Contacts of the strand formed by residues 519 - 526 (chain A) in PDB entry 2PMF


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 ASN 519 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    300A  PHE*     3.5     3.3    -      -       -      -
    301A  VAL*     2.8    39.7    +      -       +      +
    303A  PRO*     3.8    30.4    -      -       +      +
    306A  LYS*     3.8    28.1    -      -       -      +
    409A  ASP*     4.9     3.0    +      -       -      +
    410A  ARG      3.6    11.9    -      -       -      +
    411A  SER*     3.5    30.8    +      -       -      +
    517A  VAL      3.6     2.7    +      -       -      +
    518A  PRO*     1.3    74.1    -      -       -      +
    520A  VAL*     1.3    59.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 520 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    251A  PHE*     4.6     3.8    -      -       +      -
    298A  GLU*     3.0    29.2    -      -       -      +
    299A  HIS      3.2    16.2    -      -       -      +
    300A  PHE*     4.0    24.0    -      -       +      -
    408A  ALA      3.4     3.5    -      -       -      +
    410A  ARG*     3.1    39.3    +      -       +      +
    413A  TYR*     3.8    33.2    -      -       +      -
    518A  PRO      4.7     1.3    -      -       -      +
    519A  ASN*     1.3    74.7    -      -       -      +
    521A  ILE*     1.3    68.6    +      -       -      +
    522A  GLU*     4.7     4.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 521 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    299A  HIS*     2.9    41.2    +      -       +      +
    301A  VAL*     3.9     6.5    -      -       +      -
    306A  LYS*     3.0    34.1    -      -       -      +
    351A  VAL*     3.8    19.3    -      -       +      -
    352A  LEU*     4.5    11.7    -      -       +      -
    355A  PHE*     3.8    25.4    -      -       +      -
    407A  CYS*     4.1    17.3    -      -       -      -
    408A  ALA      3.3     6.3    -      -       -      +
    409A  ASP*     3.6    21.8    -      -       +      +
    520A  VAL*     1.3    74.3    -      -       -      +
    522A  GLU*     1.3    61.8    +      -       -      +
    523A  PRO*     3.4    12.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 522 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    247A  ALA*     4.0     6.6    -      -       -      +
    251A  PHE*     4.0     6.6    -      -       -      -
    296A  GLU*     4.5    11.1    -      -       -      +
    297A  ILE      3.0     6.3    -      -       -      +
    298A  GLU*     2.9    41.7    -      -       -      +
    406A  GLY      3.4     8.1    -      -       -      +
    407A  CYS*     4.3     0.4    -      -       -      -
    408A  ALA*     3.0    29.2    +      -       +      +
    410A  ARG*     3.1    42.4    +      -       -      +
    520A  VAL*     4.7     4.0    -      -       +      +
    521A  ILE*     1.3    74.4    -      -       -      +
    523A  PRO*     1.3    64.3    -      -       -      +
    524A  SER*     3.5     7.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 523 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    296A  GLU*     3.8     0.7    -      -       -      -
    297A  ILE*     3.0    60.9    +      -       +      +
    355A  PHE*     4.3    16.6    -      -       +      -
    359A  ILE*     3.8    27.1    -      -       +      -
    406A  GLY      3.1     7.6    -      -       -      +
    407A  CYS*     4.1     6.0    -      -       -      -
    521A  ILE*     3.4    18.2    -      -       +      +
    522A  GLU*     1.3    83.7    -      -       -      +
    524A  SER*     1.3    59.7    +      -       -      +
    525A  PHE*     3.8    15.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 524 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    294A  MET*     4.9     6.7    -      -       -      -
    295A  ALA      3.5     3.8    -      -       -      -
    296A  GLU*     3.4    31.4    -      -       -      -
    403A  GLU*     4.6     1.7    +      -       -      +
    405A  VAL*     3.3     4.4    -      -       -      -
    406A  GLY*     2.6    46.3    +      -       -      -
    522A  GLU*     3.5     8.9    +      -       -      -
    523A  PRO*     1.3    72.4    -      -       -      +
    525A  PHE*     1.3    62.7    +      -       -      +
    526A  ARG*     3.9     2.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 525 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    111A  TRP*     3.3    41.3    -      +       -      +
    115A  PHE*     3.4    28.5    -      +       -      -
    294A  MET*     3.1    22.0    -      -       -      +
    295A  ALA*     2.7    38.1    +      -       +      +
    297A  ILE*     4.3     3.4    -      -       +      -
    359A  ILE*     3.8    19.7    -      -       +      -
    362A  TYR*     4.2     9.6    -      +       -      -
    404A  ILE      4.0     2.2    -      -       -      -
    405A  VAL*     3.6    25.4    -      -       +      -
    523A  PRO*     3.8    23.1    -      -       +      -
    524A  SER*     1.3    76.0    -      -       -      +
    526A  ARG*     1.3    59.1    +      -       -      +
    527A  LEU*     3.2     8.5    +      -       +      -
    530A  ILE*     4.0    15.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 526 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    277A  ARG*     3.6    26.5    -      -       -      +
    287A  ILE      3.7     6.7    +      -       -      -
    289A  VAL*     4.1     7.3    +      -       -      +
    292A  PHE*     3.7    40.1    -      -       -      -
    293A  THR      4.7     0.9    -      -       -      -
    294A  MET*     4.2    13.2    -      -       -      -
    403A  GLU*     4.2    23.2    +      -       -      +
    404A  ILE      2.8    21.5    +      -       -      +
    524A  SER      3.9     1.5    +      -       -      +
    525A  PHE*     1.3    68.7    -      -       -      +
    527A  LEU*     1.3    60.4    +      -       -      +
    528A  GLY      3.3     2.7    -      -       -      -
    529A  ARG*     3.1    54.0    +      -       -      +
    530A  ILE*     2.9    29.9    +      -       -      +
    901A   CL      3.2    21.8    -      -       +      +
----------------------------------------------------------
 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