Contacts of the strand formed by residues 231 - 234 (chain T) in PDB entry 5IYB
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 ASN 231 (chain T).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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198T ASN* 3.3 21.7 - - - +
199T LEU* 4.1 9.4 + - + +
223T GLN* 2.8 34.7 + - - +
224T ASN 3.2 25.2 + - - -
225T VAL* 3.9 11.7 + - + -
229T HIS 3.5 2.9 + - - +
230T LYS* 1.3 75.2 - - - +
232T THR* 1.3 71.5 + - - +
233T TRP* 3.6 24.4 + - - +
68Y C 4.4 22.7 + - - +
69Y C 4.2 10.0 + - - +
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Residues in contact with THR 232 (chain T).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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196T TYR* 4.6 11.5 - - + +
197T TYR 3.5 13.5 - - - +
198T ASN* 4.7 9.6 - - + +
223T GLN* 3.4 0.7 - - - -
224T ASN* 2.5 56.0 + - - +
226T LYS* 3.4 29.2 + - - -
228T ILE* 4.0 27.1 - - + -
230T LYS* 4.1 1.3 - - + +
231T ASN* 1.3 84.5 + - - +
233T TRP* 1.3 64.2 + - - +
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Residues in contact with TRP 233 (chain T).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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191T PHE* 3.7 6.5 - - + -
196T TYR* 3.7 3.4 - - - -
197T TYR* 2.9 31.7 + - + +
198T ASN 5.1 0.2 - - - -
199T LEU* 3.8 44.7 - - + +
202T LEU* 4.7 7.9 - - + -
214T LYS* 5.1 15.0 - - + -
217T LEU* 3.5 62.4 - - + -
218T LYS* 5.4 1.1 - - - -
222T VAL* 2.9 30.7 - - - -
223T GLN* 3.7 25.4 - - + -
231T ASN* 3.6 26.6 - - - +
232T THR* 1.3 82.9 - - - +
234T GLU* 1.3 69.9 + - - +
69Y C 4.6 9.4 - - - -
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Residues in contact with GLU 234 (chain T).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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191T PHE* 4.0 7.9 - - - -
195T GLN* 3.1 29.8 - - - +
196T TYR* 4.3 8.5 - - + -
217T LEU* 5.0 0.7 - - - +
221T GLY* 3.4 2.4 - - - -
222T VAL* 3.0 45.2 + - + +
224T ASN* 6.4 1.8 - - + -
226T LYS* 6.2 0.9 - - - +
233T TRP* 1.3 79.4 - - - +
235T LEU* 1.3 59.7 + - - +
236T LYS* 3.2 43.4 - - + +
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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