Contacts of the strand formed by residues 326 - 330 (chain A) in PDB entry 4OI0
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 THR 326 (chain A).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
325A VAL* 1.3 72.4 + - - +
327A LEU* 1.3 64.7 + - - +
328A CYS* 3.8 0.7 + - + -
355A ILE* 3.5 41.1 - - + -
375A ALA* 4.1 15.3 - - + +
412A LYS 2.8 12.5 + - - -
413A VAL* 3.7 7.9 - - - +
414A LEU 3.1 23.7 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 327 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
322A PHE* 4.4 9.6 - - + -
325A VAL* 4.1 11.6 + - + +
326A THR* 1.3 72.9 - - - +
328A CYS* 1.3 56.1 + - - +
355A ILE* 3.6 7.1 - - - +
356A MET* 2.8 48.6 + - + +
358A PRO* 4.1 22.0 - - + -
362A ILE* 3.7 32.3 - - + -
367A PHE* 3.9 20.9 - - + -
400A MET* 4.3 11.2 - - + -
414A LEU* 3.5 35.7 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with CYS 328 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
326A THR 4.7 0.7 - - - +
327A LEU* 1.3 76.2 - - - +
329A LYS* 1.3 62.1 + - - +
353A LEU* 3.5 28.7 - - + -
354A VAL 3.2 13.7 - - - +
355A ILE* 3.9 14.4 - - + -
356A MET* 4.0 3.6 - - - +
375A ALA* 4.6 2.5 - - + -
379A VAL* 4.3 1.6 - - - -
413A VAL* 4.1 23.8 - - - -
414A LEU 3.1 15.2 + - - -
415A VAL* 3.5 15.8 - - - -
416A PHE* 2.8 29.5 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 329 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
328A CYS* 1.3 77.3 - - - +
330A ILE* 1.3 73.7 + - - +
331A GLY 4.6 8.5 - - - -
353A LEU* 4.2 2.2 - - - -
354A VAL* 2.8 43.0 + - + +
356A MET* 3.8 36.5 - - + +
415A VAL* 4.9 0.2 - - - -
416A PHE* 3.7 44.0 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 330 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
187A ASN* 4.0 22.7 - - + +
188A PHE 5.0 2.9 - - - +
190A HIS* 5.1 8.7 + - - -
196A ASN* 5.1 1.8 + - - +
199A LEU* 3.8 33.2 - - + +
329A LYS* 1.3 76.1 - - - +
331A GLY* 1.3 66.2 + - - +
351A THR* 4.4 9.2 - - - +
352A LYS 3.6 5.6 - - - +
353A LEU* 4.6 7.6 - - + +
379A VAL* 5.1 3.8 - - + +
380A LEU* 3.6 44.6 - - + +
415A VAL* 3.9 26.1 - - + +
416A PHE 5.3 3.5 + - - +
----------------------------------------------------------
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