Contacts of the helix formed by residues 295 - 308 (chain B) in PDB entry 2Z1Z


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 PRO 295 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    286B  LYS      5.0     6.3    -      -       -      +
    288B  LEU      3.7     8.1    -      -       -      +
    289B  LEU*     3.9    13.9    -      -       +      -
    293B  GLY      3.6     4.9    -      -       -      +
    294B  PHE*     1.4   107.3    -      -       +      +
    296B  VAL*     1.3    68.8    +      -       -      +
    297B  ALA*     4.5     4.9    -      -       +      +
    298B  LYS*     3.1    37.3    +      -       +      +
    299B  ASP      3.5     0.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 296 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138B  MET*     3.8    16.7    -      -       +      +
    233B  ILE*     4.2     8.3    -      -       +      -
    263B  MET*     3.5    32.3    -      -       +      -
    284B  ILE*     4.3     3.1    -      -       +      -
    288B  LEU*     3.0    39.1    +      -       +      +
    289B  LEU      4.0     9.0    -      -       -      -
    290B  TYR*     3.9    35.2    -      -       +      +
    294B  PHE      3.4     0.6    +      -       -      -
    295B  PRO*     1.3    70.1    -      -       -      +
    297B  ALA*     1.3    61.4    +      -       -      +
    299B  ASP*     2.9    15.9    +      -       -      +
    300B  PHE*     3.1    10.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 297 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121B  ASP*     6.0     1.1    -      -       -      +
    123B  PHE*     4.0    14.0    -      -       +      -
    284B  ILE*     3.8    34.4    -      -       +      +
    285B  PRO      4.7     5.4    -      -       -      +
    286B  LYS*     5.8     2.9    -      -       +      -
    288B  LEU      4.7     0.6    +      -       -      -
    295B  PRO*     3.1     5.6    +      -       +      -
    296B  VAL*     1.3    77.7    -      -       -      +
    298B  LYS*     1.3    51.6    +      -       +      +
    300B  PHE*     3.4     7.9    +      -       -      +
    301B  ASN*     2.7    35.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 298 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    294B  PHE*     3.6    29.5    -      -       +      -
    295B  PRO*     3.1    28.1    +      -       +      +
    297B  ALA*     1.3    74.8    -      -       +      +
    299B  ASP*     1.3    67.0    +      -       -      +
    301B  ASN*     3.3     6.6    +      -       -      +
    302B  ARG*     3.1    21.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 299 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  ARG*     2.8    56.3    +      -       -      +
     27A  ASN*     4.6     0.7    +      -       -      +
     30A  MET*     3.5    27.3    -      -       +      +
    138B  MET*     3.7    18.8    -      -       +      +
    290B  TYR*     3.5    11.5    +      -       +      -
    294B  PHE*     3.2     9.6    -      -       -      -
    295B  PRO      3.5     1.8    +      -       -      -
    296B  VAL      2.9     9.1    +      -       -      +
    298B  LYS*     1.3    76.5    -      -       -      +
    300B  PHE*     1.3    63.7    +      -       -      +
    302B  ARG*     3.1     7.6    +      -       -      +
    303B  ILE*     3.0    23.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 300 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123B  PHE*     3.7    22.7    -      +       +      -
    131B  ASP*     4.4     7.6    -      -       -      -
    134B  ARG*     4.1    14.1    -      -       +      -
    135B  LEU*     3.5    44.4    -      -       +      -
    138B  MET*     3.4    17.2    -      -       +      -
    282B  THR*     3.1    34.5    -      -       +      -
    284B  ILE*     3.5    26.0    -      -       +      -
    296B  VAL      3.1     6.3    +      -       -      +
    297B  ALA      3.5     7.9    -      -       -      +
    299B  ASP*     1.3    75.2    -      -       -      +
    301B  ASN*     1.3    61.8    +      -       -      +
    303B  ILE*     3.3     5.0    +      -       +      +
    304B  ILE*     3.0    48.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 301 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40A  PRO*     6.2     0.8    -      -       -      +
     98B  GLN*     4.1    16.2    +      -       -      +
    123B  PHE*     3.6    23.5    -      -       +      -
    297B  ALA      2.7    21.1    +      -       -      +
    298B  LYS*     3.7     8.1    -      -       -      +
    299B  ASP      3.2     0.4    -      -       -      -
    300B  PHE*     1.3    72.6    -      -       -      +
    302B  ARG*     1.3    59.4    +      -       -      +
    304B  ILE*     3.4     4.5    +      -       -      +
    305B  CYS*     3.0    46.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 302 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30A  MET*     3.8    20.2    -      -       +      -
     33A  LEU*     3.7    26.9    -      -       +      +
     34A  GLN      5.4     0.4    -      -       -      +
     35A  ALA      2.9    23.4    +      -       -      -
     36A  GLY*     3.4    10.6    +      -       -      -
     37A  TYR*     3.1    26.1    -      -       -      +
    157A  ASP*     3.1    32.9    +      -       -      +
    161A  ILE*     4.6     1.3    -      -       +      +
    175A  TYR*     5.4     1.4    +      -       -      -
    298B  LYS      3.1    13.6    +      -       -      +
    299B  ASP*     3.1    10.3    +      -       -      +
    301B  ASN*     1.3    77.1    -      -       -      +
    303B  ILE*     1.3    54.9    +      -       -      +
    305B  CYS*     3.4     4.2    +      -       -      +
    306B  THR*     2.7    69.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 303 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30A  MET*     3.9    13.5    -      -       +      -
    161A  ILE*     3.8    39.5    -      -       +      -
    134B  ARG*     3.8    40.4    -      -       +      +
    137B  VAL*     4.0    12.8    -      -       +      -
    138B  MET*     3.8    22.9    -      -       +      +
    299B  ASP      3.0    19.6    +      -       -      +
    300B  PHE*     3.6    10.1    -      -       +      +
    302B  ARG*     1.3    66.1    -      -       -      +
    304B  ILE*     1.3    68.8    +      -       +      +
    305B  CYS      3.0     1.7    +      -       -      -
    306B  THR      3.2     0.5    +      -       -      -
    307B  CYS*     2.9    35.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 304 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97B  GLU*     3.4    38.7    -      -       +      +
     98B  GLN*     4.0     7.6    -      -       -      +
    123B  PHE*     4.8     9.9    -      -       +      -
    124B  VAL      5.8     0.9    -      -       -      +
    125B  SER*     5.8     2.9    -      -       -      -
    131B  ASP*     5.5     2.5    -      -       -      +
    134B  ARG*     3.2    39.3    -      -       +      +
    300B  PHE*     3.0    50.2    +      -       +      +
    301B  ASN*     3.9     7.2    -      -       -      +
    303B  ILE*     1.3    77.1    -      -       -      +
    305B  CYS*     1.3    59.9    +      -       -      +
    306B  THR      3.6     0.2    +      -       -      -
    308B  PHE*     3.2    39.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with CYS 305 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A  TYR*     3.2    13.2    -      -       +      -
     40A  PRO*     3.6    32.8    -      -       +      -
    129A  LYS*     2.6    28.8    +      -       -      -
     97B  GLU*     3.5    20.5    -      -       -      +
     98B  GLN*     5.9     1.1    -      -       -      -
    301B  ASN*     3.0    35.2    +      -       -      +
    302B  ARG*     3.8     7.4    -      -       -      +
    303B  ILE      3.0     0.8    -      -       -      -
    304B  ILE*     1.3    82.4    -      -       -      +
    306B  THR*     1.3    58.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 306 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A  TYR*     3.8    22.7    -      -       +      -
    129A  LYS*     3.4    24.0    -      -       -      +
    133A  SER*     4.4     2.6    +      -       -      -
    154A  ALA*     4.2    13.7    +      -       -      +
    157A  ASP*     4.0    10.5    -      -       -      +
    158A  SER*     4.7     1.7    +      -       -      -
    161A  ILE*     3.7    21.5    -      -       +      +
    302B  ARG*     2.7    65.1    +      -       +      +
    303B  ILE      3.2     0.8    +      -       -      +
    305B  CYS*     1.3    79.7    -      -       -      +
    307B  CYS*     1.3    57.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 307 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129A  LYS      3.8     7.9    -      -       -      +
    130A  CYS*     3.8    17.2    -      -       -      +
    133A  SER*     3.3    31.9    -      -       -      +
    158A  SER*     5.2     3.8    -      -       -      -
    161A  ILE*     3.8    24.9    -      -       -      -
    134B  ARG*     4.4    11.5    +      -       +      -
    137B  VAL*     5.2     5.2    -      -       +      -
    303B  ILE*     2.9    31.1    +      -       +      +
    306B  THR*     1.3    89.1    -      -       -      +
    308B  PHE*     1.3    59.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 308 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126A  ASP*     3.7    16.8    -      -       -      -
    129A  LYS*     2.8    23.2    -      -       -      +
    130A  CYS*     3.9     7.4    -      -       -      -
     97B  GLU*     2.8    26.1    -      -       +      +
    124B  VAL      3.6    10.8    -      -       -      -
    125B  SER*     3.9     3.8    -      -       -      -
    126B  ASP*     3.4    35.7    -      -       -      -
    134B  ARG*     3.5    32.5    -      -       -      +
    304B  ILE*     3.2    31.3    +      -       +      +
    306B  THR      3.7     0.2    -      -       -      -
    307B  CYS*     1.3    75.3    -      -       -      +
    309B  ASN*     1.3    63.2    +      -       -      +
    310B  GLY*     3.1    26.9    -      -       -      -
    311B  ALA*     3.0    23.8    -      -       -      -
----------------------------------------------------------
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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