Contacts of the strand formed by residues 229 - 234 (chain D) in PDB entry 1GPM


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 LYS 229 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227D  ASP      4.7     4.5    -      -       -      +
    228D  ASP*     1.3    77.3    -      -       -      +
    230D  VAL*     1.3    60.6    +      -       -      +
    254D  ASN*     3.4    22.2    -      -       +      +
    327D  GLU*     3.1    38.3    +      -       -      +
    328D  ASP*     3.0    51.4    +      -       +      +
    329D  VAL*     3.8     8.0    -      -       +      -
    330D  LYS      3.1    23.6    +      -       -      -
    331D  TRP*     3.3     6.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 230 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225D  VAL*     3.7    24.0    -      -       +      -
    229D  LYS*     1.3    77.4    -      -       -      +
    231D  ILE*     1.3    62.4    +      -       -      +
    247D  LEU*     4.4     7.0    -      -       +      -
    251D  ILE*     3.7    26.7    -      -       +      -
    254D  ASN      2.9     9.3    +      -       -      +
    255D  LEU*     3.5    13.2    -      -       +      +
    256D  THR*     3.1    26.7    +      -       -      +
    329D  VAL*     4.6     2.9    -      -       -      -
    331D  TRP*     3.4    26.2    -      -       +      +
    333D  ALA*     3.7    30.7    -      -       +      +
    373D  VAL*     4.8     2.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 231 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230D  VAL*     1.3    73.7    -      -       -      +
    232D  LEU*     1.3    64.8    +      -       -      +
    256D  THR*     3.5     6.5    -      -       -      +
    258D  VAL*     3.6    24.5    -      -       +      -
    319D  PHE*     3.5    25.4    -      -       +      +
    323D  ALA*     3.9    17.9    -      -       +      +
    326D  LEU*     3.7    21.5    -      -       +      -
    329D  VAL*     3.5    22.4    -      -       +      +
    331D  TRP      2.8    20.4    +      -       -      +
    332D  LEU*     3.4    19.2    -      -       +      +
    333D  ALA      2.9    25.1    +      -       -      -
    370D  MET*     4.0    10.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 232 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    231D  ILE*     1.3    77.0    -      -       -      +
    233D  GLY*     1.3    75.8    +      -       -      +
    234D  LEU*     5.1     1.8    -      -       +      -
    240D  SER*     4.2     6.3    -      -       -      +
    243D  THR*     4.0    16.4    -      -       +      -
    244D  ALA*     3.5    42.8    -      -       +      +
    247D  LEU*     4.3     9.6    -      -       +      -
    255D  LEU*     4.0    12.6    -      -       +      -
    256D  THR      3.1     8.2    +      -       -      +
    257D  CYS*     3.2    14.3    -      -       -      -
    258D  VAL      2.8    26.2    +      -       -      -
    319D  PHE*     4.2     3.4    -      -       -      -
    332D  LEU*     4.7     0.7    -      -       -      -
    333D  ALA*     3.2    32.5    -      -       +      +
    334D  GLN*     4.5     4.3    -      -       -      +
    527D  AMP      4.8     3.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 233 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232D  LEU*     1.3    77.3    -      -       -      +
    234D  LEU*     1.3    55.8    +      -       -      -
    240D  SER*     3.7     7.1    -      -       -      -
    258D  VAL      3.5     6.5    -      -       -      -
    315D  PHE*     5.3     0.2    -      -       -      -
    319D  PHE*     3.7    20.0    -      -       -      -
    332D  LEU*     5.0     1.6    -      -       -      +
    333D  ALA      4.5     2.4    +      -       -      -
    527D  AMP      2.7    48.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 234 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232D  LEU*     3.3     2.8    +      -       +      -
    233D  GLY*     1.3    70.3    -      -       -      -
    235D  SER*     1.3    62.3    +      -       -      +
    236D  GLY      4.3     4.9    -      -       -      +
    240D  SER*     4.0    27.8    -      -       -      +
    241D  SER*     4.2    11.4    -      -       -      +
    244D  ALA*     4.4     7.4    -      -       +      -
    257D  CYS*     4.1    29.6    -      -       +      -
    258D  VAL      3.0    12.1    +      -       -      +
    259D  PHE*     3.0    27.6    -      -       +      -
    273D  VAL*     3.7    27.1    -      -       +      -
    277D  PHE*     3.9    27.4    -      -       +      -
    283D  LEU*     5.4     0.2    -      -       +      -
    285D  ILE*     4.3    11.2    -      -       +      -
    527D  AMP      3.0     9.1    -      -       -      -
----------------------------------------------------------
 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