Contacts of the strand formed by residues 268 - 276 (chain K) in PDB entry 1F1H


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 MET 268 (chain K).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128K  PRO*     3.8    25.1    -      -       +      -
    129K  GLU      3.4     4.3    -      -       -      -
    130K  PRO*     3.8    24.2    -      -       +      -
    235K  ILE*     4.2    13.9    -      -       +      -
    239K  LYS*     6.4     0.2    -      -       -      -
    267K  GLY*     1.3    74.1    -      -       -      +
    269K  HIS*     1.3    67.7    +      -       -      +
    270K  CYS*     3.4     5.0    +      -       -      -
    321K  ARG*     4.4     0.2    -      -       -      +
    361K  PRO*     2.7    35.0    +      -       +      +
    362K  ASP      3.6    29.2    -      -       -      +
    363K  PRO*     3.7    11.2    -      -       +      +
    365K  ALA*     4.3    19.1    -      -       +      +
    367K  PRO*     5.2     4.3    -      -       +      -
    370K  CYS*     4.9     1.8    -      -       -      -
    371K  PHE*     4.3    20.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 269 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50J  ASP*     5.5     4.9    -      -       -      -
    127K  GLY      3.7     0.9    -      -       -      +
    128K  PRO*     3.1     4.3    -      -       -      +
    129K  GLU*     2.7    45.3    +      -       +      +
    131K  GLU*     5.7     7.7    +      -       -      -
    267K  GLY*     5.2     1.9    -      -       -      -
    268K  MET*     1.3    77.2    -      -       -      +
    270K  CYS*     1.3    59.7    +      -       -      +
    271K  HIS      4.0     0.4    -      -       -      -
    321K  ARG*     4.5     9.6    +      -       -      -
    329K  PRO*     5.6     1.0    -      -       -      +
    357K  GLU*     3.0    16.2    +      -       +      +
    358K  VAL      3.5     6.3    -      -       -      +
    359K  ARG*     3.4    62.1    +      -       +      +
    470K   MN      2.3    32.9    +      -       -      -
   1481K  ADP      4.8     2.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 270 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126K  PHE*     4.7    11.2    -      -       +      -
    127K  GLY      4.0     2.9    -      -       -      -
    128K  PRO*     4.4     7.4    -      -       +      -
    268K  MET*     3.4    18.8    -      -       -      -
    269K  HIS*     1.3    75.3    -      -       -      +
    271K  HIS*     1.3    60.7    +      -       -      +
    272K  MET*     3.7     8.3    +      -       +      +
    356K  ILE      3.6     1.2    -      -       -      +
    357K  GLU*     3.4     2.0    -      -       -      -
    358K  VAL*     2.8    39.9    +      -       +      +
    361K  PRO*     4.3    14.6    -      -       +      -
    370K  CYS*     5.0     0.7    -      -       -      -
    371K  PHE*     4.0    27.1    -      -       -      -
    374K  LEU*     4.5    18.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 271 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126K  PHE*     3.5     1.7    -      -       -      -
    127K  GLY      2.9    46.4    +      -       -      +
    129K  GLU*     3.1    22.4    +      -       -      -
    269K  HIS*     5.1     0.2    -      -       +      -
    270K  CYS*     1.3    73.3    -      -       -      +
    272K  MET*     1.3    64.5    +      -       -      +
    344K  ARG*     4.8     3.4    -      -       -      -
    346K  PRO*     4.1    10.3    -      -       +      +
    355K  ARG*     2.9    29.2    +      -       -      -
    356K  ILE      3.2     6.3    +      -       -      +
    357K  GLU*     3.0    42.1    +      -       +      +
   1481K  ADP      3.2    47.9    +      -       +      -
----------------------------------------------------------
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Residues in contact with MET 272 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124K  VAL*     6.0     0.9    -      -       +      -
    125K  LEU      3.2     7.4    -      -       -      +
    126K  PHE*     3.5    42.4    -      -       +      -
    270K  CYS*     3.9    10.8    -      -       +      +
    271K  HIS*     1.3    80.5    -      -       -      +
    273K  SER*     1.3    61.7    +      -       -      +
    282K  PHE*     4.0     2.8    -      -       -      -
    297K  TYR*     3.6    28.3    -      -       +      +
    301K  VAL*     5.2     0.4    -      -       +      -
    355K  ARG*     3.0    21.6    -      -       -      +
    356K  ILE*     2.8    34.6    +      -       +      +
    358K  VAL*     3.2    35.9    -      -       +      -
    374K  LEU*     3.9    17.3    -      -       +      -
   1481K  ADP      4.5     2.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 273 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124K  VAL*     3.9     3.1    -      -       -      +
    125K  LEU*     2.9    40.1    +      -       -      +
    272K  MET*     1.3    79.2    -      -       -      +
    274K  LEU*     1.3    65.8    +      -       -      +
    275K  ALA*     5.7     0.2    -      -       -      +
    280K  ASN*     3.9    12.3    +      -       -      -
    282K  PHE*     3.8    13.4    -      -       -      -
    297K  TYR*     6.1     0.2    -      -       -      -
    354K  ARG      3.7    16.8    -      -       -      -
    355K  ARG*     3.9     0.7    -      -       -      -
   1481K  ADP      2.9    29.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 274 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115K  LEU*     3.9    16.8    -      -       +      -
    120K  ILE*     4.8     4.3    -      -       +      -
    121K  ALA*     4.0    13.7    -      -       +      -
    123K  THR      3.7     9.2    -      -       -      +
    124K  VAL*     3.3    33.0    -      -       +      -
    125K  LEU*     5.8     0.4    -      -       -      -
    273K  SER*     1.3    76.1    +      -       -      +
    275K  ALA*     1.3    62.7    +      -       -      +
    280K  ASN*     3.4     8.0    -      -       -      +
    281K  LEU*     3.1    27.3    +      -       +      +
    282K  PHE*     3.5    30.4    -      -       +      -
    293K  GLN*     5.1     1.6    -      -       -      +
    297K  TYR*     3.8    22.0    -      -       +      -
    375K  LEU*     4.4     4.3    -      -       +      -
    379K  LEU*     4.3     9.4    -      -       +      -
    382K  ILE*     4.1    14.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 275 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121K  ALA*     3.2     4.7    -      -       -      +
    122K  ASP*     2.8    29.9    +      -       -      +
    123K  THR*     3.1    23.7    +      -       -      +
    125K  LEU*     5.0    13.0    -      -       +      -
    274K  LEU*     1.3    78.7    -      -       -      +
    276K  LYS*     1.3    61.1    +      -       -      +
    278K  GLY*     5.2     4.7    -      -       -      +
    279K  THR      3.2    19.3    -      -       -      +
    280K  ASN*     4.7     1.6    -      -       -      -
    281K  LEU*     4.0     2.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 276 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119K  GLY*     2.9    35.9    +      -       -      +
    120K  ILE      4.6     3.8    -      -       -      +
    121K  ALA*     4.3    12.0    -      -       -      +
    122K  ASP*     3.2    17.1    +      -       -      +
    275K  ALA*     1.3    74.5    -      -       -      +
    277K  ASN*     1.3    88.7    +      -       -      +
    278K  GLY      3.2     0.9    -      -       -      -
    279K  THR*     2.8    26.1    +      -       -      -
    281K  LEU*     3.5    18.1    -      -       +      +
----------------------------------------------------------
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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