Contacts of the helix formed by residues 267 - 281 (chain C) in PDB entry 3OP5


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 ASP 267 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    264C  ASN*     3.3    37.0    +      -       -      +
    265C  LEU      3.3     0.6    -      -       -      -
    266C  LYS*     1.4    75.6    -      -       -      +
    268C  PRO*     1.4    65.1    -      -       -      +
    269C  LYS*     3.5    12.1    +      -       -      +
    270C  TYR*     3.3    26.3    +      -       +      +
    271C  VAL*     3.3    18.2    +      -       -      +
    221D  HIS      5.5     1.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 268 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221C  HIS*     3.5    35.4    +      -       +      +
    225C  ILE*     4.1    15.9    -      -       +      -
    233C  HIS*     4.1     0.7    +      -       -      -
    265C  LEU      4.6     1.3    -      -       -      +
    266C  LYS      3.4    12.1    -      -       -      +
    267C  ASP*     1.4    86.0    -      -       -      +
    269C  LYS*     1.3    55.9    +      -       -      +
    271C  VAL*     3.3     6.7    +      -       +      +
    272C  ARG*     3.0    27.2    +      -       -      +
    221D  HIS*     3.9    28.3    -      -       +      +
    225D  ILE*     4.5     5.6    -      -       +      -
    265D  LEU      6.0     0.4    -      -       -      +
    268D  PRO*     3.6    23.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 269 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221C  HIS*     4.6     3.4    -      -       -      +
    267C  ASP*     3.3     9.1    -      -       -      +
    268C  PRO*     1.3    71.1    -      -       +      +
    270C  TYR*     1.4    59.2    +      -       -      +
    272C  ARG*     3.2    37.9    +      -       -      +
    273C  ASP*     2.9    40.9    +      -       -      +
    218D  LYS      3.1    26.9    +      -       -      -
    220D  CYS      3.8    17.5    -      -       -      +
    221D  HIS      4.5     5.8    -      -       -      +
    222D  ASP*     3.1    35.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 270 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    260C  PRO      3.8    16.1    +      -       -      -
    261C  TRP*     3.8    24.8    -      -       +      -
    263C  ASP*     5.5     0.9    -      -       -      +
    264C  ASN*     3.6    39.9    -      -       +      -
    267C  ASP*     3.3    29.3    +      -       -      +
    269C  LYS*     1.4    76.3    -      -       -      +
    271C  VAL*     1.3    61.5    +      -       +      +
    273C  ASP*     3.8     5.1    -      -       -      +
    274C  SER*     2.9    43.5    +      -       -      -
    277C  ARG*     5.5     7.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 271 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225C  ILE*     3.5    33.4    -      -       +      +
    233C  HIS*     3.7    13.5    -      -       +      +
    261C  TRP*     3.8    20.8    -      -       +      +
    264C  ASN      3.4    24.2    -      -       -      +
    265C  LEU*     3.9    22.7    -      -       +      -
    267C  ASP      3.3     6.8    +      -       -      +
    268C  PRO      3.3     7.6    +      -       -      +
    270C  TYR*     1.3    78.1    -      -       +      +
    272C  ARG*     1.4    55.5    -      -       -      +
    274C  SER*     3.6     1.9    -      -       -      -
    275C  LYS*     3.1    39.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 272 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221C  HIS*     4.4     6.0    +      -       +      -
    230C  ILE*     4.7     1.9    -      -       +      +
    233C  HIS*     3.6    43.5    +      -       +      +
    234C  ASN*     3.6    22.8    +      -       -      +
    268C  PRO      3.0    14.2    +      -       -      +
    269C  LYS*     3.2    44.8    -      -       -      +
    270C  TYR      3.3     0.2    -      -       -      -
    271C  VAL*     1.4    74.6    -      -       -      +
    273C  ASP*     1.4    86.7    +      -       -      +
    275C  LYS*     3.2     6.1    +      -       -      +
    276C  ILE*     3.0    44.6    +      -       +      +
    217D  PRO      4.5     4.2    +      -       -      -
    218D  LYS*     3.6    29.9    +      -       -      +
    220D  CYS      5.7     0.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 273 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    269C  LYS*     2.9    27.5    +      -       -      +
    270C  TYR*     4.0     5.0    -      -       -      +
    272C  ARG*     1.4   104.8    +      -       -      +
    274C  SER*     1.3    55.7    +      -       -      +
    276C  ILE*     3.6    13.0    +      -       -      +
    277C  ARG*     3.1    28.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 274 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    260C  PRO*     4.8     0.3    -      -       -      +
    261C  TRP*     3.4    32.6    +      -       -      +
    270C  TYR*     2.9    32.3    +      -       -      -
    271C  VAL      3.6     5.4    -      -       -      -
    273C  ASP*     1.3    75.9    -      -       -      +
    275C  LYS*     1.3    54.7    +      -       -      +
    277C  ARG*     3.5    16.3    +      -       -      +
    278C  TYR*     3.1    47.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 275 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225C  ILE      2.9    24.7    +      -       -      -
    226C  GLU      3.4    17.9    +      -       -      -
    228C  THR      2.6    34.7    +      -       -      +
    230C  ILE*     3.6    11.3    -      -       +      +
    233C  HIS*     2.9    23.8    +      -       +      +
    245C  GLU*     4.8     1.1    -      -       -      +
    249C  TYR*     3.5    24.4    +      -       +      +
    261C  TRP*     3.5    36.3    -      -       +      +
    271C  VAL*     3.1    18.1    +      -       -      +
    272C  ARG      3.2     6.9    +      -       -      +
    274C  SER*     1.3    75.3    -      -       -      +
    276C  ILE*     1.4    57.7    +      -       -      +
    278C  TYR*     3.5     2.5    +      -       -      +
    279C  ARG*     3.0    30.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 276 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230C  ILE*     3.8    30.5    -      -       +      -
    234C  ASN*     4.7     7.0    -      -       -      +
    272C  ARG*     3.0    43.7    +      -       +      +
    273C  ASP*     3.8    13.5    -      -       -      +
    274C  SER      3.4     0.2    -      -       -      -
    275C  LYS*     1.4    73.8    -      -       -      +
    277C  ARG*     1.3    57.6    +      -       -      +
    279C  ARG*     3.3     5.3    +      -       -      +
    280C  GLU*     3.0    29.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 277 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    270C  TYR*     5.5     6.9    +      -       -      -
    273C  ASP      3.1    15.8    +      -       -      +
    274C  SER*     3.7    16.7    +      -       -      +
    276C  ILE*     1.3    76.7    -      -       -      +
    278C  TYR*     1.3   102.8    +      -       +      +
    280C  GLU*     3.4     8.2    +      -       -      +
    281C  ASN*     3.0    27.9    +      -       +      +
    284C  SER*     4.7     5.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 278 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    249C  TYR*     6.4     0.7    -      -       +      -
    260C  PRO*     3.5    23.2    -      -       +      +
    261C  TRP*     3.8    15.3    -      +       +      -
    274C  SER*     3.1    38.1    +      -       -      +
    275C  LYS      4.1     3.6    -      -       -      +
    276C  ILE      3.4     0.2    -      -       -      -
    277C  ARG*     1.3   106.8    +      -       -      +
    279C  ARG*     1.3    59.9    +      -       -      +
    281C  ASN      3.1    21.1    -      -       -      +
    282C  ILE*     3.3    11.4    +      -       -      +
    284C  SER*     3.6    28.0    -      -       -      -
    285C  LEU*     3.5    44.2    -      -       +      +
    288C  LYS*     3.5    25.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 279 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230C  ILE*     3.6    23.3    -      -       +      -
    241C  ARG*     4.4    10.3    -      -       -      +
    245C  GLU*     5.7     1.6    -      -       -      -
    249C  TYR*     5.5     1.6    -      -       -      +
    275C  LYS      3.0    18.2    +      -       -      +
    276C  ILE*     3.5     6.3    -      -       -      +
    278C  TYR*     1.3    73.7    -      -       -      +
    280C  GLU*     1.3    67.6    +      -       -      +
    281C  ASN      3.4     0.5    +      -       -      -
    282C  ILE*     3.5    12.6    -      -       +      +
    306C  VAL      5.1     0.8    +      -       -      -
    307C  LYS*     2.8    83.1    +      -       +      +
    309C  LEU      4.4     1.2    +      -       -      -
    366C  EDO      3.2    29.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 280 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    276C  ILE*     3.0    19.3    +      -       +      +
    277C  ARG*     3.6     9.4    -      -       -      +
    279C  ARG*     1.3    82.9    +      -       -      +
    281C  ASN*     1.3    58.6    +      -       +      +
    307C  LYS*     3.4    22.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 281 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    277C  ARG*     3.0    12.5    +      -       +      +
    278C  TYR      3.1    11.1    -      -       -      +
    280C  GLU*     1.3    78.3    -      -       +      +
    282C  ILE*     1.4    61.6    +      -       -      +
    283C  ALA*     3.7    12.6    +      -       -      +
    284C  SER*     2.7    53.9    +      -       -      +
    285C  LEU      3.4     2.3    +      -       -      -
----------------------------------------------------------
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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