Contacts of the strand formed by residues 248 - 256 (chain A) in PDB entry 5DVX


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 ALA 248 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227A  LEU*     6.0     0.2    -      -       +      -
    228A  HIS      3.2    16.6    -      -       -      +
    229A  TRP*     4.1    10.8    -      -       +      -
    237A  SER*     3.7    12.5    -      -       -      +
    246A  PHE*     3.3     1.1    +      -       -      +
    247A  PRO*     1.3    81.7    -      -       -      +
    249A  GLU*     1.3    64.9    +      -       -      +
    278A  PHE*     3.6     4.5    -      -       -      +
    279A  LEU*     2.9    46.4    +      -       +      +
    356A  LEU*     4.5     6.5    -      -       +      -
    359A  LEU*     4.1     9.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 249 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227A  LEU*     3.4     6.1    -      -       -      +
    228A  HIS*     2.9    38.5    +      -       +      +
    237A  SER*     3.6     9.1    -      -       -      -
    238A  GLU*     2.8    23.7    +      -       -      +
    239A  HIS*     2.8    33.7    +      -       -      -
    248A  ALA*     1.3    78.9    -      -       -      +
    250A  ILE*     1.3    63.8    +      -       -      +
    251A  HIS*     2.7    33.7    +      -       +      +
    276A  ALA*     3.7     5.7    -      -       -      +
    277A  ALA      3.3    17.7    -      -       -      +
    278A  PHE*     3.5    16.7    -      -       +      -
    279A  LEU*     3.9     4.7    -      -       -      +
    344A  VAL*     6.2     0.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 250 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225A  LEU*     4.2    22.0    -      -       +      -
    226A  HIS      3.6     6.5    -      -       -      +
    227A  LEU*     3.6    20.6    -      -       +      -
    249A  GLU*     1.3    73.8    -      -       -      +
    251A  HIS*     1.3    74.5    +      -       -      +
    252A  VAL*     4.5     7.6    -      -       +      -
    275A  LEU      3.6     0.6    -      -       -      +
    276A  ALA*     3.2     7.3    -      -       -      -
    277A  ALA*     2.9    57.3    +      -       +      +
    279A  LEU*     3.8     4.2    -      -       +      +
    289A  TYR*     3.4    27.4    -      -       +      +
    316A  LEU*     4.0    21.8    -      -       +      +
    317A  LEU*     4.2    11.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 251 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225A  LEU*     3.1     5.7    -      -       -      +
    226A  HIS*     3.0    48.6    +      -       +      +
    228A  HIS*     3.1     9.6    +      +       -      -
    238A  GLU*     3.1    23.3    -      -       +      -
    239A  HIS*     5.3     0.2    -      +       -      -
    249A  GLU*     2.7    32.5    +      -       +      +
    250A  ILE*     1.3    86.0    -      -       -      +
    252A  VAL*     1.3    61.8    +      -       -      +
    253A  VAL*     4.0     1.4    +      -       +      -
    274A  VAL*     3.8    12.8    -      -       +      -
    275A  LEU      3.4     2.7    -      -       -      -
    276A  ALA*     3.7    11.0    -      -       +      -
    332A  THR*     4.7     0.2    -      -       +      -
    342A  TRP*     3.6    22.7    -      +       -      -
    401A   ZN      2.0    33.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 252 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    185A  PHE*     4.7     9.6    -      -       +      -
    206A  LEU*     4.1    18.8    -      -       +      -
    222A  ALA*     4.2     4.5    -      -       +      -
    224A  GLN      3.6     9.2    -      -       -      +
    225A  LEU*     4.0    17.9    -      -       +      -
    250A  ILE*     4.5     5.2    -      -       +      -
    251A  HIS*     1.3    75.5    -      -       -      +
    253A  VAL*     1.3    60.0    +      -       -      +
    254A  HIS*     3.0    32.2    +      -       +      +
    274A  VAL*     3.4     1.9    -      -       -      -
    275A  LEU*     2.8    39.9    +      -       +      +
    313A  ILE*     5.2     3.1    -      -       +      -
    317A  LEU*     4.1    32.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 253 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    222A  ALA*     3.7     2.4    -      -       -      +
    223A  LEU*     2.8    37.4    +      -       +      +
    224A  GLN*     2.9    36.6    +      -       +      +
    226A  HIS*     3.8    21.3    -      -       +      -
    252A  VAL*     1.3    74.3    -      -       -      +
    254A  HIS*     1.3    62.2    +      -       -      +
    272A  LEU*     5.3     6.5    -      -       +      -
    273A  ALA      3.7     5.2    -      -       -      +
    274A  VAL*     4.3    21.1    -      -       +      -
    331A  LEU*     5.4     6.7    -      -       +      -
    403A  GOL      3.9    27.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 254 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    185A  PHE*     3.9     8.0    -      +       -      -
    212A  MET*     3.5    38.9    -      -       +      +
    220A  TYR*     3.6    17.5    -      -       +      -
    221A  ARG      3.2     7.9    -      -       -      +
    222A  ALA*     3.5    29.9    -      -       +      +
    223A  LEU*     4.4     5.2    -      -       -      +
    252A  VAL*     3.0    44.7    +      -       +      -
    253A  VAL*     1.3    74.5    -      -       -      +
    255A  LEU*     1.3    59.6    +      -       -      +
    272A  LEU*     3.4    12.0    -      -       -      +
    273A  ALA      2.7    40.5    +      -       -      +
    275A  LEU*     3.8    22.8    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 255 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    220A  TYR*     3.4     3.1    -      -       -      -
    221A  ARG*     2.9    43.6    +      -       +      +
    223A  LEU*     4.0    28.9    -      -       +      +
    254A  HIS*     1.3    73.2    -      -       -      +
    256A  SER*     1.3    80.3    +      -       -      +
    259A  TYR*     3.5    19.1    -      -       +      +
    260A  ALA      3.8    15.0    -      -       -      +
    261A  ARG*     3.9    18.4    -      -       -      +
    262A  VAL*     4.1     4.7    -      -       +      +
    265A  ALA*     3.5    33.2    -      -       +      -
    271A  GLY      3.7     1.8    -      -       -      +
    272A  LEU*     3.9     7.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 256 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219A  GLU      3.6     3.9    +      -       -      -
    220A  TYR*     3.3    16.8    -      -       -      -
    255A  LEU*     1.3    76.2    -      -       -      +
    257A  THR*     1.3    59.2    +      -       -      +
    258A  LYS*     2.9    36.7    +      -       -      +
    259A  TYR*     3.0    32.4    +      -       -      +
    270A  GLY      3.6    16.7    +      -       -      -
    271A  GLY*     2.8    23.0    +      -       -      -
----------------------------------------------------------
 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