Contacts of the strand formed by residues 103 - 111 (chain A) in PDB entry 2NSQ


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 ASP 103 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35A  LYS*     4.8    15.3    -      -       +      +
     94A  PHE*     3.2     4.7    -      -       -      -
     95A  ASP*     2.8    52.7    +      -       +      +
     97A  ASN*     3.5    15.9    +      -       -      +
    100A  THR*     5.2     0.9    +      -       -      -
    101A  ARG      3.4     3.7    +      -       -      +
    102A  ASP*     1.3    71.0    -      -       -      +
    104A  PHE*     1.3    70.3    +      -       -      +
    105A  LEU*     3.5     6.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 104 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92A  GLU*     4.1     9.2    -      -       +      -
     93A  VAL      4.1     2.9    -      -       -      -
     94A  PHE*     3.6    24.2    -      +       +      -
    102A  ASP      3.8     1.4    +      -       -      -
    103A  ASP*     1.3    78.3    +      -       -      +
    105A  LEU*     1.3    65.1    +      -       -      +
    106A  GLY*     3.3    43.5    -      -       -      -
    107A  GLN*     3.6    15.0    -      -       +      -
    134A  ARG      4.3     0.2    -      -       -      -
    135A  PRO*     4.2     3.6    -      -       +      -
    136A  ARG*     3.5    73.8    -      -       +      +
    140A  SER*     5.9     0.2    -      -       -      -
    142A  VAL*     4.4     6.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 105 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32A  LEU*     4.3    21.2    -      -       +      +
     33A  ALA*     3.9    34.1    +      -       +      +
     35A  LYS*     4.4    19.1    -      -       +      -
     41A  SER*     4.5     8.7    -      -       -      +
     43A  PRO*     4.8     2.0    -      -       +      -
     93A  VAL*     2.7    39.3    +      -       +      +
     94A  PHE      4.3     1.3    -      -       -      +
     95A  ASP*     4.0    26.7    -      -       +      +
    103A  ASP*     3.8    12.6    -      -       +      +
    104A  PHE*     1.3    80.5    -      -       -      +
    106A  GLY*     1.3    56.5    +      -       -      +
    133A  LEU*     4.5     8.5    -      -       -      +
    142A  VAL*     3.4    22.7    -      -       -      +
    143A  LYS      4.6     2.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 106 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93A  VAL*     2.8    27.4    +      -       -      +
    104A  PHE*     3.3    25.9    -      -       -      -
    105A  LEU*     1.3    80.5    -      -       -      +
    107A  GLN*     1.3    58.3    +      -       -      -
    133A  LEU*     3.8    12.0    -      -       -      +
    134A  ARG      3.5     7.2    -      -       -      -
    142A  VAL*     3.9     9.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 107 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90A  LEU*     3.9    24.6    -      -       +      +
     91A  PHE      3.1    12.8    -      -       -      +
     92A  GLU*     4.2     6.5    -      -       +      +
    104A  PHE*     3.8     9.7    -      -       +      -
    106A  GLY*     1.3    74.6    -      -       -      +
    108A  VAL*     1.3    70.8    +      -       -      +
    109A  ASP*     5.0     8.1    +      -       -      +
    133A  LEU*     3.8     1.7    -      -       -      +
    134A  ARG*     2.8    50.0    +      -       +      +
    135A  PRO      3.9    14.5    +      -       -      +
    136A  ARG*     3.9    24.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 108 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90A  LEU*     3.6     2.8    -      -       -      +
     91A  PHE*     2.8    46.6    +      -       +      +
    107A  GLN*     1.3    80.2    -      -       -      +
    109A  ASP*     1.3    67.0    +      -       -      +
    110A  VAL*     4.9     3.6    -      -       +      +
    131A  PHE*     3.6    48.5    -      -       +      +
    132A  LEU      3.9    10.1    -      -       -      +
    133A  LEU*     3.8    18.2    -      -       +      -
    134A  ARG*     5.1     3.1    -      -       -      -
    146A  LEU*     4.1    12.6    -      -       +      -
    148A  LEU*     4.7     6.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 109 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50A  TYR*     2.6    30.9    +      -       -      -
     88A  ARG*     2.7    49.7    +      -       -      +
     89A  LEU      3.7     2.2    -      -       -      -
     90A  LEU*     3.5    19.7    -      -       +      +
    107A  GLN*     4.3     9.6    +      -       -      +
    108A  VAL*     1.3    77.8    -      -       -      +
    110A  VAL*     1.3    58.1    +      -       -      +
    111A  PRO*     3.9     3.1    -      -       -      +
    134A  ARG*     5.8     1.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 110 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88A  ARG*     3.4     6.6    -      -       -      +
     89A  LEU*     2.8    65.4    +      -       +      +
     91A  PHE*     3.7    15.0    -      -       +      -
    108A  VAL*     4.0     7.4    -      -       +      -
    109A  ASP*     1.3    73.0    +      -       -      +
    111A  PRO*     1.3    83.0    -      -       +      +
    112A  LEU*     3.8     7.5    +      -       +      +
    115A  LEU*     4.4     9.0    -      -       +      -
    131A  PHE*     5.0     9.0    -      -       +      -
    150A  MET*     3.9    27.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 111 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87A  HIS      4.6     0.2    -      -       -      +
     88A  ARG*     3.6    38.8    -      -       +      +
    109A  ASP      3.9     2.9    -      -       -      +
    110A  VAL*     1.3   102.6    -      -       +      +
    112A  LEU*     1.3    62.4    +      -       -      +
    113A  SER*     3.5    13.0    +      -       -      +
    114A  HIS*     4.9     1.9    +      -       +      +
    115A  LEU*     4.1     7.4    -      -       -      +
----------------------------------------------------------
 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