Contacts of the strand formed by residues 119 - 125 (chain C) in PDB entry 6PSI


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 LEU 119 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153B  THR*     4.8    16.8    -      -       +      -
    185B  VAL*     3.9    23.1    -      -       +      -
     80C  PRO      5.2     1.1    -      -       -      +
     81C  GLY*     5.6     4.7    -      -       -      -
    117C  ARG*     2.9    11.1    +      -       +      +
    118C  ASP*     1.3    67.6    -      -       -      +
    120C  ARG*     1.3    56.5    +      -       -      +
    140C  VAL*     3.9    25.1    -      -       +      +
    141C  ALA*     3.8    27.4    -      -       +      -
    143C  ARG*     5.7     3.4    -      -       +      -
    164C  MET      4.7     1.8    -      -       -      +
    165C  GLY*     3.9    21.1    -      -       -      -
    166C  GLY*     4.0     4.3    -      -       -      +
    173C  ASP      3.0    13.4    +      -       -      +
    174C  LEU*     3.2    20.7    -      -       +      +
    175C  LEU*     2.9    23.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 120 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148B  GLU*     2.9    29.9    +      -       -      -
    150B  ASP*     3.0    43.1    +      -       -      +
    151B  HIS*     3.5    29.4    +      -       +      +
    153B  THR      4.6     2.9    +      -       -      +
    185B  VAL*     3.2     8.6    -      -       -      +
    186B  THR*     3.0    32.8    +      -       +      -
    190B  CYS*     3.4    24.0    -      -       -      -
    192B  GLY      4.4     1.6    +      -       -      -
    193B  PRO*     3.4    18.2    -      -       -      +
    118C  ASP      3.4     3.4    +      -       -      -
    119C  LEU*     1.3    72.3    -      -       -      +
    121C  ALA*     1.3    57.3    +      -       -      +
    158C  VAL*     3.3    22.8    -      -       -      +
    175C  LEU*     3.2    36.8    -      -       +      +
    177C  VAL*     3.7    14.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 121 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184B  HIS      3.2    19.1    -      -       -      +
    185B  VAL*     3.7     0.9    -      -       -      +
    186B  THR*     3.5     7.4    -      -       -      +
    119C  LEU      3.8     1.0    +      -       -      -
    120C  ARG*     1.3    73.7    -      -       -      +
    122C  GLU*     1.3    59.6    +      -       -      +
    140C  VAL*     3.5    24.9    -      -       +      -
    174C  LEU*     3.7    12.1    -      -       +      -
    175C  LEU      2.9     5.3    +      -       -      -
    176C  LEU*     3.1    19.1    -      -       +      +
    177C  VAL      2.8    23.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 122 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184B  HIS*     3.1    49.7    +      -       +      +
    185B  VAL      3.6     0.2    -      -       -      -
    186B  THR*     3.4    22.5    -      -       +      +
    187B  SER      3.1     5.5    +      -       -      -
    188B  ARG*     2.9    44.7    +      -       -      +
    189B  LYS*     3.0    21.8    +      -       -      +
    121C  ALA*     1.3    72.5    -      -       -      +
    123C  LEU*     1.4    62.3    +      -       -      +
    177C  VAL*     3.0    14.8    -      -       +      +
    179C  ARG*     3.5    28.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 123 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    181B  LEU*     5.1     6.7    -      -       +      -
    182B  VAL*     3.6    42.4    -      -       +      -
    184B  HIS*     5.0     0.4    -      -       -      +
    121C  ALA      4.3     0.2    -      -       -      +
    122C  GLU*     1.4    74.5    -      -       -      +
    124C  PRO*     1.4    67.1    -      -       -      +
    125C  LEU*     3.4    18.4    +      -       +      -
    149C  ILE*     5.3     2.0    -      -       +      -
    159C  ILE*     4.5     9.2    -      -       +      -
    176C  LEU*     3.6    46.9    -      -       +      +
    177C  VAL      3.1    23.3    +      -       -      +
    178C  VAL*     3.6    17.0    -      -       +      +
    179C  ARG*     2.9    26.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 124 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    163B  LEU*     5.9    11.9    -      -       +      -
    167B  ASN*     5.0     5.5    -      -       -      +
    182B  VAL*     3.5    24.5    -      -       +      +
    183B  ALA      6.0     0.2    -      -       -      +
    184B  HIS*     3.6    28.3    -      -       +      +
    123C  LEU*     1.4    79.4    -      -       +      +
    125C  LEU*     1.3    58.4    +      -       -      +
    179C  ARG*     3.2    18.6    -      -       +      +
    181C  LEU*     4.3    16.8    -      -       +      -
----------------------------------------------------------
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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
----------------------------------------------------------
    167B  ASN*     3.5    28.7    -      -       -      +
    181B  LEU*     4.9     8.3    -      -       +      -
    182B  VAL*     5.1     4.7    -      -       +      -
    123C  LEU*     3.4    17.9    +      -       +      +
    124C  PRO*     1.3    75.3    -      -       -      +
    126C  THR*     1.3    73.1    +      -       -      +
    129C  GLU*     3.8    15.9    -      -       +      +
    130C  ALA*     4.3     9.4    -      -       -      -
    133C  GLY*     6.0     0.4    -      -       -      -
    149C  ILE*     5.3     7.2    -      -       +      -
    153C  VAL*     3.8    27.6    -      -       +      -
    159C  ILE*     4.9     7.4    -      -       +      -
    178C  VAL*     3.6    16.8    -      -       +      -
    179C  ARG      3.1     6.1    +      -       -      -
    180C  LEU*     3.4    11.5    -      -       -      +
    181C  LEU*     3.3    26.9    +      -       -      +
----------------------------------------------------------
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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