Contacts of the strand formed by residues 90 - 98 (chain A) in PDB entry 1CD8


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 GLY 90 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A  PHE*     3.5    10.1    -      -       -      -
     38A  GLN      3.6     5.6    -      -       -      -
     39A  PRO      4.2     6.7    -      -       -      -
     88A  ASN      3.4     2.8    +      -       -      -
     89A  GLU*     1.3    74.9    -      -       -      +
     91A  TYR*     1.3    66.8    +      -       -      -
     92A  TYR*     4.2     1.6    -      -       -      -
    108A  VAL      3.7     0.2    -      -       -      +
    109A  PRO*     3.6     2.9    -      -       -      +
    110A  VAL*     2.8    33.8    +      -       -      +
    111A  PHE*     3.7    13.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 91 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A  PHE*     3.3     6.4    -      -       -      -
     38A  GLN*     2.8    43.0    +      -       +      +
     39A  PRO      4.4     0.2    -      -       -      -
     40A  ARG*     3.7    44.6    +      -       -      -
     90A  GLY*     1.3    74.9    -      -       -      -
     92A  TYR*     1.3    60.4    +      -       -      +
     93A  PHE*     4.2     1.6    -      -       -      -
    107A  PHE*     3.6    57.2    -      +       +      -
    108A  VAL      3.5     2.2    -      -       -      -
    109A  PRO*     3.8    18.6    -      -       +      -
    111A  PHE*     3.8    31.4    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 92 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18A  VAL*     6.0     0.4    -      -       +      -
     20A  LEU*     3.7    21.3    -      -       +      -
     35A  TRP*     4.0     8.1    -      -       +      -
     36A  LEU      3.3     5.2    -      -       -      +
     37A  PHE*     3.4    25.3    -      +       -      -
     49A  LEU*     3.8    22.7    -      -       +      -
     68A  PHE*     4.7     8.7    -      +       -      -
     79A  LEU*     3.7    24.2    -      -       +      -
     81A  LEU*     3.6    14.1    -      -       +      +
     88A  ASN*     2.8    43.7    +      -       -      +
     90A  GLY      4.0     2.5    -      -       -      -
     91A  TYR*     1.3    77.7    -      -       -      +
     93A  PHE*     1.3    61.6    +      -       -      +
    107A  PHE*     4.7     0.2    -      -       -      -
    108A  VAL*     2.9    38.1    +      -       +      +
    110A  VAL*     3.6    32.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 93 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5A  VAL*     5.6     0.4    -      -       -      -
     35A  TRP*     3.4    12.8    -      -       -      -
     36A  LEU*     2.9    70.8    +      -       +      +
     37A  PHE      4.4     0.2    -      -       -      -
     38A  GLN*     4.0    20.6    -      -       +      -
     46A  PRO*     3.7    25.1    -      -       +      -
     91A  TYR      4.3     1.3    -      -       -      -
     92A  TYR*     1.3    78.6    -      -       -      +
     94A  CYS*     1.3    62.6    +      -       -      +
    104A  PHE*     3.5    32.5    -      +       +      -
    105A  SER*     3.6    16.4    -      -       -      +
    106A  HIS      3.7     8.7    -      -       -      +
    107A  PHE*     3.5    35.9    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 94 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3A  PHE*     3.8     7.9    -      -       +      -
     22A  CYS*     2.0    51.1    -      -       +      -
     33A  CYS*     3.6    13.2    -      -       -      -
     34A  SER      3.2     4.5    -      -       -      -
     35A  TRP*     3.2    30.1    -      -       -      -
     36A  LEU*     4.7     0.2    -      -       -      -
     93A  PHE*     1.3    77.9    -      -       -      +
     95A  SER*     1.3    62.7    +      -       -      +
    104A  PHE*     3.3     7.1    -      -       -      +
    105A  SER*     2.8    38.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 95 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3A  PHE*     4.0     3.6    -      -       -      -
     32A  GLY      3.7     0.5    -      -       -      +
     33A  CYS*     3.4     6.2    -      -       -      -
     34A  SER*     2.9    38.7    +      -       -      -
     36A  LEU*     3.6    23.1    -      -       -      -
     94A  CYS*     1.3    76.0    -      -       -      +
     96A  ALA*     1.3    59.9    +      -       -      +
    102A  MET*     4.4    10.6    -      -       -      +
    103A  TYR      2.8    18.4    +      -       -      -
    104A  PHE*     3.4    16.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 96 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3A  PHE*     3.6    21.4    -      -       +      -
     24A  VAL*     4.7     6.1    -      -       +      -
     26A  LEU*     4.1    14.8    -      -       +      -
     29A  PRO*     5.5     1.3    -      -       +      -
     31A  SER*     3.8     5.4    -      -       -      +
     32A  GLY      3.8    16.8    -      -       -      +
     33A  CYS*     4.6     4.0    -      -       -      -
     95A  SER*     1.3    76.4    -      -       -      +
     97A  LEU*     1.3    64.7    +      -       -      +
    102A  MET*     3.8     1.2    -      -       -      -
    103A  TYR*     3.0    30.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 97 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  LEU*     4.5     1.9    -      -       -      +
     29A  PRO*     3.4     4.7    -      -       -      +
     30A  THR*     2.7    42.4    +      -       +      -
     31A  SER*     2.8    28.3    +      -       -      +
     96A  ALA*     1.3    76.7    -      -       -      +
     98A  SER*     1.3    59.1    +      -       -      +
    100A  SER*     4.3    14.8    -      -       -      +
    101A  ILE      3.3    20.9    -      -       -      +
    102A  MET*     3.6    31.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 98 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  LEU*     3.2    20.2    -      -       -      +
     28A  ASN*     2.8    27.0    +      -       -      -
     29A  PRO*     3.2    10.3    -      -       -      +
     30A  THR*     3.2     6.3    -      -       -      +
     97A  LEU*     1.3    70.1    +      -       -      +
     99A  ASN*     1.3    72.0    +      -       -      +
    100A  SER      3.4     0.4    -      -       -      -
    101A  ILE*     3.0    25.4    +      -       -      +
    103A  TYR*     3.8    17.9    -      -       -      -
----------------------------------------------------------
 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