Contacts of the strand formed by residues 39 - 48 (chain A) in PDB entry 2D9F


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 39 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  GLN*     1.3    70.5    -      -       -      +
     40A  VAL*     1.3    59.2    +      -       -      +
     41A  THR*     4.1     8.4    +      -       -      +
     61A  VAL*     3.3    30.5    -      -       +      -
     62A  PHE      3.6     6.1    -      -       -      +
     63A  THR*     4.9     8.3    -      -       -      +
    120A  THR      4.2     0.5    -      -       -      +
    121A  ALA*     3.5     1.7    -      -       -      -
    122A  VAL*     2.6    46.1    +      -       +      +
    123A  ASP*     3.6    18.7    -      -       -      +
    124A  ARG      3.6    20.0    -      -       -      +
    125A  PRO*     4.2    11.4    -      -       +      -
    126A  ASP*     4.6     3.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 40 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  PRO*     4.1    16.4    -      -       +      -
     35A  VAL      5.1     1.8    -      -       -      +
     38A  GLN*     3.9     3.8    -      -       +      +
     39A  VAL*     1.3    74.5    -      -       -      +
     41A  THR*     1.3    61.1    +      -       -      +
     42A  VAL*     4.0     1.9    +      -       +      -
     60A  LEU      3.5     1.6    -      -       -      +
     61A  VAL*     3.5     3.3    -      -       -      -
     62A  PHE*     2.9    73.5    +      -       +      +
     64A  LEU*     3.9    13.5    -      -       +      -
     77A  VAL*     4.1    14.1    -      -       +      -
    118A  LEU*     4.4     8.1    -      -       +      -
    120A  THR      4.0     1.6    -      -       -      -
    121A  ALA*     3.6    24.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 41 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39A  VAL*     4.3     7.1    +      -       -      +
     40A  VAL*     1.3    73.6    +      -       -      +
     42A  VAL*     1.3    63.5    +      -       -      +
     59A  GLU*     3.9    31.2    -      -       +      +
     60A  LEU      3.2    14.4    -      -       -      +
     61A  VAL*     4.2    13.4    -      -       +      +
    118A  LEU*     4.5     0.4    -      -       -      +
    119A  LYS*     3.3    31.4    +      -       +      +
    120A  THR*     3.1    26.5    +      -       -      +
    122A  VAL*     6.0     0.9    -      -       -      +
    126A  ASP*     4.2    15.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 42 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40A  VAL*     4.0     4.2    +      -       +      +
     41A  THR*     1.3    82.2    -      -       -      +
     43A  HIS*     1.3    67.2    +      -       -      +
     44A  LEU      4.3     1.3    -      -       -      +
     58A  PRO      3.5     4.5    -      -       -      +
     59A  GLU*     4.1     0.5    -      -       -      -
     60A  LEU*     2.9    53.0    +      -       +      +
     62A  PHE*     5.0     0.2    -      -       +      -
     73A  LEU*     3.8    21.5    -      -       +      -
     77A  VAL*     4.2    12.6    -      -       +      -
    116A  VAL*     3.9     7.2    -      -       +      -
    117A  THR      3.0    18.2    -      -       -      +
    118A  LEU*     3.3    32.8    -      -       +      -
    119A  LYS*     4.1     3.8    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 43 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42A  VAL*     1.3    79.7    -      -       -      +
     44A  LEU*     1.3    52.7    +      -       -      +
     45A  GLN*     3.2    39.0    +      -       +      +
     56A  GLU*     4.1     8.0    -      -       +      +
     57A  GLU      3.0    24.8    +      -       -      -
     58A  PRO*     3.6    27.4    +      -       +      +
    115A  GLU*     2.4    28.6    -      -       -      +
    117A  THR*     3.3    25.5    +      -       +      +
    119A  LYS*     5.0     9.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 44 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42A  VAL*     4.0     6.8    +      -       +      +
     43A  HIS*     1.3    73.0    -      -       -      +
     45A  GLN*     1.3    87.3    +      -       -      +
     46A  THR*     3.8    13.0    -      -       -      +
     55A  GLN*     4.2    14.4    -      -       -      +
     57A  GLU*     3.1    44.0    +      -       +      +
     60A  LEU*     4.5     9.5    -      -       +      +
     70A  ILE*     5.4     8.3    -      -       +      -
     73A  LEU*     4.6    27.8    -      -       +      -
    114A  LEU*     3.6    33.2    -      -       +      -
    115A  GLU      3.5     5.4    -      -       -      +
    116A  VAL*     5.5     1.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 45 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43A  HIS*     3.2    37.6    +      -       +      +
     44A  LEU*     1.3    80.8    -      -       -      +
     46A  THR*     1.3    61.7    +      -       -      +
     47A  SER*     4.0     2.8    +      -       -      +
     53A  ARG*     3.3    28.5    -      -       -      +
     55A  GLN      4.0     4.5    -      -       -      +
     56A  GLU*     3.0    34.1    +      -       +      +
    113A  CYS      2.9    16.8    -      -       -      +
    114A  LEU*     3.4     7.6    -      -       -      -
    115A  GLU*     3.7    19.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 46 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44A  LEU*     3.8     6.3    -      -       -      +
     45A  GLN*     1.3    73.4    -      -       -      +
     47A  SER*     1.3    64.0    +      -       -      +
     53A  ARG*     3.4     4.5    -      -       -      +
     54A  VAL*     3.0    32.7    +      -       +      -
     55A  GLN*     3.3    45.9    +      -       -      +
     70A  ILE*     5.9     1.9    -      -       -      +
     96A  TYR*     3.9    12.5    +      -       +      +
    112A  LEU*     3.9    27.1    -      -       +      -
    114A  LEU*     3.4    25.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 47 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45A  GLN*     4.0     2.3    +      -       -      +
     46A  THR*     1.3    78.9    -      -       -      +
     48A  LEU*     1.3    68.7    +      -       -      +
     51A  GLY*     5.0     3.8    -      -       -      -
     52A  THR      3.8     8.3    -      -       -      -
     53A  ARG*     4.0    22.0    -      -       -      -
     54A  VAL      4.2     0.2    -      -       -      +
    112A  LEU*     3.4     5.6    -      -       -      -
    113A  CYS*     2.8    56.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 48 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47A  SER*     1.3    77.2    -      -       -      +
     49A  GLU*     1.3    67.9    +      -       +      +
     50A  ASN*     2.7    29.3    +      -       -      +
     51A  GLY*     2.7    15.4    +      -       -      -
     52A  THR*     3.2    22.3    +      -       +      +
     54A  VAL*     3.0    37.2    -      -       +      -
    107A  PRO*     4.4    24.9    -      -       +      -
    110A  ALA*     4.6     5.4    -      -       +      -
    111A  ALA      4.3     4.0    -      -       -      +
    112A  LEU*     3.6    20.4    -      -       +      -
    113A  CYS*     5.3     1.7    -      -       -      +
----------------------------------------------------------
 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