Contacts of the helix formed by residues 490 - 504 (chain A) in PDB entry 3NC0


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 490 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    483A  GLN*     3.5     4.4    +      -       -      +
    488A  GLU      3.6     1.2    +      -       -      -
    489A  TRP*     1.3    87.0    -      -       -      +
    491A  TRP*     1.3    66.8    +      -       -      +
    492A  LYS*     3.7     6.5    +      -       -      +
    493A  ASN*     3.2    29.1    +      -       -      -
    494A  LEU*     3.1    23.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 491 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    489A  TRP*     3.6    23.3    -      +       -      +
    490A  SER*     1.3    73.2    -      -       -      +
    492A  LYS*     1.3    63.4    +      -       -      +
    494A  LEU*     3.4     2.1    +      -       -      +
    495A  ASN*     3.0    35.7    +      -       -      +
    535A  ASP*     3.1    46.7    -      -       +      -
    536A  ASN*     2.9    32.0    +      -       -      +
    539A  ILE*     3.8    36.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 492 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    361A  GLU*     5.5     5.5    +      -       -      -
    490A  SER*     3.2     7.5    +      -       -      +
    491A  TRP*     1.3    80.5    -      -       -      +
    493A  ASN*     1.3    68.4    +      -       -      +
    495A  ASN*     3.5     8.5    +      -       -      +
    496A  THR*     2.9    27.9    +      -       -      +
    499A  TRP*     5.4     0.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 493 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    422A  SER      5.3     5.9    +      -       -      -
    479A  LYS*     6.2     2.9    -      -       -      +
    483A  GLN*     3.4    18.6    -      -       -      +
    488A  GLU*     3.7    16.5    -      -       +      +
    490A  SER*     3.2    17.5    +      -       -      +
    491A  TRP      3.4     0.2    -      -       -      -
    492A  LYS*     1.3    83.6    -      -       -      +
    494A  LEU*     1.3    61.3    +      -       -      +
    496A  THR*     2.9    10.2    +      -       -      -
    497A  LEU*     2.9    29.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 494 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    483A  GLN*     3.6    24.3    -      -       +      +
    489A  TRP*     3.5    28.5    -      -       +      -
    490A  SER      3.1    18.0    +      -       -      +
    491A  TRP      3.9     3.1    -      -       -      +
    493A  ASN*     1.3    76.6    -      -       -      +
    495A  ASN*     1.3    62.3    +      -       -      +
    497A  LEU*     3.5     8.1    +      -       +      +
    498A  CYS*     3.3    31.5    +      -       -      -
    524A  LEU*     4.4    16.6    -      -       +      -
    527A  LEU*     4.6     6.1    -      -       +      -
    539A  ILE*     4.2    11.4    -      -       +      -
    540A  ILE*     3.8    24.9    -      -       +      -
    543A  ASN*     3.2    16.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 495 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    491A  TRP*     3.0    28.2    +      -       -      +
    492A  LYS*     3.7     7.3    -      -       -      +
    494A  LEU*     1.3    76.4    -      -       -      +
    496A  THR*     1.3    58.0    +      -       -      +
    498A  CYS*     3.5     0.5    +      -       -      -
    499A  TRP*     2.8    64.3    +      -       +      +
    539A  ILE*     4.0    24.3    -      -       -      +
    543A  ASN*     3.1    31.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 496 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    421A  VAL      3.5    10.8    -      -       -      +
    422A  SER      3.5    19.1    +      -       -      +
    423A  ARG*     4.2     0.7    -      -       -      -
    424A  MET*     3.5    38.0    +      -       -      +
    492A  LYS*     2.9    18.4    +      -       -      +
    493A  ASN*     2.9    13.2    +      -       -      -
    495A  ASN*     1.3    76.7    -      -       -      +
    497A  LEU*     1.3    64.0    +      -       -      +
    499A  TRP*     3.6    15.4    -      -       -      +
    500A  ALA*     3.0    23.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 497 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    421A  VAL*     3.9    22.6    +      -       +      +
    476A  MET*     4.0    13.0    -      -       +      +
    479A  LYS*     3.5    31.6    -      -       +      +
    480A  LEU*     3.3    43.5    -      -       +      +
    483A  GLN*     4.6    10.1    -      -       +      -
    493A  ASN      2.9    14.3    +      -       -      +
    494A  LEU*     3.9    12.8    -      -       +      +
    495A  ASN      3.4     0.2    -      -       -      -
    496A  THR*     1.3    76.4    -      -       -      +
    498A  CYS*     1.3    60.5    +      -       -      +
    500A  ALA*     3.5     2.1    +      -       -      +
    501A  ILE*     3.0    45.9    +      -       +      +
    524A  LEU*     5.9     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 498 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    494A  LEU*     3.3    28.9    +      -       -      -
    495A  ASN      4.1     0.2    -      -       -      +
    497A  LEU*     1.3    79.5    -      -       -      +
    499A  TRP*     1.3    67.4    +      -       +      +
    501A  ILE*     3.7     9.7    -      -       -      +
    502A  GLY*     3.0    18.0    +      -       -      -
    524A  LEU*     4.3     9.9    -      -       -      -
    543A  ASN*     3.5    35.9    -      -       +      +
    546A  TYR*     3.6    13.4    -      -       +      -
    547A  ILE*     3.7    27.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with TRP 499 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    424A  MET*     3.6    32.3    -      -       +      +
    425A  ALA*     3.7     7.0    -      -       -      -
    426A  LYS*     3.7    37.9    -      -       +      -
    427A  PRO*     3.9    28.1    -      -       +      +
    454A  TYR*     4.8     2.1    -      -       +      -
    492A  LYS      5.4     0.4    -      -       -      -
    495A  ASN*     2.8    51.3    +      -       +      +
    496A  THR*     3.6    17.9    -      -       -      +
    498A  CYS*     1.3    78.4    -      -       +      +
    500A  ALA*     1.3    61.8    +      -       -      +
    502A  GLY*     3.3     2.4    +      -       -      -
    503A  SER*     3.0    23.6    +      -       -      -
    543A  ASN*     5.2     2.9    +      -       -      -
    546A  TYR*     4.1    23.1    +      +       -      -
----------------------------------------------------------
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Residues in contact with ALA 500 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    421A  VAL*     4.0    32.1    -      -       +      +
    424A  MET*     3.8    15.8    -      -       +      +
    461A  LEU*     4.0     1.7    -      -       +      +
    476A  MET*     3.8    16.2    -      -       +      +
    496A  THR      3.0    16.5    +      -       -      +
    497A  LEU      3.7     5.4    -      -       -      +
    499A  TRP*     1.3    74.9    -      -       -      +
    501A  ILE*     1.3    64.3    +      -       -      +
    503A  SER*     2.5    25.3    +      -       -      -
    504A  ILE*     3.6     5.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 501 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    476A  MET*     3.6    32.5    -      -       +      +
    480A  LEU*     4.7     6.1    -      -       +      -
    497A  LEU*     3.0    43.9    +      -       +      +
    498A  CYS*     3.7    10.5    -      -       -      +
    499A  TRP      3.4     0.2    -      -       -      -
    500A  ALA*     1.3    74.5    -      -       -      +
    502A  GLY*     1.3    58.9    +      -       -      +
    504A  ILE*     3.2    10.2    -      -       -      +
    516A  PHE*     3.7    25.4    -      -       +      -
    517A  LEU*     5.1     0.2    -      -       +      -
    520A  VAL*     3.9    25.6    -      -       +      -
    524A  LEU*     6.0     0.2    -      -       +      -
    547A  ILE*     4.4    24.9    -      -       +      -
    551A  TYR*     2.7    30.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 502 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    498A  CYS      3.0    14.8    +      -       -      -
    499A  TRP      3.8     3.6    -      -       -      -
    500A  ALA      3.2     0.2    -      -       -      -
    501A  ILE*     1.3    75.7    -      -       -      +
    503A  SER*     1.3    63.5    +      -       -      +
    504A  ILE      3.2     2.0    +      -       -      -
    505A  SER*     3.3    13.0    +      -       -      -
    546A  TYR*     4.3     5.2    -      -       -      -
    547A  ILE*     5.6     2.2    -      -       -      -
    550A  GLN*     3.0    43.2    +      -       -      -
    551A  TYR*     4.4     6.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 503 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    424A  MET*     3.8    10.3    -      -       -      +
    454A  TYR*     3.7    22.6    +      -       -      -
    458A  ARG*     3.0    48.1    -      -       -      +
    461A  LEU*     4.0     5.9    -      -       -      +
    462A  VAL*     3.9     5.2    -      -       -      +
    499A  TRP      3.0    12.5    +      -       -      -
    500A  ALA*     2.5    28.2    +      -       -      -
    502A  GLY*     1.3    77.2    -      -       -      +
    504A  ILE*     1.3    59.1    +      -       -      +
    505A  SER      3.4     1.6    +      -       -      +
    550A  GLN*     4.9     1.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 504 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    461A  LEU*     3.5    44.6    -      -       +      +
    462A  VAL*     4.0     8.5    -      -       +      -
    465A  THR*     4.0    11.2    -      -       +      +
    472A  THR*     4.1    11.0    -      -       +      -
    476A  MET*     3.7    26.9    -      -       +      -
    500A  ALA      3.8     1.6    -      -       -      +
    501A  ILE      3.2    16.4    -      -       -      +
    503A  SER*     1.3    79.1    -      -       -      +
    505A  SER*     1.3    67.8    +      -       -      +
    506A  GLY      3.1     0.2    +      -       -      -
    507A  ALA*     2.8    29.5    +      -       +      +
    508A  MET*     4.3    23.3    +      -       +      +
    516A  PHE*     4.6     4.0    -      -       +      -
    551A  TYR*     3.7     6.1    -      -       -      +
----------------------------------------------------------
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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