Contacts of the strand formed by residues 154 - 163 (chain L) in PDB entry 1N13


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 GLY 154 (chain L).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25K  SER      3.2     9.0    -      -       -      -
     26K  GLU*     3.7    12.5    +      -       -      -
     33K  ALA*     4.4     3.1    -      -       -      -
     81L  ILE*     3.3     6.2    -      -       -      +
     82L  SER      2.9    33.6    +      -       -      -
     89L  ILE*     3.5     7.4    -      -       -      +
    148L  HIS*     3.9     9.2    -      -       -      -
    150L  VAL*     3.8     3.9    -      -       -      +
    153L  LEU*     1.3    75.7    -      -       -      +
    155L  CYS*     1.3    60.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 155 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24K  SER*     3.0    28.2    -      -       -      -
     25K  SER      2.8    12.4    +      -       -      -
     33K  ALA*     3.7    26.9    -      -       +      +
     34K  PHE*     3.8    24.2    -      -       -      -
     37K  ALA*     3.8    16.6    -      -       -      +
     79L  TYR*     4.5     2.7    -      -       -      -
     80L  ILE      3.2    11.9    -      -       -      +
     81L  ILE*     4.0    13.5    -      -       +      -
     89L  ILE*     4.0     2.6    -      -       -      +
    148L  HIS*     4.3     2.9    -      -       -      +
    154L  GLY*     1.3    74.8    -      -       -      +
    156L  ALA*     1.3    69.6    +      -       -      +
    157L  PHE*     4.5     1.8    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 156 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23K  GLY      3.8     3.8    -      -       -      -
     24K  SER*     4.2     1.8    -      -       -      -
     79L  TYR*     3.2     6.9    -      -       -      +
     80L  ILE*     3.0    45.0    +      -       +      +
     89L  ILE*     3.8    27.1    -      -       +      +
     90L  SER*     3.9    12.6    -      -       -      -
     91L  ALA*     3.7     4.2    -      -       +      +
    146L  VAL*     4.3     7.9    -      -       +      +
    148L  HIS*     4.5     5.6    -      -       +      -
    155L  CYS*     1.3    72.9    -      -       -      +
    157L  PHE*     1.3    60.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 157 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21K  VAL*     4.5     1.3    -      -       +      -
     22K  ALA*     3.2     2.6    -      -       -      -
     23K  GLY      2.9    38.0    +      -       -      +
     34K  PHE*     4.0    12.3    -      +       -      -
     37K  ALA*     3.9    15.0    -      -       +      -
     38K  LEU*     3.5    32.5    -      -       +      -
     41K  ALA*     4.1    17.7    -      -       +      -
     43K  ILE*     3.6    26.2    -      -       +      -
     48K  LEU*     3.8     9.4    -      -       +      -
     77L  TYR*     3.6    28.5    -      +       +      -
     78L  GLY      3.5    11.0    -      -       -      -
     79L  TYR*     4.1     4.5    -      -       +      -
     91L  ALA*     3.8     3.7    -      -       -      +
    146L  VAL*     3.3     5.3    -      -       -      +
    155L  CYS*     4.5     2.0    -      -       -      -
    156L  ALA*     1.3    75.8    -      -       -      +
    158L  ALA*     1.3    63.4    +      -       -      +
    159L  ALA*     3.5    23.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 158 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21K  VAL      3.4     8.7    -      -       -      +
     22K  ALA*     4.2     6.7    -      -       +      -
     77L  TYR*     3.2     4.4    -      -       -      +
     78L  GLY      2.9    32.9    +      -       -      +
     91L  ALA*     3.7     5.2    -      -       +      +
     92L  ALA*     3.6    42.8    -      -       -      +
     93L  ILE*     3.9     8.8    -      -       +      +
    144L  ILE      4.6     0.9    -      -       -      +
    157L  PHE*     1.3    77.5    -      -       -      +
    159L  ALA*     1.3    62.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 159 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19K  SER      3.6     0.2    -      -       -      +
     20K  LEU*     3.3     4.2    -      -       -      -
     21K  VAL*     2.8    45.1    +      -       +      +
     43K  ILE*     4.5     0.7    -      -       +      -
     75L  THR*     3.5    12.6    -      -       +      -
     76L  ALA      3.2    11.7    -      -       -      +
     77L  TYR*     3.5     4.3    -      -       +      -
     93L  ILE*     3.7    10.8    -      -       -      +
    157L  PHE*     3.5    26.9    -      -       +      -
    158L  ALA*     1.3    76.3    -      -       -      +
    160L  ALA*     1.3    61.2    -      -       -      +
    161L  ALA      4.0     0.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 160 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18K  VAL*     3.9    12.8    -      -       +      -
     19K  SER      3.3     6.5    -      -       -      -
     20K  LEU*     3.7    18.8    -      -       +      -
     75L  THR*     3.5     3.8    -      -       -      -
     76L  ALA*     2.8    30.7    +      -       +      +
     93L  ILE*     3.9     2.4    -      -       +      +
    107L  ILE*     3.8    32.1    -      -       +      -
    159L  ALA*     1.3    73.4    -      -       -      +
    161L  ALA*     1.3    61.8    +      -       -      +
    162L  LEU*     3.6     5.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 161 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17K  THR      3.8     0.5    -      -       -      +
     18K  VAL*     3.3     2.9    -      -       -      -
     19K  SER*     2.8    42.3    +      -       -      +
     21K  VAL*     5.3     4.7    -      -       +      -
     43K  ILE*     5.1     9.2    -      -       +      -
     48K  LEU*     5.9     0.2    -      -       +      -
     64L  LEU*     4.6    19.1    -      -       +      -
     67L  LEU*     5.6     1.8    -      -       +      -
     73L  VAL*     3.9    18.4    -      -       +      -
     74L  PRO      3.9     4.0    -      -       -      -
     75L  THR*     4.1     9.9    -      -       +      +
    159L  ALA      4.0     0.6    -      -       -      -
    160L  ALA*     1.3    71.4    -      -       -      +
    162L  LEU*     1.3    63.4    +      -       -      +
    163L  TRP*     3.9     3.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 162 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47I  ASN*     3.9     9.2    -      -       -      +
     72J  LEU*     4.6     2.5    -      -       +      -
     15K  PRO*     3.8    28.2    -      -       +      +
     17K  THR      3.3     9.6    -      -       -      +
     18K  VAL*     4.2     7.6    -      -       +      -
     51K  ILE*     3.8    30.5    -      -       +      -
     54L  ILE      3.9    17.0    -      -       -      +
     55L  MET*     5.6     0.4    -      -       -      -
     56L  PRO*     4.4    10.3    -      -       +      -
     73L  VAL*     3.5     7.1    -      -       -      +
     74L  PRO*     2.9    41.2    +      -       +      +
    107L  ILE*     4.1    16.6    -      -       +      -
    160L  ALA      3.6    15.9    -      -       -      +
    161L  ALA*     1.3    72.8    -      -       -      +
    163L  TRP*     1.3    63.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 163 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12G  PHE*     4.6     6.1    -      +       -      -
     14G  LEU*     5.9     0.2    -      -       +      -
      9I  HIS*     4.0    27.4    -      +       -      -
     11K  TYR*     3.6    32.9    +      +       -      -
     15K  PRO*     3.3     3.7    -      -       -      +
     16K  ASN      2.9    25.3    +      -       -      -
     17K  THR*     2.9    25.2    +      -       -      +
     65L  PRO*     4.0    17.5    -      -       +      -
     66L  LYS      5.4     1.4    +      -       -      -
     67L  LEU*     3.4    30.2    -      -       +      +
     68L  PRO*     4.3    14.1    -      -       +      +
     71L  ALA*     3.9    24.0    -      -       +      -
     72L  LEU      3.7    22.0    -      -       -      -
     73L  VAL*     4.1    15.5    -      -       +      -
     74L  PRO*     4.5     2.0    -      -       +      -
    161L  ALA*     3.9     3.5    +      -       +      +
    162L  LEU*     1.3    84.3    -      -       -      +
    164L  TYR*     1.3    90.2    +      +       -      +
----------------------------------------------------------
 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