Contacts of the strand formed by residues 22 - 32 (chain D) in PDB entry 4FPR


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 CYS 22 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21D  VAL*     1.3    74.0    -      -       -      +
     23D  ARG*     1.3    72.7    +      -       -      +
     98D  ARG*     3.5    11.2    -      -       -      -
     99D  TYR      3.0    34.1    -      -       -      +
    100D  ARG*     3.2     8.1    -      -       -      -
    101D  GLU*     4.7     1.3    -      -       -      +
    139D  THR*     3.4     5.0    -      -       -      +
    140D  ARG*     2.8    29.8    +      -       -      -
    141D  GLY      3.4    13.2    -      -       -      +
    142D  CYS*     2.0    48.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 23 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22D  CYS*     1.3    77.2    -      -       -      +
     24D  GLU*     1.3    62.5    +      -       -      +
     97D  HIS      3.4     6.6    -      -       -      +
     99D  TYR*     2.8    34.7    +      -       -      +
    101D  GLU*     3.0    42.8    +      -       +      +
    133D  VAL*     3.2    24.2    -      -       +      -
    134D  ASN      3.4    10.4    +      -       -      +
    135D  MET*     3.0    55.6    +      -       -      +
    137D  ALA      3.6    10.2    +      -       -      -
    138D  ARG      4.7     2.5    -      -       -      +
    139D  THR*     3.3    30.3    -      -       +      +
    140D  ARG*     3.5    13.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 24 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23D  ARG*     1.3    78.4    -      -       -      +
     25D  ALA*     1.3    60.2    +      -       -      +
     26D  SER*     4.8     4.0    +      -       -      -
     95D  THR*     3.7    25.5    -      -       +      +
     96D  ALA      3.4     6.7    -      -       -      +
     97D  HIS*     4.3    12.4    +      -       -      +
    133D  VAL*     3.5     3.8    -      -       -      +
    134D  ASN*     2.6    69.1    +      -       +      +
    137D  ALA*     4.9     4.2    -      -       +      +
    138D  ARG      5.1     0.4    +      -       -      -
    140D  ARG*     3.8    28.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 25 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23D  ARG      4.1     0.4    +      -       -      -
     24D  GLU*     1.3    76.3    -      -       -      +
     26D  SER*     1.3    63.2    +      -       -      +
     95D  THR*     3.4     1.9    -      -       -      +
     96D  ALA      2.8    34.4    +      -       -      +
     99D  TYR*     3.5    45.3    -      -       +      -
    131D  TRP*     3.9     5.8    -      -       +      -
    132D  VAL      3.1    14.6    -      -       -      +
    133D  VAL*     4.0     6.3    -      -       -      -
    134D  ASN*     4.2     1.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 26 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24D  GLU*     4.8     5.2    +      -       -      -
     25D  ALA*     1.3    75.1    +      -       -      +
     27D  ILE*     1.3    61.2    +      -       -      +
     28D  SER*     5.6     0.4    -      -       -      -
     93D  LYS*     3.6    26.3    -      -       -      -
     94D  ILE      3.2     8.1    -      -       -      -
     95D  THR*     3.1    24.1    +      -       -      +
    130D  GLU      3.6     1.0    -      -       -      +
    131D  TRP*     3.6     3.8    -      -       -      -
    132D  VAL*     2.9    39.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 27 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26D  SER*     1.3    77.0    -      -       -      +
     28D  SER*     1.3    70.1    +      -       -      +
     55D  LEU*     3.7    15.7    -      -       +      -
     92D  CYS      3.7     1.6    -      -       -      +
     93D  LYS*     3.6     1.4    -      -       -      -
     94D  ILE*     2.9    36.8    +      -       +      +
    111D  PHE*     4.0    24.0    -      -       +      -
    119D  PHE*     3.9    19.2    -      -       +      -
    129D  PRO*     4.0    12.3    -      -       +      -
    130D  GLU      3.6    29.2    -      -       -      +
    131D  TRP*     3.5    40.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 28 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26D  SER      5.6     0.3    -      -       -      -
     27D  ILE*     1.3    76.3    -      -       -      +
     29D  GLY*     1.3    58.4    +      -       -      +
     91D  THR*     4.2     9.6    -      -       -      +
     92D  CYS      3.3     7.2    -      -       -      -
     93D  LYS*     3.6    25.1    -      -       -      +
    119D  PHE*     3.8     3.6    -      -       -      -
    122D  GLU*     3.4    23.2    -      -       -      +
    129D  PRO*     3.2    26.9    -      -       -      +
    130D  GLU      4.8     2.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 29 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28D  SER*     1.3    76.3    -      -       -      +
     30D  GLU*     1.3    61.5    +      -       -      -
     91D  THR*     3.6     3.2    -      -       -      -
     92D  CYS*     2.8    34.5    +      -       -      +
    119D  PHE*     3.1    24.4    -      -       -      -
    120D  ARG      3.7     6.5    -      -       -      -
    122D  GLU*     4.2     7.6    -      -       -      -
    129D  PRO*     4.2     4.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 30 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135A  MET*     5.5     1.4    -      -       -      +
     29D  GLY*     1.3    74.9    -      -       -      -
     31D  ILE*     1.3    66.2    +      -       -      +
     32D  ARG*     2.9    38.9    +      -       +      +
     89D  LEU*     3.8    14.8    -      -       +      +
     90D  CYS      3.4    11.0    -      -       -      +
     91D  THR*     4.8     3.1    +      -       -      +
    118D  ILE      4.2     0.7    -      -       -      +
    119D  PHE*     3.1     6.8    -      -       -      -
    120D  ARG*     2.6    49.9    +      -       -      +
    121D  GLN      3.9     1.9    -      -       -      +
    122D  GLU*     3.7    16.8    -      -       +      +
    123D  THR*     2.8    47.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 31 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30D  GLU*     1.3    81.5    -      -       -      +
     32D  ARG*     1.3    69.7    +      -       -      +
     33D  TYR*     3.7    29.0    -      -       +      +
     44D  ALA      5.6     0.7    -      -       -      +
     47D  ASP*     4.5     4.7    -      -       +      +
     48D  CYS*     4.5    12.6    -      -       +      +
     51D  VAL*     4.4     5.2    -      -       +      -
     88D  VAL      3.8     0.7    -      -       -      +
     89D  LEU*     3.6     0.7    -      -       -      -
     90D  CYS*     2.7    46.2    +      -       +      +
     92D  CYS*     4.3    15.3    -      -       +      -
    118D  ILE*     3.9    34.5    -      -       +      +
    119D  PHE*     3.8    18.6    -      -       +      -
    120D  ARG*     6.1     1.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 32 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30D  GLU*     2.9    35.9    +      -       -      +
     31D  ILE*     1.3    80.1    -      -       -      +
     33D  TYR*     1.3    73.7    +      -       -      +
     34D  PRO*     4.6     0.9    -      -       -      +
     87D  VAL*     3.9    12.3    -      -       +      +
     88D  VAL      3.1    13.5    -      -       -      +
     89D  LEU*     3.4    26.9    -      -       +      +
    120D  ARG*     4.7    27.3    -      -       -      +
    121D  GLN      4.6     7.9    +      -       -      -
    123D  THR*     4.1     6.7    +      -       -      -
----------------------------------------------------------
 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