Contacts of the strand formed by residues 320 - 324 (chain A) in PDB entry 1OPL
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 LEU 320 (chain A).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
246A GLY* 4.2 1.7 - - - -
254A TRP* 3.3 27.7 - - + -
306A ALA* 4.2 5.4 - - - +
309A MET* 3.8 25.0 + - + +
310A LYS* 3.5 42.0 - - + +
312A ILE 5.6 0.2 + - - -
318A VAL 3.9 3.0 + - - -
319A GLN* 1.3 98.7 + - - +
321A LEU* 1.3 61.4 + - - +
322A GLY 3.6 13.7 - - - +
323A VAL* 4.2 9.6 - - + -
332A ILE* 3.6 24.5 - - + -
333A ILE 3.5 16.8 - - - +
334A THR* 4.3 4.9 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 321 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
244A VAL 4.9 2.5 - - - +
246A GLY* 4.1 25.6 - - - +
247A VAL* 4.1 19.4 + - + +
253A LYS 5.2 1.4 - - - +
254A TRP* 3.7 16.0 - - - +
280A TRP* 4.0 25.6 - - + -
285A LEU* 4.1 17.3 - - + -
286A THR 5.5 0.2 - - - +
287A VAL* 3.9 18.2 - - + -
319A GLN* 4.5 8.1 - - + +
320A LEU* 1.3 82.7 - - - +
322A GLY* 1.3 59.8 + - - +
333A ILE* 2.7 12.2 + - + +
334A THR 3.8 6.1 - - - +
335A GLU* 3.8 33.4 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with GLY 322 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
254A TRP* 3.2 21.1 - - - -
256A MET* 4.5 8.5 - - - -
280A TRP* 4.8 1.8 - - - -
320A LEU* 3.6 2.9 - - - +
321A LEU* 1.3 81.1 - - - +
323A VAL* 1.3 70.1 + - - +
333A ILE* 2.9 35.7 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 323 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
254A TRP* 3.0 14.0 + - + -
255A GLU* 3.3 35.4 - - + +
256A MET* 2.9 27.3 + - - +
306A ALA* 4.3 21.8 - - + -
310A LYS* 4.4 14.4 - - - +
320A LEU* 4.2 21.3 - - + -
322A GLY* 1.3 81.0 - - - +
324A CYS* 1.3 64.4 + - - +
325A THR* 4.1 11.0 - - + -
331A TYR 3.4 13.2 - - - +
332A ILE* 4.6 2.0 - - - -
333A ILE* 4.8 0.9 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with CYS 324 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
255A GLU* 3.8 3.6 - - - -
256A MET* 3.2 47.1 - - - +
258A ARG* 3.9 31.3 + - + +
323A VAL* 1.3 71.3 - - - +
325A THR* 1.3 61.1 + - - +
326A ARG* 3.6 3.8 - - - +
327A GLU* 5.1 1.1 - - - +
330A PHE* 3.2 9.9 - - - +
331A TYR* 3.0 55.2 + - + -
333A ILE* 4.4 0.4 - - - -
----------------------------------------------------------
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