Contacts of the helix formed by residues 144 - 155 (chain L) in PDB entry 5AYZ


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 144 (chain L).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141K  THR*     3.6    19.3    -      -       +      -
    142K  PRO*     3.6    43.1    -      -       +      +
     18L  LEU*     6.4     0.7    -      -       -      -
     22L  TRP*     3.7    21.5    -      +       -      -
    107L  THR*     4.0    13.9    -      -       +      -
    110L  ARG*     4.0    19.7    -      -       +      -
    141L  THR*     2.9    23.7    +      -       +      +
    142L  PRO      4.6     0.7    -      -       -      +
    143L  GLY*     1.3    77.4    -      -       -      +
    145L  ARG*     1.3    65.3    -      -       -      +
    146L  LEU      3.2     2.7    -      -       -      -
    147L  VAL*     3.1    51.4    +      -       +      +
    148L  GLU*     3.2    29.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 145 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25K  GLU*     3.1    32.1    +      -       +      +
     26K  ASP*     2.2    53.4    +      -       -      +
    102K  ARG*     5.3     0.2    -      -       -      +
    103K  VAL*     6.1     0.8    -      -       -      +
    106K  ASN*     4.6     4.2    -      -       -      +
    138L  ARG*     3.5    26.1    +      -       -      +
    140L  THR*     2.7    53.0    +      -       -      +
    141L  THR      3.7     2.2    +      -       -      -
    144L  PHE*     1.3    76.3    -      -       -      +
    146L  LEU*     1.3    59.3    +      -       -      +
    148L  GLU      3.1     0.6    +      -       -      +
    149L  LYS*     2.8    47.8    +      -       +      +
    162L  TYR*     3.0    39.1    +      -       +      +
    163L  ASP*     3.9     4.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 146 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29H  GLY*     4.3    12.6    -      -       -      +
     30H  LEU*     3.7    29.6    -      -       +      -
     25K  GLU*     4.6     1.6    +      -       -      -
     10L  LEU*     3.8    22.0    -      -       +      -
     11L  PRO*     4.9     4.7    -      -       +      -
     14L  THR*     4.2    19.7    -      -       +      -
     15L  LEU*     4.8     6.7    -      -       +      +
     18L  LEU*     3.8    30.3    -      -       +      -
     59L  PHE*     3.8    10.0    -      -       +      -
    144L  PHE      3.2     0.6    -      -       -      -
    145L  ARG*     1.3    78.0    -      -       -      +
    147L  VAL*     1.3    62.2    +      -       -      +
    149L  LYS*     4.6     0.2    -      -       -      +
    150L  TYR*     3.2    24.9    +      -       -      +
    162L  TYR*     3.3    25.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 147 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18L  LEU*     5.4     0.9    -      -       +      -
     22L  TRP*     3.4    34.5    -      -       +      -
     59L  PHE*     3.6    23.1    -      -       +      -
    107L  THR*     3.9     8.3    -      -       +      +
    111L  CYS*     3.7    33.7    -      -       +      -
    144L  PHE*     3.1    41.7    +      -       +      +
    146L  LEU*     1.3    79.5    -      -       +      +
    148L  GLU*     1.3    57.4    +      -       +      +
    150L  TYR*     3.6     2.1    -      -       -      +
    151L  GLY*     2.9    24.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 148 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110K  ARG*     4.4     0.2    +      -       -      -
    141K  THR*     5.3     0.5    -      -       -      +
    110L  ARG*     5.6     2.6    -      -       -      +
    111L  CYS*     5.9     0.7    -      -       -      +
    114L  ILE*     3.6    36.7    -      -       +      +
    140L  THR*     3.1    18.2    -      -       +      +
    141L  THR*     2.8    46.4    +      -       -      +
    144L  PHE*     3.4    32.4    -      -       +      +
    145L  ARG      3.1     5.7    +      -       -      +
    147L  VAL*     1.3    74.5    -      -       -      +
    149L  LYS*     1.3    66.2    +      -       -      +
    151L  GLY*     3.4     0.6    +      -       -      +
    152L  LEU*     3.1    26.8    +      -       -      +
    273L  THR*     4.4    17.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 149 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30H  LEU*     4.9     3.6    -      -       +      -
    137L  THR*     2.6    35.3    +      -       -      +
    138L  ARG*     4.2     1.3    -      -       -      +
    140L  THR*     4.2     4.9    -      -       +      -
    145L  ARG*     2.8    51.9    +      -       +      +
    146L  LEU      4.6     0.4    -      -       -      +
    148L  GLU*     1.3    69.9    -      -       -      +
    150L  TYR*     1.3    65.8    +      -       -      +
    152L  LEU*     3.3    14.2    +      -       +      +
    153L  LEU*     3.2    24.9    +      -       -      +
    159L  SER*     2.8    41.1    +      -       -      +
    160L  HIS*     4.4     0.6    -      -       -      +
    161L  ARG      3.1    23.1    +      -       -      +
    162L  TYR*     3.9    24.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 150 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30H  LEU*     5.3     6.6    -      -       +      +
      3L  ALA      4.5     0.3    +      -       -      -
      6L  LEU*     3.8    37.8    -      -       +      +
      7L  ALA*     4.0     7.3    +      -       -      +
      9L  LEU*     5.5     2.7    -      -       +      -
     10L  LEU*     4.0    22.0    -      -       +      -
     56L  GLY*     3.9    11.7    -      -       -      -
     58L  PRO*     3.5    16.4    -      -       +      +
     59L  PHE*     3.7    21.3    -      +       +      -
     77L  GLU*     2.5    39.2    +      -       -      +
    111L  CYS*     3.9     7.4    -      -       -      -
    146L  LEU      3.2    19.9    +      -       -      +
    147L  VAL      3.6     1.1    -      -       -      +
    149L  LYS*     1.3    79.0    -      -       -      +
    151L  GLY*     1.3    63.3    +      -       -      +
    153L  LEU*     3.0    14.6    +      -       +      +
    154L  VAL*     3.0    35.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 151 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    111L  CYS*     3.9    25.8    -      -       -      -
    114L  ILE*     4.0     9.6    -      -       -      -
    115L  ALA*     3.3    13.7    -      -       -      +
    147L  VAL      2.9    16.8    +      -       -      -
    148L  GLU      3.4     2.9    +      -       -      -
    149L  LYS      3.3     0.2    -      -       -      -
    150L  TYR*     1.3    74.5    -      -       -      +
    152L  LEU*     1.3    64.7    +      -       -      +
    154L  VAL*     3.2     3.5    +      -       -      -
    155L  GLY      3.2    17.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 152 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114L  ILE*     3.8    12.9    -      -       +      +
    118L  ALA*     3.9     9.6    -      -       +      +
    136L  GLY*     3.7    26.7    -      -       -      +
    137L  THR      4.7     0.9    -      -       -      +
    148L  GLU      3.1    20.0    +      -       -      +
    149L  LYS*     3.4    17.3    -      -       +      +
    150L  TYR      3.3     0.2    -      -       -      -
    151L  GLY*     1.3    76.9    -      -       -      +
    153L  LEU*     1.3    62.5    +      -       -      +
    155L  GLY*     3.4     5.5    +      -       -      -
    156L  GLY      3.4     0.2    +      -       -      -
    157L  ALA*     3.0    34.3    +      -       +      +
    158L  ALA      4.5     3.6    -      -       -      +
    159L  SER*     4.1    18.6    -      -       -      +
    272L  LEU*     3.8    39.7    -      -       +      -
    273L  THR*     4.4    11.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 153 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    191G  ALA      6.1     0.7    -      -       -      +
     30H  LEU*     4.3    15.0    -      -       +      -
     32H  TYR*     5.7     2.9    -      -       +      -
      6L  LEU*     3.8    26.0    -      -       +      +
      9L  LEU*     3.5    32.5    -      -       +      -
    149L  LYS      3.2    12.5    +      -       -      +
    150L  TYR*     3.0    14.1    +      -       +      +
    152L  LEU*     1.3    76.0    -      -       -      +
    154L  VAL*     1.3    67.9    +      -       -      +
    156L  GLY*     2.9    15.4    +      -       -      -
    157L  ALA      3.5    16.8    -      -       -      +
    158L  ALA*     4.5     2.0    -      -       -      -
    159L  SER*     3.9    20.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 154 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3L  ALA*     4.1    13.5    -      -       +      +
      6L  LEU*     4.0    14.4    -      -       +      -
     53L  VAL*     4.2     8.1    -      -       +      +
     54L  LEU      3.7    13.9    -      -       -      +
     55L  ALA*     3.4    30.5    -      -       +      -
     77L  GLU*     4.0     6.1    -      -       +      +
     78L  GLY*     3.8    16.6    -      -       -      +
    150L  TYR*     3.0    51.9    +      -       +      +
    151L  GLY      3.2     3.6    +      -       -      +
    153L  LEU*     1.3    75.2    -      -       -      +
    155L  GLY*     1.3    57.4    +      -       -      +
    156L  GLY      3.3     4.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 155 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53L  VAL*     4.8     3.6    -      -       -      -
    115L  ALA*     3.5    25.4    -      -       -      +
    118L  ALA*     3.5     4.6    -      -       -      +
    119L  ALA*     3.2    31.5    +      -       -      +
    122L  VAL*     4.2     3.1    -      -       -      +
    151L  GLY      3.2    11.6    +      -       -      -
    152L  LEU      3.4     3.3    +      -       -      -
    153L  LEU      3.2     0.2    -      -       -      -
    154L  VAL*     1.3    75.2    -      -       -      +
    156L  GLY*     1.3    58.7    +      -       -      +
    157L  ALA      3.4     2.9    -      -       -      -
----------------------------------------------------------
 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