Contacts of the strand formed by residues 266 - 270 (chain A) in PDB entry 1DGD
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 266 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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102A LEU* 4.2 2.0 - - - +
230A LYS* 3.9 19.1 + - - -
238A MET 4.3 2.6 - - - +
239A LEU* 3.5 25.5 - - + +
240A LEU* 2.8 38.9 + - - +
265A PRO* 1.3 74.6 - - - +
267A ILE* 1.3 56.4 + - + +
285A THR* 2.6 32.2 + - - -
286A SER* 4.1 4.2 + - - -
289A ILE* 3.9 22.4 - - + +
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Residues in contact with ILE 267 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
102A LEU* 4.8 0.4 - - - -
118A ALA* 3.6 43.1 - - + +
121A MET* 4.4 13.2 - - + -
122A ALA* 4.4 0.9 - - + -
239A LEU* 4.2 21.1 - - + -
240A LEU 3.4 2.0 + - - -
241A ILE* 3.4 21.2 - - + -
242A LEU 3.0 23.4 + - - -
265A PRO* 3.4 6.9 - - - +
266A ASP* 1.3 86.5 - - + +
268A LEU* 1.3 71.9 + - - +
269A THR* 4.2 2.2 - - + -
283A ILE* 4.2 13.2 - - + -
284A VAL 3.6 9.2 - - - +
285A THR* 3.6 13.0 - - - +
289A ILE* 5.0 1.8 - - + -
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Residues in contact with LEU 268 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
98A THR* 4.0 26.7 - - + -
99A PRO* 6.0 0.2 - - + -
102A LEU* 4.1 12.6 - - + -
242A LEU* 3.6 16.8 - - + +
244A GLU* 3.7 37.0 - - + +
256A PHE* 4.3 17.5 - - + -
258A CYS* 4.6 6.1 - - - -
265A PRO* 4.0 12.8 - - + -
267A ILE* 1.3 74.3 - - - +
269A THR* 1.3 68.8 + - - +
270A LEU* 4.3 9.9 - - + -
282A ALA 4.0 0.2 - - - +
283A ILE* 3.3 4.0 - - - +
284A VAL* 2.9 43.7 + - + +
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Residues in contact with THR 269 (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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114A SER* 3.7 17.3 + - - +
115A ASN* 3.1 24.4 + - - +
118A ALA* 3.8 26.5 - - + -
241A ILE* 4.1 11.2 - - + -
242A LEU 2.9 7.3 + - - +
243A ASP* 3.4 18.1 + - - -
244A GLU* 3.0 26.0 + - - +
245A ALA 5.0 0.4 - - - -
267A ILE* 4.2 1.3 - - + -
268A LEU* 1.3 80.8 - - - +
270A LEU* 1.3 65.0 + - - +
282A ALA 3.4 5.2 - - - -
283A ILE* 4.0 9.0 - - + -
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Residues in contact with LEU 270 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
94A LEU* 3.7 33.7 - - + -
98A THR* 5.6 0.2 - - + -
114A SER* 4.0 3.7 + - - -
244A GLU* 4.2 20.4 - - + +
245A ALA* 4.7 0.4 - - - -
248A GLY* 4.3 4.9 - - - -
249A VAL* 4.9 5.2 - - + -
256A PHE* 3.4 35.9 - - + -
268A LEU* 4.3 8.7 - - + -
269A THR* 1.3 82.2 - - - +
271A SER* 1.3 68.4 + - - +
273A THR* 5.8 0.9 - - - +
274A LEU* 4.4 20.4 - - + -
281A ALA* 3.2 2.2 - - - +
282A ALA* 2.9 31.3 + - + +
284A VAL* 4.4 15.7 - - + -
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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