Contacts of the helix formed by residues 503 - 519 (chain F) in PDB entry 3CB4


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 ASN 503 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    164B  LYS      4.6     0.2    -      -       -      -
    424F  GLU*     6.2     0.2    -      -       -      -
    500F  HIS*     3.5     5.4    +      -       -      -
    501F  ARG      3.2     0.2    -      -       -      -
    502F  ASP*     1.3    88.9    +      -       -      +
    504F  SER*     1.3    55.0    +      -       -      +
    505F  GLN      3.3     2.0    -      -       -      +
    506F  ASN*     3.5    30.7    +      -       +      +
    507F  ARG*     2.7    67.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 504 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    164B  LYS      3.5     3.8    +      -       -      -
    165B  THR*     3.5    16.3    -      -       -      +
    481F  VAL*     3.4    27.9    -      -       -      +
    483F  VAL*     4.1     5.3    -      -       -      +
    499F  THR*     3.7    16.2    -      -       -      -
    500F  HIS      3.3     4.4    +      -       -      -
    501F  ARG      2.6    21.3    +      -       -      -
    503F  ASN*     1.3    74.4    -      -       -      +
    505F  GLN*     1.3    62.6    +      -       -      +
    507F  ARG*     3.8     1.2    -      -       -      +
    508F  GLY*     3.0    22.7    +      -       -      -
    532F  ILE*     4.3     7.4    -      -       -      -
    537F  ILE*     3.4    12.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 505 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18B  SER*     6.6     0.2    -      -       -      -
     23B  ARG*     3.2    33.6    +      -       +      +
     26B  GLN*     3.8    24.4    -      -       -      +
     27B  ILE*     5.6     1.2    -      -       -      +
    163B  ALA      4.2     8.0    +      -       -      +
    164B  LYS      3.2    18.8    +      -       -      +
    165B  THR      3.4    15.7    +      -       -      +
    166B  GLY*     3.4    19.6    +      -       -      -
    169B  VAL*     5.4     0.2    -      -       -      +
    504F  SER*     1.3    82.5    +      -       -      +
    506F  ASN*     1.3    62.3    +      -       +      +
    508F  GLY*     3.2     2.8    +      -       -      -
    509F  ARG*     3.2    19.6    +      -       -      +
    537F  ILE*     2.8    31.5    +      -       -      +
    538F  ALA*     4.8     0.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 506 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26B  GLN*     4.9     2.5    -      -       -      +
    503F  ASN*     3.3    36.6    +      -       +      +
    504F  SER      3.2     0.4    -      -       -      -
    505F  GLN*     1.3    84.2    -      -       +      +
    507F  ARG*     1.3    62.7    +      -       -      +
    509F  ARG*     3.3    26.5    +      -       -      +
    510F  GLU*     2.8    47.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 507 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    425F  LYS*     5.4     4.4    -      -       -      +
    426F  ARG*     5.4     1.0    -      -       -      +
    449F  GLU*     3.2    38.6    +      -       -      -
    452F  LEU*     5.9     8.0    -      -       +      +
    497F  LEU*     4.6    17.7    -      -       +      +
    499F  THR*     3.7    33.3    +      -       +      +
    500F  HIS*     4.7     8.7    +      -       -      +
    503F  ASN*     2.7    58.0    +      -       -      +
    504F  SER      4.0     4.7    -      -       -      +
    505F  GLN      3.3     0.2    -      -       -      -
    506F  ASN*     1.3    71.1    -      -       -      +
    508F  GLY*     1.3    59.5    +      -       -      +
    510F  GLU*     3.5    26.0    +      -       -      +
    511F  LEU*     3.1    29.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 508 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    483F  VAL*     4.5     6.0    -      -       -      +
    504F  SER      3.0    14.4    +      -       -      -
    505F  GLN      3.2     4.6    +      -       -      -
    507F  ARG*     1.3    76.4    -      -       -      +
    509F  ARG*     1.3    61.9    +      -       -      +
    511F  LEU*     3.3     5.3    +      -       -      +
    512F  VAL*     3.2    27.4    +      -       -      +
    530F  ALA*     3.9    18.8    -      -       -      +
    537F  ILE*     3.9     6.7    -      -       -      -
    538F  ALA*     4.0     6.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 509 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26B  GLN*     3.3    48.9    +      -       +      +
     30B  GLY      5.5     7.0    -      -       -      -
    505F  GLN      3.2     7.1    +      -       -      +
    506F  ASN*     3.3    25.7    +      -       -      +
    508F  GLY*     1.3    75.2    -      -       -      +
    510F  GLU*     1.3    80.9    +      -       -      +
    512F  VAL*     3.3     5.6    +      -       -      +
    513F  GLU*     3.1    50.8    +      -       -      +
    538F  ALA*     4.1    11.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 510 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    506F  ASN*     2.8    34.0    +      -       -      +
    507F  ARG*     3.8    25.6    -      -       +      +
    508F  GLY      3.3     0.2    -      -       -      -
    509F  ARG*     1.3    90.9    +      -       -      +
    511F  LEU*     1.3    60.9    +      -       -      +
    513F  GLU*     3.4     5.3    +      -       -      +
    514F  LYS*     3.0    29.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 511 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    367F  ALA*     6.2     2.2    -      -       +      -
    483F  VAL*     4.7     9.0    -      -       +      +
    485F  VAL*     3.6    27.6    -      -       +      -
    495F  LEU*     3.4    39.9    -      -       +      +
    497F  LEU*     3.6    31.9    -      -       +      -
    507F  ARG      3.1    15.1    +      -       -      +
    508F  GLY*     3.3     7.1    +      -       -      +
    510F  GLU*     1.3    76.7    -      -       -      +
    512F  VAL*     1.3    62.1    +      -       +      +
    514F  LYS*     3.6    13.5    +      -       +      +
    515F  MET*     3.2    28.5    +      -       +      +
    530F  ALA*     5.2     1.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 512 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    485F  VAL*     6.5     0.2    -      -       +      -
    508F  GLY      3.2    14.2    +      -       -      +
    509F  ARG*     3.7     7.2    -      -       +      +
    510F  GLU      3.3     0.2    -      -       -      -
    511F  LEU*     1.3    75.2    -      -       +      +
    513F  GLU*     1.3    64.6    +      -       -      +
    515F  MET*     3.2     4.3    +      -       -      +
    516F  LYS*     2.9    28.1    +      -       +      +
    528F  ILE*     4.0    23.8    -      -       +      +
    530F  ALA*     4.0    13.2    -      -       +      +
    538F  ALA*     3.8    29.4    -      -       +      +
    539F  ARG      4.5     1.1    -      -       -      -
    540F  SER*     3.4    37.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 513 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30B  GLY*     4.9    12.3    -      -       -      -
    509F  ARG*     3.1    42.0    +      -       -      +
    510F  GLU*     3.8     7.6    -      -       -      +
    512F  VAL*     1.3    78.6    -      -       -      +
    514F  LYS*     1.3    64.9    +      -       -      +
    516F  LYS*     3.1    33.5    +      -       -      +
    517F  ASP*     3.0    30.9    +      -       -      +
    540F  SER*     5.0     1.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 514 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    365F  THR      4.5    13.7    +      -       -      +
    366F  THR*     4.6     1.7    -      -       -      -
    367F  ALA*     3.9    33.9    -      -       +      +
    368F  PRO*     5.6     0.6    -      -       -      +
    452F  LEU*     5.8     2.0    -      -       -      +
    510F  GLU      3.0    17.7    +      -       -      +
    511F  LEU*     3.7    16.2    -      -       +      +
    512F  VAL      3.4     0.2    -      -       -      -
    513F  GLU*     1.3    76.6    -      -       -      +
    515F  MET*     1.3    66.9    +      -       -      +
    517F  ASP*     3.4    12.8    +      -       -      +
    518F  LEU*     3.4    32.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 515 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    333F  ALA*     6.2     0.4    -      -       +      -
    334F  LEU*     4.5    18.6    -      -       +      -
    485F  VAL*     5.3     0.4    -      -       +      -
    487F  ILE*     5.1     5.8    -      -       +      -
    495F  LEU*     3.7    41.3    -      -       +      -
    511F  LEU*     3.2    21.8    +      -       +      +
    512F  VAL      3.4     7.9    -      -       -      +
    513F  GLU      3.2     0.2    -      -       -      -
    514F  LYS*     1.3    79.0    -      -       -      +
    516F  LYS*     1.3    57.5    +      -       -      +
    517F  ASP      3.1     1.6    -      -       -      -
    518F  LEU*     2.8    38.3    +      -       +      +
    519F  ILE*     3.0    37.7    +      -       +      +
    528F  ILE*     3.7    31.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 516 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29B  GLY      5.3     0.4    -      -       -      -
     30B  GLY*     5.8     2.4    -      -       -      -
    512F  VAL      2.9    18.1    +      -       -      +
    513F  GLU*     3.1    40.3    +      -       -      +
    515F  MET*     1.3    72.3    -      -       -      +
    517F  ASP*     1.3    59.4    +      -       -      +
    518F  LEU      3.4     0.2    -      -       -      -
    519F  ILE      3.2    20.6    -      -       -      +
    520F  PRO*     5.2     0.2    -      -       -      +
    528F  ILE*     4.0     9.2    -      -       +      +
    540F  SER*     3.1    33.0    +      -       -      +
    541F  THR      5.3     1.8    -      -       -      +
    542F  VAL*     3.9    28.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 517 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    362C  ASP*     5.0     7.4    -      -       -      +
    553C  CYS*     4.5     9.5    -      -       -      +
    513F  GLU*     3.0    21.5    +      -       -      +
    514F  LYS*     3.6    11.5    -      -       -      +
    515F  MET      3.1     0.6    -      -       -      -
    516F  LYS*     1.3    78.3    -      -       -      +
    518F  LEU*     1.3    69.9    +      -       +      +
    519F  ILE      3.4     1.3    +      -       -      -
    520F  PRO*     5.3     0.3    -      -       -      +
    553F  CYS*     5.4     2.6    -      -       -      -
    554F  TYR*     5.4     5.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 518 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    552C  LYS*     3.3    10.2    -      -       +      +
    553C  CYS      3.0    46.8    +      -       -      +
    555C  GLY*     4.2    20.0    -      -       -      +
    334F  LEU*     6.0     0.4    -      -       +      -
    364F  ILE*     3.9    35.0    -      -       +      -
    365F  THR      5.6     4.0    -      -       -      +
    514F  LYS*     3.4    26.7    +      -       +      +
    515F  MET*     2.8    21.9    +      -       +      +
    517F  ASP*     1.3    85.3    -      -       +      +
    519F  ILE*     1.3    63.6    +      -       +      +
    520F  PRO*     4.1     1.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 519 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    550C  LEU*     4.8     7.4    -      -       +      -
    551C  ALA      4.1     5.6    -      -       -      +
    552C  LYS*     5.4     4.9    -      -       +      -
    333F  ALA*     5.9     0.7    -      -       +      -
    334F  LEU*     6.2     0.9    -      -       +      -
    487F  ILE*     3.8    23.8    -      -       +      -
    515F  MET*     3.0    40.9    +      -       +      +
    516F  LYS      3.2    15.8    -      -       -      +
    517F  ASP      3.4     1.7    -      -       -      -
    518F  LEU*     1.3    86.6    -      -       +      +
    520F  PRO*     1.4    64.3    -      -       -      +
    522F  GLN*     3.2    22.0    -      -       -      +
    526F  ILE*     3.7    22.7    -      -       +      -
    528F  ILE*     4.1    12.8    -      -       +      -
    542F  VAL*     3.6    17.2    -      -       +      +
----------------------------------------------------------
 Back to top of page


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