Contacts of the helix formed by residues 518 - 538 (chain C) in PDB entry 1K0Y


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 THR 518 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    515C  ALA      3.8    15.3    -      -       -      +
    516C  GLU*     2.8    16.4    +      -       -      +
    517C  PHE*     1.4    75.3    -      -       -      +
    519C  PRO*     1.3    77.7    -      -       +      +
    520C  ALA*     3.7     7.2    +      -       -      +
    521C  VAL*     3.2    24.8    +      -       +      +
    522C  HIS*     2.9    20.4    +      -       -      +
    630D  ARG*     3.7     1.6    -      -       -      +
    716D  HIS*     5.7     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 519 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    518C  THR*     1.3    86.3    -      -       -      +
    520C  ALA*     1.4    56.9    +      -       -      +
    522C  HIS*     3.3     4.0    -      -       +      +
    523C  ALA*     3.0    27.9    +      -       -      +
    626D  GLU*     5.0     1.3    -      -       -      +
    630D  ARG*     3.8    35.2    -      -       +      +
    633D  VAL*     4.0    18.5    -      -       +      +
    634D  VAL*     4.2     2.1    -      -       +      +
    651D  PRO*     4.9     5.4    -      -       +      -
    655D  MET*     3.9    41.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 520 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    409C  ASN*     3.8    11.6    +      -       -      +
    518C  THR*     3.2     7.0    +      -       -      +
    519C  PRO*     1.4    75.5    -      -       -      +
    521C  VAL*     1.4    61.2    +      -       +      +
    523C  ALA*     3.4     7.3    +      -       -      +
    524C  SER*     3.1    29.8    +      -       -      -
    633D  VAL*     4.9     0.2    -      -       -      -
    651D  PRO*     4.4    25.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 521 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    409C  ASN*     4.0    33.7    -      -       +      +
    412C  ALA*     6.4     0.9    -      -       +      -
    413C  ALA*     4.0    18.2    -      -       +      +
    513C  LEU*     6.3     0.4    -      -       +      -
    516C  GLU*     3.5    26.9    -      -       +      +
    517C  PHE*     4.6     3.6    -      -       -      -
    518C  THR*     3.2    18.2    +      -       +      +
    520C  ALA*     1.4    74.7    -      -       +      +
    522C  HIS*     1.4    55.2    +      -       -      +
    524C  SER*     3.2     2.1    +      -       -      -
    525C  LEU*     2.8    54.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 522 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    506C  LEU*     4.2    14.9    -      -       +      +
    517C  PHE*     3.5    27.0    -      +       +      -
    518C  THR      2.9    12.5    +      -       -      +
    519C  PRO      3.3    10.5    -      -       -      +
    521C  VAL*     1.4    76.8    -      -       -      +
    523C  ALA*     1.4    56.7    +      -       -      +
    525C  LEU*     3.9     1.6    -      -       -      +
    526C  ASP*     2.9    25.6    +      -       -      +
    630D  ARG*     3.2    38.7    +      -       +      +
    634D  VAL*     3.7    26.6    -      -       +      +
    635D  TYR*     5.4     1.8    +      -       -      -
    709D  VAL*     4.8    12.7    -      -       +      +
    712D  CYS*     4.0    33.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 523 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141A  ARG*     4.5     2.1    +      -       -      +
    406C  ASP*     5.9     0.4    -      -       -      +
    519C  PRO      3.0    12.9    +      -       -      +
    520C  ALA*     3.7     9.0    -      -       -      +
    521C  VAL      3.3     0.2    -      -       -      -
    522C  HIS*     1.4    74.6    -      -       -      +
    524C  SER*     1.4    63.6    +      -       -      +
    526C  ASP*     3.3     3.6    +      -       -      +
    527C  LYS*     3.0    30.4    +      -       +      +
    633D  VAL*     4.3    12.8    -      -       +      +
    634D  VAL*     3.9    32.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 524 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    402C  LEU*     4.6     1.6    -      -       -      +
    406C  ASP*     2.8    37.7    +      -       -      -
    409C  ASN*     2.9    44.1    +      -       -      -
    410C  VAL*     3.9     4.9    -      -       -      +
    520C  ALA      3.1    10.4    +      -       -      -
    521C  VAL      3.2     2.0    +      -       -      -
    523C  ALA*     1.4    76.3    -      -       -      +
    525C  LEU*     1.4    57.3    +      -       -      +
    527C  LYS*     3.2     5.2    +      -       -      +
    528C  PHE*     2.9    28.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 525 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    410C  VAL*     4.4    22.9    -      -       +      +
    413C  ALA*     4.2    20.0    -      -       +      -
    414C  TRP*     5.3     6.7    -      -       +      -
    506C  LEU*     3.6    16.6    -      -       +      -
    509C  LEU*     3.8    29.8    -      -       +      -
    513C  LEU*     5.8     1.1    -      -       +      -
    517C  PHE*     4.0    19.3    -      -       +      -
    521C  VAL*     2.8    42.4    +      -       +      +
    522C  HIS      3.9     1.3    -      -       -      +
    524C  SER*     1.4    71.7    -      -       -      +
    526C  ASP*     1.4    57.4    +      -       -      +
    528C  PHE*     3.2    11.3    +      -       +      +
    529C  LEU*     2.9    35.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 526 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141A  ARG*     2.8    35.2    +      -       -      +
    502C  SER*     5.4     5.0    -      -       -      -
    503C  HIS*     6.0     0.2    -      -       -      -
    506C  LEU*     3.2    26.9    -      -       +      +
    522C  HIS      2.9    18.7    +      -       -      +
    523C  ALA      3.7     4.3    -      -       -      +
    525C  LEU*     1.4    77.4    -      -       -      +
    527C  LYS*     1.4    61.4    +      -       -      +
    529C  LEU*     3.4     5.3    +      -       -      +
    530C  ALA*     3.1    19.1    +      -       -      +
    634D  VAL*     4.1     6.3    -      -       +      -
    635D  TYR*     2.8    27.1    +      -       -      -
    802D  CNO      4.2     5.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 527 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141A  ARG*     2.9    66.5    +      -       +      +
    401C  VAL      2.8    29.9    +      -       -      +
    402C  LEU*     3.8     9.0    -      -       +      -
    403C  SER*     4.4     3.0    +      -       -      +
    406C  ASP*     2.7    35.1    +      -       -      +
    523C  ALA*     3.0    20.0    +      -       +      +
    524C  SER      3.5     7.4    -      -       -      +
    526C  ASP*     1.4    73.2    -      -       -      +
    528C  PHE*     1.4    62.6    +      -       -      +
    530C  ALA*     3.3     4.6    +      -       -      +
    531C  SER*     3.0    25.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 528 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    402C  LEU*     3.9    25.3    -      -       +      +
    410C  VAL*     3.7    26.5    -      -       +      -
    414C  TRP*     5.7     5.6    -      +       -      -
    466C  LEU*     4.2    10.8    -      -       +      -
    469C  ALA*     4.1     6.5    -      -       +      -
    470C  VAL*     3.6    34.1    -      -       +      -
    473C  VAL*     4.0    19.5    -      -       +      -
    476C  MET*     4.2     9.9    -      -       +      -
    524C  SER      2.9    14.2    +      -       -      +
    525C  LEU*     3.2    14.1    +      -       +      +
    527C  LYS*     1.4    75.5    -      -       -      +
    529C  LEU*     1.4    73.8    +      -       +      +
    531C  SER*     3.1     6.4    +      -       -      -
    532C  VAL*     2.9    52.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 529 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    414C  TRP*     6.4     2.0    -      -       +      -
    466C  LEU*     4.7    13.7    -      -       +      -
    502C  SER*     3.4    46.2    +      -       -      +
    505C  LEU*     4.1    27.6    -      -       +      -
    506C  LEU*     3.9    25.6    -      -       +      +
    509C  LEU*     5.8     3.1    -      -       +      -
    525C  LEU*     2.9    18.4    +      -       +      +
    526C  ASP*     3.9     4.5    -      -       -      +
    528C  PHE*     1.4    92.9    -      -       +      +
    530C  ALA*     1.4    56.9    +      -       -      +
    532C  VAL*     3.5     5.7    +      -       +      +
    533C  SER*     2.8    33.4    +      -       -      -
    543C  HEM      5.4     3.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 530 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141A  ARG*     4.2    13.0    -      -       -      +
    499C  LYS*     5.8     3.4    -      -       -      +
    502C  SER*     5.5     0.8    -      -       -      -
    526C  ASP      3.1    17.9    +      -       -      +
    527C  LYS*     3.3     5.4    +      -       -      +
    529C  LEU*     1.4    74.3    -      -       -      +
    531C  SER*     1.4    50.9    +      -       -      +
    533C  SER*     3.4     7.8    +      -       -      -
    534C  THR*     2.8    40.2    +      -       -      +
    802D  CNO      4.4    24.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 531 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    401C  VAL*     5.8     2.8    +      -       -      -
    402C  LEU*     4.3    13.0    +      -       -      +
    476C  MET*     3.8    21.8    -      -       -      -
    527C  LYS      3.0    16.4    +      -       -      -
    528C  PHE*     3.4     9.2    -      -       -      -
    530C  ALA*     1.4    72.8    -      -       -      +
    532C  VAL*     1.4    64.7    +      -       -      +
    534C  THR*     3.2     7.6    +      -       -      -
    535C  VAL*     3.0    29.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 532 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    466C  LEU*     4.1    20.6    -      -       +      -
    469C  ALA*     4.2     7.0    -      -       +      -
    476C  MET*     3.8    19.3    -      -       -      -
    480C  LEU*     4.2    11.2    -      -       +      -
    528C  PHE*     2.9    47.4    +      -       +      +
    529C  LEU*     3.8     6.7    -      -       +      +
    531C  SER*     1.4    73.7    -      -       -      +
    533C  SER*     1.4    58.6    +      -       -      +
    535C  VAL*     3.2     6.8    +      -       -      +
    536C  LEU*     2.9    45.9    +      -       +      +
    543C  HEM      4.3     9.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 533 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    498C  PHE*     3.6    35.2    +      -       -      +
    499C  LYS*     5.6     1.5    -      -       -      -
    502C  SER*     3.5    15.2    +      -       -      -
    529C  LEU      2.8    22.3    +      -       -      -
    530C  ALA*     3.5     8.9    -      -       -      -
    532C  VAL*     1.4    77.6    -      -       -      +
    534C  THR*     1.4    58.5    +      -       -      +
    536C  LEU*     3.4     2.3    +      -       -      +
    537C  THR*     3.0    32.8    +      -       -      +
    543C  HEM      5.3     4.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 534 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134A  THR*     6.2     4.0    -      -       +      -
    530C  ALA*     2.8    27.2    +      -       -      +
    531C  SER*     3.2     9.8    +      -       -      -
    533C  SER*     1.4    71.8    -      -       -      +
    535C  VAL*     1.4    63.3    +      -       +      +
    537C  THR*     3.3     8.8    +      -       -      -
    538C  SER*     3.1    25.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 535 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    476C  MET*     4.0    22.2    -      -       +      +
    477C  PRO*     3.8    35.7    -      -       +      +
    480C  LEU*     4.0    21.3    -      -       +      -
    484C  SER*     3.1    19.1    +      -       -      +
    531C  SER*     3.0    16.6    +      -       -      +
    532C  VAL*     3.2     7.2    +      -       -      +
    534C  THR*     1.4    77.1    -      -       +      +
    536C  LEU*     1.4    61.2    +      -       -      +
    537C  THR      3.1     0.3    +      -       -      -
    538C  SER*     2.7    29.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 536 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    480C  LEU*     4.3    14.8    -      -       +      -
    483C  LEU*     3.7    33.0    -      -       +      +
    484C  SER*     3.8    28.3    -      -       -      +
    487C  HIS*     4.0     9.5    -      -       +      +
    498C  PHE*     3.9    19.7    -      -       +      -
    532C  VAL*     2.9    26.1    +      -       +      +
    533C  SER      4.0     2.2    -      -       -      +
    534C  THR      3.4     0.2    -      -       -      -
    535C  VAL*     1.4    73.8    -      -       -      +
    537C  THR*     1.4    58.9    +      -       -      +
    538C  SER      3.6     0.2    -      -       -      -
    539C  LYS      5.2     0.2    +      -       -      -
    540C  TYR*     3.5    15.1    -      -       -      -
    543C  HEM      3.5    52.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 537 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    495C  PRO*     4.4    12.7    -      -       +      +
    498C  PHE*     3.6    35.9    -      -       +      -
    533C  SER      3.0    17.8    +      -       -      +
    534C  THR*     3.4     8.4    +      -       -      -
    535C  VAL      3.1     1.0    -      -       -      -
    536C  LEU*     1.4    74.7    -      -       -      +
    538C  SER*     1.4    63.3    +      -       -      +
    539C  LYS      3.2     5.0    +      -       -      -
    540C  TYR*     3.3    34.4    +      -       +      +
    801D  CNO      3.6    25.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 538 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1A  VAL*     4.1    30.1    +      -       -      +
    484C  SER*     4.3     2.1    +      -       -      -
    534C  THR*     3.1    14.2    +      -       -      -
    535C  VAL*     2.7    26.1    +      -       -      +
    536C  LEU      3.6     0.2    -      -       -      -
    537C  THR*     1.4    76.2    -      -       -      +
    539C  LYS*     1.4    74.6    +      -       -      +
    540C  TYR      3.5     0.2    -      -       -      -
    541C  ARG      4.6     4.5    -      -       -      +
----------------------------------------------------------
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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).

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