Contacts of the strand formed by residues 50 - 58 (chain X) in PDB entry 2PMO


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 LYS 50 (chain X).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46X  GLU*     3.4     5.0    -      -       -      +
     47X  LYS      3.0    37.2    +      -       -      +
     48X  ASP*     2.9     6.4    +      -       +      +
     49X  ASN*     1.3    81.3    -      -       -      +
     51X  PHE*     1.3    75.7    +      -       -      +
     52X  TYR*     3.4    31.3    +      -       +      +
    104X  GLU*     5.2     7.7    +      -       -      -
    118X  GLU*     6.5     0.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 51 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31X  ILE*     3.6    24.9    -      -       +      -
     44X  LEU*     3.8    11.4    -      -       +      -
     45X  CYS      3.4    12.8    -      -       -      -
     46X  GLU*     4.3    16.6    -      -       +      -
     49X  ASN      6.0     2.0    -      -       -      -
     50X  LYS*     1.3    90.0    -      -       -      +
     52X  TYR*     1.3    66.8    +      -       -      +
    118X  GLU*     5.1     0.3    -      -       -      -
    119X  TYR*     3.5    47.6    +      +       +      +
    121X  GLU*     5.7     2.0    -      -       +      -
    337X  TYR*     5.8     4.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 52 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28X  TYR*     3.6    24.0    -      +       +      -
     44X  LEU*     3.4     9.0    -      -       -      +
     45X  CYS*     2.8    33.6    +      -       +      +
     46X  GLU      4.7     0.4    -      -       -      -
     47X  LYS*     3.3    48.2    +      -       +      -
     48X  ASP*     5.6     0.9    -      -       -      +
     50X  LYS*     3.4    41.1    +      -       +      +
     51X  PHE*     1.3    76.4    -      -       -      +
     53X  ALA*     1.3    58.5    +      -       -      +
     54X  LEU*     4.1    17.7    -      -       +      -
    104X  GLU*     4.4    19.5    -      -       +      -
    116X  ILE*     4.1    17.0    -      -       +      -
    117X  TYR      3.7    10.5    -      -       -      +
    118X  GLU*     5.1     2.0    -      -       -      -
    119X  TYR*     4.0     6.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 53 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34X  LEU*     4.1    13.0    -      -       +      -
     42X  ILE*     4.2     3.1    -      -       +      -
     43X  ILE      3.2     6.5    -      -       -      +
     52X  TYR*     1.3    73.7    -      -       -      +
     54X  LEU*     1.3    63.0    +      -       -      +
     55X  LYS      3.9     1.2    +      -       -      -
    115X  ILE      3.4     1.4    -      -       -      +
    117X  TYR*     2.8    41.2    +      -       -      +
    118X  GLU      4.0     3.1    -      -       -      +
    119X  TYR*     4.3     1.7    -      -       -      +
    400X  HMD      3.5    44.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 54 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25X  ILE*     4.0    29.6    -      -       +      -
     28X  TYR*     4.0    30.7    -      -       +      -
     42X  ILE*     4.4     0.9    -      -       -      -
     43X  ILE*     2.7    43.0    +      -       +      +
     45X  CYS*     3.9    29.4    -      -       +      -
     52X  TYR*     4.1     8.5    -      -       +      -
     53X  ALA*     1.3    76.3    -      -       -      +
     55X  LYS*     1.3    63.0    +      -       -      +
     56X  LYS      3.3     3.3    +      -       -      -
    107X  ILE*     4.7     3.8    -      -       +      -
    114X  TYR*     4.2    21.5    -      -       +      -
    115X  ILE      3.2     9.2    -      -       -      +
    116X  ILE*     4.3    14.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 55 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40X  ASN*     2.9    37.7    +      -       -      +
     41X  LYS      3.3    10.5    -      -       -      +
     42X  ILE*     4.1    10.9    -      -       +      +
     53X  ALA      3.9     2.0    +      -       -      -
     54X  LEU*     1.3    69.1    -      -       -      +
     56X  LYS*     1.3    62.9    +      -       -      +
     57X  TYR*     2.6    42.3    +      -       +      +
     88X  GLU*     3.4     9.1    +      -       -      -
    113X  VAL      3.4     2.1    -      -       -      +
    114X  TYR*     3.3     5.0    -      -       -      -
    115X  ILE*     3.0    35.4    +      -       +      +
    117X  TYR*     4.1    12.1    -      -       +      +
    190X  ASP*     4.1    12.6    +      -       -      +
    400X  HMD      3.3    45.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 56 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16X  LYS*     5.6     1.2    -      -       -      +
     40X  ASN*     3.2    11.1    -      -       -      +
     41X  LYS*     2.6    58.8    +      -       +      +
     43X  ILE*     4.0    13.0    -      -       +      -
     54X  LEU      3.3     2.2    +      -       -      -
     55X  LYS*     1.3    72.3    -      -       -      +
     57X  TYR*     1.3    69.5    -      -       -      +
     58X  GLU*     3.5    34.7    +      -       +      -
    112X  GLU*     4.0     7.3    +      -       -      -
    113X  VAL      3.3     3.6    -      -       -      +
    114X  TYR*     3.3    44.8    +      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 57 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39X  PHE      4.2     9.2    -      -       -      -
     40X  ASN*     3.6    26.5    -      -       +      +
     55X  LYS*     2.6    47.5    +      -       +      +
     56X  LYS*     1.3    77.0    -      -       -      +
     58X  GLU*     1.3    69.8    +      -       -      +
     59X  LYS      4.3     0.2    -      -       -      -
     62X  LEU*     4.2     9.6    -      -       +      -
     85X  PHE*     3.4    45.3    -      +       +      -
     88X  GLU*     2.7    25.8    +      -       -      -
     92X  ILE*     4.0     8.0    -      -       +      +
    111X  ASP      4.6     0.4    -      -       -      -
    112X  GLU*     3.5     1.2    -      -       -      -
    113X  VAL*     2.9    38.7    +      -       +      +
    115X  ILE*     3.7    23.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 58 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39X  PHE      5.2     0.4    +      -       -      -
     56X  LYS*     3.5    32.7    +      -       +      -
     57X  TYR*     1.3    80.3    -      -       -      +
     59X  LYS*     1.3    59.4    +      -       -      +
     60X  SER*     3.4     8.5    +      -       -      -
     61X  LEU*     3.2    38.9    +      -       +      +
     62X  LEU*     2.9    38.1    +      -       -      +
    111X  ASP*     3.8     6.8    -      -       -      +
    112X  GLU*     4.3    20.3    -      -       +      +
----------------------------------------------------------
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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