Contacts of the strand formed by residues 243 - 252 (chain A) in PDB entry 4X6D


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 TRP 243 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  ASP*     3.7    33.4    -      -       +      -
    210A  GLY      2.7    31.0    +      -       -      -
    211A  PHE*     2.9    45.9    +      -       +      +
    212A  TYR*     4.8     6.5    -      +       -      -
    213A  PRO      4.4     0.7    -      -       -      -
    214A  LYS*     3.3    55.3    -      -       +      +
    235A  ILE*     3.5    26.7    -      -       +      -
    236A  LEU      3.3    22.0    -      -       -      -
    237A  PRO*     3.5    31.9    -      -       +      -
    238A  SER*     5.8     0.9    -      -       -      -
    241A  GLY      3.9    13.6    +      -       -      -
    242A  THR*     1.3    77.7    -      -       -      +
    244A  TYR*     1.3    58.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 244 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    190A  TRP*     3.8    25.5    -      +       -      -
    207A  HIS*     2.5    34.1    +      -       +      -
    208A  VAL      3.4    10.5    -      -       -      -
    209A  SER*     3.3    22.7    -      -       -      -
    210A  GLY      4.8     0.9    -      -       -      +
    211A  PHE*     4.2     0.9    -      -       -      -
    234A  ASP      3.7     1.0    -      -       -      +
    235A  ILE*     3.6     2.4    -      -       -      -
    236A  LEU*     2.7    50.1    +      -       +      +
    238A  SER*     5.3     3.8    -      -       -      +
    243A  TRP*     1.3    76.4    -      -       -      +
    245A  LEU*     1.3    66.2    +      -       -      +
    246A  ARG*     2.9    38.4    +      -       +      +
     10B  TYR*     3.7    34.9    -      +       +      +
     11B  SER      4.8     9.6    -      -       -      +
     12B  ARG*     5.2     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 245 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206A  CYS      3.7     1.7    -      -       -      +
    207A  HIS*     3.9     1.2    -      -       -      -
    208A  VAL*     2.8    40.3    +      -       +      +
    211A  PHE*     4.2    11.4    -      -       +      -
    216A  VAL*     3.6    27.8    -      -       +      -
    218A  VAL*     4.3    17.1    -      -       +      +
    232A  ARG*     3.8    24.9    -      -       +      +
    233A  GLY      3.3    30.7    -      -       -      +
    234A  ASP      3.3    15.5    -      -       -      +
    235A  ILE*     4.1     8.1    -      -       +      +
    244A  TYR*     1.3    82.5    -      -       -      +
    246A  ARG*     1.3    74.7    +      -       -      +
    247A  ALA*     5.7     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 246 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205A  VAL*     3.7    16.4    -      -       +      -
    206A  CYS      3.4     3.4    -      -       -      +
    207A  HIS*     3.4    25.8    -      -       +      +
    231A  GLN      3.9     0.7    -      -       -      +
    232A  ARG*     4.0     0.2    -      -       -      -
    233A  GLY*     2.9    31.3    +      -       -      -
    234A  ASP      4.7     1.6    +      -       -      -
    236A  LEU*     5.1    10.9    -      -       -      +
    244A  TYR*     2.9    45.5    +      -       +      +
    245A  LEU*     1.3    79.2    -      -       -      +
    247A  ALA*     1.3    59.8    +      -       -      +
    248A  THR*     4.2     8.2    -      -       +      +
      8B  GLN*     5.4     6.7    +      -       -      +
      9B  VAL      5.0     8.3    +      -       -      -
     10B  TYR*     4.6     9.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 247 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206A  CYS*     3.0    24.0    +      -       +      -
    218A  VAL*     3.5    42.1    -      -       +      +
    220A  TRP*     3.0    18.3    +      -       +      +
    230A  THR*     4.4    10.8    -      -       +      -
    231A  GLN      3.4     9.0    -      -       -      +
    232A  ARG*     4.8     4.5    -      -       +      -
    245A  LEU*     4.2     2.2    -      -       +      -
    246A  ARG*     1.3    74.0    -      -       -      +
    248A  THR*     1.3    62.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 248 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203A  GLN*     3.2    30.0    +      -       -      +
    204A  LEU      3.2     6.3    -      -       -      -
    205A  VAL*     3.8    26.2    -      -       +      -
    220A  TRP*     3.9     2.6    -      -       -      -
    229A  GLY      3.8     0.2    -      -       -      +
    230A  THR*     3.4     5.0    -      -       -      -
    231A  GLN*     2.8    55.0    +      -       -      +
    246A  ARG*     4.8     8.5    -      -       +      -
    247A  ALA*     1.3    79.9    -      -       -      +
    249A  LEU*     1.3    61.4    +      -       -      +
    250A  GLU*     6.0     1.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 249 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202A  LEU      3.7     0.3    -      -       -      +
    203A  GLN*     3.5     1.8    -      -       -      -
    204A  LEU*     2.9    34.6    +      -       +      +
    220A  TRP*     3.6    34.8    -      -       +      +
    227A  GLN*     4.4    15.0    -      -       +      +
    228A  GLN      4.1     8.3    -      -       -      +
    229A  GLY*     3.8     8.3    -      -       -      +
    230A  THR*     3.7    27.1    -      -       -      +
    248A  THR*     1.3    76.5    -      -       -      +
    250A  GLU*     1.3    71.4    +      -       -      +
    251A  VAL*     3.6    24.6    +      -       +      -
    259A  LEU*     3.6    18.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 250 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    197A  PRO*     3.3    35.4    -      -       +      +
    201A  HIS*     5.6     4.0    -      -       +      -
    202A  LEU      3.3     6.3    -      -       -      +
    203A  GLN*     4.3    19.0    +      -       +      -
    229A  GLY      5.1     1.6    +      -       -      -
    231A  GLN*     5.7     3.3    +      -       -      +
    248A  THR*     6.0     1.1    -      -       -      +
    249A  LEU*     1.3    84.9    -      -       -      +
    251A  VAL*     1.3    64.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 251 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201A  HIS*     3.2    11.0    -      -       -      +
    202A  LEU*     2.8    42.1    +      -       +      -
    204A  LEU*     4.3    13.5    -      -       +      -
    227A  GLN*     5.9     0.7    -      -       -      +
    249A  LEU*     3.6    31.6    -      -       +      +
    250A  GLU*     1.3    81.5    -      -       -      +
    252A  ALA*     1.3    71.9    +      -       -      +
    255A  GLU*     4.1    15.3    -      -       +      +
    256A  ALA*     4.1    22.0    -      -       +      -
    259A  LEU*     3.6    12.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 252 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    200A  GLY      3.6     7.6    -      -       -      +
    201A  HIS*     3.8    21.8    -      -       +      +
    251A  VAL*     1.3    86.3    -      -       -      +
    253A  ALA*     1.3    67.7    +      -       -      +
    254A  GLY      3.2     2.9    -      -       -      +
    255A  GLU*     3.1    34.2    +      -       +      +
----------------------------------------------------------
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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