Contacts of the strand formed by residues 144 - 155 (chain A) in PDB entry 2E56


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 GLU 144 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69A  ARG*     3.6    43.6    +      -       -      +
    138A  ILE*     3.6     7.4    -      -       -      +
    139A  SER*     3.3    27.1    +      -       -      +
    142A  PRO*     3.3    19.5    -      -       -      +
    143A  GLU*     1.4    94.3    -      -       -      +
    145A  MET*     1.3    68.0    +      -       -      +
    146A  LEU*     3.4     0.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET 145 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  ASP*     3.9    21.8    -      -       +      +
     39A  LYS*     3.3    27.8    -      -       -      +
     41A  GLN*     3.7    29.4    -      -       +      +
     69A  ARG*     3.7    23.8    +      -       -      +
    136A  GLU*     6.1     3.8    -      -       +      -
    137A  ALA      3.8     4.7    -      -       -      +
    138A  ILE*     4.7     6.9    -      -       +      +
    144A  GLU*     1.3    80.1    -      -       -      +
    146A  LEU*     1.3    61.8    +      -       -      +
    147A  PHE*     3.6    13.7    -      -       -      +
    148A  CYS*     3.5    37.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 146 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  GLN*     3.8    19.2    -      -       -      +
     65A  TYR*     3.6    36.6    +      -       +      +
     68A  ARG*     4.0     8.0    -      -       +      +
     69A  ARG*     4.0    26.9    +      -       +      +
     71A  LEU*     3.8    27.1    -      -       +      -
     74A  LEU*     3.8    26.2    -      -       +      -
    137A  ALA*     2.7    19.9    +      -       +      +
    138A  ILE*     4.5     0.9    -      -       -      +
    139A  SER*     4.1    16.6    -      -       -      +
    144A  GLU      3.4     0.4    +      -       -      -
    145A  MET*     1.3    77.0    -      -       -      +
    147A  PHE*     1.3    79.2    +      -       +      +
    501A  MYR      5.5     1.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 147 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36A  TYR*     5.8     4.3    -      -       +      -
     41A  GLN*     4.9     3.4    -      -       +      -
     42A  TYR      5.3     5.6    -      -       -      +
     44A  ILE*     4.0    18.6    -      -       +      -
     65A  TYR*     3.8    27.4    -      +       +      +
     76A  PHE*     4.1    12.3    -      +       -      -
    135A  VAL*     4.1    14.8    -      -       +      -
    136A  GLU*     3.8     1.4    -      -       -      +
    137A  ALA*     2.9    47.7    +      -       +      +
    145A  MET*     3.6    15.6    -      -       -      +
    146A  LEU*     1.3    94.6    -      -       +      +
    148A  CYS*     1.3    66.9    +      -       -      +
    149A  LEU*     3.6    34.8    -      -       +      -
    501A  MYR      4.6     8.1    -      -       +      -
    601A  MYR      4.3    15.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 148 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36A  TYR*     3.8     4.7    -      -       -      -
     37A  CYS*     2.1    76.5    +      -       -      +
     38A  ASP*     3.9     7.0    -      -       +      -
    134A  VAL*     3.9    13.9    -      -       -      -
    135A  VAL      3.3     7.4    -      -       -      -
    136A  GLU*     4.8    14.8    -      -       +      -
    145A  MET*     3.5    13.2    -      -       +      +
    147A  PHE*     1.3    77.0    -      -       -      +
    149A  LEU*     1.3    69.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 149 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  TYR*     3.8    19.1    -      -       +      -
     35A  THR      3.7     2.9    -      -       -      +
     36A  TYR*     3.5    39.7    -      -       +      -
     37A  CYS*     3.3     5.1    -      -       -      -
     44A  ILE*     3.9     9.6    -      -       +      -
     46A  ILE*     3.9    27.1    -      -       +      -
    133A  CYS      3.7     1.2    -      -       -      +
    134A  VAL*     3.3     2.6    -      -       -      -
    135A  VAL*     2.7    37.5    +      -       +      +
    147A  PHE*     3.6    31.9    -      -       +      -
    148A  CYS*     1.3    77.2    -      -       -      +
    150A  GLU*     1.3    59.4    +      -       -      +
    151A  PHE*     3.9    22.7    -      -       +      -
    601A  MYR      4.5     2.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 150 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  TYR*     3.1     4.8    -      -       -      -
     35A  THR*     3.0    47.9    +      -       -      +
     37A  CYS*     3.7    15.8    -      -       +      +
    132A  LYS*     4.1    21.3    -      -       +      +
    133A  CYS      3.7     2.0    -      -       -      -
    134A  VAL*     3.9    26.2    -      -       +      +
    149A  LEU*     1.3    73.4    -      -       -      +
    151A  PHE*     1.3    66.0    +      -       -      +
    152A  VAL*     3.9    10.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 151 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24A  VAL*     4.6     4.5    -      -       +      -
     32A  ILE*     4.3     6.7    -      -       +      -
     33A  SER      3.4     7.2    -      -       -      +
     34A  TYR*     3.6    27.1    -      +       +      -
     46A  ILE*     3.7    25.6    -      -       +      -
    132A  LYS*     3.2     8.8    -      -       -      +
    133A  CYS      2.8    43.9    +      -       -      +
    135A  VAL*     3.8    25.1    -      -       +      -
    149A  LEU*     3.9    18.8    -      -       +      -
    150A  GLU*     1.3    74.9    -      -       -      +
    152A  VAL*     1.3    61.8    +      -       -      +
    153A  ILE*     4.1    16.4    -      -       +      -
    601A  MYR      4.0    18.6    -      -       +      -
    701A  MYR      3.9    35.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 152 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21A  GLN*     6.2     1.8    -      -       -      +
     31A  SER      3.4     4.2    -      -       -      +
     32A  ILE*     3.6     1.7    -      -       -      -
     33A  SER*     2.8    42.7    +      -       -      +
     34A  TYR*     5.8     0.7    -      -       -      -
    130A  LYS*     3.9    16.4    -      -       -      +
    131A  TYR      3.5     3.4    -      -       -      +
    132A  LYS*     4.1    22.7    -      -       +      -
    150A  GLU*     3.9    11.6    +      -       +      +
    151A  PHE*     1.3    79.0    -      -       -      +
    153A  ILE*     1.3    64.1    +      -       -      +
    154A  LEU*     3.7    31.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 153 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30A  ALA*     4.0    12.8    -      -       +      -
     31A  SER      3.4     3.8    -      -       -      +
     32A  ILE*     4.3    22.4    -      -       +      -
     52A  ILE*     6.3     1.6    -      -       +      -
     54A  LEU*     3.8    36.8    -      -       +      -
    131A  TYR*     2.7    58.7    +      -       +      +
    132A  LYS      4.7     0.7    -      -       -      -
    133A  CYS*     4.5     7.2    -      -       +      +
    151A  PHE*     4.1    21.1    -      -       +      +
    152A  VAL*     1.3    79.4    -      -       -      +
    154A  LEU*     1.3    61.8    +      -       -      +
    701A  MYR      4.4    18.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 154 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23A  TRP*     5.5     9.6    -      -       +      -
     30A  ALA*     3.2     5.9    -      -       -      +
     31A  SER*     2.8    49.7    +      -       -      +
     54A  LEU*     4.3     2.0    -      -       -      -
    129A  GLY      4.0     1.8    -      -       -      +
    130A  LYS*     3.6    39.5    -      -       +      +
    152A  VAL*     3.7    15.2    -      -       +      -
    153A  ILE*     1.3    73.2    -      -       -      +
    155A  HIS*     1.3    65.6    +      -       -      +
    801A  NAG      4.7    17.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 155 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29A  ASP*     3.4    23.5    +      -       +      +
     54A  LEU*     3.7    12.5    -      -       +      +
     55A  LYS*     5.0     0.2    -      -       -      -
    127A  SER*     3.5    42.4    +      -       -      -
    128A  LYS*     3.9     7.5    -      -       +      +
    129A  GLY      3.0    31.8    +      -       -      +
    131A  TYR*     5.0     0.4    -      -       +      -
    153A  ILE      3.8     1.4    +      -       -      -
    154A  LEU*     1.3    78.2    -      -       -      +
    156A  GLN*     1.3    84.8    +      -       -      +
    157A  PRO*     3.2     6.9    -      -       -      +
    159A  SER*     2.7    29.1    +      -       -      -
    160A  ASN*     3.6    21.8    +      -       -      -
----------------------------------------------------------
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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