Contacts of the strand formed by residues 120 - 128 (chain A) in PDB entry 5SWW


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 VAL 120 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84A  LEU*     3.9    21.8    -      -       +      -
     90A  TYR*     3.5     9.2    -      -       +      +
     92A  VAL*     3.8    28.9    -      -       +      -
    113A  PHE*     3.9    25.6    -      -       +      -
    114A  LEU*     4.0    14.3    -      -       +      +
    117A  ASN*     3.5    22.9    +      -       +      +
    118A  THR*     3.2     2.6    -      -       -      +
    119A  HIS*     1.3   103.5    -      -       +      +
    121A  ARG*     1.3    70.4    +      -       -      +
    122A  LEU*     5.5     1.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 121 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40A  LEU*     5.3     5.6    -      -       +      +
     89A  ILE*     3.5    46.0    -      -       +      +
     90A  TYR      2.9    12.4    +      -       -      +
     91A  ARG*     3.4    12.2    -      -       +      +
     92A  VAL      2.9    25.6    +      -       -      +
    114A  LEU*     5.3     0.2    -      -       -      -
    118A  THR      3.3    24.1    +      -       -      -
    119A  HIS*     4.8     0.6    -      -       -      +
    120A  VAL*     1.3    78.2    -      -       -      +
    122A  LEU*     1.3    61.1    +      -       -      +
    147A  GLY      5.7     5.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 122 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75A  PHE*     5.7     0.2    -      -       +      -
     91A  ARG*     5.9     0.2    -      -       -      -
     92A  VAL*     3.3    36.1    -      -       +      +
     94A  TRP*     3.8    31.6    -      -       +      +
    110A  VAL*     3.8    25.6    -      -       +      -
    113A  PHE*     6.2     1.8    -      -       +      -
    114A  LEU*     4.0    20.3    -      -       +      +
    120A  VAL*     4.3     2.0    +      -       +      -
    121A  ARG*     1.3    73.7    -      -       -      +
    123A  ARG*     1.3    64.7    +      -       -      +
    124A  ILE*     3.8    27.6    -      -       +      -
    147A  GLY      4.4     2.5    +      -       -      +
    148A  ALA*     3.2    16.9    -      -       +      +
    149A  GLN*     3.0    20.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 123 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  GLU*     4.4     2.6    +      -       -      -
     91A  ARG*     3.6    47.4    -      -       +      +
     92A  VAL      2.9    10.2    +      -       -      +
     93A  THR*     2.7    38.6    +      -       +      +
     94A  TRP      2.9    25.3    +      -       -      +
     95A  PHE*     5.8     1.4    -      -       -      -
    122A  LEU*     1.3    75.2    -      -       -      +
    124A  ILE*     1.3    62.4    +      -       -      +
    125A  PHE*     3.8    23.7    -      -       +      -
    149A  GLN*     3.4    37.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 124 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94A  TRP*     3.7    37.9    -      -       +      -
     96A  ILE*     3.9    24.9    -      -       +      -
    100A  PRO*     4.3    10.3    -      -       +      -
    122A  LEU*     3.8    22.7    -      -       +      -
    123A  ARG*     1.3    75.9    -      -       -      +
    125A  PHE*     1.3    65.7    +      -       -      +
    126A  ALA*     4.6     3.8    -      -       +      +
    143A  LEU*     3.8    34.5    -      -       +      -
    148A  ALA*     5.0     3.1    -      -       +      -
    149A  GLN*     2.7    15.9    +      -       -      +
    150A  VAL*     3.7     8.9    -      -       +      -
    151A  SER*     2.8    30.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 125 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93A  THR*     3.8    10.1    -      -       +      -
     94A  TRP      2.9    21.1    +      -       -      +
     95A  PHE*     3.4    20.4    -      +       +      -
     96A  ILE*     2.9    29.6    +      -       -      +
    123A  ARG*     3.8    35.0    -      -       +      -
    124A  ILE*     1.3    72.7    -      -       -      +
    126A  ALA*     1.3    60.3    +      -       -      +
    149A  GLN*     3.8    17.3    -      -       -      -
    151A  SER*     3.4    28.7    -      -       -      -
    152A  ILE      4.3     8.3    -      -       -      -
    153A  MET*     3.5    17.7    -      -       +      +
    157A  GLU*     3.9    30.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 126 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96A  ILE*     3.4     9.2    -      -       +      -
     99A  SER*     4.0    25.1    -      -       -      +
    124A  ILE*     4.0     4.2    -      -       +      -
    125A  PHE*     1.3    72.4    -      -       -      +
    127A  ALA*     1.3    64.0    +      -       -      +
    128A  ARG      3.6    17.3    -      -       -      +
    140A  LEU*     5.9     1.8    -      -       +      -
    150A  VAL*     6.1     2.2    -      -       +      -
    151A  SER      3.0    12.7    +      -       -      +
    152A  ILE*     3.4    18.7    -      -       +      +
    153A  MET*     2.9    18.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 127 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22A  PHE*     3.9    17.3    -      -       +      +
     24A  ASN*     3.3    14.0    -      -       -      +
     96A  ILE      3.0    10.8    +      -       -      +
     97A  SER*     3.6    14.1    -      -       -      +
    126A  ALA*     1.3    74.1    -      -       -      +
    128A  ARG*     1.3    62.9    +      -       +      +
    152A  ILE*     4.6     2.6    -      -       -      +
    153A  MET*     3.7    26.2    -      -       -      +
    158A  PHE*     3.9    16.8    -      -       +      -
    186A  LEU*     3.2    18.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 128 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21A  ASN      2.4    25.4    +      -       -      -
     22A  PHE      4.1     1.2    -      -       -      -
     23A  ASN      2.6    33.8    +      -       -      +
     24A  ASN*     3.7    18.6    -      -       -      +
     25A  GLY      5.3     0.4    -      -       -      -
     26A  ILE      3.2    18.8    +      -       -      -
     27A  GLY*     3.5     6.9    -      -       -      +
     28A  ARG*     3.5    14.8    -      -       -      +
     30A  LYS      4.2     0.4    +      -       -      -
     97A  SER*     2.7    33.0    +      -       -      +
     98A  TRP*     3.0    50.6    -      -       +      +
     99A  SER      3.1    23.4    +      -       -      -
    126A  ALA*     3.6     9.9    -      -       -      +
    127A  ALA*     1.3    81.7    -      -       -      +
    129A  ILE*     1.3    63.7    +      -       -      +
    152A  ILE*     5.2     0.2    -      -       -      -
    186A  LEU*     3.8     7.0    -      -       +      -
----------------------------------------------------------
 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