Contacts of the strand formed by residues 258 - 269 (chain B) in PDB entry 1PO3


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 PHE 258 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    254B  ALA*     3.2    25.0    +      -       +      +
    256B  ASN*     3.1    20.0    +      -       -      +
    257B  GLY*     1.3    76.1    -      -       -      +
    259B  GLY*     1.3    69.2    +      -       -      +
    260B  THR*     3.9    21.3    -      -       -      -
    287B  SER*     4.7     9.4    -      -       -      -
    288B  LYS      3.8     1.3    -      -       -      -
    289B  TYR*     3.8    34.5    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 259 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219B  ILE*     4.1     6.5    -      -       -      -
    252B  GLY      3.1    15.7    -      -       -      -
    253B  THR*     3.8    10.5    -      -       -      +
    257B  GLY      3.8     1.4    +      -       -      -
    258B  PHE*     1.3    79.7    -      -       -      +
    260B  THR*     1.3    68.7    +      -       -      -
    287B  SER*     3.4     1.7    -      -       -      -
    288B  LYS*     3.0    36.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 260 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219B  ILE*     3.3     5.8    -      -       -      +
    251B  GLY*     2.9    19.8    -      -       -      -
    252B  GLY      3.0    11.2    +      -       -      -
    258B  PHE*     3.9    15.6    -      -       -      -
    259B  GLY*     1.3    74.5    +      -       -      -
    261B  ALA*     1.3    72.6    +      -       -      +
    285B  LEU*     5.0    12.1    -      -       +      -
    286B  LYS      3.0    10.8    -      -       -      +
    287B  SER*     2.7    22.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 261 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217B  ARG      5.7     0.4    -      -       -      +
    218B  ALA      5.4     0.9    -      -       -      +
    219B  ILE*     3.3    24.0    -      -       +      -
    220B  PRO*     4.1     5.4    -      -       +      -
    250B  VAL      3.1     9.0    -      -       -      +
    251B  GLY*     3.4    13.7    -      -       -      +
    260B  THR*     1.3    82.1    -      -       -      +
    262B  LEU*     1.3    64.2    +      -       -      +
    263B  LEU*     3.9     9.4    -      -       +      -
    285B  LEU*     3.6     8.1    -      -       -      +
    286B  LYS*     2.6    36.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 262 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    248B  LEU*     3.6    15.9    -      -       +      +
    249B  MET*     3.5     7.4    -      -       -      -
    250B  VAL*     2.5    41.9    +      -       +      +
    261B  ALA*     1.3    72.8    -      -       -      +
    263B  LEU*     1.3    63.1    +      -       -      +
    264B  TYR*     3.8    26.0    -      -       +      +
    283B  LEU*     3.3    28.5    -      -       +      -
    284B  MET      3.7     4.9    -      -       -      +
    285B  LEU*     3.8    17.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 263 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    188B  ASN*     3.6    28.0    +      -       +      +
    216B  THR*     4.1     5.8    -      -       +      -
    217B  ARG*     3.9    37.9    -      -       +      +
    248B  LEU      5.2     0.2    -      -       -      +
    249B  MET*     4.9     9.0    -      -       -      -
    250B  VAL      5.6     0.2    -      -       -      +
    261B  ALA*     3.9     7.7    +      -       +      -
    262B  LEU*     1.3    78.5    -      -       -      +
    264B  TYR*     1.3    57.3    +      -       -      +
    284B  MET*     2.7    78.8    +      -       +      +
    286B  LYS*     4.2    20.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 264 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    188B  ASN*     3.1    12.1    +      -       -      +
    246B  HIS*     3.3    35.1    +      +       -      -
    247B  ASN*     3.6     1.6    -      -       -      +
    248B  LEU*     3.1    53.8    +      -       +      +
    262B  LEU*     3.7    19.9    +      -       +      -
    263B  LEU*     1.3    73.7    -      -       -      +
    265B  SER*     1.3    84.5    +      -       -      +
    266B  GLY*     3.9     1.4    -      -       -      -
    268B  ARG*     4.0     4.5    +      -       -      -
    281B  ASP*     2.6    32.2    +      -       +      -
    282B  ASP      3.4    17.3    -      -       -      -
    283B  LEU*     4.1    13.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 265 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    185B  SER*     4.0    15.9    -      -       -      -
    187B  GLY*     3.2    23.0    +      -       -      -
    188B  ASN*     3.3    24.7    -      -       -      -
    246B  HIS      3.4    11.8    +      -       -      -
    247B  ASN*     4.4     0.4    -      -       -      +
    264B  TYR*     1.3    85.8    -      -       -      +
    266B  GLY*     1.3    61.5    +      -       -      +
    280B  ILE*     5.0     0.8    -      -       -      +
    282B  ASP*     2.8    30.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 266 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    245B  THR*     3.3     3.3    -      -       -      -
    246B  HIS*     2.9    50.0    +      -       -      +
    264B  TYR*     3.9     4.5    -      -       -      -
    265B  SER*     1.3    78.2    +      -       -      +
    267B  THR*     1.3    69.4    +      -       -      -
    268B  ARG*     4.4     0.2    -      -       -      -
    280B  ILE*     3.0    12.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 267 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119B  THR*     6.0     1.4    -      -       -      +
    142B  ASP*     4.5    12.8    -      -       +      +
    243B  LYS*     4.9     5.8    -      -       -      -
    244B  GLU*     3.5    12.8    +      -       -      +
    245B  THR*     3.8    14.7    -      -       +      +
    266B  GLY*     1.3    78.8    +      -       -      -
    268B  ARG*     1.3    78.5    +      -       -      +
    278B  THR*     4.1    24.2    -      -       +      -
    279B  ARG*     3.5     2.1    -      -       -      -
    280B  ILE*     2.7    52.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 268 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    242B  PRO      4.3     0.2    -      -       -      +
    243B  LYS*     3.9     0.2    -      -       -      -
    244B  GLU*     2.7    52.6    +      -       +      +
    246B  HIS*     4.2     9.3    +      -       +      -
    264B  TYR*     4.0     7.3    +      -       -      -
    267B  THR*     1.3    94.2    +      -       -      +
    269B  GLY*     1.3    59.2    +      -       -      +
    278B  THR      3.3     5.4    -      -       -      -
    279B  ARG*     3.8    23.8    -      -       -      +
    280B  ILE      3.3     9.1    +      -       -      -
    281B  ASP*     2.9    39.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 269 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    241B  ASN*     6.0     0.7    -      -       -      -
    242B  PRO      3.4    13.7    -      -       -      -
    243B  LYS*     3.9     8.1    -      -       -      -
    268B  ARG*     1.3    76.9    -      -       -      +
    270B  SER*     1.3    65.0    +      -       -      -
    277B  ALA*     3.3     1.1    -      -       -      -
    278B  THR*     2.7    40.9    +      -       -      +
----------------------------------------------------------
 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