Contacts of the strand formed by residues 264 - 276 (chain A) in PDB entry 4MSL


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 264 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    254A  TRP*     4.3     2.0    -      -       -      -
    255A  ARG*     2.8    56.7    +      -       -      +
    263A  PHE*     1.3    75.5    -      -       -      +
    265A  THR*     1.3    67.0    +      -       -      +
    266A  ILE*     3.2    23.1    +      -       +      +
    301A  GLY      5.3     0.9    -      -       -      -
    302A  ASP*     2.8    36.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 265 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    252A  GLU*     4.0    15.6    +      -       -      +
    253A  LEU      3.3     6.7    -      -       -      -
    254A  TRP*     3.3    48.5    -      -       +      +
    263A  PHE      5.8     0.7    -      -       -      +
    264A  LYS*     1.3    77.3    -      -       -      +
    266A  ILE*     1.3    60.3    +      -       -      +
    267A  GLY      3.4     5.6    +      -       -      -
    268A  VAL*     4.8     5.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 266 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235A  PHE*     3.7    36.8    -      -       +      -
    253A  LEU*     2.6    38.8    +      -       +      +
    254A  TRP      4.4     0.9    -      -       -      +
    255A  ARG*     3.8    14.8    -      -       +      +
    264A  LYS*     3.2    34.0    +      -       +      +
    265A  THR*     1.3    73.4    -      -       -      +
    267A  GLY*     1.3    54.4    +      -       -      +
    280A  LEU*     4.1     2.9    -      -       +      -
    300A  GLN      3.9     2.5    -      -       -      +
    301A  GLY*     3.7    34.1    -      -       -      +
    304A  TRP*     2.7    33.0    +      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 267 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    252A  GLU*     3.6     3.6    -      -       -      +
    253A  LEU*     2.8    34.7    +      -       -      +
    265A  THR      3.4     2.8    -      -       -      -
    266A  ILE*     1.3    81.9    +      -       -      +
    268A  VAL*     1.3    67.8    -      -       -      +
    270A  ILE*     3.7    15.5    -      -       -      -
    304A  TRP*     5.0     1.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 268 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    251A  LEU      4.0     2.9    -      -       -      -
    252A  GLU*     3.7    23.8    -      -       +      +
    265A  THR*     4.8     7.4    -      -       -      +
    267A  GLY*     1.3    80.9    -      -       -      +
    269A  LYS*     1.3    78.1    +      -       +      +
    270A  ILE*     3.1    11.3    +      -       -      +
    284A  VAL*     3.8     8.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 269 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    249A  GLY      2.9    28.8    -      -       -      +
    250A  ALA*     4.4    12.3    +      -       +      +
    251A  LEU      3.4     5.1    +      -       -      -
    252A  GLU*     5.4     0.2    -      -       -      +
    268A  VAL*     1.3    82.4    -      -       +      +
    270A  ILE*     1.3    57.5    +      -       -      +
    284A  VAL*     3.4    14.0    -      -       +      +
    285A  MET*     3.2    33.5    +      -       +      +
    286A  ALA      5.5     1.3    -      -       -      -
    287A  ASP*     3.8    32.0    +      -       -      +
    288A  LYS      5.6     1.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 270 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    237A  THR*     4.0    21.5    -      -       +      -
    249A  GLY*     3.2    10.0    +      -       -      -
    251A  LEU*     2.6    53.4    +      -       +      +
    253A  LEU*     3.6    27.6    -      -       +      +
    267A  GLY*     3.7    13.9    -      -       -      -
    268A  VAL      3.5    20.2    -      -       -      +
    269A  LYS*     1.3    73.2    -      -       -      +
    271A  TYR*     1.3    62.9    +      -       -      +
    272A  SER      3.8    21.8    -      -       -      +
    273A  PHE*     5.1     1.3    -      -       +      -
    282A  ALA*     4.4    13.9    -      -       +      -
    283A  SER      3.8     1.6    -      -       -      +
    284A  VAL*     4.3    17.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 271 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    248A  LEU*     3.5    54.1    -      -       +      +
    249A  GLY      3.9     4.0    -      -       -      +
    251A  LEU*     4.1     8.6    -      -       -      +
    269A  LYS      3.7     0.8    +      -       -      -
    270A  ILE*     1.3    74.5    -      -       -      +
    272A  SER*     1.3    64.9    +      -       -      +
    283A  SER*     2.9    20.9    +      -       -      +
    284A  VAL*     4.8     1.1    -      -       -      +
    285A  MET*     3.3    31.6    -      -       +      -
    292A  ARG*     3.4    43.3    +      -       +      -
    314A  GLN*     4.6    18.0    +      -       +      +
    809A  2ET      3.4    23.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 272 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225A  LEU*     4.7     9.0    -      -       -      +
    237A  THR*     5.5     2.0    -      -       -      -
    270A  ILE*     3.8     8.1    -      -       -      +
    271A  TYR*     1.3    87.1    -      -       -      +
    273A  PHE*     1.3    63.4    +      -       -      +
    282A  ALA*     3.4     2.3    -      -       -      -
    283A  SER*     2.7    45.2    +      -       -      +
    809A  2ET      3.8    26.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 273 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225A  LEU*     3.6    39.9    -      -       +      +
    227A  LYS*     3.7    38.0    +      -       +      -
    235A  PHE*     3.7    39.9    -      -       +      -
    236A  PHE      4.3     0.2    -      -       -      -
    237A  THR*     3.6    29.2    -      -       +      -
    253A  LEU*     4.0    16.2    -      -       +      -
    270A  ILE*     5.1     1.1    -      -       +      -
    272A  SER*     1.3    77.7    +      -       -      +
    274A  GLY*     1.3    62.6    +      -       -      +
    275A  LEU*     4.2     4.9    -      -       +      -
    280A  LEU*     4.1    15.9    -      -       +      -
    281A  PHE      3.2    14.8    -      -       -      +
    282A  ALA*     4.2     8.3    -      -       +      +
    809A  2ET      3.7    15.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 274 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227A  LYS*     3.7    12.3    -      -       -      -
    273A  PHE*     1.3    79.4    -      -       -      +
    275A  LEU*     1.3    65.5    +      -       -      +
    280A  LEU*     3.8     1.7    -      -       -      +
    281A  PHE*     2.9    40.2    +      -       -      +
    320A  ILE*     5.8     3.4    -      -       -      -
    809A  2ET      4.2    11.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 275 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227A  LYS*     3.8    38.6    -      -       +      +
    228A  TRP      4.8     5.8    -      -       -      +
    229A  GLY*     4.7    10.5    -      -       -      -
    235A  PHE*     4.1    28.0    -      -       +      -
    273A  PHE*     4.2    11.0    -      -       +      -
    274A  GLY*     1.3    78.6    -      -       -      +
    276A  GLY*     1.3    60.7    +      -       -      +
    277A  GLY      5.7     2.5    -      -       -      +
    279A  PHE      3.7    10.3    -      -       -      +
    280A  LEU*     4.1    13.7    -      -       +      -
    281A  PHE*     5.0     1.1    -      -       -      -
    320A  ILE*     5.4     5.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 276 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    274A  GLY      4.2     0.8    +      -       -      -
    275A  LEU*     1.3    73.8    -      -       -      +
    277A  GLY*     1.3    69.8    +      -       -      -
    279A  PHE*     2.8    31.3    +      -       -      +
    281A  PHE*     4.2     8.5    -      -       -      -
    320A  ILE*     5.2     3.6    -      -       -      +
    323A  ALA*     3.5    20.9    -      -       -      -
----------------------------------------------------------
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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