Contacts of the helix formed by residues 241 - 256 (chain Y) in PDB entry 3N5N


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 SER 241 (chain Y).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    237Y  ALA*     5.9     0.2    -      -       -      -
    238Y  ASP*     2.7    28.0    +      -       -      -
    239Y  PRO      3.0     0.2    -      -       -      -
    240Y  SER*     1.3    84.7    +      -       -      +
    242Y  THR*     1.3    62.4    +      -       -      +
    243Y  LEU*     3.4    15.1    +      -       -      +
    244Y  VAL*     3.6    12.7    +      -       -      +
    245Y  SER*     3.0    25.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 242 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    240Y  SER      3.7     0.8    +      -       -      -
    241Y  SER*     1.3    73.1    +      -       -      +
    243Y  LEU*     1.3    71.7    -      -       +      +
    244Y  VAL      3.2     0.2    -      -       -      -
    245Y  SER*     4.0     3.3    -      -       -      -
    246Y  GLN*     3.0    41.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 243 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    241Y  SER*     3.4     8.1    +      -       -      +
    242Y  THR*     1.3    84.7    -      -       +      +
    244Y  VAL*     1.3    63.9    +      -       +      +
    246Y  GLN*     3.9     3.6    -      -       +      +
    247Y  GLN*     3.0    46.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 244 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230Y  CYS*     5.1     0.9    -      -       -      -
    235Y  ILE*     4.1    24.0    -      -       +      -
    237Y  ALA*     3.6    27.4    -      -       +      +
    238Y  ASP      3.5    21.5    -      -       -      +
    239Y  PRO*     3.6    22.2    -      -       +      -
    241Y  SER*     3.6     9.2    +      -       -      +
    242Y  THR      3.2     0.6    -      -       -      -
    243Y  LEU*     1.3    83.7    -      -       +      +
    245Y  SER*     1.3    65.9    +      -       -      +
    247Y  GLN*     3.0     7.8    +      -       +      +
    248Y  LEU*     2.9    34.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 245 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    239Y  PRO      3.0    13.9    +      -       -      -
    240Y  SER*     4.3     3.6    +      -       -      -
    241Y  SER      3.0    20.6    +      -       -      -
    242Y  THR*     4.0     4.7    -      -       -      -
    244Y  VAL*     1.3    73.6    -      -       -      +
    246Y  GLN*     1.3    75.9    +      -       -      +
    248Y  LEU*     3.0    10.2    +      -       -      +
    249Y  TRP*     2.9    35.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 246 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203Y  ARG*     2.8    30.9    +      -       -      +
    242Y  THR*     3.0    29.5    +      -       +      +
    243Y  LEU*     4.1     3.8    -      -       +      +
    245Y  SER*     1.3    82.7    -      -       -      +
    247Y  GLN*     1.3    57.0    +      -       -      +
    249Y  TRP*     3.5     3.9    +      -       -      +
    250Y  GLY*     2.9    24.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 247 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71Y  HIS*     5.4     1.2    -      -       -      +
     72Y  LEU*     3.8    23.9    -      -       -      +
    235Y  ILE*     5.0    14.0    -      -       +      +
    243Y  LEU*     3.0    41.8    +      -       +      +
    244Y  VAL*     3.0    12.4    +      -       +      +
    246Y  GLN*     1.3    77.0    -      -       -      +
    248Y  LEU*     1.3    58.4    -      -       -      +
    250Y  GLY*     3.2     2.6    +      -       -      -
    251Y  LEU*     2.9    33.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 248 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221Y  VAL*     3.6    18.7    -      -       +      +
    226Y  ALA*     4.2    20.0    -      -       +      -
    229Y  LEU*     3.7    27.3    -      -       +      +
    230Y  CYS*     4.0    22.7    -      -       -      -
    235Y  ILE*     3.7    27.6    -      -       +      -
    239Y  PRO*     5.0     7.6    -      -       +      +
    244Y  VAL*     2.9    29.7    +      -       +      +
    245Y  SER*     3.6     9.2    -      -       -      +
    247Y  GLN*     1.3    71.9    -      -       -      +
    249Y  TRP*     1.3    62.1    +      -       +      +
    251Y  LEU*     3.3     7.9    +      -       +      +
    252Y  ALA*     2.9    29.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 249 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203Y  ARG*     3.4    70.3    -      -       +      +
    204Y  TYR*     4.0    19.7    -      -       +      -
    218Y  THR*     5.7     0.7    -      -       -      -
    219Y  GLY      3.2    28.2    -      -       -      +
    220Y  VAL*     3.7     8.1    -      -       +      -
    221Y  VAL*     3.6    47.8    +      -       +      +
    245Y  SER*     2.9    35.9    +      -       -      +
    246Y  GLN*     3.9     5.6    -      -       -      +
    248Y  LEU*     1.3    73.4    -      -       +      +
    250Y  GLY*     1.3    64.7    +      -       -      +
    252Y  ALA*     3.5     1.2    +      -       -      +
    253Y  GLN*     3.0    26.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 250 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246Y  GLN      2.9    15.8    +      -       -      -
    247Y  GLN*     3.2     4.7    +      -       -      -
    248Y  LEU      3.2     0.4    -      -       -      -
    249Y  TRP*     1.3    75.4    -      -       -      +
    251Y  LEU*     1.3    60.6    +      -       -      +
    253Y  GLN*     3.1     7.5    +      -       -      +
    254Y  GLN*     3.0    23.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 251 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71Y  HIS      3.8    17.0    -      -       -      +
     72Y  LEU*     4.2    15.7    -      -       +      -
     73Y  PHE*     3.6    31.9    -      -       +      -
    229Y  LEU*     4.4    15.5    -      -       +      -
    233Y  ARG*     3.8    20.6    -      -       +      -
    235Y  ILE*     4.0    19.7    -      -       +      -
    247Y  GLN*     2.9    17.9    +      -       -      +
    248Y  LEU*     3.3    14.8    +      -       +      +
    250Y  GLY*     1.3    73.7    -      -       -      +
    252Y  ALA*     1.3    58.5    +      -       -      +
    254Y  GLN*     3.3    15.5    +      -       -      +
    255Y  LEU*     2.9    36.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 252 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219Y  GLY*     3.8     4.2    -      -       -      -
    220Y  VAL      4.1    20.6    -      -       -      +
    221Y  VAL*     3.7    20.2    -      -       +      -
    225Y  VAL*     4.9     1.6    -      -       +      -
    229Y  LEU*     4.2     9.5    -      -       +      +
    248Y  LEU      2.9    16.5    +      -       -      +
    249Y  TRP*     3.8     4.3    -      -       -      +
    251Y  LEU*     1.3    76.5    -      -       -      +
    253Y  GLN*     1.3    58.4    +      -       -      +
    255Y  LEU*     3.8     4.8    -      -       -      +
    256Y  VAL*     2.9    33.8    +      -       -      +
    264Y  PHE*     4.8     5.3    -      -       +      -
    265Y  ASN*     5.9     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 253 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217Y  ALA      2.9    21.7    -      -       -      +
    218Y  THR*     3.5    10.5    +      -       -      +
    219Y  GLY*     2.8    33.5    +      -       -      +
    249Y  TRP*     3.0    18.4    +      -       -      +
    250Y  GLY*     3.1     6.5    +      -       -      +
    252Y  ALA*     1.3    77.5    -      -       -      +
    254Y  GLN*     1.3    63.2    +      -       -      +
    256Y  VAL*     3.3    16.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 254 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72Y  LEU*     5.6     2.2    -      -       -      +
     73Y  PHE*     2.6    49.8    +      -       -      +
     79Y  VAL*     3.8    14.0    -      -       +      +
     83Y  ARG*     2.9    23.6    +      -       -      -
    250Y  GLY      3.0    11.9    +      -       -      +
    251Y  LEU*     3.6    23.7    +      -       -      +
    253Y  GLN*     1.3    79.0    -      -       -      +
    255Y  LEU*     1.3    58.3    +      -       -      +
    256Y  VAL      3.5     0.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 255 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73Y  PHE*     3.7    44.6    -      -       +      -
     79Y  VAL*     4.5    14.8    -      -       +      +
     82Y  PHE*     4.0    34.3    -      -       +      -
     83Y  ARG*     2.9    17.5    +      -       +      +
    229Y  LEU*     3.7    30.1    -      -       +      -
    251Y  LEU*     2.9    23.4    +      -       +      +
    252Y  ALA*     4.1     3.1    -      -       -      +
    254Y  GLN*     1.3    72.4    -      -       +      +
    256Y  VAL*     1.3    66.9    +      -       -      +
    257Y  ASP      3.1     1.7    +      -       -      -
    264Y  PHE*     3.4    23.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 256 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83Y  ARG*     3.5     7.3    +      -       -      -
    217Y  ALA*     3.8    21.4    -      -       +      +
    218Y  THR      4.2     6.7    -      -       -      +
    219Y  GLY*     3.8    18.6    -      -       -      +
    252Y  ALA      2.9    14.0    +      -       -      +
    253Y  GLN*     3.3    18.6    -      -       -      +
    254Y  GLN      3.4     0.7    -      -       -      +
    255Y  LEU*     1.3    75.9    -      -       -      +
    257Y  ASP*     1.3    64.7    +      -       -      +
    258Y  PRO*     3.3     8.5    -      -       -      +
    261Y  PRO*     3.6    37.0    -      -       +      +
    264Y  PHE*     3.7    15.7    -      -       +      -
    265Y  ASN*     4.1     8.1    -      -       -      +
----------------------------------------------------------
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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