Contacts of the strand formed by residues 249 - 258 (chain D) in PDB entry 1LFD


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 GLU 249 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202D  THR*     3.1    22.4    +      -       -      +
    204D  TYR*     2.9    18.3    +      -       -      -
    245D  VAL*     4.2     0.9    -      -       -      -
    246D  ILE      2.8    28.9    +      -       -      +
    247D  ASP      3.4     5.0    +      -       -      +
    248D  GLY*     1.3    75.0    -      -       -      +
    250D  THR*     1.3    64.0    +      -       -      +
    251D  CYS*     3.3    13.2    -      -       -      -
    364D  ARG*     3.0    42.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 250 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201D  MET*     3.6    31.6    -      -       -      +
    202D  THR*     3.8     6.4    +      -       -      -
    243D  GLN*     5.0    10.3    -      -       -      +
    244D  VAL      3.6     5.2    -      -       -      -
    245D  VAL*     3.7    23.6    -      -       +      +
    248D  GLY      3.8     3.6    +      -       -      +
    249D  GLU*     1.3    81.4    -      -       -      +
    251D  CYS*     1.3    61.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 251 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201D  MET*     4.1     5.2    -      -       -      -
    202D  THR      3.4     4.3    -      -       -      -
    204D  TYR*     3.6    22.9    -      -       +      -
    242D  LYS      3.7     0.5    -      -       -      +
    243D  GLN*     3.1    10.4    -      -       -      +
    244D  VAL      2.6    39.0    +      -       -      +
    246D  ILE*     4.0    11.2    -      -       +      -
    249D  GLU*     3.3    37.9    -      -       -      -
    250D  THR*     1.3    73.2    -      -       -      +
    252D  LEU*     1.3    60.3    +      -       -      +
    253D  LEU*     3.8    11.0    -      -       +      -
    364D  ARG*     3.5    15.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 252 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201D  MET*     3.6    29.6    -      -       +      +
    202D  THR      2.8    14.9    +      -       -      +
    203D  GLU*     3.4    35.0    -      -       +      +
    204D  TYR      3.0    24.6    +      -       -      -
    241D  ARG*     3.6    44.0    -      -       +      +
    242D  LYS      4.0     6.7    -      -       -      +
    243D  GLN*     5.1     5.4    -      -       +      +
    251D  CYS*     1.3    70.9    -      -       -      +
    253D  LEU*     1.3    64.1    +      -       -      +
    254D  ASP*     3.8     2.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 253 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204D  TYR*     4.1     9.6    -      -       +      -
    206D  LEU*     3.8    23.1    -      -       +      -
    223D  LEU*     4.6    14.4    -      -       +      -
    241D  ARG*     3.1     8.0    -      -       -      +
    242D  LYS*     2.8    48.7    +      -       +      +
    244D  VAL*     4.2    13.5    -      -       +      -
    246D  ILE*     4.2     4.0    -      -       +      -
    251D  CYS*     4.0    21.8    -      -       +      +
    252D  LEU*     1.3    71.3    -      -       -      +
    254D  ASP*     1.3    61.2    +      -       -      +
    255D  ILE*     3.8     8.2    +      -       +      +
    356D  PHE*     5.4     0.9    -      -       +      -
    357D  TYR*     3.9    30.7    -      -       +      -
    360D  VAL*     4.0    19.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 254 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30C  MET*     6.1     0.5    -      -       -      +
    203D  GLU*     3.1    37.4    -      -       -      +
    204D  TYR      3.0    13.5    +      -       -      +
    205D  LYS*     3.7    12.6    +      -       +      +
    206D  LEU*     2.8    31.4    +      -       -      +
    239D  SER*     5.9     1.3    -      -       -      +
    240D  TYR      3.7     5.2    -      -       -      +
    241D  ARG*     3.7    22.6    -      -       -      +
    252D  LEU*     3.5     7.7    -      -       -      +
    253D  LEU*     1.3    72.3    -      -       -      +
    255D  ILE*     1.3    61.1    +      -       -      +
    256D  LEU      4.0     0.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 255 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206D  LEU*     3.4    15.7    -      -       +      +
    208D  VAL*     3.9    23.8    -      -       +      -
    220D  THR*     3.6    23.6    -      -       +      +
    223D  LEU*     3.6    30.3    -      -       +      -
    224D  ILE*     3.7    20.9    -      -       +      -
    239D  SER*     3.4     5.5    -      -       -      -
    240D  TYR*     2.8    43.1    +      -       +      +
    253D  LEU*     4.4    18.2    -      -       +      +
    254D  ASP*     1.3    76.1    -      -       -      +
    256D  LEU*     1.3    64.0    +      -       -      +
    257D  ASP      3.7     1.0    +      -       -      -
    356D  PHE*     4.0    11.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 256 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31C  TYR*     3.9    14.4    -      -       -      +
    206D  LEU      3.0    14.3    +      -       -      +
    207D  VAL*     3.7    12.5    -      -       +      -
    208D  VAL      3.1    25.0    +      -       -      -
    237D  GLU*     3.8    28.0    -      -       +      +
    238D  ASP      3.5    13.2    -      -       -      +
    239D  SER*     4.3     6.7    -      -       -      +
    254D  ASP      4.0     0.6    +      -       -      -
    255D  ILE*     1.3    73.1    -      -       -      +
    257D  ASP*     1.3    59.8    +      -       -      +
    258D  THR*     3.5    18.8    +      -       +      +
    271D  TYR*     3.6    32.3    -      -       +      -
    274D  THR*     6.0     0.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 257 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208D  VAL*     4.5     6.3    -      -       -      +
    216D  LYS*     3.6    26.9    -      -       -      +
    217D  SER*     2.6    36.5    +      -       -      -
    220D  THR*     4.4     9.9    +      -       +      +
    235D  THR*     3.6     4.5    +      -       -      +
    237D  GLU*     3.5     2.6    -      -       -      +
    238D  ASP*     2.7    61.7    +      -       +      +
    240D  TYR*     4.1    14.3    +      -       +      -
    255D  ILE      3.7     1.8    +      -       -      -
    256D  LEU*     1.3    69.8    -      -       -      +
    258D  THR*     1.3    65.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 258 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207D  VAL*     3.7    27.4    -      -       +      -
    208D  VAL      2.9    20.6    +      -       -      +
    209D  VAL*     3.8     8.3    -      -       -      -
    210D  GLY      4.8     0.2    +      -       -      -
    216D  LYS*     3.3    18.6    -      -       -      -
    235D  THR*     3.7    15.0    -      -       -      -
    236D  ILE      4.6     0.2    -      -       -      -
    237D  GLU*     4.8     5.6    -      -       +      +
    256D  LEU*     3.8    11.0    -      -       +      +
    257D  ASP*     1.3    80.4    +      -       -      +
    259D  ALA*     1.3    65.2    +      -       -      +
    260D  GLY      3.8     0.2    +      -       -      -
    271D  TYR*     3.7    43.1    +      -       +      -
    296D  TYR*     5.7     0.5    -      -       -      -
----------------------------------------------------------
 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