Contacts of the helix formed by residues 357 - 362 (chain C) in PDB entry 4DVQ
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 LYS 357 (chain C).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
350C SER* 3.7 24.4 + - - +
351C ILE* 4.5 2.7 - - + -
353C GLU* 5.2 3.6 + - - -
354C HIS* 2.9 46.0 + - + +
356C GLN* 1.3 74.7 - - + +
358C ALA* 1.3 66.2 + - - +
359C THR 3.1 2.9 - - - -
360C THR* 3.0 11.3 + - - +
361C GLU* 2.8 45.3 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 358 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
158C LEU* 4.5 5.4 - - + -
351C ILE* 4.1 20.3 - - + +
355C PRO 3.1 17.6 + - - +
357C LYS* 1.3 77.8 - - - +
359C THR* 1.3 66.8 + - - +
362C LEU* 3.2 30.0 + - + +
461C LEU* 3.7 15.3 - - + +
462C LEU* 3.8 26.2 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with THR 359 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
154C VAL* 4.4 11.0 - - + -
155C GLN* 5.0 3.4 + - - +
158C LEU* 3.5 29.6 - - + -
356C GLN 3.2 13.7 + - - -
358C ALA* 1.3 80.1 - - - +
360C THR* 1.3 75.2 + - - +
362C LEU 4.1 3.1 + - - -
363C PRO* 5.0 0.5 - - - +
366C ARG* 3.3 39.9 + - - +
458C ALA* 6.3 1.3 - - + -
461C LEU* 4.3 10.3 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with THR 360 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
357C LYS* 3.0 13.4 + - - +
359C THR* 1.3 86.9 + - - +
361C GLU* 1.3 72.1 + - - +
362C LEU 3.4 1.2 + - - -
363C PRO* 3.9 11.0 - - - +
366C ARG* 6.2 0.2 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 361 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
343C GLU* 4.0 7.6 - - - +
347C ALA* 4.0 22.5 - - + +
350C SER* 3.1 28.7 + - - +
351C ILE* 4.6 6.1 - - + -
357C LYS* 2.8 47.7 + - + +
360C THR* 1.3 75.1 + - - +
362C LEU* 1.3 65.1 + - - +
363C PRO* 3.2 13.1 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 362 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
343C GLU* 3.4 17.7 - - + +
344C SER* 3.8 17.5 - - - +
347C ALA* 4.0 10.3 - - + -
351C ILE* 3.7 23.8 - - + -
358C ALA* 3.2 22.4 + - + +
359C THR 4.1 1.3 + - - -
360C THR 3.4 0.8 - - - -
361C GLU* 1.3 87.4 - - - +
363C PRO* 1.3 58.5 - - - +
364C LEU 3.3 2.5 - - - -
365C LEU* 3.3 16.7 + - + -
366C ARG* 3.0 30.6 + - - +
461C LEU* 4.2 13.5 - - + -
465C HIS* 3.6 33.4 - - + +
----------------------------------------------------------
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