Contacts of the strand formed by residues 747 - 751 (chain B) in PDB entry 5IYB
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 747 (chain B).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
745B ASP* 2.9 9.3 + - - +
746B THR* 1.3 86.6 - - + +
748B ALA* 1.3 65.7 + - - +
749B HIS* 3.5 21.8 - - + +
810B PHE* 3.3 36.6 - - + -
811B TYR 3.5 6.1 - - - +
812B ARG* 4.4 13.5 - - - +
55Y G 5.5 12.3 - - - +
56Y G 5.9 4.7 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 748 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
736B TYR* 3.2 35.0 - - + +
745B ASP* 4.4 8.5 + - + +
747B LEU* 1.3 76.3 - - - +
749B HIS* 1.3 64.3 + - - +
750B VAL* 4.2 1.6 - - + -
810B PHE* 3.7 6.8 - - - -
811B TYR* 2.9 51.4 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with HIS 749 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
473B LEU* 4.1 25.3 + - + +
733B MET* 3.3 29.6 - - + +
734B GLY 3.1 14.0 + - - +
736B TYR* 3.9 8.6 - - - -
747B LEU* 3.5 24.5 - - + +
748B ALA* 1.3 74.1 - - - +
750B VAL* 1.3 65.2 + - - +
809B VAL 3.9 3.7 + - - -
810B PHE* 3.1 33.2 - + - +
1052B LYS* 4.1 15.3 + - + +
1054B MET* 3.3 42.5 - - + +
1057B ASP* 5.0 2.6 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 750 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
733B MET* 4.8 2.9 - - - -
734B GLY 3.5 4.0 - - - +
735B VAL* 3.4 18.8 - - + -
736B TYR* 3.9 22.7 - - + -
740B PHE* 3.9 38.8 - - + -
748B ALA* 4.2 1.1 - - + -
749B HIS* 1.3 80.8 - - - +
751B LEU* 1.3 75.5 + - - +
752B TYR* 6.1 0.2 - - + -
808B SER* 3.2 6.1 - - - -
809B VAL* 3.1 46.9 + - + +
811B TYR* 4.9 7.4 - - + -
1J MET* 4.5 3.4 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 751 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
733B MET* 4.6 9.6 - - + +
734B GLY* 3.9 22.8 + - - +
735B VAL* 3.5 8.3 - - - +
750B VAL* 1.3 90.0 - - - +
752B TYR* 1.3 68.4 + - - +
753B TYR 4.1 10.5 - - - +
754B PRO* 4.1 8.0 - - + +
774B ALA 4.9 2.9 - - - +
775B GLY* 4.1 12.6 - - - +
776B ILE* 3.9 32.1 - - + -
806B PHE* 3.7 26.7 - - + +
807B ARG 3.2 19.3 - - - +
808B SER* 3.4 13.5 - - - -
1050B ARG* 4.8 7.6 - - + -
1J MET* 4.5 1.2 - - - +
----------------------------------------------------------
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