Contacts of the strand formed by residues 351 - 355 (chain D) in PDB entry 3SWD
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 THR 351 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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322D PHE* 3.9 27.6 - - + -
323D ILE 3.4 8.1 - - - +
324D THR* 2.8 28.0 + - - +
332D PHE* 4.7 2.2 - - - -
346D GLU 3.9 0.3 - - - +
347D ILE* 3.5 3.9 - - - +
348D GLU* 2.9 37.6 + - - +
349D SER 3.3 0.8 + - - -
350D ASN* 1.3 85.7 + - - +
352D VAL* 1.3 65.0 + - - +
353D ILE* 4.0 9.3 + - + +
348G GLU* 4.1 16.5 + - + +
349G SER* 6.2 0.2 - - - -
353G ILE* 5.8 1.6 - - + -
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Residues in contact with VAL 352 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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311D THR* 4.3 12.3 - - + +
321D GLY 3.9 0.3 - - - +
322D PHE* 3.4 4.9 - - - +
323D ILE* 2.9 47.4 + - + +
332D PHE* 4.0 22.8 - - + -
335D VAL* 4.1 19.7 - - + -
345D ALA* 4.1 13.0 - - + -
346D GLU 3.4 9.6 - - - +
347D ILE* 4.4 7.4 - - + +
351D THR* 1.3 73.9 - - - +
353D ILE* 1.3 64.6 + - - +
354D CYS* 3.8 19.8 + - - -
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Residues in contact with ILE 353 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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320D THR* 4.3 10.3 - - + -
321D GLY 3.9 2.9 - - - +
322D PHE* 4.5 7.0 - - + -
345D ALA* 3.3 6.4 - - - -
346D GLU* 2.7 44.6 + - + +
348D GLU* 4.2 27.1 - - + -
351D THR* 4.3 13.9 - - + +
352D VAL* 1.3 75.2 - - - +
354D CYS* 1.3 61.3 + - - +
355D HIS* 3.8 24.9 + - + +
322G PHE* 4.3 29.2 - - + -
351G THR* 5.2 3.6 - - + -
353G ILE* 5.1 18.2 - - + -
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Residues in contact with CYS 354 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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311D THR* 4.2 13.0 - - - -
314D ASN* 3.7 31.4 - - + -
315D LEU* 3.7 22.4 - - + -
319D GLY 4.0 0.2 - - - +
320D THR* 3.2 12.0 - - - +
321D GLY 2.8 42.2 + - - +
323D ILE* 5.2 1.1 - - - -
344D HIS 4.0 2.7 - - - -
352D VAL* 4.0 26.0 - - - -
353D ILE* 1.3 76.5 - - - +
355D HIS* 1.3 63.2 + - - +
356D GLY 3.9 0.7 - - - -
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Residues in contact with HIS 355 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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314D ASN 4.6 0.4 - - - -
315D LEU* 4.3 3.5 - - - +
319D GLY 4.0 3.1 - - - -
320D THR* 3.1 36.3 + - + +
344D HIS* 3.0 48.4 + - + +
346D GLU* 2.5 34.7 + - - -
353D ILE* 3.8 12.1 - - + +
354D CYS* 1.3 72.2 - - - +
356D GLY* 1.3 66.9 + - - +
357D VAL* 3.6 4.7 + - - +
293G ASN* 5.9 1.2 + - - -
320G THR* 5.4 12.1 - - + -
322G PHE* 6.0 2.5 - + - -
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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