Contacts of the helix formed by residues 58 - 63 (chain E) in PDB entry 3T0E
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.
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 ARG 58 (chain E).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
88A GLU* 4.1 5.3 + - - +
13E GLU* 4.2 16.3 + - - -
57E SER* 1.3 77.7 + - - +
59E ARG* 1.3 62.1 + - - +
60E SER* 3.2 17.9 + - - +
61E LEU* 3.2 43.3 + - + +
62E TRP* 2.9 21.2 + - - -
68E PRO* 4.0 6.8 - - + +
70E ILE* 3.8 20.0 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 59 (chain E).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
88A GLU* 3.0 36.1 + - + +
89A VAL 5.6 0.4 - - - +
90A THR* 2.9 46.9 + - + +
92A LEU* 6.3 0.6 - - - +
108A PHE* 3.8 21.2 - - - -
176A LYS* 4.4 10.5 + - - -
42E SER 4.2 10.7 + - - -
44E LEU* 4.3 28.7 - - + +
56E ASP* 5.8 0.8 + - - +
57E SER 4.3 7.0 - - - +
58E ARG* 1.3 70.1 - - - +
60E SER* 1.3 65.9 + - - +
62E TRP* 3.1 50.6 + - + +
63E ASP 4.5 0.7 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with SER 60 (chain E).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
86A PRO* 6.1 1.8 - - - +
87A PRO 4.3 18.4 - - - -
88A GLU* 3.9 15.4 + - - +
89A VAL 5.5 0.4 - - - +
176A LYS* 5.0 8.5 - - - +
58E ARG* 3.6 22.9 + - - +
59E ARG* 1.3 80.3 + - - +
61E LEU* 1.3 62.7 + - - +
62E TRP 3.1 1.5 + - - -
63E ASP* 3.7 19.5 + - - +
64E GLN* 4.8 3.1 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 61 (chain E).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
13E GLU* 4.7 5.6 - - - +
58E ARG* 3.2 46.5 + - + +
59E ARG 3.1 1.0 - - - -
60E SER* 1.3 82.1 + - - +
62E TRP* 1.3 54.8 + - - +
63E ASP 3.4 1.3 - - - -
64E GLN* 3.1 37.6 - - - +
66E ASN* 2.6 48.7 - - + +
68E PRO* 4.3 13.2 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with TRP 62 (chain E).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
176A LYS* 6.5 0.2 - - - -
23E SER* 3.4 30.4 - - - +
26E PHE* 3.3 24.3 - + - -
39E ASN* 3.3 40.2 - - + -
41E GLY 4.5 6.1 - - - -
42E SER* 4.7 6.5 - - - -
43E PHE 4.0 9.0 - - - -
44E LEU* 3.4 28.7 - - + -
57E SER* 3.7 18.2 + - - -
58E ARG 2.9 28.3 + - - -
59E ARG* 3.1 37.7 + - + +
61E LEU* 1.3 80.6 - - - +
63E ASP* 1.3 71.1 + - - +
64E GLN 2.9 5.9 - - - +
66E ASN 3.8 5.8 - - - -
67E PHE* 3.7 22.5 - + + +
68E PRO* 4.6 2.3 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 63 (chain E).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
174A LEU* 5.1 6.1 - - - +
175A LEU 6.0 1.1 - - - -
176A LYS* 3.0 38.7 - - - +
21E LYS 4.2 0.2 - - - -
22E LYS* 3.0 25.3 - - - -
23E SER* 3.1 9.0 + - - +
59E ARG 4.5 0.2 + - - -
60E SER* 3.7 12.0 - - - +
61E LEU 3.4 0.6 - - - -
62E TRP* 1.3 79.8 - - - +
64E GLN* 1.3 66.3 + - - +
----------------------------------------------------------
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