Contacts of the helix formed by residues 312 - 327 (chain B) in PDB entry 5XFR


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 PRO 312 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    310B  ASP      3.1     9.8    -      -       -      +
    311B  THR*     1.3    87.6    -      -       +      +
    313B  LYS*     1.3    61.4    +      -       -      +
    314B  SER*     4.3     6.3    -      -       -      +
    315B  GLU*     2.8    59.8    +      -       +      +
    316B  ARG*     3.3     8.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 313 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    293B  MET*     5.4     0.7    -      -       -      +
    297B  ASN*     3.8    41.0    +      -       -      +
    311B  THR      3.5     1.6    +      -       -      -
    312B  PRO*     1.3    71.4    -      -       -      +
    314B  SER*     1.3    61.9    +      -       -      +
    315B  GLU      3.5     0.3    +      -       -      -
    316B  ARG*     3.5    35.0    +      -       -      +
    317B  TYR*     4.5     3.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 314 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    312B  PRO*     3.0     5.3    +      -       -      +
    313B  LYS*     1.3    80.4    -      -       -      +
    315B  GLU*     1.3    64.7    -      -       -      +
    316B  ARG      3.5     0.2    -      -       -      -
    317B  TYR*     4.5     7.1    +      -       -      +
    318B  GLU*     4.5     7.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 315 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    311B  THR*     4.1    10.0    -      -       +      +
    312B  PRO*     2.8    43.0    +      -       +      +
    314B  SER*     1.3    82.1    -      -       -      +
    316B  ARG*     1.3    64.0    +      -       -      +
    317B  TYR      3.3     1.8    -      -       -      -
    318B  GLU*     3.5    27.0    +      -       -      +
    319B  HIS*     3.1    27.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 316 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    266B  TRP*     4.1    19.4    -      -       +      -
    293B  MET*     3.6    14.1    -      -       +      -
    297B  ASN*     3.0    32.5    +      -       -      +
    300B  TRP*     3.3    59.9    -      -       -      +
    309B  ALA      4.3     2.6    +      -       -      -
    311B  THR*     2.9    30.8    +      -       +      -
    312B  PRO*     3.3     9.4    -      -       -      +
    313B  LYS*     3.5    28.2    +      -       -      +
    314B  SER      3.5     0.8    -      -       -      -
    315B  GLU*     1.3    78.4    -      -       -      +
    317B  TYR*     1.3    63.1    +      -       -      +
    318B  GLU      3.3     0.3    +      -       -      -
    319B  HIS*     3.3     4.5    +      -       -      +
    320B  VAL*     3.2    27.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 317 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    288B  SER*     2.8    45.3    +      -       -      -
    289B  GLU*     3.4    35.0    +      -       +      +
    293B  MET*     3.7    34.6    -      -       +      -
    313B  LYS      4.5     4.4    +      -       -      +
    314B  SER      5.0     6.1    -      -       -      +
    315B  GLU      3.3     0.8    -      -       -      -
    316B  ARG*     1.3    78.2    -      -       -      +
    318B  GLU*     1.3    59.6    +      -       +      +
    320B  VAL*     4.4     4.5    -      -       +      -
    321B  LEU*     2.9    58.5    +      -       +      +
    342B  HIS*     4.9     7.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 318 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    314B  SER      4.5     5.2    +      -       -      +
    315B  GLU*     3.5    32.3    +      -       -      +
    317B  TYR*     1.3    79.5    -      -       +      +
    319B  HIS*     1.3    65.4    +      -       +      +
    321B  LEU*     3.9     5.0    -      -       -      +
    322B  GLU*     3.0    28.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 319 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    266B  TRP*     3.4    58.9    +      +       +      +
    311B  THR*     4.4     4.8    -      -       +      +
    315B  GLU*     3.1    36.8    +      -       -      +
    316B  ARG      3.3     3.2    +      -       -      +
    318B  GLU*     1.3    78.4    +      -       +      +
    320B  VAL*     1.3    65.8    +      -       -      +
    322B  GLU*     3.4    17.7    +      -       -      +
    323B  ALA*     3.1    22.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 320 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    266B  TRP*     4.0    25.8    -      -       +      +
    269B  ILE*     5.1     2.0    -      -       +      -
    270B  ALA*     4.3     8.9    -      -       +      +
    288B  SER      5.4     0.7    -      -       -      +
    292B  LEU*     4.1    26.0    -      -       +      -
    293B  MET*     3.9    21.1    -      -       +      -
    296B  ILE*     3.9    19.5    -      -       +      -
    316B  ARG      3.2    17.7    +      -       -      +
    317B  TYR*     3.8     8.1    -      -       +      +
    319B  HIS*     1.3    77.2    -      -       -      +
    321B  LEU*     1.3    61.9    +      -       -      +
    323B  ALA*     3.2     8.4    +      -       -      +
    324B  LEU*     3.0    26.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 321 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    288B  SER*     4.2    13.7    -      -       -      +
    317B  TYR*     2.9    44.1    +      -       +      +
    318B  GLU*     3.9     4.7    -      -       -      +
    320B  VAL*     1.3    77.6    -      -       -      +
    322B  GLU*     1.3    61.9    +      -       -      +
    324B  LEU*     3.3     8.9    +      -       +      +
    325B  ASN*     3.1    43.9    +      -       -      +
    342B  HIS*     5.4    11.2    -      -       +      -
    344B  PHE*     4.0    23.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 322 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114A  GLU*     4.9     8.5    -      -       -      +
    318B  GLU      3.0    19.0    +      -       -      +
    319B  HIS*     3.6    19.2    +      -       -      +
    321B  LEU*     1.3    78.5    -      -       -      +
    323B  ALA*     1.3    56.6    +      -       -      +
    325B  ASN*     3.4     4.5    +      -       -      +
    326B  ASP*     2.9    52.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 323 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    266B  TRP*     4.2     6.3    -      -       +      +
    267B  VAL*     3.8    36.8    -      -       +      +
    270B  ALA*     4.7     4.7    -      -       +      -
    319B  HIS      3.1    13.2    +      -       -      +
    320B  VAL      3.2     8.5    +      -       -      +
    322B  GLU*     1.3    76.0    -      -       -      +
    324B  LEU*     1.3    64.4    +      -       -      +
    326B  ASP*     4.6     0.9    -      -       -      -
    327B  TYR*     3.2    39.2    +      -       +      +
    331B  PHE*     3.6     3.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 324 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    270B  ALA*     4.1    11.2    -      -       +      -
    274B  LEU*     4.1    13.0    -      -       +      -
    288B  SER*     3.9    11.9    -      -       -      -
    292B  LEU*     3.8    21.1    -      -       +      -
    320B  VAL*     3.0    25.5    +      -       +      +
    321B  LEU*     3.6    12.3    -      -       -      +
    322B  GLU      3.3     0.2    -      -       -      -
    323B  ALA*     1.3    78.2    -      -       -      +
    325B  ASN*     1.3    60.3    +      -       -      +
    327B  TYR      4.1     4.3    -      -       -      +
    328B  LYS*     5.2     1.4    -      -       -      +
    331B  PHE*     3.7    53.6    -      -       +      +
    344B  PHE*     3.7    45.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 325 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112A  TYR*     3.5     6.4    +      -       +      +
    321B  LEU*     3.1    36.9    +      -       -      +
    322B  GLU*     3.9     4.6    -      -       -      +
    324B  LEU*     1.3    76.2    -      -       -      +
    326B  ASP*     1.3    67.9    +      -       -      +
    327B  TYR      3.5     0.2    -      -       -      -
    328B  LYS*     3.3    38.6    -      -       -      +
    333B  SER*     5.9     1.2    -      -       -      -
    335B  LYS*     5.4     5.1    -      -       -      +
    344B  PHE*     3.7    21.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 326 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112A  TYR*     4.5    10.3    -      -       -      -
    116A  PRO*     5.9     2.9    -      -       -      +
    117A  ASN*     3.7    26.6    +      -       -      +
    132A  LEU*     3.6    36.5    -      -       +      +
    133A  CYS*     4.8     0.7    -      -       -      -
    322B  GLU*     2.9    42.6    +      -       -      +
    323B  ALA*     5.0     0.3    -      -       -      -
    325B  ASN*     1.3    81.5    -      -       -      +
    327B  TYR*     1.3    65.4    +      -       +      +
    328B  LYS*     3.0    12.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 327 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    132A  LEU*     3.9    38.4    -      -       +      +
    137A  HIS*     4.1    22.2    -      +       -      -
    267B  VAL*     3.6    42.0    -      -       +      +
    323B  ALA*     3.2    32.5    +      -       +      +
    324B  LEU      4.4     2.9    -      -       -      -
    325B  ASN      3.5     0.2    -      -       -      -
    326B  ASP*     1.3    77.7    -      -       +      +
    328B  LYS*     1.3    63.2    +      -       -      +
    329B  THR*     3.2     3.8    -      -       -      +
    330B  MET*     3.2    15.4    +      -       +      -
    331B  PHE*     3.1    35.6    +      -       +      +
----------------------------------------------------------
 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