Contacts of the strand formed by residues 248 - 257 (chain B) in PDB entry 5ISO


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 248 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    243B  SER      4.6     0.9    -      -       -      +
    244B  ILE*     3.6     5.9    -      -       -      +
    245B  LYS      3.3    24.6    +      -       -      +
    246B  ASP*     3.2    22.0    -      -       -      +
    247B  GLY*     1.3    81.5    -      -       -      +
    249B  MET*     1.3    60.3    +      -       -      +
    250B  VAL*     4.3    19.9    -      -       +      +
    267B  TYR*     4.4    12.1    -      -       +      -
    268B  LYS      3.4    11.9    -      -       -      +
    269B  PRO*     4.4     5.8    -      -       +      -
    270B  ILE*     4.9     0.2    -      -       -      -
     55E  LEU*     3.7    18.8    -      -       +      -
     59E  LYS*     3.7    25.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 249 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    544A  ALA*     3.7    34.1    -      -       -      +
    547A  ILE*     3.7    25.8    -      -       +      -
    241B  ALA*     5.3     3.4    -      -       +      -
    242B  LEU      5.2     1.8    -      -       -      +
    244B  ILE*     3.5    33.4    -      -       +      +
    248B  VAL*     1.3    74.8    -      -       -      +
    250B  VAL*     1.3    59.5    +      -       -      +
    251B  LEU*     3.6    30.5    -      -       +      +
    266B  LEU      3.5     1.7    -      -       -      +
    267B  TYR*     3.8     1.0    -      -       -      -
    268B  LYS*     2.8    46.5    +      -       +      +
    270B  ILE*     3.8    20.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 250 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    402A  TRP*     3.4    28.2    -      -       +      -
    241B  ALA*     3.3     7.6    -      -       -      +
    242B  LEU*     3.2    46.4    +      -       +      +
    243B  SER      5.7     0.8    +      -       -      +
    248B  VAL*     4.3    10.5    -      -       +      +
    249B  MET*     1.3    76.7    -      -       -      +
    251B  LEU*     1.3    66.3    +      -       -      +
    265B  LEU*     4.6     1.6    -      -       +      -
    266B  LEU      3.3     8.5    -      -       -      +
    267B  TYR*     3.4    54.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 251 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    402A  TRP*     3.9     2.2    -      -       -      -
    540A  PHE*     3.3    46.6    -      -       +      +
    543A  CYS*     4.5     1.3    -      -       +      -
    544A  ALA*     3.9    20.4    -      -       +      +
    547A  ILE*     4.2     8.1    -      -       +      -
    239B  LEU*     3.9    19.3    -      -       +      -
    240B  TYR      3.4     4.3    -      -       -      +
    241B  ALA*     3.7    15.3    -      -       +      -
    249B  MET*     3.6    30.1    -      -       +      -
    250B  VAL*     1.3    82.8    -      -       -      +
    252B  SER*     1.3    62.1    +      -       -      +
    265B  LEU*     3.2     5.5    -      -       -      +
    266B  LEU*     2.9    36.7    +      -       +      +
    268B  LYS*     6.1     2.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 252 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    402A  TRP*     3.6    22.0    -      -       -      -
    540A  PHE*     3.7     4.7    -      -       -      -
    215B  LEU*     3.6    14.1    -      -       -      +
    239B  LEU*     3.7     2.8    -      -       -      +
    240B  TYR*     2.8    45.5    +      -       -      +
    251B  LEU*     1.3    76.6    -      -       -      +
    253B  ALA*     1.3    64.5    +      -       -      +
    263B  THR*     4.5     4.1    -      -       -      +
    264B  THR      3.0    17.3    -      -       -      -
    265B  LEU*     3.9    10.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 253 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    539A  PHE*     4.4     5.4    -      -       +      -
    540A  PHE*     3.6    11.8    -      -       +      -
    237B  ASN      4.6     1.6    -      -       -      -
    238B  HIS      3.2    24.7    -      -       -      +
    240B  TYR*     4.9     4.0    -      -       -      -
    252B  SER*     1.3    77.7    -      -       -      +
    254B  THR*     1.3    64.0    +      -       -      +
    255B  HIS*     3.6    28.6    +      -       +      +
    262B  VAL      3.7     1.0    -      -       -      +
    263B  THR*     3.3     3.9    -      -       -      -
    264B  THR*     3.0    27.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 254 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    214B  ILE*     4.1    13.1    -      -       +      +
    231B  PRO*     4.1    17.9    -      -       +      -
    235B  MET*     4.4    12.1    +      -       -      -
    236B  LEU*     3.4    31.6    -      -       +      +
    237B  ASN      2.9    28.0    +      -       -      +
    238B  HIS      4.6     1.2    +      -       -      -
    240B  TYR*     5.8     1.2    -      -       -      -
    253B  ALA*     1.3    73.2    -      -       -      +
    255B  HIS*     1.3    64.8    +      -       -      +
    261B  TYR*     4.2     8.7    -      -       +      -
    262B  VAL      3.2     9.4    -      -       -      +
    263B  THR*     2.6    27.2    +      -       -      +
     45E  SER*     5.7     1.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 255 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    471A  SER*     3.1    24.2    +      -       -      -
    535A  HIS*     5.1     9.4    -      +       -      -
    536A  THR*     3.7    38.1    +      -       +      +
    539A  PHE*     4.4     9.6    -      +       -      -
    236B  LEU*     4.7     0.9    -      -       -      -
    237B  ASN*     3.0    31.2    +      -       -      -
    253B  ALA*     3.6    30.4    +      -       +      +
    254B  THR*     1.3    76.4    -      -       -      +
    256B  ARG*     1.3    66.2    +      -       -      +
    257B  TYR      3.8     0.7    +      -       -      -
    261B  TYR*     3.6     1.9    -      -       -      -
    262B  VAL*     2.8    39.5    +      -       +      +
    264B  THR*     5.4     1.8    +      -       -      -
    162E  ASN*     5.5     4.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 256 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134A  MET*     4.1    24.7    -      -       -      +
    166A  ASP*     2.8    49.3    +      -       -      +
    233B  HIS*     4.6     4.0    -      -       -      +
    236B  LEU*     4.3    12.6    -      -       +      +
    237B  ASN*     5.1     1.8    +      -       -      -
    255B  HIS*     1.3    76.0    -      -       -      +
    257B  TYR*     1.3    60.7    +      -       -      +
    258B  LYS*     3.0    31.1    +      -       -      +
    259B  LYS*     5.6     2.1    -      -       -      +
    260B  LYS      3.4     8.5    -      -       -      +
    261B  TYR*     3.8    33.0    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 257 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    255B  HIS      3.8     2.0    +      -       -      -
    256B  ARG*     1.3    72.6    -      -       -      +
    258B  LYS*     1.3    92.0    +      -       +      +
    259B  LYS      3.1     0.5    +      -       -      -
    260B  LYS*     2.8    38.4    +      -       +      +
    262B  VAL*     5.2     5.4    -      -       +      +
     39E  TYR*     3.7    30.1    -      +       -      -
     42E  ILE*     5.4     1.3    -      -       +      -
    134E  PRO*     3.7    22.4    -      -       +      +
    135E  ASN*     4.2    10.0    +      -       -      -
    157E  ASP*     3.4    35.8    +      -       +      -
    159E  GLU*     3.8    13.8    +      -       -      -
    160E  SER*     5.4     1.1    -      -       -      -
    164E  LEU*     3.7    37.0    -      -       +      -
----------------------------------------------------------
 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