Contacts of the helix formed by residues 358 - 377 (chain A) in PDB entry 3IFS


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 THR 358 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    338A  GLU*     3.9    25.9    +      -       +      +
    339A  LEU      3.1    15.0    -      -       -      +
    340A  THR*     4.0    13.9    -      -       -      +
    341A  ILE*     4.3     2.5    -      -       -      -
    356A  GLY      5.1     2.5    -      -       -      +
    357A  GLU*     1.3    79.2    +      -       -      +
    359A  VAL*     1.3    64.4    +      -       -      +
    360A  ASP*     3.6     4.5    +      -       -      +
    361A  PHE*     3.0    38.4    +      -       -      +
    362A  VAL*     3.4    10.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 359 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    339A  LEU*     2.8    26.3    +      -       +      +
    341A  ILE*     4.2    10.1    -      -       +      +
    358A  THR*     1.3    71.0    -      -       -      +
    360A  ASP*     1.3    62.9    +      -       -      +
    362A  VAL*     3.0    20.2    +      -       -      +
    363A  ASN      3.0     9.5    +      -       -      -
    121B  ILE*     3.6    32.8    -      -       +      +
    123B  SER*     3.8    26.0    -      -       -      +
    126B  MSE      4.2     9.6    -      -       +      -
    154B  LEU*     4.2    11.7    -      -       +      -
    158B  ILE*     3.8    28.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 360 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    275A  GLU*     4.4     5.5    -      -       -      +
    331A  LYS*     5.7     1.2    +      -       -      -
    332A  VAL      5.5     2.8    -      -       -      +
    333A  GLY      4.9     6.6    -      -       -      +
    335A  SER*     3.8    30.9    +      -       -      -
    338A  GLU*     3.7    22.6    -      -       -      +
    339A  LEU      5.7     0.2    -      -       -      +
    358A  THR*     3.2     3.5    +      -       -      +
    359A  VAL*     1.3    79.4    -      -       -      +
    361A  PHE*     1.3    60.2    +      -       -      +
    363A  ASN*     3.3    20.0    +      -       -      +
    364A  THR*     2.9    37.9    +      -       -      -
    121B  ILE      4.9     1.0    -      -       -      +
    122B  SER*     6.2     0.2    -      -       -      -
    123B  SER*     4.1    10.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 361 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    354A  LEU*     4.2     7.9    -      -       +      -
    357A  GLU*     3.7    42.0    -      -       +      +
    358A  THR*     3.0    27.2    +      -       -      +
    360A  ASP*     1.3    75.7    -      -       -      +
    362A  VAL*     1.3    68.0    +      -       +      +
    364A  THR*     3.2     8.0    +      -       -      -
    365A  LYS*     3.1    52.6    +      -       +      +
    432B  LEU      4.4     9.2    -      -       -      -
    433B  LEU*     3.8    28.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 362 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    341A  ILE*     3.8    21.8    -      -       +      -
    354A  LEU*     4.3    10.3    -      -       +      -
    358A  THR      3.7    12.6    -      -       -      +
    359A  VAL      3.0     7.3    +      -       -      +
    361A  PHE*     1.3    78.8    -      -       +      +
    363A  ASN*     1.3    65.1    +      -       -      +
    365A  LYS*     3.2     2.8    +      -       -      +
    366A  ALA*     3.0    22.3    +      -       -      +
    121B  ILE*     3.9    23.6    -      -       +      -
    150B  THR*     4.3    19.3    -      -       +      -
    154B  LEU*     4.5     7.4    -      -       +      -
    429B  MSE      5.1     3.0    -      -       -      +
    433B  LEU*     3.9    29.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 363 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    274A  TYR*     3.1    48.5    +      -       -      +
    275A  GLU*     4.1     9.5    +      -       -      +
    308A  SER      4.9     2.1    +      -       -      -
    331A  LYS*     5.9     0.4    -      -       -      -
    359A  VAL      3.0     7.0    +      -       -      +
    360A  ASP*     3.3    22.3    +      -       -      +
    362A  VAL*     1.3    77.2    -      -       -      +
    364A  THR*     1.3    57.4    +      -       -      +
    366A  ALA*     3.4     4.9    +      -       -      +
    367A  TYR*     3.1    26.7    +      -       -      +
    121B  ILE*     3.2    46.7    +      -       -      +
    122B  SER*     4.7     0.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 364 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    331A  LYS*     4.0    26.7    +      -       -      +
    360A  ASP*     2.9    28.4    +      -       -      -
    361A  PHE*     3.5     7.4    -      -       -      -
    362A  VAL      3.2     0.2    -      -       -      -
    363A  ASN*     1.3    74.1    -      -       -      +
    365A  LYS*     1.3    69.9    +      -       -      +
    367A  TYR*     3.2     8.2    +      -       +      +
    368A  GLU*     3.0    47.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 365 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    361A  PHE*     3.1    42.2    +      -       +      +
    362A  VAL      3.2     0.4    +      -       -      +
    364A  THR*     1.3    82.2    -      -       -      +
    366A  ALA*     1.3    60.9    +      -       -      +
    368A  GLU*     2.8    33.2    +      -       -      +
    369A  GLY*     2.9    27.0    +      -       -      -
    429B  MSE      4.2     6.1    -      -       -      +
    432B  LEU*     3.8    40.9    -      -       +      +
    433B  LEU*     3.8    29.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 366 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    274A  TYR*     4.3    11.0    -      -       +      -
    308A  SER*     5.1     4.7    -      -       -      -
    311A  LEU*     5.8     1.1    -      -       +      -
    362A  VAL      3.0    13.3    +      -       -      +
    363A  ASN*     3.4    10.1    -      -       -      +
    364A  THR      3.2     0.2    -      -       -      -
    365A  LYS*     1.3    78.2    -      -       -      +
    367A  TYR*     1.3    55.4    +      -       -      +
    369A  GLY      3.9     0.2    -      -       -      -
    370A  THR*     2.7    39.8    +      -       -      +
    121B  ILE*     4.0    15.9    -      -       +      -
    425B  TYR*     6.0     0.9    -      -       +      -
    429B  MSE      3.8    28.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 367 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    274A  TYR*     3.5    38.6    +      +       +      -
    329A  VAL*     3.7    24.0    -      -       +      -
    331A  LYS*     3.4    41.8    -      -       +      +
    363A  ASN      3.1    13.2    +      -       -      +
    364A  THR*     3.5    11.2    -      -       +      +
    366A  ALA*     1.3    75.9    -      -       -      +
    368A  GLU*     1.3    78.7    +      -       +      +
    370A  THR*     3.8     1.4    -      -       -      -
    371A  LEU*     2.9    51.8    +      -       +      +
    383A  ILE*     3.1    36.9    -      -       -      +
    385A  ASN*     5.0     0.3    +      -       -      -
    449B  LEU*     6.4     0.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 368 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    364A  THR*     3.0    25.7    +      -       -      +
    365A  LYS*     2.8    40.6    +      -       -      +
    367A  TYR*     1.3    94.3    -      -       +      +
    369A  GLY*     1.3    62.7    +      -       -      +
    371A  LEU*     3.4     4.6    +      -       -      +
    372A  LEU*     3.2    28.9    +      -       -      +
    432B  LEU*     3.8     9.8    -      -       +      +
    449B  LEU*     3.7    41.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 369 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    365A  LYS      2.9    17.6    +      -       -      -
    366A  ALA      3.9     0.2    -      -       -      -
    368A  GLU*     1.3    77.1    -      -       -      +
    370A  THR*     1.3    57.4    +      -       -      +
    372A  LEU*     3.6     1.5    +      -       -      -
    373A  ALA*     3.0    24.8    +      -       -      +
    425B  TYR      4.5     3.8    -      -       -      -
    428B  ASN*     3.1    35.9    +      -       -      +
    429B  MSE      4.3     1.8    -      -       -      -
    432B  LEU*     3.5     9.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 370 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    274A  TYR*     3.4    19.5    -      -       -      +
    307A  PHE*     4.4     1.8    -      -       +      -
    311A  LEU*     3.6    18.4    -      -       +      +
    366A  ALA      2.7    21.5    +      -       -      -
    369A  GLY*     1.3    75.6    -      -       -      +
    371A  LEU*     1.3    60.1    +      -       -      +
    373A  ALA*     3.7     0.2    -      -       -      +
    374A  HIS*     2.8    64.9    +      -       +      +
    425B  TYR*     3.5    29.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 371 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11A  LYS*     3.9    27.8    -      -       +      -
    329A  VAL*     5.0     3.6    -      -       +      -
    367A  TYR*     2.9    36.3    +      -       +      +
    368A  GLU*     3.4     5.6    +      -       -      +
    370A  THR*     1.3    75.8    -      -       -      +
    372A  LEU*     1.3    70.8    +      -       +      +
    374A  HIS*     4.0     1.0    -      -       -      +
    375A  SER*     2.6    43.6    +      -       -      +
    381A  ASN*     3.8    32.2    +      -       +      +
    383A  ILE*     3.8    35.0    -      -       +      -
    449B  LEU*     5.1     5.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 372 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11A  LYS*     5.6     2.9    -      -       +      -
    368A  GLU      3.2    15.7    +      -       -      +
    369A  GLY*     4.1     0.4    -      -       -      +
    371A  LEU*     1.3    90.0    -      -       +      +
    373A  ALA*     1.3    64.9    +      -       -      +
    375A  SER*     3.5     4.4    -      -       -      +
    376A  ASP*     3.0    29.7    +      -       -      +
    428B  ASN*     4.0    11.2    -      -       -      +
    432B  LEU*     5.0     2.0    -      -       +      -
    445B  LEU*     3.7    41.3    -      -       +      +
    448B  ARG*     4.0    39.5    -      -       +      +
    449B  LEU*     3.7    28.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 373 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    319A  GLN*     3.0    32.5    +      -       -      +
    369A  GLY      3.0    19.8    +      -       -      +
    370A  THR      3.3     3.8    +      -       -      +
    372A  LEU*     1.3    75.7    -      -       -      +
    374A  HIS*     1.3    63.0    +      -       +      +
    376A  ASP*     3.2     8.5    +      -       -      +
    377A  GLY      3.0     9.7    +      -       -      -
    424B  ALA*     3.8     6.7    -      -       +      -
    425B  TYR*     3.7    24.5    -      -       +      +
    428B  ASN*     3.4    13.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 374 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    307A  PHE*     3.9     3.8    -      +       -      -
    311A  LEU*     3.7    18.3    -      -       +      +
    315A  GLY*     4.6     4.9    +      -       -      -
    318A  VAL*     3.5    29.8    -      -       +      +
    319A  GLN*     3.3    22.9    -      -       -      +
    327A  GLU*     2.8    34.6    +      -       -      +
    370A  THR*     2.8    47.6    +      -       +      +
    371A  LEU*     4.1     0.4    -      -       -      +
    373A  ALA*     1.3    72.2    -      -       +      +
    375A  SER*     1.3    66.2    +      -       -      +
    377A  GLY*     3.1     8.8    +      -       -      -
    378A  GLY      3.2     0.9    +      -       -      -
    379A  VAL*     2.9    29.2    +      -       +      +
    381A  ASN*     3.8     9.5    +      -       -      +
    425B  TYR*     5.2     3.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 375 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11A  LYS      4.2    12.9    +      -       -      -
     15A  PHE*     3.2    25.5    -      -       -      -
    371A  LEU*     2.6    34.0    +      -       -      +
    372A  LEU*     3.5     8.5    -      -       -      -
    373A  ALA      3.3     0.2    -      -       -      -
    374A  HIS*     1.3    74.7    -      -       -      +
    376A  ASP*     1.3    66.3    +      -       -      +
    378A  GLY      3.1    11.1    +      -       -      -
    379A  VAL      3.4    16.3    +      -       -      -
    381A  ASN*     4.1     6.6    +      -       -      +
    448B  ARG*     4.6     5.8    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 376 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    319A  GLN*     4.8     0.9    -      -       -      +
    372A  LEU      3.0    19.6    +      -       -      +
    373A  ALA*     3.6     7.5    -      -       -      +
    375A  SER*     1.3    76.4    -      -       -      +
    377A  GLY*     1.3    57.5    +      -       -      +
    378A  GLY      3.3     1.6    +      -       -      -
    428B  ASN*     5.2     3.1    +      -       -      -
    448B  ARG*     2.7    43.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 377 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    319A  GLN*     3.7    26.9    -      -       -      +
    323A  ARG*     2.9    30.3    +      -       -      -
    373A  ALA      3.0     9.1    +      -       -      -
    374A  HIS      3.1     6.6    +      -       -      -
    376A  ASP*     1.3    76.4    -      -       -      +
    378A  GLY*     1.3    56.7    +      -       -      +
    379A  VAL      3.7     0.4    -      -       -      -
    297B  GLN*     5.8     1.2    +      -       -      -
----------------------------------------------------------
 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