Contacts of the strand formed by residues 132 - 138 (chain C) in PDB entry 3A4Y


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 132 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1C  MET*     3.6    31.4    -      -       +      -
     19C  LEU*     3.9    17.0    -      -       +      +
     21C  ALA*     4.0    26.9    -      -       +      +
     22C  GLY*     4.5     0.7    -      -       -      +
     24C  ARG*     4.8     2.5    -      -       +      +
     26C  VAL*     3.9    24.0    -      -       +      -
    128C  ARG*     3.5     8.0    -      -       -      +
    129C  LEU*     2.6    42.3    +      -       +      +
    130C  GLY      3.2     0.2    -      -       -      -
    131C  ALA*     1.3    74.5    -      -       -      +
    133C  SER*     1.3    72.2    +      -       -      +
    134C  LEU*     3.4    23.3    -      -       +      -
    150C  ALA*     4.5     8.1    -      -       +      -
    151C  GLN      3.8     7.2    -      -       -      +
    152C  GLY*     4.4     1.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 133 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178B  PRO*     3.9    21.7    -      -       -      +
    179B  LEU*     3.0    33.3    +      -       -      +
    126C  TRP*     4.0     7.9    -      -       -      -
    127C  LEU      3.3     6.3    -      -       -      -
    128C  ARG*     4.1     2.9    -      -       -      +
    131C  ALA      5.3     0.2    +      -       -      -
    132C  LEU*     1.3    78.7    +      -       -      +
    134C  LEU*     1.3    62.5    -      -       -      +
    149C  VAL      3.9     0.2    -      -       -      +
    150C  ALA*     3.3     4.0    -      -       -      +
    151C  GLN*     2.9    44.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 134 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19C  LEU*     4.5    13.9    -      -       +      -
     26C  VAL*     4.1    20.6    -      -       +      -
     28C  LEU*     4.6     1.1    -      -       +      -
     56C  LEU*     3.5    33.9    -      -       +      -
    121C  LEU*     5.2     1.2    -      -       -      +
    125C  GLU      3.6     0.5    -      -       -      +
    126C  TRP*     3.3     9.1    -      -       -      -
    127C  LEU*     2.8    43.0    +      -       +      +
    129C  LEU*     4.2    14.1    -      -       +      -
    132C  LEU*     3.4    26.2    -      -       +      -
    133C  SER*     1.3    84.2    -      -       -      +
    135C  ALA*     1.3    61.3    +      -       -      +
    148C  VAL*     4.5     9.2    -      -       +      -
    149C  VAL      3.3     7.0    -      -       -      +
    150C  ALA*     4.1     9.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 135 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126B  TRP*     5.4     3.1    -      -       +      +
     56C  LEU*     5.5     0.6    -      -       -      +
    121C  LEU*     5.3     3.1    -      -       -      -
    124C  GLY*     4.8     5.6    -      -       -      -
    125C  GLU      3.6    15.7    -      -       -      +
    126C  TRP*     3.6    33.0    -      -       +      +
    134C  LEU*     1.3    79.8    -      -       -      +
    136C  PHE*     1.3    69.6    +      -       -      +
    148C  VAL*     3.8     2.4    -      -       -      +
    149C  VAL*     3.0    36.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 136 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124B  GLY      4.6     5.0    -      -       -      +
    126B  TRP*     5.4     2.4    +      -       -      -
     56C  LEU*     4.1    17.0    -      -       +      -
     57C  LEU      3.6    24.0    -      -       -      -
     58C  THR*     4.8     2.2    -      -       -      -
     81C  TYR      3.9    10.8    -      -       -      -
     82C  ALA*     3.9    14.6    -      -       -      -
     83C  THR*     4.1    10.8    -      -       +      -
    121C  LEU*     3.4    49.7    -      -       +      +
    122C  GLU      4.6     1.5    +      -       -      +
    123C  TYR*     3.8    16.9    -      -       +      +
    124C  GLY*     3.3    22.0    +      -       -      +
    125C  GLU      4.5     3.4    +      -       -      -
    135C  ALA*     1.3    78.2    -      -       -      +
    137C  GLY*     1.3    59.4    +      -       -      +
    146C  ALA*     3.7    18.6    -      -       +      -
    147C  PHE*     3.4    11.9    -      -       -      -
    148C  VAL*     3.8    22.9    -      -       +      -
    149C  VAL*     5.8     1.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 137 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124B  GLY      4.8     9.4    -      -       -      -
    126B  TRP*     5.5     1.3    -      -       -      -
    123C  TYR*     3.7     6.1    -      -       -      -
    136C  PHE*     1.3    74.1    -      -       -      +
    138C  GLN*     1.3    62.7    +      -       -      -
    146C  ALA*     3.1     8.8    -      -       -      +
    147C  PHE*     2.9    55.4    +      -       -      -
    175C  SER*     5.6     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 138 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124B  GLY      6.2     0.4    -      -       -      -
    125B  GLU*     6.4     0.9    -      -       +      -
    123C  TYR*     3.3    41.3    +      -       +      +
    137C  GLY*     1.3    69.9    -      -       -      -
    139C  ALA*     1.3    62.0    +      -       -      +
    140C  GLY*     2.5    30.0    +      -       -      +
    142C  LEU      5.0     1.2    -      -       -      +
    144C  GLY      5.7     0.4    -      -       -      +
    145C  SER*     3.4     8.3    +      -       -      +
    147C  PHE*     3.2    12.3    -      -       -      -
    172C  PRO*     3.5    27.1    -      -       +      +
    173C  ASP      3.5    24.2    -      -       -      +
    174C  PRO*     3.8     0.5    -      -       -      +
    175C  SER*     3.0    37.8    +      -       -      +
    267C  TYR*     5.3     3.0    +      -       -      +
    389C  TRP*     5.3     0.2    +      -       -      -
----------------------------------------------------------
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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