Contacts of the strand formed by residues 698 - 701 (chain A) in PDB entry 1XR2
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 ILE 698 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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404A PHE* 3.5 42.2 + - + -
405A PRO* 3.6 5.5 - - - +
651A ILE* 5.5 0.2 - - + -
664A ILE* 3.7 13.0 - - + +
666A VAL* 4.0 24.7 - - + -
686A VAL* 4.7 2.7 - - + -
689A VAL* 4.0 24.2 - - + +
690A LEU* 4.9 6.7 - - + -
693A LEU* 4.9 12.8 - - + +
694A PRO 4.2 11.9 - - - +
695A LYS* 3.5 11.3 + - - +
696A GLU 3.4 3.3 - - - +
697A LEU* 1.3 84.5 - - + +
699A TRP* 1.3 74.7 + - - +
700A ILE* 4.1 9.6 - - + -
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Residues in contact with TRP 699 (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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401A LEU* 3.7 22.7 - - + -
405A PRO* 3.5 29.9 - - + +
407A THR* 4.0 20.2 - - + -
457A VAL* 3.5 30.1 - - + -
573A ILE* 4.9 1.3 - - + -
614A GLN* 3.4 30.1 - - - -
616A HIS* 3.6 22.4 - + - -
638A VAL* 4.3 6.0 - - + +
663A GLN* 2.6 37.7 + - + +
664A ILE 3.0 8.2 + - - -
665A GLY* 3.7 16.2 - - - -
666A VAL* 3.1 19.8 + - - +
696A GLU 5.6 0.4 - - - -
697A LEU 3.8 11.4 - - - -
698A ILE* 1.3 87.0 - - - +
700A ILE* 1.3 65.8 + - - +
701A ASN* 4.2 2.9 - - - +
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Residues in contact with ILE 700 (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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404A PHE* 4.4 20.9 - - + +
405A PRO 2.8 14.8 + - - +
406A THR* 3.2 12.3 - - + -
407A THR* 3.1 21.8 + - - +
666A VAL* 4.0 2.2 - - + +
668A VAL* 4.0 15.3 - - + -
686A VAL* 3.4 35.7 - - + -
698A ILE* 4.1 10.5 - - + -
699A TRP* 1.3 83.7 - - - +
701A ASN* 1.3 69.2 + - - +
721A MET* 3.4 34.0 - - + +
724A LEU* 4.6 13.0 - - + -
725A ALA* 4.9 2.9 - - + -
728A MET* 5.9 0.4 - - + -
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Residues in contact with ASN 701 (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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407A THR* 3.1 28.7 - - + +
408A THR* 4.6 1.3 - - - +
409A ILE* 3.8 13.6 - - + +
640A SER* 4.3 7.0 - - - -
641A ILE 4.5 1.4 + - - -
665A GLY* 3.1 41.4 + - - -
666A VAL 3.3 3.2 + - - -
667A GLY* 2.9 7.2 - - - +
668A VAL* 2.8 27.4 + - - +
699A TRP* 4.1 3.3 - - - +
700A ILE* 1.3 79.0 - - - +
702A PRO* 1.3 91.3 + - + +
703A ASP 4.7 0.4 + - - -
721A MET* 3.4 11.4 - - - -
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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