Contacts of the helix formed by residues 247 - 261 (chain C) in PDB entry 1VLP


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 HIS 247 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    244C  ASP*     3.0    35.9    +      -       -      +
    246C  LEU*     1.3   107.3    -      -       +      +
    248C  ALA*     1.3    56.9    +      -       -      +
    249C  ASN      3.4     1.8    -      -       -      -
    250C  LYS*     3.3    11.7    +      -       +      +
    251C  ASN*     2.9    42.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 248 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235C  VAL*     3.6     5.3    -      -       +      +
    238C  VAL*     3.9     9.7    -      -       -      +
    239C  ALA*     3.6    29.4    -      -       +      +
    244C  ASP      3.4    17.0    +      -       -      +
    245C  TYR      3.2    11.3    +      -       -      +
    246C  LEU      3.5     0.2    -      -       -      -
    247C  HIS*     1.3    77.4    -      -       -      +
    249C  ASN*     1.3    58.4    +      -       -      +
    251C  ASN*     3.8     1.6    -      -       -      +
    252C  ALA*     2.9    33.6    +      -       -      +
    273C  PHE*     4.0    13.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 249 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235C  VAL*     3.6    22.6    -      -       -      +
    245C  TYR      4.7     1.6    +      -       -      -
    246C  LEU      5.2     0.8    +      -       -      -
    247C  HIS      3.4     0.6    -      -       -      -
    248C  ALA*     1.3    77.7    -      -       -      +
    250C  LYS*     1.3    63.2    +      -       -      +
    252C  ALA*     3.5     2.6    +      -       -      +
    253C  MSE      3.1    30.4    +      -       -      +
    269C  LEU      4.7     3.8    -      -       -      +
    270C  THR      5.1     1.6    +      -       -      +
    272C  THR*     5.2     2.8    -      -       -      +
    273C  PHE*     4.4    16.1    -      -       -      +
    274C  GLY      4.8     1.4    +      -       -      -
    277C  ASP*     2.9    28.8    +      -       -      +
    278C  PHE*     3.5    45.8    -      -       +      +
    281C  SER*     4.4     9.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 250 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    247C  HIS*     3.3    12.2    +      -       +      +
    248C  ALA      3.3     0.2    -      -       -      -
    249C  ASN*     1.3    76.2    -      -       -      +
    251C  ASN*     1.3    70.1    +      -       -      +
    253C  MSE      3.2    11.2    +      -       +      +
    254C  ASP*     3.0    36.3    +      -       -      +
    281C  SER*     4.2    22.4    +      -       -      +
    283C  ARG*     6.0     3.1    -      -       -      +
    286C  TYR*     3.1    46.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 251 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238C  VAL*     4.0    15.0    -      -       +      +
    244C  ASP*     3.9    11.9    +      -       -      +
    247C  HIS*     2.9    40.6    +      -       -      +
    248C  ALA*     3.9     4.1    -      -       -      +
    250C  LYS*     1.3    79.8    +      -       -      +
    252C  ALA*     1.3    56.3    +      -       -      +
    254C  ASP*     3.4    11.2    +      -       -      +
    255C  CYS*     2.9    37.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 252 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    234C  TRP*     3.0    33.3    +      -       +      +
    235C  VAL*     3.6    23.6    -      -       +      -
    238C  VAL*     4.1    11.8    -      -       +      +
    248C  ALA      2.9    18.7    +      -       -      +
    249C  ASN*     3.6     5.2    -      -       -      +
    251C  ASN*     1.3    77.8    -      -       -      +
    253C  MSE      1.3    58.1    +      -       +      +
    255C  CYS*     3.5     0.6    +      -       -      -
    256C  TRP*     3.0    24.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with MSE 253 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    249C  ASN      3.1    18.7    +      -       -      +
    250C  LYS*     3.2    10.3    +      -       -      +
    252C  ALA*     1.3    75.7    -      -       +      +
    254C  ASP*     1.3    65.6    +      -       -      +
    256C  TRP*     3.3     1.3    +      -       -      +
    257C  ILE*     2.9    32.3    +      -       -      +
    278C  PHE*     3.9    30.3    -      -       +      -
    281C  SER*     3.7    40.4    -      -       -      +
    282C  PHE*     4.2     2.2    -      -       -      +
    286C  TYR*     3.8    38.8    -      -       +      -
    290C  TYR*     3.5    33.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 254 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    250C  LYS*     3.0    36.5    +      -       -      +
    251C  ASN*     3.6    14.5    -      -       -      +
    253C  MSE      1.3    75.2    -      -       -      +
    255C  CYS*     1.3    59.9    +      -       -      +
    257C  ILE*     3.8     3.1    -      -       -      +
    258C  ASN*     2.9    43.9    +      -       -      +
    286C  TYR*     2.6    29.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 255 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26C  ASN*     3.9    19.5    +      -       -      +
     27C  PHE*     4.4    19.3    -      -       -      -
    234C  TRP*     3.7    22.2    -      -       +      -
    238C  VAL*     5.5     1.3    -      -       -      -
    251C  ASN*     2.9    25.2    +      -       -      +
    252C  ALA*     5.3     0.4    -      -       -      -
    254C  ASP*     1.3    79.9    -      -       -      +
    256C  TRP*     1.3    55.8    +      -       -      +
    258C  ASN*     3.4    10.4    +      -       -      +
    259C  THR*     2.8    33.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with TRP 256 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18C  THR*     3.8    29.8    -      -       +      -
     19C  MSE      4.1    14.8    -      -       +      -
     22C  ALA*     3.7    23.8    -      -       +      -
    229C  THR      4.9     0.7    -      -       -      -
    230C  VAL*     3.8    43.6    -      -       +      +
    234C  TRP*     3.7    26.1    -      +       +      +
    252C  ALA      3.0    17.7    +      -       -      +
    253C  MSE      3.7     3.8    -      -       -      +
    255C  CYS*     1.3    75.1    -      -       -      +
    257C  ILE*     1.3    64.5    +      -       -      +
    259C  THR*     3.2     4.1    +      -       -      -
    260C  PHE*     3.1    53.1    +      +       +      +
    264C  ASN      4.3     2.8    +      -       -      -
    265C  ALA*     3.4    36.8    +      -       +      +
    290C  TYR*     4.0    17.0    -      +       -      +
----------------------------------------------------------
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Residues in contact with ILE 257 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    253C  MSE      2.9    20.7    +      -       -      +
    254C  ASP*     4.0     3.1    -      -       -      +
    256C  TRP*     1.3    79.6    -      -       +      +
    258C  ASN*     1.4    61.7    +      -       -      +
    261C  GLY*     2.8    33.3    +      -       -      +
    262C  ALA*     3.8    25.8    -      -       +      +
    265C  ALA*     4.2    19.1    -      -       +      -
    285C  PRO*     5.9     2.2    -      -       +      -
    286C  TYR*     3.9    27.6    -      -       +      -
    289C  ALA*     4.3    15.5    -      -       +      -
    290C  TYR*     4.1    17.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 258 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26C  ASN*     5.4     4.2    +      -       -      +
    254C  ASP*     2.9    35.3    +      -       -      +
    255C  CYS*     3.6    10.5    -      -       -      +
    257C  ILE*     1.4    79.8    -      -       -      +
    259C  THR*     1.3    62.3    +      -       -      +
    261C  GLY      4.7     0.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 259 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21C  ALA      4.3     0.2    -      -       -      +
     22C  ALA*     4.1     8.6    -      -       -      -
     25C  THR*     3.9    19.5    -      -       -      +
     26C  ASN*     2.8    21.8    +      -       -      -
     79C  TYR      4.2     2.9    -      -       -      +
     81C  PRO*     3.9    28.4    -      -       +      +
    255C  CYS      2.8    21.4    +      -       -      -
    256C  TRP*     3.6     5.6    -      -       -      -
    257C  ILE      3.1     0.2    -      -       -      -
    258C  ASN*     1.3    81.3    -      -       -      +
    260C  PHE*     1.3    90.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 260 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18C  THR*     3.3    29.6    -      -       -      -
     21C  ALA*     4.0     8.1    -      -       +      -
     22C  ALA*     4.1     3.1    -      -       +      -
     79C  TYR*     3.5    45.9    -      +       +      +
     80C  LEU*     4.2    10.5    -      -       +      -
     81C  PRO*     4.0    12.6    -      -       +      -
    256C  TRP*     3.1    66.2    +      +       +      +
    259C  THR*     1.3    98.9    -      -       +      +
    261C  GLY*     1.3    62.0    +      -       -      +
    264C  ASN*     2.8    36.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 261 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    257C  ILE*     2.8    24.0    +      -       -      +
    258C  ASN      4.6     0.8    +      -       -      -
    259C  THR      3.7     0.8    -      -       -      -
    260C  PHE*     1.3    75.9    -      -       -      +
    262C  ALA*     1.4    68.5    +      -       -      -
    263C  LYS      3.3     2.9    -      -       -      -
    264C  ASN*     2.9    18.7    +      -       -      -
    265C  ALA*     3.6     5.2    +      -       -      -
----------------------------------------------------------
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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