Contacts of the helix formed by residues 1612 - 1626 (chain X) in PDB entry 3HM6


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 SER1612 (chain X).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1608X  ASN      4.0     1.6    +      -       -      -
   1609X  LEU      2.9    13.5    +      -       -      +
   1610X  LEU      3.7     0.5    -      -       -      +
   1611X  ASN*     1.3    76.7    -      -       -      +
   1613X  LYS*     1.3    62.5    +      -       -      +
   1614X  LEU*     3.4     8.1    +      -       -      +
   1615X  PHE*     2.8    27.0    +      -       -      +
   1616X  LEU*     3.0    18.2    +      -       -      +
   1651X  TYR*     3.3     4.8    +      -       -      -
   2117X  LEU*     4.0     7.9    -      -       -      +
   2120X  ARG*     4.3    17.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS1613 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1611X  ASN      3.5     3.6    +      -       -      -
   1612X  SER*     1.3    71.4    -      -       -      +
   1614X  LEU*     1.3    61.4    +      -       -      +
   1617X  THR*     2.9    38.5    +      -       +      +
   1651X  TYR*     3.4    19.0    +      -       +      -
   1654X  ASP*     2.8    35.8    +      -       -      +
   1655X  ILE*     3.8    16.6    -      -       +      -
   1658X  THR*     2.7    40.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU1614 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1612X  SER*     3.2     6.6    +      -       -      +
   1613X  LYS*     1.3    76.2    -      -       -      +
   1615X  PHE*     1.3    66.5    +      -       -      +
   1617X  THR*     3.1     8.8    +      -       -      +
   1618X  LYS*     3.1    41.3    +      -       +      +
   2109X  ASP*     4.0    13.2    -      -       -      +
   2111X  THR*     3.7    22.9    -      -       +      +
   2112X  ALA*     3.5    28.7    -      -       +      +
   2115X  MET*     5.8     1.1    -      -       +      -
   2117X  LEU*     3.8    14.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE1615 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1606X  LEU*     4.6     7.0    -      -       +      -
   1609X  LEU*     3.7    51.4    -      -       +      +
   1610X  LEU*     3.9    24.5    -      -       +      -
   1612X  SER*     2.8    28.5    +      -       -      +
   1614X  LEU*     1.3    74.8    -      -       -      +
   1616X  LEU*     1.3    57.5    +      -       -      +
   1618X  LYS*     3.3     1.4    +      -       -      +
   1619X  PHE*     2.7    60.3    +      +       +      +
   2095X  ILE*     4.8     2.2    -      -       +      -
   2102X  ILE*     4.6     3.6    -      -       +      -
   2106X  LEU*     4.0    24.5    -      -       +      -
   2117X  LEU*     3.7    15.3    -      -       +      +
   2121X  LEU*     4.1    27.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU1616 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1610X  LEU*     3.7    23.1    -      -       +      +
   1612X  SER      3.0    17.3    +      -       -      +
   1613X  LYS*     4.0     2.7    -      -       -      +
   1615X  PHE*     1.3    83.4    -      -       +      +
   1617X  THR*     1.3    58.0    +      -       -      +
   1619X  PHE*     3.5     6.4    +      -       +      +
   1620X  ILE*     3.0    36.4    +      -       +      +
   1641X  LEU*     3.7    37.5    -      -       +      -
   1645X  LEU*     3.8    18.6    -      -       +      -
   1651X  TYR*     3.6    15.9    -      -       -      +
   1655X  ILE*     3.7    29.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR1617 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1613X  LYS*     2.9    35.9    +      -       +      +
   1614X  LEU*     3.1    13.0    +      -       -      +
   1616X  LEU*     1.3    73.0    -      -       -      +
   1618X  LYS*     1.3    62.5    +      -       -      +
   1620X  ILE*     3.9     6.9    -      -       -      +
   1621X  HIS*     3.0    31.3    +      -       -      +
   1655X  ILE*     4.3    13.7    -      -       +      -
   1658X  THR*     4.7    14.6    -      -       +      -
   1659X  LEU*     4.7    19.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS1618 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1614X  LEU*     3.1    35.4    +      -       +      +
   1615X  PHE      3.5     2.9    -      -       -      +
   1617X  THR*     1.3    74.0    +      -       -      +
   1619X  PHE*     1.3    58.9    +      -       -      +
   1621X  HIS*     3.9     7.6    +      -       +      +
   1622X  THR*     2.6    41.7    +      -       -      +
   2102X  ILE*     6.0     1.1    -      -       -      -
   2105X  ALA*     4.0    26.0    +      -       +      +
   2106X  LEU*     4.1    20.2    -      -       +      -
   2108X  GLU      5.3     1.8    +      -       -      -
   2109X  ASP*     3.2    37.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE1619 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1610X  LEU*     4.4     5.6    -      -       +      -
   1615X  PHE*     2.7    47.8    +      +       +      +
   1616X  LEU*     3.6    17.9    -      -       +      +
   1618X  LYS*     1.3    73.7    -      -       -      +
   1620X  ILE*     1.3    64.2    +      -       -      +
   1622X  THR*     3.8     3.4    -      -       -      -
   1623X  LEU*     3.1    54.4    +      -       +      +
   1637X  VAL*     4.9     2.0    -      -       +      -
   1641X  LEU*     4.6     7.9    -      -       +      -
   2091X  LEU*     4.1    32.5    -      -       +      -
   2094X  TYR*     4.8     1.3    -      -       +      -
   2095X  ILE*     3.7    26.2    -      -       +      -
   2102X  ILE*     3.6    38.1    -      -       +      +
   2106X  LEU*     5.7     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE1620 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1616X  LEU*     3.0    39.9    +      -       +      +
   1617X  THR*     3.9     6.5    -      -       -      +
   1619X  PHE*     1.3    76.7    -      -       +      +
   1621X  HIS*     1.3    65.5    +      -       -      +
   1623X  LEU*     3.5     7.2    +      -       -      +
   1624X  GLU*     3.1    42.0    +      -       -      +
   1637X  VAL*     5.9     1.3    -      -       +      -
   1641X  LEU*     4.1    24.0    -      -       +      -
   1655X  ILE*     4.5     8.1    -      -       +      -
   1659X  LEU*     4.0    33.2    -      -       +      -
   1682X  VAL*     3.9    23.5    -      -       +      +
   1683X  VAL      5.9     0.2    -      -       -      +
   1686X  LEU*     4.7     2.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS1621 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1617X  THR      3.0    19.2    +      -       -      +
   1618X  LYS*     3.9     8.0    -      -       +      +
   1620X  ILE*     1.3    78.7    -      -       -      +
   1622X  THR*     1.3    67.3    +      -       -      +
   1624X  GLU*     3.3     6.3    +      -       -      +
   1625X  THR*     3.0    44.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR1622 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1618X  LYS*     2.6    25.0    +      -       -      +
   1619X  PHE*     3.8     3.5    -      -       -      -
   1621X  HIS*     1.3    82.7    +      -       -      +
   1623X  LEU*     1.3    63.2    +      -       -      +
   1625X  THR*     3.3    10.6    +      -       +      -
   1626X  GLN*     3.1    34.6    +      -       +      +
   2098X  TYR*     5.9     0.7    -      -       +      -
   2101X  GLN*     3.5    33.7    -      -       +      +
   2102X  ILE*     3.9    17.6    -      -       +      +
   2105X  ALA*     3.4    21.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU1623 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1619X  PHE*     3.1    51.7    +      -       +      +
   1620X  ILE*     3.7     6.3    -      -       -      +
   1622X  THR*     1.3    80.3    -      -       -      +
   1624X  GLU*     1.3    56.0    +      -       -      +
   1626X  GLN*     3.0    15.9    +      -       -      +
   1629X  PHE*     3.0    56.2    -      -       +      +
   1637X  VAL*     4.1    16.6    -      -       +      -
   1682X  VAL*     6.2     0.7    -      -       +      -
   2094X  TYR*     4.1    12.6    -      -       +      +
   2098X  TYR*     3.4    39.5    -      -       +      -
   2102X  ILE*     4.6     2.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU1624 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1X  UNX      2.3    26.8    -      -       -      -
   1620X  ILE*     3.1    24.9    +      -       -      +
   1621X  HIS*     3.3     6.3    +      -       -      +
   1622X  THR      3.3     0.2    -      -       -      -
   1623X  LEU*     1.3    76.3    -      -       -      +
   1625X  THR*     1.3    61.4    +      -       -      +
   1626X  GLN      3.3     0.2    -      -       -      -
   1629X  PHE*     3.8     7.2    -      -       +      -
   1634X  ARG*     2.9    50.6    +      -       -      +
   1681X  THR*     3.5     9.1    -      -       -      +
   1682X  VAL*     3.2    39.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR1625 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1621X  HIS*     3.0    32.0    +      -       -      -
   1622X  THR*     3.4    12.3    -      -       -      -
   1623X  LEU      3.2     0.2    -      -       -      -
   1624X  GLU*     1.3    76.8    -      -       -      +
   1626X  GLN*     1.3    74.8    +      -       -      +
   1627X  ARG*     3.4    15.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN1626 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1622X  THR*     3.1    26.8    +      -       -      +
   1623X  LEU*     3.0    11.5    +      -       -      +
   1625X  THR*     1.3    90.5    -      -       -      +
   1627X  ARG*     1.3    60.5    +      -       -      +
   1628X  THR*     3.2     2.0    -      -       -      +
   1629X  PHE*     3.0    26.9    +      -       +      +
   1634X  ARG*     3.6     9.4    +      -       -      -
   2098X  TYR*     3.5    41.1    -      -       +      -
   2101X  GLN*     3.5    38.7    +      -       -      +
----------------------------------------------------------
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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