Contacts of the strand formed by residues 318 - 321 (chain D) in PDB entry 3DLX
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 318 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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40C THR* 5.2 6.2 + - - -
218C ALA 5.4 0.2 + - - -
263C GLN* 3.1 30.8 + - + +
264C ILE* 3.6 55.9 - - + -
316D GLY 3.7 15.7 - - - -
317D MET* 1.3 71.1 - - - +
319D ALA* 1.3 59.6 + - - +
340D HIS* 3.2 43.1 + + + +
342D GLN* 6.1 0.4 - - + -
348D LEU* 3.8 17.7 - - + -
393D HIS 4.1 9.0 - - - +
394D VAL* 4.0 4.7 - - + -
395D ASP* 2.8 45.9 + - - +
396D LEU 3.2 5.7 + - - -
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Residues in contact with ALA 319 (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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313D PHE* 3.7 32.8 - - + -
317D MET* 4.4 3.6 - - - -
318D TYR* 1.3 75.2 - - - +
320D ASN* 1.3 57.4 + - - +
321D LEU* 5.1 0.2 - - + -
339D VAL* 4.4 2.2 - - + -
340D HIS 2.8 9.3 + - - -
341D LEU* 3.3 14.2 - - + +
342D GLN* 2.8 32.8 + - - +
394D VAL* 4.0 2.7 - - - -
396D LEU* 3.1 22.2 - - + +
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Residues in contact with ASN 320 (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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319D ALA* 1.3 73.4 - - - +
321D LEU* 1.3 79.7 + - - +
322D GLY 3.9 0.3 + - - -
342D GLN* 3.1 36.4 + - - +
343D SER* 4.3 0.4 - - - +
344D GLU* 3.7 19.3 + - - +
394D VAL* 3.8 8.4 - - + +
396D LEU 2.9 8.9 + - - +
397D THR* 3.4 3.1 + - - +
398D MET* 2.9 26.2 + - - +
429D LEU* 3.2 48.1 - - + +
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Residues in contact with LEU 321 (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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313D PHE* 3.7 28.9 - - + -
319D ALA* 5.1 0.9 - - + -
320D ASN* 1.3 92.1 + - - +
322D GLY* 1.3 61.3 + - - +
323D ILE 4.2 0.2 + - - -
326D PRO 3.7 27.8 - - - +
327D LEU* 4.3 20.3 - - + +
330D SER* 3.6 32.5 - - - +
341D LEU* 4.1 20.6 - - + -
342D GLN 4.0 5.8 + - - +
343D SER* 6.1 0.2 - - - -
344D GLU* 5.2 0.5 - - - +
350D LEU* 6.1 6.1 - - + -
366D ALA* 4.7 9.5 - - - +
398D MET* 3.9 16.6 - - + -
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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