Contacts of the strand formed by residues 215 - 232 (chain A) in PDB entry 1EZX


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 215 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207A  ASP*     3.6    37.7    -      -       +      +
    208A  PHE      3.3    11.7    -      -       -      +
    209A  HIS*     3.4    19.6    +      -       +      +
    211A  ASP      5.0     1.4    +      -       -      -
    213A  VAL      4.2     1.5    +      -       -      -
    214A  THR*     1.3    80.4    +      -       -      +
    216A  VAL*     1.3    68.0    +      -       -      +
    217A  LYS*     5.8     1.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 216 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207A  ASP*     3.6     2.9    -      -       -      -
    208A  PHE*     2.8    51.1    +      -       +      +
    210A  VAL*     4.1    11.4    -      -       +      -
    214A  THR*     4.2     9.4    -      -       +      -
    215A  THR*     1.3    78.6    -      -       -      +
    217A  LYS*     1.3    63.4    +      -       -      +
    218A  VAL*     4.1    11.9    -      -       +      -
    390B  ASN*     3.7    35.4    -      -       -      +
    391B  PRO*     4.5     1.3    -      -       +      -
    392B  THR*     4.0    13.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 217 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205A  GLU*     3.8    37.8    +      -       +      +
    206A  GLU*     3.4     7.4    -      -       -      +
    207A  ASP*     2.7    39.6    +      -       -      +
    215A  THR*     5.8     0.4    -      -       +      -
    216A  VAL*     1.3    75.7    -      -       -      +
    218A  VAL*     1.3    65.4    +      -       -      +
    219A  PRO*     4.8     0.3    -      -       -      +
    392B  THR*     4.2     7.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 218 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205A  GLU*     3.4     6.5    -      -       -      +
    206A  GLU      3.0    32.6    +      -       -      +
    208A  PHE*     4.1    19.1    -      -       +      -
    216A  VAL*     4.1     8.3    -      -       +      -
    217A  LYS*     1.3    81.0    -      -       -      +
    219A  PRO*     1.3    75.5    -      -       +      +
    220A  MET*     3.1     7.8    +      -       +      +
    289A  PRO*     4.3    22.7    -      -       +      -
    290A  LYS      5.5     1.1    -      -       -      +
    391B  PRO*     3.7    20.9    -      -       +      -
    392B  THR*     3.6    25.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with PRO 219 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203A  THR*     4.0    16.4    -      -       +      -
    204A  GLU      3.8     6.7    -      -       -      +
    205A  GLU*     4.4    11.2    -      -       +      +
    217A  LYS      4.8     0.2    -      -       -      +
    218A  VAL*     1.3    86.2    -      -       +      +
    220A  MET*     1.3    61.1    +      -       -      +
    289A  PRO*     3.7     2.6    -      -       -      +
    290A  LYS*     3.2    54.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 220 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203A  THR*     3.3     5.0    -      -       -      +
    204A  GLU      2.7    37.1    +      -       -      +
    206A  GLU*     3.8    24.9    -      -       +      -
    207A  ASP      3.8    22.0    -      -       -      +
    208A  PHE*     5.1     0.9    -      -       +      -
    218A  VAL*     3.1     8.7    +      -       +      +
    219A  PRO*     1.3    72.1    -      -       -      +
    221A  MET*     1.3    64.3    +      -       -      +
    222A  LYS*     3.9     3.8    +      -       -      +
    287A  HIS*     3.8    38.8    -      -       +      -
    288A  LEU      3.8     3.1    -      -       -      -
    289A  PRO*     3.5    33.9    -      -       +      -
    365B  LYS*     5.5     1.3    -      -       +      -
    366B  PHE      4.0    14.4    -      -       -      +
    367B  ASN*     4.0    11.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with MET 221 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194A  TRP*     5.2     0.2    -      -       -      +
    198A  PHE*     3.9    34.7    -      -       +      -
    203A  THR*     4.0     8.5    -      -       +      +
    220A  MET*     1.3    74.2    -      -       -      +
    222A  LYS*     1.3    61.9    +      -       -      +
    286A  LEU      3.7     0.3    -      -       -      +
    287A  HIS*     3.4     5.9    -      -       -      -
    288A  LEU*     2.8    57.3    +      -       +      +
    289A  PRO      3.9    13.7    -      -       -      +
    290A  LYS*     3.6    19.7    -      -       +      -
    340A  ILE*     4.0    13.7    -      -       +      -
    341A  ASP*     3.3    14.1    -      -       -      +
    342A  GLU*     3.3    45.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 222 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    198A  PHE*     3.7    11.4    -      -       -      +
    199A  GLU      4.8     2.8    +      -       -      +
    202A  ASP*     4.0    39.8    +      -       +      +
    204A  GLU*     2.9    34.2    +      -       -      +
    206A  GLU*     2.7    38.0    +      -       -      -
    220A  MET*     3.9     5.6    +      -       -      +
    221A  MET*     1.3    81.4    -      -       -      +
    223A  ARG*     1.3    64.2    +      -       -      +
    286A  LEU      3.3     6.5    -      -       -      +
    287A  HIS*     3.5    38.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 223 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    196A  ARG*     3.1    38.6    +      -       -      +
    197A  PRO      3.7    23.5    +      -       -      -
    198A  PHE*     3.6    23.3    -      -       +      +
    202A  ASP*     5.6     1.6    -      -       -      -
    222A  LYS*     1.3    78.6    -      -       -      +
    224A  LEU*     1.3    67.0    +      -       -      +
    225A  GLY*     4.5     6.0    -      -       -      -
    226A  MET*     3.9    19.0    +      -       -      +
    227A  PHE*     3.0    47.1    -      -       +      -
    281A  ARG*     5.7     0.6    -      -       -      +
    285A  SER*     4.8     1.3    -      -       -      -
    286A  LEU      3.0    30.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 224 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    223A  ARG*     1.3    82.6    +      -       -      +
    225A  GLY*     1.3    57.5    +      -       -      +
    284A  ALA      3.7     3.6    -      -       -      +
    285A  SER*     3.4    37.2    -      -       -      +
    361B  PRO*     5.2    14.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 225 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    223A  ARG*     4.5     7.2    -      -       -      -
    224A  LEU*     1.3    77.2    -      -       -      +
    226A  MET*     1.3    66.1    +      -       -      -
    227A  PHE*     3.8     9.0    -      -       -      -
    282A  ARG      3.6     0.2    -      -       -      +
    283A  SER*     3.2     8.1    +      -       -      -
    284A  ALA      2.9    39.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 226 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    196A  ARG*     5.7     0.2    -      -       -      +
    223A  ARG*     3.9    13.8    +      -       -      +
    225A  GLY*     1.3    73.1    -      -       -      -
    227A  PHE*     1.3    68.4    +      -       -      +
    281A  ARG*     3.5    36.7    +      -       +      +
    282A  ARG*     3.4    14.4    -      -       -      +
    283A  SER*     3.4    38.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 227 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    196A  ARG*     6.0     1.1    -      -       +      -
    198A  PHE*     5.3     1.3    -      +       -      -
    223A  ARG*     3.0    53.4    -      -       +      -
    225A  GLY      3.8    11.9    -      -       -      -
    226A  MET*     1.3    76.8    -      -       -      +
    228A  ASN*     1.3    59.6    +      -       -      +
    229A  ILE*     2.9    28.8    +      -       +      +
    240A  LEU*     4.2    14.1    -      -       +      -
    241A  LEU      5.8     0.4    -      -       -      -
    242A  MET*     4.5    13.2    -      -       +      -
    281A  ARG*     3.3     8.1    -      -       -      +
    282A  ARG      2.8    33.1    +      -       -      +
    284A  ALA*     3.5    31.9    -      -       +      -
    286A  LEU*     3.5    36.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 228 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227A  PHE*     1.3    69.9    -      -       -      +
    229A  ILE*     1.3    58.1    +      -       -      +
    230A  GLN*     4.3    12.1    +      -       -      -
    239A  VAL      3.8     0.9    -      -       -      +
    240A  LEU*     3.6     2.1    -      -       -      +
    241A  LEU*     2.9    71.1    +      -       -      +
    243A  LYS*     4.8    10.3    +      -       -      +
    278A  ASN*     3.5    23.3    +      -       -      +
    279A  GLU*     4.0    11.5    -      -       +      +
    280A  ASP      3.1    22.1    +      -       -      +
    281A  ARG*     4.4     9.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 229 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227A  PHE*     2.9    25.3    +      -       +      +
    228A  ASN*     1.3    76.9    -      -       -      +
    230A  GLN*     1.3    75.2    +      -       -      +
    238A  TRP*     3.7    13.9    -      -       +      -
    239A  VAL      3.3    15.5    -      -       -      +
    240A  LEU*     4.3    15.5    -      -       +      -
    280A  ASP      4.1     4.1    +      -       -      +
    282A  ARG*     3.7    40.1    +      -       +      +
    284A  ALA*     4.4    13.5    -      -       +      -
    286A  LEU*     5.0     5.6    -      -       +      -
    364B  VAL*     3.5    42.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 230 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228A  ASN*     4.3    12.4    +      -       -      +
    229A  ILE*     1.3    82.8    -      -       -      +
    231A  HIS*     1.3    61.2    +      -       -      +
    232A  CYS*     3.6     7.5    +      -       -      +
    238A  TRP*     3.4    12.0    -      -       -      -
    239A  VAL*     2.8    38.9    +      -       +      +
    241A  LEU*     5.9     0.9    -      -       +      -
    275A  PHE*     3.2    34.7    -      -       +      -
    278A  ASN*     4.0    18.3    +      -       -      +
    280A  ASP*     4.9     4.3    -      -       -      +
    282A  ARG*     4.3    12.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 231 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230A  GLN*     1.3    74.2    -      -       -      +
    232A  CYS*     1.3    62.6    +      -       -      +
    233A  LYS*     3.4    13.0    +      -       +      +
    236A  SER*     4.2     1.6    -      -       -      -
    237A  SER      3.9    15.3    +      -       -      -
    238A  TRP*     3.5    55.2    -      +       +      -
    256A  ASP*     3.0    35.4    +      -       -      -
    282A  ARG*     5.1     2.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 232 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230A  GLN*     3.6     7.4    +      -       -      +
    231A  HIS*     1.3    71.1    -      -       -      +
    233A  LYS*     1.3    56.9    +      -       -      +
    234A  LYS*     3.1    34.0    +      -       -      -
    235A  LEU*     3.2    19.4    +      -       +      -
    236A  SER      3.1    15.9    +      -       -      -
    237A  SER      3.3    18.5    +      -       -      +
    239A  VAL*     4.3     4.5    -      -       +      -
    271A  ILE*     5.8     2.0    -      -       -      -
    275A  PHE*     4.2    25.8    -      -       +      -
----------------------------------------------------------
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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