Contacts of the helix formed by residues 304 - 315 (chain C) in PDB entry 6APL


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 304 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    303C  PRO*     1.3    75.7    -      -       -      +
    305C  THR*     1.3    61.4    +      -       -      +
    306C  GLY*     3.8     4.0    +      -       -      -
    307C  ALA*     2.9    13.7    +      -       -      +
    308C  LEU*     2.8    24.3    +      -       -      +
    325C  PHE*     5.6     0.5    -      -       -      -
    351C  HIS*     3.6    29.3    +      -       -      -
    353C  LEU*     4.5     9.0    -      -       -      +
    356C  GLU*     2.6    37.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 305 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178C  LEU*     3.8    16.2    -      -       +      -
    179C  ASN*     3.6    34.6    +      -       -      +
    198C  GLY*     3.9     1.6    -      -       -      -
    199C  PHE*     3.9    19.3    -      -       -      +
    200C  THR*     4.2    19.9    +      -       -      +
    203C  THR*     5.3     1.9    +      -       -      -
    230C  ILE*     4.7     8.6    -      -       +      +
    302C  MSE      5.4     1.9    -      -       -      +
    303C  PRO      3.7     1.2    +      -       -      -
    304C  SER*     1.3    72.0    -      -       -      +
    306C  GLY*     1.3    58.9    +      -       -      +
    308C  LEU*     3.0    15.0    +      -       +      +
    309C  MSE      2.9    31.7    +      -       +      +
    351C  HIS*     4.9     3.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 306 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    155C  GLY*     5.7     0.7    -      -       -      -
    178C  LEU*     3.8    25.8    -      -       -      +
    179C  ASN*     5.0     2.0    -      -       -      +
    304C  SER*     3.2     6.1    +      -       -      -
    305C  THR*     1.3    79.0    -      -       -      +
    307C  ALA*     1.3    55.7    +      -       -      +
    309C  MSE      4.0     0.7    -      -       -      +
    310C  LEU*     3.0    23.9    +      -       -      +
    325C  PHE*     3.2    28.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 307 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    288C  LEU*     4.1     5.6    -      -       +      -
    303C  PRO*     4.0    10.3    -      -       +      -
    304C  SER*     2.9    17.3    +      -       -      +
    306C  GLY*     1.3    72.6    -      -       -      +
    308C  LEU*     1.3    67.4    +      -       -      +
    310C  LEU*     3.9     0.3    -      -       -      +
    311C  LEU*     3.1    31.7    +      -       -      +
    325C  PHE*     4.0     1.2    -      -       -      -
    356C  GLU*     3.3    32.8    -      -       -      +
    360C  TRP*     3.8    20.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 308 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230C  ILE*     3.8    27.1    -      -       +      -
    275C  LEU*     4.0    20.4    -      -       +      +
    280C  ILE*     4.4    12.3    -      -       +      -
    283C  LEU*     4.6    17.7    -      -       +      +
    302C  MSE      3.6    27.8    -      -       +      -
    303C  PRO*     3.6    39.3    -      -       +      +
    304C  SER      2.8     8.4    +      -       -      +
    305C  THR*     3.0    15.2    +      -       -      +
    307C  ALA*     1.3    77.6    -      -       -      +
    309C  MSE      1.3    59.1    +      -       +      +
    311C  LEU*     3.9     1.4    -      -       +      +
    312C  THR*     2.8    34.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with MSE 309 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153C  VAL*     4.1     8.1    -      -       +      +
    176C  PHE*     3.4    35.5    -      -       +      -
    177C  ARG      4.1     5.2    -      -       -      +
    178C  LEU*     3.6    33.0    -      -       +      -
    196C  PHE*     4.1     5.2    -      -       +      -
    197C  TYR      4.1     0.2    -      -       -      -
    198C  GLY*     3.5    33.4    -      -       -      +
    228C  ILE*     3.5    37.0    -      -       +      -
    230C  ILE*     5.2     6.1    -      -       -      -
    275C  LEU*     6.0     0.2    -      -       -      -
    305C  THR*     2.9    20.3    +      -       +      +
    306C  GLY      4.0     0.9    -      -       -      +
    308C  LEU*     1.3    72.8    -      -       -      +
    310C  LEU*     1.3    60.7    +      -       -      +
    312C  THR*     3.3     6.8    +      -       -      +
    313C  ALA*     2.8    29.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 310 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153C  VAL*     3.8    18.7    -      -       +      +
    306C  GLY      3.0    17.0    +      -       -      +
    307C  ALA      3.9     3.1    -      -       -      +
    308C  LEU      3.4     0.2    -      -       -      -
    309C  MSE      1.3    76.5    -      -       -      +
    311C  LEU*     1.3    57.0    +      -       -      +
    313C  ALA*     3.1     5.9    +      -       -      +
    314C  LEU*     2.9    28.3    +      -       +      +
    320C  VAL*     3.9    23.8    -      -       +      -
    322C  ALA*     4.1    13.9    -      -       +      -
    325C  PHE*     3.7    26.7    -      -       +      -
    360C  TRP*     3.5    43.5    -      -       +      -
    369C  LEU*     4.2    14.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 311 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84C  PHE*     5.4     0.4    -      -       +      -
    279C  PHE*     4.6     1.1    -      -       -      -
    283C  LEU*     3.6    44.9    -      -       +      -
    287C  PHE*     4.5    19.7    -      -       +      -
    288C  LEU*     4.4    21.8    -      -       +      -
    303C  PRO*     5.8     0.4    -      -       +      -
    307C  ALA*     3.1    19.7    +      -       +      +
    308C  LEU*     5.3     1.6    -      -       +      -
    310C  LEU*     1.3    73.1    -      -       -      +
    312C  THR*     1.3    65.5    +      -       -      +
    314C  LEU*     3.1    23.0    +      -       +      +
    315C  HIS*     2.9    33.3    +      -       +      +
    359C  LEU*     4.2    19.5    -      -       +      -
    360C  TRP*     4.4     8.1    -      -       +      -
    363C  LEU*     4.6     2.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 312 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90C  VAL*     3.9    18.6    -      -       +      -
    137C  LEU*     4.0    23.6    -      -       +      -
    176C  PHE*     4.5     7.9    -      -       +      -
    228C  ILE*     5.0     6.7    -      -       +      +
    275C  LEU*     3.7    14.8    -      -       +      +
    279C  PHE*     3.5    24.3    -      -       -      -
    308C  LEU      2.8    25.5    +      -       -      -
    309C  MSE      3.3    10.6    +      -       -      +
    311C  LEU*     1.3    77.2    -      -       -      +
    313C  ALA*     1.3    61.2    +      -       -      +
    315C  HIS*     3.1     9.2    +      -       -      +
    316C  THR*     2.8    21.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 313 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    151C  CYS*     4.6     0.4    -      -       +      -
    153C  VAL*     3.5    28.5    -      -       +      -
    176C  PHE*     3.9    18.4    -      -       +      -
    309C  MSE      2.8     9.3    +      -       -      +
    310C  LEU      3.4     9.0    -      -       -      +
    312C  THR*     1.3    76.2    -      -       -      +
    314C  LEU*     1.3    58.8    +      -       -      +
    316C  THR*     3.7     6.3    -      -       -      -
    317C  CYS*     2.9    40.3    +      -       -      +
    320C  VAL*     3.3    12.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 314 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67C  ARG*     3.4    19.1    +      -       -      -
     70C  LEU*     3.7    13.4    -      -       +      +
     74C  ILE*     5.4     0.5    -      -       -      +
     84C  PHE*     4.5    17.3    -      -       +      -
     86C  LEU*     5.3     0.3    -      -       -      +
    310C  LEU*     2.9    23.7    +      -       +      +
    311C  LEU*     3.1    25.3    +      -       +      +
    313C  ALA*     1.3    76.2    -      -       -      +
    315C  HIS*     1.3    62.5    +      -       -      +
    316C  THR      3.4     0.2    -      -       -      -
    317C  CYS      4.6     0.4    -      -       -      -
    320C  VAL*     3.6    25.1    -      -       +      -
    360C  TRP*     5.4     0.7    -      -       +      -
    363C  LEU*     3.7    30.5    -      -       +      -
    368C  ILE*     3.6    37.9    -      -       +      +
    369C  LEU*     4.3     4.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 315 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67C  ARG*     4.4    12.5    +      -       -      +
     84C  PHE*     3.5    27.7    -      +       -      -
     85C  ASN      3.9    17.0    -      -       -      -
     86C  LEU*     4.5    16.2    -      -       +      +
     88C  ILE*     4.1     3.1    -      -       +      -
     90C  VAL*     4.2    18.0    -      -       +      +
    279C  PHE*     3.9    16.2    -      +       +      -
    282C  TYR*     2.6    40.4    +      +       -      -
    283C  LEU*     4.0    12.3    -      -       +      -
    287C  PHE*     4.5     2.9    -      +       -      -
    311C  LEU*     2.9    29.8    +      -       +      +
    312C  THR      3.1     5.1    +      -       -      +
    314C  LEU*     1.3    77.9    -      -       -      +
    316C  THR*     1.3    62.2    +      -       -      +
----------------------------------------------------------
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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