Contacts of the strand formed by residues 99 - 104 (chain A) in PDB entry 4ZGM


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 99 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82A  ASN*     3.3    28.1    +      -       +      -
     83A  VAL      3.2    21.1    -      -       -      +
     84A  SER*     3.8    13.0    +      -       -      -
     85A  CYS      4.2     0.9    -      -       -      +
     97A  GLN*     3.2    34.0    +      -       -      -
     98A  GLY*     1.3    74.4    -      -       -      -
    100A  VAL*     1.3    60.5    +      -       -      +
    101A  TYR*     3.4    35.7    +      -       +      +
    122A  ASP      4.2     1.9    -      -       -      +
    125A  GLU*     2.8    28.3    +      -       -      +
    126A  CYS*     4.0     6.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 100 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69A  TYR*     4.5     7.6    -      -       +      -
     70A  ALA*     4.3     8.5    -      -       +      -
     72A  TRP*     3.5    20.8    -      -       +      -
     82A  ASN*     3.3     5.0    -      -       -      -
     83A  VAL*     2.8    58.9    +      -       +      +
     84A  SER      4.3     5.6    -      -       -      +
     86A  PRO*     4.8     2.2    -      -       +      -
     99A  HIS*     1.3    74.2    -      -       -      +
    101A  TYR*     1.3    65.5    +      -       -      +
    122A  ASP      3.3     8.5    -      -       -      +
    123A  LEU*     3.0    41.1    -      -       +      +
    126A  CYS*     4.2     7.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 101 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72A  TRP*     3.5     6.0    -      -       -      -
     80A  PHE*     4.7    15.0    -      +       +      -
     81A  VAL      3.3     7.6    -      -       -      +
     82A  ASN*     3.6    30.7    -      -       +      -
     99A  HIS*     3.4    23.8    +      -       +      +
    100A  VAL*     1.3    73.9    -      -       -      +
    102A  ARG*     1.3    63.4    +      -       -      +
    120A  TRP*     3.8    16.9    -      +       +      -
    121A  ARG*     3.2    10.9    -      -       -      +
    122A  ASP*     2.9    50.3    +      -       +      +
    125A  GLU*     2.8    35.4    +      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 102 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65A  THR*     3.6    13.5    -      -       -      +
     67A  ASP*     3.2    34.6    +      -       -      +
     72A  TRP*     3.3    50.2    -      -       +      +
     80A  PHE*     3.4     9.5    -      -       -      -
     81A  VAL      2.9    28.4    +      -       -      +
    101A  TYR*     1.3    72.5    -      -       -      +
    103A  PHE*     1.3    60.9    +      -       -      +
    104A  CYS      4.3     0.2    -      -       -      -
    110A  TRP*     3.3    60.0    -      -       +      +
    119A  PRO*     3.4    29.5    -      -       -      +
    120A  TRP*     3.7    24.5    -      -       -      +
    121A  ARG*     4.1     5.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 103 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78A  GLY*     3.8    20.2    -      -       -      -
     79A  SER*     3.5    29.8    -      -       -      -
     80A  PHE*     3.6    39.7    -      +       +      -
    102A  ARG*     1.3    75.0    -      -       -      +
    104A  CYS*     1.3    64.9    +      -       -      +
    105A  THR*     3.9    20.9    -      -       +      -
    106A  ALA      5.3     0.2    -      -       -      -
    110A  TRP*     3.6     7.4    -      -       -      -
    111A  LEU*     2.8    59.4    +      -       +      +
    120A  TRP*     3.7     7.3    +      -       +      -
    201A  32M      5.6     0.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 104 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61A  PHE      4.5     0.4    -      -       -      -
     62A  CYS*     2.0    61.5    -      -       +      -
     75A  GLY*     3.5     7.2    -      -       -      -
     76A  GLU      3.4    26.0    -      -       -      +
     77A  PRO*     3.8     1.6    -      -       -      -
     78A  GLY*     2.7    28.1    +      -       -      -
     79A  SER      2.9    20.0    +      -       -      +
     81A  VAL*     4.4     0.4    -      -       +      -
    103A  PHE*     1.3    73.8    -      -       -      +
    105A  THR*     1.3    60.7    +      -       -      +
    108A  GLY*     4.5     0.4    -      -       -      -
    110A  TRP*     4.0    11.1    -      -       +      -
----------------------------------------------------------
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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