Contacts of the strand formed by residues 395 - 397 (chain X) in PDB entry 3F6B
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 TYR 395 (chain X).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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212X ASP* 4.9 0.7 - - - +
237X ALA 3.6 20.6 - - - -
239X ARG* 3.3 34.9 - - - +
240X CYS* 3.6 21.8 + - + +
372X TYR* 3.2 9.2 - - + -
374X ASN* 3.0 39.5 + - + -
380X THR* 4.0 1.4 - - - +
383X MET* 4.1 21.8 - - + -
384X TRP* 3.3 33.3 + + - -
389X MET* 3.8 20.6 - - + -
393X GLY 3.6 1.6 - - - -
394X SER* 1.3 80.0 + - - +
396X TYR* 1.3 76.6 + - - +
397X PHE* 3.4 24.0 - - + -
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Residues in contact with TYR 396 (chain X).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
56X GLY* 6.1 0.4 - - - -
59X GLN* 3.6 34.8 - - + -
60X ALA* 3.5 22.0 - - - +
238X PRO 3.2 6.5 - - - +
239X ARG* 3.5 38.1 + - + -
371X ILE* 3.9 16.4 - - + -
372X TYR 3.1 8.1 + - - -
373X LEU* 3.4 13.1 - - + +
374X ASN* 2.9 27.5 + - - +
393X GLY* 3.6 31.8 + - - -
395X TYR* 1.3 85.7 - - - +
397X PHE* 1.3 61.5 + - - +
405X PHE* 3.9 20.7 - + + -
413X VAL* 4.0 23.1 - - + -
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Residues in contact with PHE 397 (chain X).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
236X SER* 5.8 2.9 - - - -
237X ALA 3.7 19.1 - - - +
238X PRO* 3.0 22.9 + - - +
374X ASN* 2.9 30.1 - - - -
375X GLU* 4.3 4.3 - - - -
377X THR* 4.1 28.0 - - + -
380X THR* 3.3 33.9 - - + -
395X TYR* 3.4 26.0 - - + +
396X TYR* 1.3 74.9 - - - +
398X CYS* 1.3 95.4 + - - +
399X ALA 3.0 3.6 + - - -
401X GLY* 6.4 0.2 - - - -
405X PHE* 4.2 5.0 - - - -
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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
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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) + - + + + + + -
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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