Contacts of the helix formed by residues 424 - 436 (chain C) in PDB entry 1Y9D


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 VAL 424 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64C  MET*     3.9    19.7    -      -       +      +
     71C  LYS*     5.6     0.7    -      -       -      +
     96C  ASP*     4.6     8.5    -      -       -      +
    391C  SER*     3.3     4.3    +      -       -      -
    392C  ILE      3.6    21.5    -      -       -      +
    393C  ASP*     3.1     7.1    +      -       -      -
    394C  VAL*     4.4     0.9    -      -       +      -
    415C  THR*     4.3     4.0    -      -       -      +
    416C  SER*     3.8    23.3    -      -       -      +
    421C  THR*     3.7    38.6    -      -       +      +
    423C  GLY*     1.3    77.6    -      -       -      +
    425C  GLY*     1.3    60.0    +      -       -      +
    426C  ILE      3.4     0.2    -      -       -      -
    427C  PRO*     3.5     5.8    -      -       -      -
    428C  GLY*     2.8    29.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 425 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    391C  SER*     2.7    27.2    +      -       -      -
    392C  ILE      4.3     0.2    -      -       -      -
    393C  ASP*     3.0    27.2    +      -       -      -
    423C  GLY      3.3     0.2    -      -       -      -
    424C  VAL*     1.3    78.5    -      -       -      +
    426C  ILE*     1.3    61.8    +      -       -      +
    429C  ALA*     3.1    11.4    +      -       -      +
    443C  ASN*     3.2    22.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 426 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    393C  ASP*     4.7     0.8    +      -       -      -
    423C  GLY      4.0     1.2    +      -       -      -
    425C  GLY*     1.3    73.2    -      -       -      +
    427C  PRO*     1.3    66.2    -      -       +      +
    429C  ALA*     3.3     4.2    +      -       -      +
    430C  ILE*     3.0    44.8    +      -       +      +
    443C  ASN*     3.5    22.7    +      -       -      +
    450C  ALA*     4.0    15.3    -      -       +      +
    453C  THR*     3.3    34.5    +      -       -      +
    454C  MET*     3.8     8.1    -      -       +      -
    456C  ASP*     3.8    24.9    -      -       +      +
    457C  LEU*     3.8    26.7    -      -       +      -
    460C  GLN*     4.0     7.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 427 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61C  VAL*     3.6    32.3    -      -       +      +
     64C  MET*     3.6    29.8    -      -       +      -
     65C  ALA*     3.7    12.6    -      -       +      +
    423C  GLY      3.0    29.2    -      -       -      +
    424C  VAL*     3.3     8.7    -      -       -      +
    426C  ILE*     1.3    88.1    -      -       +      +
    428C  GLY*     1.3    64.6    +      -       -      +
    430C  ILE*     3.2    11.8    +      -       +      +
    431C  ALA*     2.9    19.9    +      -       -      +
    453C  THR*     4.1     3.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 428 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64C  MET      5.2     0.2    +      -       -      -
     68C  ALA*     3.7    22.5    -      -       -      +
     72C  LEU*     4.6     0.2    -      -       -      +
    391C  SER*     3.2    18.2    -      -       -      -
    414C  ILE*     4.3     8.3    -      -       -      +
    424C  VAL*     2.8    17.8    +      -       -      -
    427C  PRO*     1.3    72.9    -      -       -      +
    429C  ALA*     1.3    57.1    +      -       -      +
    431C  ALA*     3.3     3.3    +      -       -      +
    432C  ALA*     2.8    29.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 429 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    391C  SER*     3.3     6.8    +      -       -      -
    425C  GLY      3.1    17.8    +      -       -      +
    426C  ILE*     3.6     4.5    -      -       -      +
    428C  GLY*     1.3    74.9    -      -       -      +
    430C  ILE*     1.3    64.4    +      -       -      +
    433C  LYS*     3.1    26.5    +      -       -      +
    441C  VAL*     3.7    17.6    -      -       +      +
    442C  PHE      4.2     0.2    -      -       -      +
    443C  ASN*     3.8     9.6    -      -       +      -
    460C  GLN*     4.7     0.9    -      -       -      +
    467C  VAL*     3.5    33.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 430 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30C  TYR*     4.3    13.2    -      -       +      -
     54C  ILE*     4.9     1.8    -      -       +      -
     56C  VAL*     6.1     0.7    -      -       +      -
     61C  VAL*     4.5     5.8    -      -       +      -
     65C  ALA*     4.9     1.3    -      -       +      -
    426C  ILE*     3.0    31.0    +      -       +      +
    427C  PRO*     3.6    11.7    -      -       +      +
    429C  ALA*     1.3    76.5    -      -       -      +
    431C  ALA*     1.3    64.1    +      -       -      +
    433C  LYS*     4.0     1.9    -      -       -      +
    434C  LEU*     3.1    35.3    +      -       +      +
    456C  ASP*     3.6    28.3    -      -       +      +
    459C  THR*     4.1    21.8    -      -       +      -
    460C  GLN*     3.7    18.6    -      -       +      -
    465C  LEU*     3.7    21.8    -      -       +      +
    467C  VAL*     4.6     2.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 431 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30C  TYR*     3.7    12.8    -      -       -      +
     65C  ALA*     3.4    20.8    -      -       -      +
     68C  ALA*     3.8    11.7    -      -       +      -
     69C  ASP*     3.4    20.6    -      -       -      +
     72C  LEU*     4.6     0.9    -      -       +      -
    427C  PRO      2.9    12.5    +      -       -      +
    428C  GLY      3.7     7.0    -      -       -      +
    430C  ILE*     1.3    78.1    -      -       -      +
    432C  ALA*     1.3    53.8    +      -       -      +
    434C  LEU*     3.1     2.2    +      -       -      +
    435C  ASN*     2.6    39.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 432 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72C  LEU*     3.6    17.9    -      -       +      +
    389C  ILE*     3.7    31.0    -      -       +      -
    391C  SER*     5.8     0.2    -      -       -      -
    414C  ILE*     4.9     1.3    -      -       +      -
    428C  GLY      2.8    20.5    +      -       -      +
    429C  ALA*     3.3     4.7    +      -       -      +
    431C  ALA*     1.3    72.8    -      -       -      +
    433C  LYS*     1.3    57.7    +      -       -      +
    435C  ASN*     3.2     1.6    +      -       -      +
    436C  TYR*     2.8    37.1    +      -       -      +
    441C  VAL*     3.8    17.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 433 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    429C  ALA      3.1    16.0    +      -       -      +
    430C  ILE      4.0     2.5    -      -       -      +
    432C  ALA*     1.3    77.4    -      -       -      +
    434C  LEU*     1.3    62.7    +      -       -      +
    436C  TYR      4.1     4.7    -      -       -      -
    437C  PRO*     3.3    44.6    +      -       +      +
    439C  ARG      2.7    29.8    +      -       -      -
    440C  GLN*     3.9     3.6    -      -       -      +
    441C  VAL*     3.9    22.2    -      -       +      +
    465C  LEU*     4.1    23.4    -      -       +      +
    466C  PRO*     3.4    54.7    +      -       +      +
    467C  VAL*     4.4     2.5    -      -       +      +
    533C  ALA      4.7     3.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 434 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27C  ASP*     4.4     7.8    -      -       -      +
     28C  HIS*     3.7    28.2    -      -       +      +
     30C  TYR*     3.6    33.2    -      -       +      +
     52C  HIS*     6.4     0.4    -      -       +      -
     54C  ILE*     3.9    28.5    -      -       +      -
    430C  ILE*     3.1    27.3    +      -       +      +
    431C  ALA      3.1     4.9    +      -       -      +
    433C  LYS*     1.3    78.0    -      -       -      +
    435C  ASN*     1.3    63.5    +      -       -      +
    437C  PRO*     4.3     8.5    -      -       -      +
    463C  TYR*     5.3     2.5    -      -       +      -
    465C  LEU*     3.7    26.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 435 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27C  ASP*     5.9     0.3    -      -       -      +
     28C  HIS*     3.4    15.2    -      -       -      -
     69C  ASP*     2.8    32.1    +      -       -      +
     72C  LEU*     4.2     5.7    -      -       -      +
     73C  THR*     3.5    21.9    +      -       +      +
    431C  ALA*     2.6    29.7    +      -       -      +
    434C  LEU*     1.3    81.2    -      -       -      +
    436C  TYR*     1.3    86.6    +      -       +      +
    437C  PRO*     3.7     6.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 436 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72C  LEU*     3.6    34.8    +      -       +      -
     73C  THR*     4.0    10.1    -      -       +      +
    389C  ILE*     3.3    26.9    -      -       +      -
    412C  ARG*     4.8     4.3    +      -       +      -
    432C  ALA*     2.8    22.3    +      -       -      +
    433C  LYS*     3.4     8.0    -      -       -      +
    435C  ASN*     1.3    99.1    -      -       +      +
    437C  PRO*     1.3    67.3    -      -       -      +
    438C  GLU      3.1     2.7    -      -       -      +
    439C  ARG*     3.1    58.4    +      -       +      +
    441C  VAL*     4.9     0.6    -      -       +      +
----------------------------------------------------------
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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