Contacts of the helix formed by residues 373 - 391 (chain B) in PDB entry 1LI5


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 ASP 373 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    369B  LEU*     2.7    19.1    +      -       +      +
    371B  ALA      3.9     0.2    -      -       -      -
    372B  GLU*     1.3    78.7    -      -       +      +
    374B  MET*     1.3    67.9    +      -       -      +
    375B  ALA*     3.1     4.9    -      -       +      +
    376B  ALA*     3.0    18.3    +      -       +      +
    377B  ALA      3.0    17.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 374 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    325B  GLY*     3.1    30.1    -      -       -      +
    326B  THR*     4.8     1.3    -      -       -      +
    327B  ASP      5.5     0.2    -      -       -      +
    369B  LEU      3.8     0.8    +      -       -      -
    370B  LYS*     4.1    39.9    +      -       +      +
    373B  ASP*     1.3    72.0    -      -       -      +
    375B  ALA*     1.3    50.1    -      -       -      +
    377B  ALA*     3.9     8.3    -      -       +      -
    378B  ASN*     2.6    64.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 375 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    330B  VAL*     4.9     2.1    -      -       -      +
    373B  ASP*     3.1     6.2    -      -       +      +
    374B  MET*     1.3    80.1    -      -       -      +
    376B  ALA*     1.3    63.1    +      -       -      +
    378B  ASN*     3.1    20.1    +      -       -      +
    379B  ALA*     3.1    14.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 376 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    333B  ALA      4.7     0.5    -      -       -      +
    369B  LEU*     3.9    25.7    -      -       +      +
    373B  ASP*     3.0    15.3    +      -       +      +
    375B  ALA*     1.3    75.8    -      -       -      +
    377B  ALA*     1.3    61.2    +      -       -      +
    379B  ALA*     3.2     7.8    +      -       -      +
    380B  MET*     2.8    31.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 377 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    326B  THR*     5.3     1.1    -      -       -      +
    366B  VAL*     4.1     9.1    -      -       +      +
    369B  LEU*     3.7    36.0    -      -       +      +
    370B  LYS*     3.8    13.9    -      -       +      +
    373B  ASP      3.0     9.4    +      -       -      +
    374B  MET*     3.3    19.1    -      -       +      +
    376B  ALA*     1.3    76.1    -      -       -      +
    378B  ASN*     1.3    54.6    +      -       -      +
    380B  MET*     3.3     1.6    +      -       -      +
    381B  ALA*     2.7    39.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 378 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    326B  THR*     4.4    11.3    +      -       -      +
    327B  ASP*     3.8    21.1    +      -       -      +
    330B  VAL*     3.6    31.4    -      -       +      +
    374B  MET*     2.6    62.0    +      -       -      +
    375B  ALA*     3.1    12.4    +      -       -      +
    377B  ALA*     1.3    73.2    -      -       -      +
    379B  ALA*     1.3    56.9    +      -       -      +
    381B  ALA*     3.3     2.3    +      -       -      +
    382B  SER*     2.9    31.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 379 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    330B  VAL*     3.9     6.2    -      -       +      +
    331B  ALA      3.6    14.4    -      -       -      +
    333B  ALA*     3.1    45.7    +      -       +      +
    375B  ALA      3.1     9.2    +      -       -      +
    376B  ALA*     3.7     9.9    -      -       -      +
    378B  ASN*     1.3    78.4    -      -       -      +
    380B  MET*     1.3    57.7    +      -       -      +
    382B  SER*     3.4     2.9    +      -       -      -
    383B  HIS*     2.9    21.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 380 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    333B  ALA      3.4     4.0    +      -       -      +
    334B  GLY*     3.1    28.9    -      -       -      +
    335B  GLY*     3.7    21.5    -      -       -      -
    338B  PHE*     4.1    13.2    -      -       +      -
    362B  MET*     3.8    15.9    -      -       +      +
    365B  GLU*     4.1    16.4    -      -       +      +
    366B  VAL*     3.6    19.3    -      -       +      -
    369B  LEU*     3.9    24.7    -      -       +      -
    376B  ALA      2.8    18.0    +      -       -      +
    377B  ALA      3.7     3.1    -      -       -      +
    379B  ALA*     1.3    75.3    -      -       -      +
    381B  ALA*     1.3    59.5    +      -       -      +
    383B  HIS*     3.0     4.4    +      -       -      +
    384B  LEU*     2.8    27.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 381 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    323B  LEU*     5.4     6.3    -      -       +      -
    326B  THR*     3.2    40.6    -      -       +      +
    366B  VAL*     3.9    19.4    -      -       +      +
    377B  ALA      2.7    19.0    +      -       -      +
    378B  ASN      3.6     0.2    -      -       -      +
    380B  MET*     1.3    72.5    -      -       -      +
    382B  SER*     1.3    62.5    +      -       -      +
    384B  LEU*     3.1     7.2    +      -       -      +
    385B  ARG*     3.0    22.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 382 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    326B  THR*     4.8     1.7    -      -       -      +
    327B  ASP      5.3     3.8    -      -       -      -
    328B  LYS*     5.2     6.3    +      -       -      +
    330B  VAL*     2.9    27.9    +      -       -      -
    331B  ALA      4.2     0.4    -      -       -      -
    332B  PRO*     3.1    24.4    -      -       -      +
    378B  ASN      2.9    16.4    +      -       -      -
    379B  ALA      3.5     6.3    -      -       -      -
    381B  ALA*     1.3    78.9    -      -       -      +
    383B  HIS*     1.3    59.8    +      -       -      +
    385B  ARG*     3.3     8.9    +      -       -      +
    386B  LYS*     3.1    20.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 383 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    332B  PRO*     4.0    10.0    -      -       +      +
    333B  ALA*     3.8    19.1    -      -       -      +
    334B  GLY      4.1     0.4    -      -       -      -
    335B  GLY      3.2    34.5    -      -       -      +
    336B  GLU*     3.8    13.4    +      -       -      +
    339B  GLU*     3.0    39.9    +      -       +      -
    362B  MET*     3.6    15.0    -      -       +      +
    379B  ALA      2.9    12.8    +      -       -      +
    380B  MET*     3.0    12.1    +      -       -      +
    382B  SER*     1.3    74.4    -      -       -      +
    384B  LEU*     1.3    65.8    +      -       -      +
    386B  LYS*     3.2    17.5    +      -       +      +
    387B  LEU*     3.2    22.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 384 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    319B  LEU*     5.3     5.2    -      -       +      +
    322B  ALA*     5.6     1.8    -      -       +      -
    323B  LEU*     5.9     5.8    -      -       +      -
    359B  LEU*     3.7    30.3    -      -       +      +
    362B  MET*     3.7    21.5    -      -       +      +
    363B  ALA*     3.7    35.4    -      -       +      +
    366B  VAL*     4.2    11.0    -      -       +      -
    380B  MET      2.8    11.7    +      -       -      +
    381B  ALA*     3.1    10.5    +      -       -      +
    383B  HIS*     1.3    78.3    -      -       -      +
    385B  ARG*     1.3    53.8    +      -       -      +
    387B  LEU*     3.4     1.4    +      -       -      +
    388B  SER*     2.7    49.0    +      -       -      +
    394B  LEU*     4.2    15.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 385 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    381B  ALA      3.0    12.4    +      -       -      +
    382B  SER*     3.6    12.1    -      -       -      +
    383B  HIS      3.2     0.2    -      -       -      -
    384B  LEU*     1.3    75.8    -      -       -      +
    386B  LYS*     1.3    64.1    +      -       -      +
    388B  SER*     4.0     5.5    -      -       -      -
    389B  ALA*     2.9    27.5    +      -       -      +
    393B  LEU      4.9     0.9    -      -       -      +
    394B  LEU*     4.9    15.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 386 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56B  PHE*     3.9    24.4    -      -       +      -
    332B  PRO*     4.7    17.0    -      -       +      +
    339B  GLU*     2.8    31.0    +      -       -      -
    382B  SER      3.1    13.0    +      -       -      +
    383B  HIS*     3.2    26.7    +      -       +      +
    385B  ARG*     1.3    79.9    -      -       -      +
    387B  LEU*     1.3    62.6    +      -       +      +
    389B  ALA*     3.7     9.1    +      -       -      +
    390B  VAL*     3.5    15.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 387 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56B  PHE*     4.0    17.0    -      -       +      -
    338B  PHE*     4.2     2.2    -      -       +      -
    339B  GLU*     3.6    54.3    -      -       +      +
    342B  PHE*     3.5    34.9    -      -       +      -
    358B  VAL*     5.3     0.9    -      -       +      -
    359B  LEU*     4.0    13.5    -      -       +      -
    362B  MET*     3.8    27.8    -      -       +      -
    383B  HIS*     3.2    13.3    +      -       -      +
    384B  LEU      4.0     4.3    -      -       -      +
    386B  LYS*     1.3    80.6    -      -       +      +
    388B  SER*     1.3    64.4    +      -       -      +
    390B  VAL*     3.2    22.1    +      -       -      +
    391B  LEU      3.9     0.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 388 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    359B  LEU*     3.7    19.0    -      -       -      +
    384B  LEU*     2.7    29.7    +      -       -      +
    385B  ARG      4.0     2.2    -      -       -      -
    387B  LEU*     1.3    73.8    -      -       -      +
    389B  ALA*     1.3    60.9    +      -       -      +
    391B  LEU*     2.8    21.5    +      -       -      +
    393B  LEU*     2.9    34.9    +      -       -      -
    394B  LEU*     3.1    30.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 389 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52B  ARG*     3.2    18.5    +      -       -      -
    385B  ARG      2.9    19.5    +      -       -      +
    386B  LYS*     3.8     8.5    -      -       -      +
    387B  LEU      3.2     0.2    -      -       -      -
    388B  SER*     1.3    76.2    -      -       -      +
    390B  VAL*     1.3    56.9    +      -       +      +
    392B  GLY*     2.8    17.4    +      -       -      +
    393B  LEU      3.7     8.0    +      -       -      +
    395B  GLU*     4.4    18.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 390 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49B  VAL*     4.7     3.3    -      -       -      +
     52B  ARG*     3.2    29.8    -      -       -      +
     53B  TYR*     4.0    37.9    -      -       +      +
     56B  PHE*     3.5    43.3    -      -       +      -
    342B  PHE*     4.1    11.0    -      -       +      -
    346B  MET*     5.4     0.2    -      -       +      -
    386B  LYS      3.5    15.9    -      -       -      +
    387B  LEU*     3.3    10.5    -      -       -      +
    388B  SER      3.1     0.4    -      -       -      -
    389B  ALA*     1.3    77.3    -      -       +      +
    391B  LEU*     1.3    62.3    +      -       +      +
    392B  GLY      3.2     0.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 391 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49B  VAL*     3.9    15.7    -      -       +      -
    290B  ARG*     2.9    28.0    +      -       -      +
    294B  MET*     3.1    21.3    -      -       +      +
    342B  PHE*     3.9    20.6    -      -       +      -
    346B  MET*     3.7    32.8    -      -       +      -
    352B  THR*     4.3     7.2    -      -       +      -
    355B  ALA*     4.3     6.7    -      -       +      -
    356B  TYR*     3.9    23.6    -      -       +      -
    359B  LEU*     3.8    27.4    -      -       +      -
    387B  LEU      4.5     0.7    -      -       -      +
    388B  SER      2.8     9.6    +      -       -      +
    390B  VAL*     1.3    78.6    -      -       +      +
    392B  GLY*     1.3    60.2    +      -       -      +
    393B  LEU*     4.1     5.2    -      -       +      -
----------------------------------------------------------
 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