Contacts of the helix formed by residues 286 - 312 (chain C) in PDB entry 1T2K


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 286 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    282C  GLU*     2.9    32.3    +      -       +      +
    283C  LYS*     2.9    23.4    +      -       -      +
    285C  LYS*     1.3    76.5    -      -       +      +
    287C  LEU*     1.3    63.6    +      -       -      +
    289C  ALA*     3.5     4.5    +      -       -      +
    290C  GLN*     2.9    33.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 287 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    283C  LYS*     2.8    37.3    +      -       +      +
    284C  VAL*     3.9     2.0    -      -       -      +
    286C  THR*     1.3    83.3    +      -       -      +
    288C  LYS*     1.3    61.7    +      -       -      +
    290C  GLN*     4.2     3.9    -      -       -      +
    291C  ASN*     2.9    32.9    +      -       -      +
    366D  ALA*     3.5    15.0    -      -       +      +
    369D  LEU*     3.2    24.1    -      -       +      +
    370D  SER*     3.0    44.0    -      -       -      +
    373D  ASN*     4.5     8.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 288 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    284C  VAL*     3.1    19.3    +      -       +      +
    285C  LYS*     4.3     3.6    -      -       -      +
    286C  THR      3.5     0.2    -      -       -      -
    287C  LEU*     1.3    77.0    -      -       -      +
    289C  ALA*     1.3    58.8    +      -       -      +
    291C  ASN*     3.3    14.1    +      -       -      +
    292C  SER*     3.1    29.4    +      -       -      -
    365D  LYS*     4.2    19.3    -      -       +      +
    369D  LEU*     3.5    26.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 289 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    285C  LYS      3.4    17.0    +      -       -      +
    286C  THR*     3.8     4.5    -      -       -      +
    287C  LEU      3.2     0.2    -      -       -      -
    288C  LYS*     1.3    76.9    -      -       -      +
    290C  GLN*     1.3    66.4    +      -       -      +
    292C  SER*     3.1    18.1    +      -       -      -
    293C  GLU*     3.6    10.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 290 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    286C  THR*     2.9    19.1    +      -       -      +
    287C  LEU*     4.2     2.9    -      -       -      +
    289C  ALA*     1.3    77.4    -      -       -      +
    291C  ASN*     1.3    63.1    +      -       -      +
    293C  GLU*     3.2    31.0    +      -       -      +
    294C  LEU*     3.2    25.4    +      -       +      +
    373D  ASN*     3.5    29.9    +      -       -      +
    377D  GLN*     4.0    16.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 291 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    287C  LEU      2.9    20.4    +      -       -      +
    288C  LYS*     3.3    21.1    +      -       -      +
    290C  GLN*     1.3    75.7    -      -       -      +
    292C  SER*     1.3    90.7    +      -       -      +
    294C  LEU*     3.3     8.1    +      -       -      +
    295C  ALA*     3.0    20.3    +      -       -      +
    369D  LEU*     5.0     9.9    -      -       +      +
    372D  LEU*     4.2    19.6    -      -       -      +
    373D  ASN*     4.0    20.4    +      -       +      +
    376D  LEU*     3.6    13.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 292 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    288C  LYS*     3.1    11.7    +      -       -      -
    289C  ALA*     3.1    15.6    +      -       -      -
    291C  ASN*     1.3    86.7    -      -       -      +
    293C  GLU*     1.3    55.6    +      -       -      +
    295C  ALA*     3.2    14.7    +      -       -      +
    296C  SER*     2.8    26.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 293 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    289C  ALA      3.6     9.6    +      -       -      +
    290C  GLN*     3.2    20.7    +      -       -      +
    291C  ASN      3.2     0.2    -      -       -      -
    292C  SER*     1.3    81.0    +      -       -      +
    294C  LEU*     1.3    75.7    +      -       +      +
    296C  SER*     3.3    13.8    +      -       -      -
    297C  THR*     3.2    28.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 294 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    290C  GLN*     3.4    27.8    -      -       -      +
    291C  ASN*     3.6     7.4    -      -       -      +
    292C  SER      3.2     0.4    -      -       -      -
    293C  GLU*     1.3    97.7    -      -       +      +
    295C  ALA*     1.3    59.3    +      -       -      +
    296C  SER      3.2     0.4    -      -       -      -
    297C  THR*     2.8    26.5    +      -       +      +
    298C  ALA*     2.8    17.3    +      -       -      +
    373D  ASN*     4.3     8.7    -      -       -      +
    376D  LEU*     3.6    27.0    -      -       +      +
    377D  GLN*     3.8    42.2    -      -       +      +
    380D  VAL*     4.4     6.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 295 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    291C  ASN*     3.0    11.6    +      -       -      +
    292C  SER*     3.2    11.8    +      -       -      +
    294C  LEU*     1.3    76.5    -      -       -      +
    296C  SER*     1.3    57.4    +      -       -      +
    298C  ALA*     3.3     6.5    -      -       -      +
    299C  ASN*     3.0    29.1    +      -       -      +
    376D  LEU*     3.2    19.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 296 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    292C  SER      2.8    16.8    +      -       -      -
    293C  GLU*     3.3    10.3    +      -       -      -
    294C  LEU      3.2     0.2    -      -       -      -
    295C  ALA*     1.3    74.3    -      -       -      +
    297C  THR*     1.3    56.0    +      -       -      +
    299C  ASN*     3.2     8.5    +      -       -      +
    300C  MET*     2.8    34.4    +      -       -      +
    303C  GLU*     5.3     0.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 297 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    293C  GLU*     3.2    21.7    +      -       +      +
    294C  LEU*     2.8    29.4    +      -       +      +
    296C  SER*     1.3    74.8    -      -       -      +
    298C  ALA*     1.3    63.5    +      -       -      +
    300C  MET*     3.8    22.6    -      -       +      +
    301C  LEU*     3.1    34.6    +      -       -      +
    380D  VAL*     3.9    14.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 298 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    294C  LEU      2.8    15.1    +      -       -      +
    295C  ALA*     3.3    13.9    -      -       -      +
    297C  THR*     1.3    78.4    +      -       -      +
    299C  ASN*     1.3    58.8    +      -       -      +
    301C  LEU*     3.7     3.3    +      -       -      -
    302C  ARG*     3.1    29.4    +      -       -      +
    376D  LEU*     5.1    11.2    -      -       +      -
    379D  GLU*     5.5     8.7    -      -       +      -
    380D  VAL*     4.6    13.9    -      -       +      +
    383D  LEU*     3.9     9.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 299 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    295C  ALA      3.0    15.4    +      -       -      +
    296C  SER*     3.2    11.2    +      -       -      +
    298C  ALA*     1.3    78.1    -      -       -      +
    300C  MET*     1.3    55.1    +      -       -      +
    302C  ARG*     3.1    19.5    +      -       -      +
    303C  GLU*     2.8    46.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 300 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    296C  SER      2.8    18.9    +      -       -      +
    297C  THR*     3.3    20.6    +      -       +      +
    299C  ASN*     1.3    72.8    -      -       -      +
    301C  LEU*     1.3    88.7    +      -       +      +
    303C  GLU*     3.4    23.4    +      -       -      +
    304C  GLN*     3.2    30.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 301 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    297C  THR*     3.1    17.8    +      -       -      +
    298C  ALA*     4.1     0.7    -      -       -      +
    300C  MET*     1.3   103.8    -      -       +      +
    302C  ARG*     1.3    61.7    +      -       -      +
    304C  GLN*     3.2    31.4    +      -       -      +
    305C  VAL*     3.3     6.9    +      -       -      +
    380D  VAL*     3.8    21.8    -      -       +      +
    383D  LEU*     3.9    22.2    -      -       +      -
    384D  ARG*     3.2    40.6    -      -       +      +
    387D  VAL*     3.9    15.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 302 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    298C  ALA      3.1    20.1    +      -       -      +
    299C  ASN*     3.1    21.5    +      -       -      +
    301C  LEU*     1.3    75.1    -      -       -      +
    303C  GLU*     1.3    64.4    +      -       -      +
    305C  VAL*     3.3    21.1    +      -       +      +
    306C  ALA*     3.5     6.1    +      -       -      +
    383D  LEU*     3.6    15.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 303 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    296C  SER      5.3     0.3    -      -       -      +
    299C  ASN*     2.8    32.3    +      -       +      +
    300C  MET*     3.4    27.0    +      -       -      +
    302C  ARG*     1.3    72.4    -      -       -      +
    304C  GLN*     1.3    59.3    +      -       +      +
    306C  ALA*     3.2    10.7    +      -       -      +
    307C  GLN*     2.9    25.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 304 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    300C  MET*     3.2    35.0    +      -       -      +
    301C  LEU*     3.2    21.4    +      -       -      +
    303C  GLU*     1.3    76.2    -      -       +      +
    305C  VAL*     1.3    56.1    +      -       -      +
    307C  GLN*     3.7    24.0    -      -       -      +
    308C  LEU*     2.5    44.9    +      -       +      +
    387D  VAL*     4.1    23.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 305 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    301C  LEU      3.3    10.0    +      -       -      +
    302C  ARG*     3.3    18.2    +      -       +      +
    304C  GLN*     1.3    76.5    -      -       -      +
    306C  ALA*     1.3    65.2    +      -       +      +
    308C  LEU*     4.5     4.1    -      -       -      +
    309C  LYS*     3.3    23.5    +      -       +      +
    383D  LEU*     4.7    10.8    -      -       +      -
    386D  GLU*     3.7    35.7    -      -       +      +
    387D  VAL*     4.7     6.9    -      -       +      +
    390D  LEU*     6.0     3.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 306 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    302C  ARG      3.5     6.0    +      -       -      +
    303C  GLU*     3.2    10.2    +      -       -      +
    304C  GLN      3.1     0.6    -      -       -      -
    305C  VAL*     1.3    85.4    -      -       +      +
    307C  GLN*     1.3    60.1    +      -       -      +
    309C  LYS*     3.5     5.9    +      -       -      +
    310C  GLN*     3.3    26.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 307 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    303C  GLU      2.9    14.5    +      -       -      +
    304C  GLN*     2.8    32.3    +      -       -      +
    306C  ALA*     1.3    75.2    -      -       -      +
    308C  LEU*     1.3    73.6    +      -       +      +
    310C  GLN*     3.4     7.2    +      -       -      +
    311C  LYS*     3.2    30.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 308 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    304C  GLN*     2.5    29.7    +      -       +      +
    305C  VAL*     4.5     3.8    -      -       -      +
    307C  GLN*     1.3    84.8    -      -       +      +
    309C  LYS*     1.3    56.2    +      -       -      +
    311C  LYS*     3.7    11.6    -      -       +      +
    312C  VAL*     2.6    41.0    +      -       +      +
    387D  VAL*     4.1    17.0    -      -       +      +
    390D  LEU*     3.7    18.8    -      -       +      -
    391D  LYS*     3.3    39.0    -      -       +      -
    395D  LEU*     4.7    10.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 309 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    305C  VAL*     3.3    19.8    +      -       +      +
    306C  ALA*     3.5     7.4    -      -       -      +
    307C  GLN      3.3     0.6    -      -       -      -
    308C  LEU*     1.3    78.3    -      -       -      +
    310C  GLN*     1.3    62.8    +      -       +      +
    312C  VAL*     3.8    11.8    -      -       +      +
    313C  MET*     2.9    37.8    +      -       +      +
    390D  LEU*     4.9    10.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 310 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    306C  ALA      3.3    15.7    +      -       -      +
    307C  GLN*     3.4     8.3    +      -       -      +
    308C  LEU      3.2     0.4    -      -       -      -
    309C  LYS*     1.3    84.3    -      -       -      +
    311C  LYS*     1.3    62.3    +      -       +      +
    313C  MET*     4.1     4.1    -      -       -      +
    314C  ASN*     3.6    19.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 311 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    307C  GLN*     3.2    22.8    +      -       +      +
    308C  LEU*     3.2    15.3    +      -       +      +
    310C  GLN*     1.3    80.8    -      -       +      +
    312C  VAL*     1.3    61.3    +      -       -      +
    314C  ASN*     3.7    17.7    +      -       -      +
    395D  LEU*     3.7    29.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 312 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    308C  LEU      2.6    25.9    +      -       -      +
    309C  LYS*     3.8    17.0    -      -       +      +
    311C  LYS*     1.3    68.6    -      -       -      +
    313C  MET*     1.3    69.6    +      -       +      +
    314C  ASN*     3.1    10.7    +      -       -      +
    390D  LEU*     4.2    19.3    -      -       +      -
    394D  LEU*     3.1    56.5    -      -       +      +
    395D  LEU*     3.8    15.6    -      -       +      +
----------------------------------------------------------
 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