Contacts of the helix formed by residues 131 - 140 (chain D) in PDB entry 3P1M


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 131 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110D  LEU*     4.7     2.9    -      -       -      +
    129D  ALA      3.5     7.2    +      -       -      +
    130D  ILE*     1.3    80.0    -      -       -      +
    132D  ASP*     1.3    66.4    +      -       -      +
    133D  GLU*     3.5    10.8    +      -       -      +
    134D  GLU*     3.1    23.8    +      -       -      +
    135D  ASN*     2.9    21.9    +      -       -      +
    153D  GLN*     5.5     2.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 132 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130D  ILE      4.0     0.4    +      -       -      +
    131D  THR*     1.3    74.5    -      -       -      +
    133D  GLU*     1.3    64.7    +      -       -      +
    135D  ASN*     3.1     9.5    +      -       -      +
    136D  ASP*     3.0    32.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 133 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109D  THR      4.8     2.8    -      -       -      +
    110D  LEU*     3.7    32.6    -      -       +      +
    131D  THR*     3.5     9.8    +      -       -      +
    132D  ASP*     1.3    80.9    -      -       -      +
    134D  GLU*     1.3    64.0    +      -       -      +
    136D  ASP*     3.3    20.7    +      -       -      +
    137D  MET*     3.5    10.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 134 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110D  LEU*     3.7    19.2    -      -       +      +
    130D  ILE*     3.8    12.9    -      -       +      +
    131D  THR*     3.1    18.8    +      -       -      +
    133D  GLU*     1.3    78.9    -      -       -      +
    135D  ASN*     1.3    59.5    -      -       -      +
    137D  MET*     3.1     4.7    +      -       -      +
    138D  LEU*     2.8    26.7    +      -       +      +
    149D  ARG*     2.7    48.5    +      -       -      +
    150D  LEU*     3.1    36.2    +      -       +      +
    153D  GLN*     3.4    23.7    -      -       +      +
    154D  ILE*     4.8     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 135 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130D  ILE*     3.5    27.6    -      -       +      +
    131D  THR      2.9    18.1    +      -       -      +
    132D  ASP*     3.1     9.4    +      -       -      +
    134D  GLU*     1.3    78.3    -      -       -      +
    136D  ASP*     1.3    65.2    +      -       -      +
    138D  LEU*     3.7     6.8    -      -       -      +
    139D  ASP*     2.9    39.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 136 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    132D  ASP*     3.0    21.8    +      -       -      +
    133D  GLU*     3.5    11.8    -      -       -      +
    134D  GLU      3.2     0.2    -      -       -      -
    135D  ASN*     1.3    80.4    +      -       -      +
    137D  MET*     1.3    76.9    +      -       +      +
    139D  ASP*     3.5    18.7    +      -       -      +
    140D  LEU*     3.9    10.6    +      -       -      +
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Residues in contact with MET 137 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110D  LEU*     3.2    34.5    -      -       +      +
    111D  ALA*     3.9    19.3    -      -       -      +
    112D  CYS*     3.5    17.3    -      -       -      +
    113D  SER*     2.9    23.4    +      -       -      -
    133D  GLU      3.5     8.9    +      -       -      +
    134D  GLU      3.1     3.4    +      -       -      +
    136D  ASP*     1.3    91.1    -      -       +      +
    138D  LEU*     1.3    66.0    +      -       -      +
    140D  LEU*     3.0    25.0    +      -       +      +
    141D  ALA      3.5     0.7    +      -       -      -
    150D  LEU*     3.6    14.8    -      -       +      -
    102E  GLY*     5.8     4.0    -      -       -      +
    105E  ALA*     4.0    20.9    -      -       +      -
    114E  THR*     5.7     0.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 138 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116D  HIS*     4.5     1.3    -      -       +      -
    130D  ILE*     3.5    26.7    -      -       +      -
    134D  GLU*     2.8    19.3    +      -       +      +
    135D  ASN*     3.8     9.9    -      -       -      +
    137D  MET*     1.3    75.5    -      -       -      +
    139D  ASP*     1.3    64.3    +      -       -      +
    141D  ALA*     3.0    23.6    +      -       +      +
    144D  LEU*     3.5    30.6    -      -       +      +
    148D  SER*     3.8    22.4    -      -       -      +
    149D  ARG*     4.1    18.6    -      -       -      -
    150D  LEU*     3.8    28.2    -      -       +      +
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Residues in contact with ASP 139 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135D  ASN*     2.9    30.4    +      -       -      +
    136D  ASP*     3.6    15.1    -      -       -      +
    137D  MET      3.2     0.2    -      -       -      -
    138D  LEU*     1.3    76.0    -      -       -      +
    140D  LEU*     1.3    59.7    +      -       +      +
    141D  ALA      3.3     0.4    -      -       -      -
    144D  LEU*     4.4    11.2    -      -       -      +
    171E  VAL*     3.8     2.6    -      -       -      +
    172E  ALA*     3.9    15.2    -      -       +      +
    175E  ARG*     2.7    38.5    +      -       -      +
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Residues in contact with LEU 140 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113D  SER*     3.5    14.3    +      -       -      +
    136D  ASP      3.9    14.1    -      -       -      +
    137D  MET*     3.0    25.6    +      -       +      +
    139D  ASP*     1.3    80.7    -      -       +      +
    141D  ALA*     1.3    62.4    +      -       -      +
    142D  TYR*     3.4     2.6    +      -       -      +
    102E  GLY*     5.4     6.3    -      -       -      +
    114E  THR*     4.0    26.2    -      -       +      -
    170E  THR*     3.9    34.3    -      -       +      +
    171E  VAL*     3.4    15.9    -      -       +      +
    172E  ALA*     4.4     7.6    -      -       +      -
----------------------------------------------------------
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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