Contacts of the helix formed by residues 363 - 369 (chain A) in PDB entry 3CS0
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 ASP 363 (chain A).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
361A GLN 3.2 3.7 + - - +
362A VAL* 1.3 74.7 - - - +
364A SER* 1.3 55.5 + - - +
365A SER* 2.5 42.7 + - - +
366A SER* 2.8 22.1 + - - -
367A ILE 3.9 1.6 + - - -
372A GLU* 5.1 1.0 - - - -
373A GLY 3.3 21.4 + - - +
375A GLU* 3.1 30.9 - - - +
376A MSE 4.2 3.4 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with SER 364 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
363A ASP* 1.3 69.8 - - - +
365A SER* 1.3 55.7 + - - +
366A SER 3.6 0.2 - - - -
368A PHE* 3.1 37.4 + - - +
371A ILE 2.8 22.4 + - - +
373A GLY* 2.7 27.6 + - - -
374A ALA 2.8 20.7 + - - -
375A GLU* 4.0 1.4 - - - +
376A MSE 3.3 27.7 - - - +
396A ALA* 3.8 9.3 - - - +
401A LEU* 4.9 2.9 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with SER 365 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
109A ASN* 5.6 2.2 - - - +
363A ASP* 2.5 33.5 + - - +
364A SER* 1.3 76.0 + - - +
366A SER* 1.3 59.6 + - - -
367A ILE 3.2 2.2 - - - -
369A ASN* 2.8 31.3 + - - +
370A GLY* 3.7 10.8 + - - +
371A ILE 4.0 11.7 - - - -
372A GLU* 4.9 4.0 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with SER 366 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
127A MSE 5.0 4.2 - - - +
130A LYS* 4.0 36.9 + - - +
362A VAL* 3.1 26.2 - - - +
363A ASP* 2.8 31.0 + - - -
365A SER* 1.3 76.5 + - - +
367A ILE* 1.3 53.4 + - - +
369A ASN* 4.5 1.4 - - - +
422A ARG* 2.6 25.3 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 367 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
362A VAL* 3.6 21.5 - - + -
363A ASP 3.9 1.0 + - - -
365A SER 3.2 0.2 - - - -
366A SER* 1.3 78.6 - - - +
368A PHE* 1.3 60.0 + - + +
369A ASN* 3.6 1.1 - - - -
376A MSE 3.3 31.9 - - + -
385A VAL* 5.3 1.1 - - + -
418A ILE* 3.4 34.3 - - + -
421A LEU* 3.1 33.4 - - + -
422A ARG* 3.5 37.0 - - + +
425A LEU* 2.9 27.4 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 368 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
364A SER* 3.1 19.5 + - - +
367A ILE* 1.3 84.4 - - + +
369A ASN* 1.3 73.3 + - - +
371A ILE* 3.3 53.5 - - + +
376A MSE 4.6 17.7 - - + -
399A ILE* 6.4 0.4 - - + -
401A LEU* 4.3 19.5 - - + -
407A ILE* 4.9 12.6 - - + -
421A LEU* 4.3 14.1 - - + -
425A LEU* 3.7 19.7 - - + -
432A LEU* 4.3 13.9 - - + -
434A LEU* 4.9 6.5 - - + -
447A MSE 4.2 20.9 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ASN 369 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
34A SER* 5.2 7.3 + - - +
109A ASN* 4.0 27.2 - - - +
110A ALA 4.1 8.5 - - - +
111A THR* 3.7 27.1 + - - +
365A SER 2.8 17.5 + - - +
366A SER 4.5 2.0 - - - +
367A ILE 3.6 1.9 - - - -
368A PHE* 1.3 83.3 - - - +
370A GLY* 1.3 57.1 + - - +
371A ILE* 4.2 2.8 - - - +
----------------------------------------------------------
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