Contacts of the helix formed by residues 2441 - 2456 (chain C) in PDB entry 1G50


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 GLN2441 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2393C  TRP*     3.5     1.1    -      -       -      -
   2439C  ASN*     3.6    31.7    +      -       -      +
   2440C  LEU*     1.3    73.2    +      -       -      +
   2442C  GLY*     1.3    60.0    +      -       -      +
   2443C  GLU*     2.6    40.0    +      -       -      +
   2444C  GLU*     2.7    35.0    +      -       +      +
   2445C  PHE      3.4     5.5    +      -       -      -
   2489C  LEU*     5.6     1.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY2442 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2320C  LEU*     4.5     8.1    -      -       -      +
   2393C  TRP*     3.0    30.0    -      -       -      -
   2441C  GLN*     1.3    75.1    +      -       -      +
   2443C  GLU*     1.3    59.3    +      -       -      +
   2445C  PHE*     3.0    23.6    -      -       -      +
   2446C  VAL*     3.4     9.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU2443 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2316C  VAL*     4.0    19.0    -      -       +      +
   2320C  LEU*     4.5    10.7    -      -       +      +
   2441C  GLN*     2.6    31.7    +      -       -      +
   2442C  GLY*     1.3    69.9    +      -       -      +
   2444C  GLU*     1.3    62.7    +      -       -      +
   2445C  PHE      3.0     1.3    -      -       -      -
   2446C  VAL*     2.8    30.0    -      -       -      +
   2447C  CYS*     3.4     9.1    +      -       -      -
   2489C  LEU*     3.1    47.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU2444 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2439C  ASN      3.7     0.5    -      -       -      +
   2440C  LEU*     3.3    18.8    -      -       +      +
   2441C  GLN*     2.7    38.9    +      -       +      +
   2443C  GLU*     1.3    73.0    -      -       -      +
   2445C  PHE*     1.3    62.4    +      -       -      +
   2447C  CYS*     3.1     6.6    +      -       -      +
   2448C  LEU*     3.0    23.6    +      -       -      +
   2486C  LEU*     3.8    23.0    -      -       +      +
   2489C  LEU*     4.9    15.0    -      -       +      -
   2490C  MET*     4.4     9.5    -      -       +      +
   2503C  ARG*     2.5    50.5    +      -       -      -
   2507C  LEU*     4.1     9.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE2445 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2323C  GLU*     4.3    15.3    -      -       -      -
   2389C  ILE*     3.5    42.6    -      -       +      -
   2390C  GLY*     3.8    15.3    -      -       -      -
   2393C  TRP*     3.6    63.0    -      +       +      -
   2435C  PHE*     5.2     0.7    -      +       -      -
   2440C  LEU*     4.4     6.1    -      -       +      +
   2441C  GLN      3.4     1.6    +      -       -      -
   2442C  GLY*     3.0    13.4    +      -       -      +
   2444C  GLU*     1.3    79.0    -      -       -      +
   2446C  VAL*     1.3    60.2    +      -       +      +
   2448C  LEU*     2.9    11.7    +      -       -      +
   2449C  LYS*     2.7    56.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL2446 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2316C  VAL*     4.7     4.9    -      -       +      +
   2319C  LEU*     3.5    40.3    -      -       +      +
   2320C  LEU*     3.7    30.5    -      -       +      -
   2323C  GLU*     3.9    22.0    -      -       +      +
   2360C  TRP*     6.0     0.7    -      -       -      +
   2442C  GLY      4.2     2.7    -      -       -      +
   2443C  GLU*     2.8    34.5    -      -       +      +
   2445C  PHE*     1.3    81.2    -      -       +      +
   2447C  CYS*     1.3    62.0    +      -       -      +
   2449C  LYS*     3.8     7.2    -      -       -      +
   2450C  SER*     2.8    31.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS2447 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2316C  VAL*     5.6     2.5    -      -       -      -
   2319C  LEU*     4.0    13.2    -      -       -      -
   2443C  GLU      3.7    10.3    -      -       -      -
   2444C  GLU      3.1     9.6    +      -       -      +
   2445C  PHE      3.1     0.4    -      -       -      -
   2446C  VAL*     1.3    82.7    -      -       -      +
   2448C  LEU*     1.3    64.6    +      -       -      +
   2450C  SER*     2.9    13.6    +      -       -      -
   2451C  ILE*     2.9    19.1    +      -       -      +
   2482C  ILE*     4.0    12.8    -      -       +      -
   2485C  THR*     4.1    25.1    -      -       -      -
   2486C  LEU*     3.2    41.3    -      -       +      -
   2489C  LEU*     5.8     1.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU2448 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2389C  ILE*     3.6    14.4    -      -       +      -
   2435C  PHE*     4.3    13.7    -      -       +      -
   2440C  LEU*     3.9    21.5    -      -       +      -
   2444C  GLU      3.0    11.0    +      -       -      +
   2445C  PHE*     2.9     8.0    +      -       -      +
   2447C  CYS*     1.3    78.1    -      -       +      +
   2449C  LYS*     1.3    58.7    +      -       -      +
   2450C  SER      2.9     6.1    +      -       -      -
   2451C  ILE*     2.9    23.4    +      -       +      +
   2452C  ILE*     3.2    14.4    +      -       -      +
   2486C  LEU*     5.3     3.8    -      -       +      -
   2507C  LEU*     3.4    46.9    -      -       +      +
   2508C  LEU*     4.8     2.7    -      -       +      -
   2510C  ILE*     5.9     0.7    -      -       +      -
   2511C  LEU*     3.6    33.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS2449 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2323C  GLU*     2.9    37.4    +      -       -      +
   2324C  PRO*     3.4    22.0    -      -       -      +
   2357C  MET*     6.1     0.9    -      -       -      -
   2360C  TRP*     3.0    37.9    -      -       +      -
   2386C  ILE*     3.9    27.0    -      -       +      +
   2389C  ILE*     3.8    21.4    -      -       +      +
   2390C  GLY*     5.7     3.0    -      -       -      -
   2445C  PHE*     2.7    38.4    +      -       +      +
   2446C  VAL*     4.0     6.5    -      -       -      +
   2448C  LEU*     1.3    71.2    -      -       -      +
   2450C  SER*     1.3    58.5    +      -       -      +
   2451C  ILE      3.5     0.2    -      -       -      -
   2452C  ILE*     4.2     6.2    +      -       -      +
   2453C  LEU*     3.9     8.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER2450 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2319C  LEU*     3.3    29.9    -      -       -      +
   2360C  TRP*     3.5    20.4    -      -       -      -
   2364C  VAL*     4.1    11.0    -      -       -      +
   2446C  VAL      2.8    21.0    +      -       -      -
   2447C  CYS*     2.9     7.1    +      -       -      -
   2448C  LEU      2.9     0.2    +      -       -      -
   2449C  LYS*     1.3    75.2    -      -       -      +
   2451C  ILE*     1.3    63.7    +      -       -      +
   2452C  ILE      3.4     0.7    -      -       -      -
   2453C  LEU*     3.7     4.0    -      -       -      +
   2454C  LEU*     3.6    28.6    +      -       -      +
   2482C  ILE*     4.5     8.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE2451 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1509B  LEU*     4.0    32.3    -      -       +      -
   2447C  CYS      2.9    24.0    -      -       -      +
   2448C  LEU*     2.9    12.7    +      -       +      +
   2450C  SER*     1.3    75.8    -      -       -      +
   2452C  ILE*     1.3    58.2    +      -       -      +
   2453C  LEU      3.1     1.8    -      -       -      -
   2455C  ASN*     2.7    35.8    +      -       +      +
   2479C  LEU*     3.7    20.6    -      -       +      +
   2482C  ILE*     3.9    27.8    -      -       +      -
   2483C  THR*     5.9     0.9    -      -       -      +
   2486C  LEU*     4.4    14.8    -      -       +      -
   2508C  LEU*     4.5    13.7    -      -       +      -
   2511C  LEU*     4.3     6.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE2452 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2382C  ALA*     3.4     3.8    -      -       +      +
   2385C  GLU*     3.6    55.4    -      -       +      +
   2386C  ILE*     3.7    14.8    -      -       +      -
   2389C  ILE*     3.9    34.1    -      -       +      -
   2448C  LEU      3.2     8.7    +      -       -      +
   2449C  LYS*     4.3     5.8    -      -       -      +
   2451C  ILE*     1.3    78.8    -      -       -      +
   2453C  LEU*     1.3    60.4    +      -       -      +
   2455C  ASN*     5.1     0.9    -      -       -      -
   2456C  SER*     3.1    27.9    +      -       -      +
   2511C  LEU*     4.0    25.1    -      -       +      -
   2514C  ILE*     4.3     9.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU2453 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2360C  TRP*     3.6    21.3    -      -       +      -
   2361C  ALA*     4.1     6.1    -      -       -      -
   2364C  VAL*     3.5    39.9    -      -       +      -
   2367C  PHE*     4.1    24.2    -      -       +      -
   2378C  LEU*     3.5    26.6    -      -       -      +
   2379C  LEU*     3.7    38.6    -      -       +      +
   2382C  ALA*     4.6     1.8    -      -       -      -
   2386C  ILE*     3.9    17.4    -      -       +      +
   2449C  LYS      3.9     1.2    +      -       -      +
   2450C  SER      3.7     9.1    -      -       -      +
   2451C  ILE      3.1     0.4    -      -       -      -
   2452C  ILE*     1.3    82.2    -      -       -      +
   2454C  LEU*     1.3    60.4    +      -       +      +
   2456C  SER      4.4     1.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU2454 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2364C  VAL*     4.4    12.1    -      -       +      -
   2365C  PRO      4.5     1.8    -      -       -      +
   2366C  GLY      5.5     0.9    -      -       -      -
   2367C  PHE*     4.0    24.2    -      -       +      -
   2370C  LEU*     4.6     7.0    -      -       +      -
   2378C  LEU*     3.7    30.2    -      -       +      +
   2450C  SER      3.6    16.5    +      -       -      +
   2451C  ILE      3.3     1.6    +      -       -      -
   2452C  ILE      3.3     0.4    -      -       -      -
   2453C  LEU*     1.3    82.8    -      -       +      +
   2455C  ASN*     1.3    58.2    +      -       -      +
   2456C  SER      3.6     0.2    -      -       -      -
   2458C  VAL*     3.3    19.4    -      -       -      +
   2475C  ILE*     3.4    30.0    -      -       +      +
   2478C  VAL*     4.1    24.5    -      -       +      -
   2479C  LEU*     3.7    19.3    -      -       +      -
   2482C  ILE*     4.2     4.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN2455 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1509B  LEU*     3.4    48.1    +      -       -      +
   1512B  SER*     3.9    13.7    +      -       -      -
   1513B  HIS*     5.4     0.4    -      -       -      +
   2451C  ILE*     2.7    27.5    +      -       +      +
   2452C  ILE*     5.1     0.7    -      -       -      -
   2454C  LEU*     1.3    73.7    -      -       -      +
   2456C  SER*     1.3    62.1    +      -       -      +
   2457C  GLY      3.1     1.9    +      -       -      -
   2458C  VAL*     2.9    22.6    -      -       -      +
   2459C  TYR*     3.2    26.4    +      -       -      -
   2479C  LEU*     3.8    16.2    -      -       +      +
   2511C  LEU*     5.7     0.8    -      -       -      +
   2515C  ARG*     4.8     1.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER2456 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1512B  SER*     4.7     2.1    +      -       -      -
   2378C  LEU*     4.1    13.7    -      -       -      +
   2381C  CYS*     4.0    13.9    -      -       -      +
   2382C  ALA*     3.5     8.7    -      -       -      -
   2385C  GLU*     2.6    41.4    +      -       -      -
   2452C  ILE*     3.1    24.2    +      -       -      +
   2453C  LEU      4.4     0.7    -      -       -      +
   2455C  ASN*     1.3    75.7    +      -       -      +
   2457C  GLY*     1.3    63.9    +      -       -      +
   2515C  ARG*     3.3    17.1    +      -       -      +
----------------------------------------------------------
 Back to top of page


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