Contacts of the strand formed by residues 231 - 239 (chain B) in PDB entry 3NX4


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 MSE 231 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210B  GLN*     3.8     2.1    -      -       -      +
    212B  TRP*     3.6    28.3    -      -       -      +
    213B  ALA      3.8     0.4    -      -       -      +
    214B  GLY*     3.6    17.0    -      -       -      +
    215B  ALA*     4.0     0.9    -      -       -      -
    227B  VAL*     3.3    29.2    -      -       -      +
    228B  LEU*     3.3    13.2    +      -       -      +
    229B  ALA      3.5     0.6    -      -       -      -
    230B  GLN*     1.3    79.6    -      -       -      +
    232B  ASN*     1.3    65.5    +      -       -      +
    235B  GLY*     4.1     0.9    -      -       -      -
    236B  CYS      3.4    38.6    -      -       -      +
    237B  VAL*     3.4    24.0    -      -       +      -
    258B  ARG*     3.6    24.3    +      -       -      -
    260B  VAL*     3.6    27.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 232 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    147B  ASP      4.0    10.1    +      -       -      -
    148B  GLY*     5.0     2.6    -      -       -      -
    210B  GLN*     3.4    18.0    -      -       -      +
    211B  LEU      3.4    24.1    +      -       -      -
    212B  TRP      2.8    18.9    +      -       -      +
    213B  ALA*     3.4    29.9    -      -       -      +
    230B  GLN      3.6     0.2    +      -       -      -
    231B  MSE      1.3    76.6    -      -       -      +
    233B  TYR*     1.3    72.2    +      -       -      +
    234B  GLY      3.2     0.7    +      -       -      -
    235B  GLY*     2.8    16.3    +      -       -      +
    260B  VAL*     3.9     5.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 233 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    266A  ASP*     2.6    37.6    +      -       -      +
    269A  MSE      3.8    42.7    -      -       +      -
    270A  THR*     4.0     3.6    +      -       -      -
    271A  PRO*     5.0     7.5    -      -       +      +
    210B  GLN*     2.9    20.2    +      -       -      +
    231B  MSE      3.7     0.2    +      -       -      -
    232B  ASN*     1.3    76.8    -      -       -      +
    234B  GLY*     1.3    64.5    +      -       -      +
    235B  GLY      3.3     0.2    +      -       -      -
    257B  LEU      3.7    13.5    -      -       -      -
    258B  ARG*     3.3    30.5    -      -       +      +
    259B  ASN*     3.8    18.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 234 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141B  ALA*     5.0     4.5    -      -       -      +
    143B  ILE*     4.0    12.0    -      -       -      +
    233B  TYR*     1.3    79.9    -      -       -      +
    235B  GLY*     1.3    64.6    +      -       -      +
    236B  CYS*     5.2     0.3    -      -       -      +
    258B  ARG      2.7    14.8    +      -       -      -
    259B  ASN*     3.4    21.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 235 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143B  ILE*     4.3     2.0    -      -       -      -
    213B  ALA*     3.3    17.9    -      -       -      -
    231B  MSE      4.1    10.1    -      -       -      -
    232B  ASN*     2.8    18.8    +      -       -      -
    233B  TYR      3.2     1.2    +      -       -      -
    234B  GLY*     1.3    81.7    -      -       -      +
    236B  CYS*     1.3    60.9    +      -       -      +
    260B  VAL*     3.5     7.5    -      -       -      +
    261B  ARG*     3.0    23.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 236 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137B  ALA      4.2     8.7    -      -       -      -
    138B  LEU*     3.3    12.8    -      -       +      +
    141B  ALA*     3.4    33.9    -      -       +      -
    143B  ILE*     4.0     9.1    -      -       +      +
    213B  ALA      3.4     6.3    +      -       -      -
    214B  GLY*     3.2     6.6    -      -       -      -
    215B  ALA      3.1    21.5    +      -       -      -
    231B  MSE      3.4     1.6    -      -       -      +
    235B  GLY*     1.3    75.9    -      -       -      +
    237B  VAL*     1.3    76.1    +      -       -      +
    238B  ALA*     4.5     0.7    -      -       -      -
    261B  ARG*     3.3    26.0    -      -       +      +
    263B  GLN*     4.4     6.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 237 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215B  ALA*     3.6    16.6    -      -       +      +
    217B  ASP*     4.5     4.5    -      -       +      -
    224B  LEU*     3.8    26.9    -      -       +      -
    227B  VAL*     4.2     5.4    -      -       +      -
    228B  LEU*     3.9    14.4    -      -       +      -
    231B  MSE      3.4    40.4    -      -       +      -
    236B  CYS*     1.3    76.3    -      -       -      +
    238B  ALA*     1.3    64.9    +      -       -      +
    260B  VAL*     4.9     0.4    -      -       +      -
    261B  ARG      2.8    11.4    +      -       -      +
    262B  LEU*     3.5    15.0    -      -       +      +
    263B  GLN*     2.7    32.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 238 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134B  CYS*     3.7    46.8    -      -       +      +
    137B  ALA*     4.1    12.3    -      -       +      -
    138B  LEU*     4.3     5.3    -      -       +      +
    215B  ALA      2.8    15.2    +      -       -      +
    216B  ILE*     3.4     2.9    -      -       +      -
    217B  ASP      2.9    26.0    +      -       -      +
    236B  CYS      4.1     0.6    +      -       -      -
    237B  VAL*     1.3    71.3    -      -       -      +
    239B  ALA*     1.3    60.7    +      -       -      +
    240B  CYS      4.1     0.2    +      -       -      -
    263B  GLN*     3.3     8.3    -      -       -      +
    265B  VAL*     4.3     1.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 239 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    252A  VAL*     5.8     1.3    -      -       +      -
    255A  PHE*     4.9     6.7    -      -       +      -
    256A  ILE*     3.7    12.7    -      -       +      +
    217B  ASP*     3.7     9.0    -      -       +      +
    224B  LEU*     4.2    22.9    -      -       +      -
    237B  VAL      3.8     0.6    +      -       -      -
    238B  ALA*     1.3    71.9    -      -       -      +
    240B  CYS*     1.3    59.9    +      -       -      +
    241B  GLY      3.9     1.1    -      -       -      +
    262B  LEU*     3.7    24.9    -      -       +      -
    263B  GLN      2.9     8.9    +      -       -      +
    264B  GLY*     3.6     2.6    -      -       -      -
    265B  VAL*     2.9    28.2    +      -       -      +
----------------------------------------------------------
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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