7    45.9    +      -       +      +
     51A  PHE*     3.8    18.4    -      -       +      -
    343A  LEU*     3.7    29.8    -      -       -      -
    371A  VAL*     4.0    22.2    -      -       +      -
    374A  TRP*     3.6    25.8    -      -       -      -
    375A  THR*     4.1     4.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 24 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22A  SER*     3.5    21.8    +      -       -      -
     23A  CYS*     1.3    73.4    -      -       -      +
     25A  LEU*     1.3    60.2    +      -       -      +
     26A  PRO*     3.3    13.5    -      -       -      +
     46A  GLU*     3.4    27.5    -      -       +      +
     47A  ILE      3.7     1.6    -      -       -      -
     48A  ALA*     3.6    26.5    -      -       +      -
     73A  GLY      4.1     0.3    -      -       -      -
     74A  PRO*     3.3    36.7    -      -       +      +
    374A  TRP*     2.9    27.7    +      -       -      +
    376A  ARG*     3.3    63.6    +      -       +      +
    377A  GLU*     5.3     3.0    +      -       +      -
     82B  GLU*     5.0     4.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 25 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23A  CYS*     3.5     2.4    +      -       -      -
     24A  TYR*     1.3    69.7    -      -       -      +
     26A  PRO*     1.3    76.7    -      -       +      +
     27A  LEU*     3.6    12.8    +      -       +      +
     46A  GLU*     3.1     5.6    -      -       -      -
     47A  ILE*     2.8    48.8    +      -       +      +
     49A  ILE*     4.4     9.2    -      -       +      -
    339A  TRP      3.3    28.7    -      -       -      +
    340A  LEU*     3.5    28.0    -      -       +      -
    342A  PRO*     4.4     7.6    -      -       +      -
    343A  LEU*     4.1    15.9    -      -       +      -
    374A  TRP*     3.6    30.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with PRO 26 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24A  TYR      3.3    11.4    -      -       -      +
     25A  LEU*     1.3    94.9    -      -       +      +
     27A  LEU*     1.3    64.2    +      -       -      +
     28A  ALA      3.8     1.7    +      -       -      -
     45A  THR      3.8     7.0    -      -       -      +
     46A  GLU*     4.2     6.1    -      -       +      +
    374A  TRP*     3.4    45.0    -      -       +      +
----------------------------------------------------------
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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