Contacts of the strand formed by residues 340 - 344 (chain A) in PDB entry 1JX6
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 PHE 340 (chain A).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
178A PHE* 3.4 32.8 - - + -
179A ASP* 3.2 33.7 - - + -
182A GLU* 4.1 11.7 - - + -
183A GLY* 3.7 7.9 - - - -
186A GLU* 3.7 25.7 + - - +
289A TRP* 3.7 26.7 - + - -
308A VAL* 3.4 30.1 - - + -
309A MET 3.2 5.2 - - - -
310A ARG* 3.9 20.0 - - + -
311A MET* 4.9 0.2 - - - -
338A GLY 4.5 4.0 - - - -
339A ASP* 1.3 83.0 - - - +
341A GLU* 1.3 76.1 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 341 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
186A GLU* 4.8 1.1 - - - -
308A VAL* 4.8 0.7 - - - -
309A MET* 2.8 34.0 + - + +
311A MET* 3.8 22.2 - - + -
340A PHE* 1.3 83.5 - - - +
342A ILE* 1.3 64.1 + - - +
343A VAL* 3.9 0.2 - - - +
351A ARG* 4.0 18.3 + - - +
355A LEU* 3.8 34.0 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 342 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
186A GLU* 3.9 39.4 + - + +
187A LEU* 4.1 20.6 - - + -
190A GLU* 4.2 20.9 - - + +
306A ILE* 3.8 23.8 - - + -
307A THR 3.7 10.1 - - - +
308A VAL* 4.2 8.7 - - + -
341A GLU* 1.3 74.3 + - - +
343A VAL* 1.3 64.9 + - - +
344A THR* 4.2 10.9 - - + +
347A ASP* 4.2 3.8 - - - +
351A ARG* 3.8 16.9 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 343 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
296A LEU* 4.5 8.1 - - + -
299A ILE* 4.0 13.9 - - + +
306A ILE* 3.1 5.0 - - - +
307A THR* 2.9 43.6 + - + +
309A MET* 3.8 24.5 - - + -
341A GLU 3.9 0.7 - - - +
342A ILE* 1.3 76.3 - - - +
344A THR* 1.3 70.0 + - - +
347A ASP* 3.3 6.3 - - - +
352A ILE* 3.5 28.5 - - + -
355A LEU* 3.4 31.6 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with THR 344 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
190A GLU* 5.5 0.4 - - + -
194A PHE* 5.0 11.4 - - + -
299A ILE* 3.4 13.8 - - - +
305A ASP 3.3 11.4 - - - -
306A ILE* 4.0 17.9 - - + +
342A ILE* 4.2 11.9 - - + +
343A VAL* 1.3 79.1 - - - +
345A LYS* 1.3 64.6 + - - +
346A ALA* 3.1 19.9 + - - +
347A ASP* 2.6 39.7 + - - +
352A ILE* 4.8 0.2 - - - +
----------------------------------------------------------
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