Contacts of the strand formed by residues 349 - 352 (chain A) in PDB entry 2X8Y
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 VAL 349 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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316A PRO* 3.8 26.0 - - + -
318A ASP 4.3 0.3 - - - -
319A PHE* 3.3 23.2 + - + +
341A TRP 3.4 7.0 - - - +
342A ASP* 4.0 8.5 - - - +
343A PHE* 4.5 0.2 - - - -
347A ASP* 3.3 2.3 + - - +
348A ASP* 1.3 82.0 + - - +
350A ARG* 1.3 69.3 + - - +
372A ILE* 3.7 29.2 - - + -
375A PHE* 3.8 32.8 - - + -
376A LEU* 4.0 15.5 - - + +
379A GLN* 5.3 2.7 - - - +
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Residues in contact with ARG 350 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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45A GLU* 2.7 33.5 + - - -
48A TRP* 3.3 57.7 - - + +
318A ASP 4.7 0.4 - - - +
319A PHE* 4.0 1.3 - - - -
322A LYS* 3.5 44.5 + - + +
323A SER* 3.4 7.6 - - - +
341A TRP* 2.7 39.7 + - - +
343A PHE* 3.3 25.6 - - + -
348A ASP* 3.1 29.1 + - - +
349A VAL* 1.3 80.6 - - - +
351A ILE* 1.3 61.9 + - - +
372A ILE* 3.4 7.6 - - - +
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Residues in contact with ILE 351 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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48A TRP* 3.7 4.0 - - - -
300A PHE* 3.7 27.8 - - + -
319A PHE* 3.7 13.7 - - + -
323A SER* 3.0 11.6 + - - +
324A ILE 2.9 27.4 + - - +
325A ILE* 5.1 0.4 - - + -
339A SER 3.4 13.9 - - - +
340A ALA* 4.1 2.0 - - + -
350A ARG* 1.3 78.8 - - - +
352A LYS* 1.3 72.4 + - - +
353A GLN* 3.9 9.2 - - + +
368A GLU* 3.6 27.8 - - + -
369A LEU* 3.7 23.3 - - + -
372A ILE* 3.6 23.8 - - + -
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Residues in contact with LYS 352 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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48A TRP* 3.9 16.9 - - + -
51A GLY* 3.4 26.4 + - - +
52A SER* 3.4 29.2 - - - +
324A ILE* 3.2 21.1 - - + -
334A LEU* 4.5 8.1 - - + -
335A VAL* 2.7 41.5 + - - +
336A CYS* 5.0 0.7 - - - +
337A HIS 4.2 4.1 + - - +
338A ALA* 3.5 4.0 - - - -
339A SER* 3.1 47.0 + - - +
341A TRP* 4.7 12.3 - - - +
351A ILE* 1.3 71.7 - - - +
353A GLN* 1.3 62.0 + - - +
354A CYS* 5.8 1.8 - - - -
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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
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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