Contacts of the helix formed by residues 351 - 363 (chain K) in PDB entry 5ANC


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 ILE 351 (chain K).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38K  CYS*     3.9    29.4    -      -       -      +
     39K  LEU*     5.0    10.8    -      -       +      -
     42K  SER*     4.3     9.2    +      -       -      +
    242K  GLY*     3.2    35.9    -      -       -      +
    243K  PHE*     5.3     0.4    -      -       -      -
    246K  GLU*     5.5     5.6    -      -       -      +
    348K  TRP      5.4     0.7    -      -       -      +
    349K  LEU*     2.6    18.0    +      -       +      +
    350K  PRO*     1.3    67.0    -      -       -      +
    352K  SER*     1.3    57.3    +      -       -      +
    353K  HIS*     3.1     9.6    -      -       +      -
    354K  ALA*     2.9    11.2    +      -       +      -
    355K  VAL*     2.7    62.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 352 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1K  MET*     5.2    11.2    -      -       -      +
     42K  SER*     2.7    24.2    +      -       -      -
     79K  TYR*     3.5    20.3    -      -       -      -
     81K  THR*     4.0    15.2    +      -       -      +
    350K  PRO*     3.2     3.7    -      -       -      -
    351K  ILE*     1.3    78.9    -      -       -      +
    353K  HIS*     1.3    61.6    +      -       -      +
    355K  VAL*     4.3     2.9    -      -       -      -
    356K  LEU*     3.1    49.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 353 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81K  THR*     5.3     2.7    -      -       -      +
    250K  ARG*     3.4    38.7    +      -       -      -
    347K  GLN      6.0     0.7    -      -       -      -
    348K  TRP      4.5    10.8    -      -       -      -
    350K  PRO*     2.7    31.3    +      -       -      +
    351K  ILE*     3.1     2.4    +      -       -      -
    352K  SER*     1.3    78.3    -      -       -      +
    354K  ALA*     1.3    81.1    +      -       +      +
    357K  ALA*     4.7     9.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 354 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246K  GLU*     4.3    22.2    -      -       +      +
    250K  ARG*     4.5    10.1    -      -       -      +
    351K  ILE*     2.9     9.7    +      -       +      +
    353K  HIS*     1.3   100.0    -      -       +      +
    355K  VAL*     1.3    63.3    +      -       +      +
    356K  LEU      3.4     2.1    +      -       -      -
    357K  ALA*     3.5    12.3    +      -       -      +
    358K  MET*     3.5    22.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 355 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    231K  ASN*     3.7    22.4    -      -       -      +
    233K  VAL*     5.9     4.3    -      -       +      -
    246K  GLU*     5.4    10.1    -      -       -      +
    351K  ILE*     2.7    55.5    +      -       +      +
    352K  SER*     4.3     4.5    -      -       -      +
    354K  ALA*     1.3    72.8    -      -       +      +
    356K  LEU*     1.3    69.3    +      -       +      +
    358K  MET*     3.2     8.0    +      -       +      +
    359K  VAL*     2.9    35.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 356 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79K  TYR*     5.1     4.3    -      -       +      -
     81K  THR*     3.5    37.2    -      -       +      +
     86K  TYR*     3.7    57.1    +      -       +      +
     88K  ILE*     5.1    10.8    -      -       +      -
    352K  SER*     3.1    37.8    +      -       -      +
    353K  HIS      5.5     0.2    -      -       -      +
    354K  ALA      3.4     0.8    -      -       -      -
    355K  VAL*     1.3    87.3    -      -       +      +
    357K  ALA*     1.3    57.8    +      -       -      +
    359K  VAL*     3.2    11.1    +      -       +      +
    360K  CYS*     2.9    28.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 357 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    353K  HIS      4.7     7.7    +      -       -      +
    354K  ALA      3.5    12.4    +      -       -      +
    355K  VAL      3.2     0.6    -      -       -      -
    356K  LEU*     1.3    77.3    -      -       -      +
    358K  MET*     1.3    62.8    +      -       +      +
    360K  CYS*     3.2     9.3    +      -       -      +
    361K  GLN*     2.9    39.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 358 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228K  GLU      4.8     0.7    -      -       -      +
    229K  GLN      3.7    15.1    -      -       -      +
    230K  GLY*     3.2    33.0    -      -       -      +
    231K  ASN*     4.2    11.4    -      -       +      +
    246K  GLU*     4.1    20.4    -      -       +      -
    260K  LYS*     5.6     9.0    -      -       +      -
    264K  MET*     4.0    22.0    -      -       +      -
    354K  ALA*     3.5    17.5    -      -       +      +
    355K  VAL*     3.2    13.1    +      -       +      +
    357K  ALA*     1.3    81.6    -      -       +      +
    359K  VAL*     1.3    56.3    +      -       -      +
    361K  GLN*     3.2    23.1    +      -       -      +
    362K  LYS*     2.9    29.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 359 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20K  ARG*     4.1    18.4    -      -       +      +
     22K  ILE*     3.4    41.1    -      -       +      -
     86K  TYR*     5.0     6.7    -      -       +      -
     88K  ILE*     6.6     0.4    -      -       +      -
    231K  ASN*     3.9    19.3    -      -       -      +
    355K  VAL*     2.9    28.4    +      -       +      +
    356K  LEU*     3.2    14.1    +      -       +      +
    358K  MET*     1.3    77.0    -      -       -      +
    360K  CYS*     1.3    57.6    +      -       -      +
    362K  LYS*     3.2     9.9    +      -       -      +
    363K  LEU*     2.9    30.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with CYS 360 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20K  ARG*     3.3    42.6    -      -       -      +
     84K  GLU*     5.1     1.8    -      -       -      -
     86K  TYR*     4.8     0.4    -      -       -      +
    356K  LEU      2.9    11.2    +      -       -      +
    357K  ALA*     3.3    12.3    -      -       -      +
    359K  VAL*     1.3    77.1    -      -       -      +
    361K  GLN*     1.3    63.7    +      -       +      +
    363K  LEU      3.0    24.3    -      -       -      +
    364K  PRO*     3.7     5.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 361 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    229K  GLN*     3.0    46.3    +      -       +      +
    261K  GLU*     4.2    17.0    +      -       -      +
    357K  ALA*     2.9    20.2    +      -       +      +
    358K  MET*     3.2    33.5    +      -       -      +
    360K  CYS*     1.3    78.7    -      -       +      +
    362K  LYS*     1.3    63.2    -      -       -      +
    363K  LEU      4.9     0.5    -      -       -      -
    364K  PRO*     4.9     2.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 362 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22K  ILE*     4.6    10.8    -      -       -      +
    112K  GLY*     4.5    14.1    +      -       -      -
    114K  ILE*     5.1     2.0    -      -       -      +
    139K  ILE      5.4     0.6    +      -       -      -
    140K  ARG*     2.5    79.4    +      -       +      +
    141K  PRO*     5.0     0.4    -      -       -      +
    142K  VAL*     4.1    14.4    -      -       +      +
    228K  GLU*     4.0    28.5    -      -       +      +
    229K  GLN*     4.1     7.0    -      -       -      +
    231K  ASN*     4.1    23.5    -      -       -      +
    358K  MET      2.9    13.3    +      -       -      +
    359K  VAL*     3.2    10.5    +      -       -      +
    361K  GLN*     1.3    79.6    -      -       -      +
    363K  LEU*     1.3    73.8    +      -       -      +
    364K  PRO*     3.7     7.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 363 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20K  ARG*     3.2    40.2    -      -       +      +
     21K  ASN*     3.9    22.4    -      -       +      +
     22K  ILE*     4.5     8.3    -      -       +      -
    112K  GLY*     5.2     2.9    -      -       -      -
    139K  ILE      5.0     0.4    -      -       -      +
    140K  ARG*     4.6    11.9    -      -       +      -
    359K  VAL      2.9    12.0    +      -       -      +
    360K  CYS      3.0    11.9    -      -       -      +
    362K  LYS*     1.3    89.0    -      -       -      +
    364K  PRO*     1.4    69.5    -      -       +      +
    365K  SER      3.9    17.9    -      -       -      +
    366K  PRO*     5.0     1.3    -      -       +      -
    369K  ILE*     3.6    44.0    -      -       +      -
----------------------------------------------------------
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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