Contacts of the helix formed by residues 226 - 240 (chain Y) in PDB entry 5MG3


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 LEU 226 (chain Y).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202Y  ALA*     4.4     4.9    -      -       -      -
    222Y  LEU      5.0     1.3    -      -       -      +
    223Y  VAL*     3.6    33.6    +      -       +      +
    224Y  ALA      3.0     4.4    +      -       -      -
    225Y  VAL*     1.3    94.7    -      -       +      +
    227Y  VAL*     1.4    54.2    +      -       -      +
    228Y  PHE*     3.1    27.1    -      -       +      -
    229Y  ALA*     2.8    35.2    +      -       +      +
    230Y  VAL*     3.6     4.0    +      -       -      +
    398Y  PRO*     4.0    21.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 227 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199Y  LEU      4.2    10.3    -      -       -      +
    200Y  PRO*     3.4    26.9    -      -       +      +
    201Y  PRO*     4.1     2.0    -      -       +      -
    202Y  ALA*     4.0    14.3    -      -       -      +
    224Y  ALA      3.5    19.1    -      -       -      +
    225Y  VAL*     3.4     7.8    +      -       -      +
    226Y  LEU*     1.4    77.7    -      -       -      +
    228Y  PHE*     1.3    57.1    +      -       +      +
    230Y  VAL*     3.4     3.6    +      -       +      +
    231Y  THR*     2.8    44.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 228 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225Y  VAL      3.5    20.4    -      -       -      -
    226Y  LEU*     3.7    25.6    -      -       +      -
    227Y  VAL*     1.3    78.7    -      -       +      +
    229Y  ALA*     1.4    72.7    +      -       +      -
    231Y  THR*     3.7     7.6    +      -       -      -
    232Y  PHE*     2.9    30.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 229 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    226Y  LEU*     2.8    19.5    +      -       +      +
    228Y  PHE*     1.4    81.1    -      -       +      +
    230Y  VAL*     1.3    58.0    +      -       -      +
    232Y  PHE*     3.4     7.6    +      -       +      +
    233Y  PHE*     2.9    46.9    +      -       +      -
    398Y  PRO*     4.3    18.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 230 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199Y  LEU*     4.1    29.4    -      -       +      +
    202Y  ALA*     3.8    36.8    -      -       +      +
    226Y  LEU      3.6     1.6    +      -       -      +
    227Y  VAL*     3.4     8.4    +      -       -      +
    229Y  ALA*     1.3    74.9    -      -       -      +
    231Y  THR*     1.4    60.4    +      -       +      +
    233Y  PHE*     3.5     3.4    +      -       -      +
    234Y  VAL*     3.1    28.3    +      -       +      +
    397Y  VAL*     3.6    27.6    -      -       +      -
    398Y  PRO*     3.9    15.0    -      -       +      +
    399Y  PHE*     4.2    13.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 231 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    482E  THR*     4.7    16.2    -      -       +      -
    483E  ALA*     6.2     2.7    -      -       -      -
    486E  SER*     5.6     5.4    -      -       -      +
    199Y  LEU*     5.5     7.9    -      -       +      +
    227Y  VAL*     2.8    41.1    +      -       +      +
    228Y  PHE*     3.7     9.2    +      -       -      -
    230Y  VAL*     1.4    76.0    -      -       +      +
    232Y  PHE*     1.4    53.5    +      -       -      +
    234Y  VAL*     3.7     5.5    -      -       +      +
    235Y  VAL*     2.7    46.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 232 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228Y  PHE      2.9    22.1    +      -       -      +
    229Y  ALA*     3.6     8.5    -      -       -      +
    230Y  VAL      3.4     0.2    -      -       -      -
    231Y  THR*     1.4    73.4    +      -       -      +
    233Y  PHE*     1.4    78.3    +      +       -      +
    235Y  VAL*     3.9     9.1    -      -       +      -
    236Y  PHE*     2.9    46.0    +      +       -      +
    391Y  MET*     3.8    29.8    -      -       +      -
    395Y  MET*     6.1     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 233 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    229Y  ALA*     2.9    36.6    +      -       +      +
    230Y  VAL*     3.5     4.9    +      -       -      +
    231Y  THR      3.4     0.4    -      -       -      -
    232Y  PHE*     1.4    75.2    -      +       -      +
    234Y  VAL*     1.4    61.2    +      -       +      +
    236Y  PHE*     3.1    25.0    +      +       +      +
    237Y  VAL*     3.3    12.7    -      -       -      +
    388Y  PRO*     5.4     0.6    -      -       -      +
    391Y  MET*     3.7    24.2    -      -       +      -
    392Y  ARG*     3.5    47.1    -      -       +      +
    395Y  MET*     4.5    15.0    -      -       +      -
    396Y  LYS      3.3    24.9    -      -       -      -
    397Y  VAL*     3.9    21.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 234 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    482E  THR*     4.0    26.9    -      -       +      +
    199Y  LEU*     4.1    23.6    -      -       +      -
    230Y  VAL*     3.1    19.7    +      -       +      +
    231Y  THR*     3.3     6.0    +      -       -      +
    233Y  PHE*     1.4    75.9    -      -       +      +
    235Y  VAL*     1.3    60.9    +      -       -      +
    237Y  VAL*     3.6    14.3    -      -       +      +
    238Y  GLU*     3.5    21.1    +      -       +      +
    399Y  PHE*     6.3     0.2    -      -       +      -
    406Y  LEU*     5.5     7.0    -      -       +      +
    410Y  VAL*     3.8    32.9    -      -       +      +
    413Y  ILE*     6.4     1.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 235 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    475E  THR*     4.7    19.3    -      -       +      +
    478E  VAL*     4.5    14.4    -      -       +      -
    479E  ALA*     4.0    32.5    -      -       +      +
    482E  THR*     4.7    13.5    -      -       +      +
    231Y  THR*     2.7    29.5    +      -       -      +
    232Y  PHE*     4.0    10.5    -      -       +      +
    234Y  VAL*     1.3    73.4    -      -       -      +
    236Y  PHE*     1.3    51.6    +      -       -      +
    238Y  GLU*     2.9     8.4    +      -       +      +
    239Y  ARG*     2.7    37.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 236 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232Y  PHE*     2.9    39.0    +      +       +      +
    233Y  PHE*     3.1    13.6    +      +       +      +
    235Y  VAL*     1.3    75.2    -      -       -      +
    237Y  VAL*     1.3    58.0    +      -       -      +
    239Y  ARG*     3.7    14.8    -      -       +      +
    240Y  GLY*     3.5    15.6    +      -       -      -
    387Y  ILE*     4.1    15.0    -      -       +      -
    388Y  PRO*     3.8    30.1    -      -       +      +
    391Y  MET*     3.6    50.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 237 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    233Y  PHE      3.3    16.8    -      -       -      +
    234Y  VAL*     3.6    15.3    -      -       +      +
    236Y  PHE*     1.3    75.6    -      -       -      +
    238Y  GLU*     1.3    61.1    -      -       -      +
    240Y  GLY*     3.5    10.0    +      -       -      -
    241Y  GLN*     3.9    15.6    +      -       -      +
    270Y  ASN*     5.2     1.4    +      -       -      -
    388Y  PRO*     4.2    23.1    -      -       +      +
    392Y  ARG*     5.8     2.5    -      -       -      +
    406Y  LEU      5.0     9.0    -      -       -      +
    407Y  LEU*     4.1    25.1    -      -       +      -
    410Y  VAL*     4.1    23.8    -      -       +      -
    411Y  VAL*     5.4     4.0    -      -       +      -
    414Y  MET*     4.6     7.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 238 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    478E  VAL*     3.9    35.9    -      -       +      +
    481E  VAL*     6.0     2.8    -      -       -      +
    482E  THR*     4.4    15.6    +      -       -      +
    234Y  VAL*     3.5    13.0    +      -       +      +
    235Y  VAL*     2.9    13.7    +      -       -      +
    237Y  VAL*     1.3    73.8    -      -       -      +
    239Y  ARG*     1.3    63.8    +      -       -      +
    241Y  GLN*     3.3    23.6    -      -       -      +
    268Y  LYS*     2.7    37.0    +      -       -      +
    410Y  VAL*     5.2     2.9    -      -       +      +
    413Y  ILE*     5.7     3.1    -      -       -      +
    414Y  MET*     3.4    32.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 239 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    469E  GLN      3.4    20.4    +      -       -      +
    470E  GLU*     2.7    60.0    +      -       -      +
    471E  THR*     3.4     4.4    +      -       -      +
    474E  THR*     3.0    30.2    +      -       -      -
    475E  THR*     3.1    16.6    +      -       -      +
    478E  VAL*     4.9     4.6    -      -       +      +
    235Y  VAL*     2.7    24.2    +      -       +      +
    236Y  PHE*     3.7    18.2    -      -       +      +
    237Y  VAL      3.4     0.2    -      -       -      -
    238Y  GLU*     1.3    72.9    +      -       -      +
    240Y  GLY*     1.3    60.2    +      -       -      +
    241Y  GLN      3.2    13.2    +      -       -      +
    243Y  ARG*     4.2    18.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 240 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    469E  GLN*     5.7     3.4    -      -       -      +
    236Y  PHE      3.5     6.5    +      -       -      -
    237Y  VAL      3.5     8.4    +      -       -      -
    238Y  GLU      3.3     1.2    -      -       -      -
    239Y  ARG*     1.3    73.7    -      -       -      +
    241Y  GLN*     1.3    62.8    +      -       -      +
    242Y  ARG*     3.7     3.3    +      -       -      +
    269Y  VAL*     5.2     0.3    -      -       -      +
    270Y  ASN*     3.0    21.3    +      -       -      +
    380Y  TYR*     4.8     3.6    +      -       -      -
    384Y  ILE*     5.0     8.6    -      -       -      +
----------------------------------------------------------
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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