Contacts of the strand formed by residues 501 - 504 (chain B) in PDB entry 2QY0
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 ASP 501 (chain B).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
463B PHE 3.9 0.3 - - - +
464B THR* 3.3 6.2 - - - -
465B ASN* 3.0 43.1 + - + +
466B ILE* 4.5 1.5 - - - +
499B SER* 3.1 29.2 + - - -
500B LEU* 1.3 72.1 - - - +
502B VAL* 1.3 61.5 + - - +
503B PHE* 4.1 9.5 - - + -
517B ASN* 5.3 1.1 - - - -
305C GLN* 4.1 0.7 - - - +
306C ASN* 5.2 2.9 + - - -
316C TYR* 2.5 34.7 + - - +
318C ILE* 3.1 31.4 - - + +
802C GOL 4.8 2.8 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 502 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
462B VAL* 3.8 13.2 - - + -
463B PHE 3.6 2.2 - - - -
464B THR* 4.1 8.7 - - + -
466B ILE* 5.8 0.9 - - + -
480B ILE* 3.5 28.3 - - + -
500B LEU* 3.6 6.7 + - + +
501B ASP* 1.3 79.2 - - - +
503B PHE* 1.3 67.5 + - - +
504B LEU* 4.5 6.1 - - + -
517B ASN* 3.5 5.7 - - - +
518B HIS* 2.9 43.6 + - + +
520B ILE* 3.9 14.6 - - + -
544B LEU* 3.8 27.8 - - + -
546B LEU* 4.6 3.4 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 503 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
462B VAL* 3.6 0.5 - - - +
463B PHE* 2.8 58.3 + + + +
465B ASN* 5.2 0.4 - - + -
501B ASP* 4.1 13.9 - - + -
502B VAL* 1.3 74.4 - - - +
504B LEU* 1.3 71.0 + - - +
512B LEU* 3.4 38.6 - - + +
513B MET* 3.7 20.9 - - + -
516B GLY 3.6 12.3 - - - -
517B ASN* 3.4 28.9 - - + -
518B HIS* 4.4 2.7 - - - -
316C TYR* 4.0 43.3 - + - -
338C THR* 3.7 10.8 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 504 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
461B GLN 4.1 4.5 - - - +
462B VAL* 3.1 51.8 - - + -
474B LEU* 4.5 10.8 - - + -
480B ILE* 4.5 4.5 - - + -
502B VAL* 4.5 3.6 - - + -
503B PHE* 1.3 76.2 - - - +
505B GLY* 1.3 59.7 + - - +
512B LEU* 3.4 11.9 + - - +
515B LEU* 3.4 23.6 - - - +
516B GLY 5.0 0.6 + - - -
518B HIS* 4.1 22.3 + - + +
546B LEU* 4.3 13.5 - - + -
550B VAL* 3.7 28.9 - - + -
556B LEU* 4.0 22.0 - - + -
----------------------------------------------------------
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