Contacts of the helix formed by residues 112 - 127 (chain 6) in PDB entry 1O1F


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 112 (chain 6).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     756  ILE*     3.9    16.4    -      -       +      -
    1106  LEU      3.3     9.6    -      -       -      +
    1116  ASN*     1.3    93.9    -      -       -      +
    1136  LYS*     1.3    56.7    +      -       -      +
    1146  ALA*     3.0     7.0    -      -       +      +
    1156  ASN*     2.8    47.0    +      -       -      +
    1166  ARG*     3.5     3.3    +      -       -      +
    1957  GLU*     5.3    19.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 113 (chain 6). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1116  ASN      3.4     4.7    +      -       -      -
    1126  PRO*     1.3    68.8    -      -       -      +
    1146  ALA*     1.3    57.5    +      -       -      +
    1166  ARG*     3.4     4.0    +      -       -      +
    1176  GLU*     3.1    35.1    +      -       -      +
    3716  HIS*     3.2    45.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 114 (chain 6). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1126  PRO*     2.9     5.1    +      -       +      +
    1136  LYS*     1.3    79.3    -      -       -      +
    1156  ASN*     1.3    62.1    +      -       -      +
    1176  GLU*     3.7    13.7    -      -       -      +
    1186  LYS*     3.0    24.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 115 (chain 6). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     756  ILE*     3.5    24.0    -      -       -      +
     766  ILE*     3.8    16.9    +      -       +      +
     796  TRP*     3.6    26.3    +      -       +      -
    1116  ASN*     3.3    25.3    +      -       -      +
    1126  PRO*     2.8    26.5    +      -       -      +
    1146  ALA*     1.3    73.7    -      -       -      +
    1166  ARG*     1.4    58.1    +      -       -      +
    1186  LYS*     2.8     3.2    +      -       -      +
    1196  MET*     2.8    37.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 116 (chain 6). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1076  GLU*     3.1    40.5    +      -       -      +
    1116  ASN*     4.1     2.0    -      -       -      +
    1126  PRO      3.5     3.4    +      -       -      +
    1136  LYS*     3.4    11.1    +      -       -      +
    1156  ASN*     1.4    77.9    -      -       -      +
    1176  GLU*     1.3    56.3    +      -       -      +
    1196  MET*     3.4    11.4    -      -       -      +
    1206  THR*     2.6    32.4    +      -       -      +
    1346  VAL*     3.2    40.1    +      -       +      +
    1366  ILE*     4.0    20.2    -      -       -      +
    3706  VAL*     3.5    20.8    +      -       +      +
    3716  HIS*     3.7    36.6    +      -       -      +
    3726  ARG*     3.6    32.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 117 (chain 6). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1136  LYS*     3.1    21.2    +      -       -      +
    1146  ALA*     3.7    13.0    -      -       -      +
    1166  ARG*     1.3    76.8    -      -       -      +
    1186  LYS*     1.3    56.1    +      -       -      +
    1206  THR*     3.4     5.0    +      -       -      -
    1216  GLN*     3.0    27.2    +      -       -      +
    3676  PRO*     3.6    27.2    -      -       +      +
    3686  SER*     3.9    18.9    +      -       -      -
    3706  VAL*     5.2     0.2    -      -       -      -
    3716  HIS*     3.7    34.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 118 (chain 6). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     796  TRP*     3.8    44.7    -      -       +      +
    1146  ALA      3.0    16.2    +      -       -      +
    1156  ASN*     2.8    14.9    +      -       -      +
    1176  GLU*     1.3    71.1    -      -       -      +
    1196  MET*     1.3    56.4    +      -       -      +
    1216  GLN*     3.1    36.6    +      -       +      +
    1226  ILE*     3.0    38.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 119 (chain 6). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     126  ASN*     4.8     2.5    -      -       -      +
     766  ILE*     4.5    14.6    -      -       +      -
     796  TRP*     3.8     9.9    -      -       +      -
     866  TRP*     3.9    26.2    -      -       +      -
    1056  LEU*     3.7    28.9    -      -       +      -
    1066  THR      4.1    20.0    -      -       -      +
    1076  GLU*     5.0     0.7    -      -       -      -
    1116  ASN*     4.5    11.4    -      -       -      -
    1156  ASN      2.8    20.7    +      -       -      +
    1166  ARG*     3.4    20.2    -      -       -      +
    1186  LYS*     1.3    72.1    -      -       -      +
    1206  THR*     1.3    62.3    +      -       -      +
    1226  ILE*     3.8     7.8    -      -       -      +
    1236  MET*     2.9    35.5    +      -       -      +
    1326  MET*     4.5     0.2    -      -       -      -
    1346  VAL*     4.3    15.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 120 (chain 6). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1166  ARG      2.6    22.9    +      -       -      -
    1176  GLU*     3.4     5.4    -      -       -      -
    1186  LYS      3.0     0.8    -      -       -      -
    1196  MET*     1.3    76.7    -      -       -      +
    1216  GLN*     1.3    67.1    +      -       -      +
    1246  PHE*     2.9    51.7    +      -       +      +
    1326  MET*     3.8    18.0    -      -       -      +
    1346  VAL*     4.5     1.7    -      -       -      +
    3626  TYR*     4.3    13.5    -      -       +      -
    3676  PRO*     4.6     2.0    -      -       +      +
    3706  VAL*     3.2    34.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 121 (chain 6). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1176  GLU      3.0    13.7    +      -       -      +
    1186  LYS*     3.1    45.4    +      -       +      +
    1206  THR*     1.3    74.9    -      -       -      +
    1226  ILE*     1.3    63.8    +      -       -      +
    1256  GLU*     2.8    65.6    +      -       -      +
    1266  THR*     4.9     6.9    -      -       -      +
    3626  TYR*     3.6    18.6    +      -       -      +
    3676  PRO*     4.7     6.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 122 (chain 6). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     796  TRP*     3.6    42.6    -      -       +      +
     836  GLU*     4.1    18.2    -      -       +      +
     866  TRP*     4.1    14.1    -      -       +      -
    1186  LYS*     3.0    30.4    +      -       -      +
    1196  MET*     4.1     5.2    -      -       -      +
    1216  GLN*     1.3    89.4    -      -       -      +
    1236  MET*     1.3    68.2    +      -       -      +
    1266  THR*     2.9    41.8    +      -       +      +
    1276  PHE*     3.2    19.8    +      -       +      -
----------------------------------------------------------
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Residues in contact with MET 123 (chain 6). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     866  TRP*     3.3    55.2    -      -       +      +
     906  PHE*     4.1    17.7    -      -       +      -
    1036  THR*     4.6     8.3    -      -       -      -
    1056  LEU*     3.7    15.9    -      -       +      -
    1196  MET      2.9    24.2    +      -       -      +
    1206  THR      3.2     1.3    +      -       -      +
    1226  ILE*     1.3    78.9    -      -       -      +
    1246  PHE*     1.3    58.4    +      -       -      +
    1276  PHE*     3.2    24.6    +      -       +      +
    1286  ASN      3.0    21.5    +      -       -      -
    1296  VAL*     3.6    20.8    +      -       +      -
    1326  MET*     3.6    28.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 124 (chain 6). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1206  THR*     2.9    26.3    +      -       +      +
    1236  MET*     1.3    78.4    -      -       -      +
    1256  GLU*     1.3    58.9    +      -       -      +
    1286  ASN*     3.3    23.2    -      -       -      +
    1296  VAL*     3.5    27.6    -      -       +      +
    1306  PRO      3.7    10.8    -      -       -      -
    1316  ALA*     3.8     5.2    -      -       -      -
    1326  MET*     3.4    26.7    -      -       +      -
    3576  ILE*     3.0    49.4    -      -       +      -
    3586  THR      4.0     2.7    -      -       -      -
    3596  LYS*     3.8    14.1    -      -       +      -
    3626  TYR*     3.6    39.3    -      +       +      -
----------------------------------------------------------
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Residues in contact with GLU 125 (chain 6). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1216  GLN*     2.8    49.7    +      -       -      +
    1246  PHE*     1.3    74.8    -      -       -      +
    1266  THR*     1.4    59.1    +      -       +      +
    1286  ASN*     4.7     1.9    -      -       -      +
    3626  TYR*     3.5    33.4    +      -       +      -
----------------------------------------------------------
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Residues in contact with THR 126 (chain 6). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     836  GLU*     4.2    25.8    +      -       -      +
    1216  GLN*     4.9     9.4    -      -       -      +
    1226  ILE*     2.9    38.4    +      -       +      +
    1256  GLU*     1.4    78.8    -      -       +      +
    1276  PHE*     1.3    72.8    +      -       -      +
    1286  ASN*     3.6     1.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 127 (chain 6). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     836  GLU*     3.7    21.3    -      -       +      -
     866  TRP*     3.6    31.4    -      +       +      -
     876  HIS*     4.0    20.4    -      -       +      -
     906  PHE*     3.6    30.1    -      +       +      -
     916  TYR*     4.9     6.7    -      +       -      -
     986  PRO*     3.7    19.5    -      -       +      +
     996  GLU*     3.5    13.4    +      -       -      +
    1226  ILE*     3.4    35.9    -      -       +      -
    1236  MET*     3.2    27.1    +      -       +      +
    1266  THR*     1.3    82.1    +      -       -      +
    1286  ASN*     1.3    74.2    +      -       -      +
    1296  VAL*     3.4     8.8    +      -       +      -
----------------------------------------------------------
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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