Contacts of the strand formed by residues 1196 - 1200 (chain A) in PDB entry 2XT6
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 LYS1196 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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1164A LYS 3.2 8.7 + - - +
1165A PHE* 3.4 31.2 - - + -
1166A TRP 2.9 24.1 + - - -
1177A TRP* 3.7 7.8 - - - -
1194A GLY 3.3 6.4 + - - +
1195A LEU* 1.3 76.9 - - - +
1197A ARG* 1.3 61.0 + - - +
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Residues in contact with ARG1197 (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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1165A PHE* 4.9 0.7 - - - -
1166A TRP* 3.6 6.7 - - + +
1172A ALA* 3.5 21.9 - - - +
1177A TRP* 3.5 58.9 - - + +
1196A LYS* 1.3 77.9 - - - +
1198A ILE* 1.4 69.2 + - - +
1199A SER* 2.6 49.8 + - - +
1200A ARG 3.9 4.2 + - - -
1201A ARG* 5.3 1.6 - - - +
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Residues in contact with ILE1198 (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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1113A LEU* 4.7 0.4 - - + -
1165A PHE* 3.6 42.0 - - + -
1166A TRP 2.8 14.5 + - - +
1167A VAL* 3.3 11.5 - - + +
1168A GLN* 3.0 27.0 + - - +
1197A ARG* 1.4 76.0 - - - +
1199A SER* 1.3 62.1 + - - +
1221A ILE* 3.7 37.2 - - + +
1224A THR* 4.0 26.9 - - + +
1225A ALA* 3.7 26.5 - - - +
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Residues in contact with SER1199 (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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1168A GLN* 3.3 26.5 - - - -
1170A GLU 3.4 15.3 - - - -
1172A ALA* 3.5 8.3 - - - -
1197A ARG* 2.6 37.4 + - - +
1198A ILE* 1.3 76.9 - - - +
1200A ARG* 1.3 73.1 + - - +
1201A ARG 4.1 0.3 + - - -
1221A ILE* 4.2 13.3 - - - +
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Residues in contact with ARG1200 (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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1013A HIS* 3.9 20.6 + - - -
1169A GLU* 2.7 46.5 + - - +
1170A GLU 3.5 2.2 + - - -
1171A PRO* 3.8 12.3 - - + -
1172A ALA* 2.9 13.7 + - - +
1197A ARG* 3.9 1.3 + - - -
1199A SER* 1.3 91.6 + - - +
1201A ARG* 1.3 61.5 + - - +
1203A MET* 4.1 11.7 - - + -
1207A SER* 5.9 1.5 - - - +
1214A HIS* 2.9 41.7 + - - +
1217A GLU* 2.8 37.1 + - + +
1218A GLN* 2.8 37.0 + - - +
1221A ILE* 3.5 13.6 - - + +
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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