Contacts of the strand formed by residues 724 - 728 (chain B) in PDB entry 3ODX
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 ALA 724 (chain B).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
718B VAL* 3.4 26.6 + - + -
721B ASP* 2.8 41.1 + - + +
723B LYS* 1.3 79.3 - - - +
725B PHE* 1.3 60.1 + - - +
739B GLU* 4.2 10.5 - - + +
740B LEU 3.4 6.3 - - - +
741B VAL* 3.5 12.1 - - + -
748B ARG* 3.2 14.1 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 725 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
654B LEU* 4.0 17.9 - - + -
715B THR* 4.8 1.1 - - + -
716B ARG 3.2 13.2 - - - +
717B GLU* 4.8 1.3 - - - -
718B VAL* 3.7 6.7 - - - -
723B LYS 4.9 0.7 - - - -
724B ALA* 1.3 73.9 - - - +
726B TYR* 1.3 76.4 + - - +
727B VAL* 3.7 21.5 - - + -
739B GLU* 3.6 2.1 - - - +
740B LEU* 2.8 62.0 + - + +
742B ALA 4.8 1.1 - - - -
748B ARG* 3.7 25.4 - - + -
751B TRP* 3.8 31.0 - + + -
752B CYS* 3.4 27.4 - - - -
755B ILE* 4.1 14.4 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with TYR 726 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
714B MET 4.4 0.2 - - - -
715B THR* 3.1 11.1 - - - -
716B ARG* 2.5 47.8 + - + +
717B GLU 4.5 8.5 - - - -
718B VAL* 3.9 25.3 - - + +
725B PHE* 1.3 83.1 - - - +
727B VAL* 1.3 64.7 + - - +
728B LEU* 5.9 2.2 - - + -
737B ILE* 4.0 25.8 - - + -
738B TYR 3.7 0.9 - - - -
739B GLU* 3.2 47.0 + - + -
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 727 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
675B LEU* 4.9 11.2 - - + -
708B LEU* 5.4 0.2 - - + -
713B ALA* 4.8 7.0 - - + -
714B MET 3.5 7.6 - - - +
715B THR* 4.3 10.3 - - + -
725B PHE* 3.7 24.0 - - + -
726B TYR* 1.3 77.9 - - - +
728B LEU* 1.3 68.2 + - - +
729B PHE* 3.3 31.6 - - + -
737B ILE* 3.6 5.2 - - - +
738B TYR* 3.0 43.9 + - + +
740B LEU* 4.5 9.9 - - + -
755B ILE* 4.5 9.4 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 728 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
712B SER 3.5 2.3 - - - +
713B ALA* 3.4 6.1 - - - -
714B MET* 3.1 45.4 + - + +
716B ARG* 6.1 4.7 - - + -
726B TYR* 5.6 2.2 - - + -
727B VAL* 1.3 80.2 - - - +
729B PHE* 1.3 67.4 + - - +
730B THR* 3.8 18.1 + - + +
735B ALA* 3.3 35.0 - - + -
736B GLN 4.0 2.2 - - - -
737B ILE* 3.7 26.5 - - + -
----------------------------------------------------------
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