Contacts of the helix formed by residues 1016 - 1026 (chain A) in PDB entry 2R92
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 THR1016 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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942A PHE* 4.1 21.1 - - + -
1012A ARG 2.5 26.1 + - - -
1013A ASP* 2.9 18.3 + - - -
1015A VAL* 1.3 72.3 - - - +
1017A LEU* 1.3 67.6 + - - +
1019A CYS* 3.1 19.1 + - - +
1020A CYS* 3.3 17.5 + - - -
1023A ARG* 4.7 5.2 + - - +
206E GLY* 4.0 17.5 - - - -
207E ARG* 4.6 13.5 + - + +
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Residues in contact with LEU1017 (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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883A LEU* 3.6 30.7 - - + -
942A PHE* 5.5 1.3 - - + -
943A LEU* 4.6 11.2 - - + -
946A VAL* 5.8 0.9 - - + -
947A PHE* 4.1 14.4 - - + -
954A TRP* 5.8 1.1 - - + -
956A LEU* 4.1 17.7 - - + -
1015A VAL 2.6 4.6 + - - -
1016A THR* 1.3 77.8 - - - +
1018A PHE* 1.3 66.8 + - - +
1020A CYS* 3.0 20.1 + - - +
1021A LEU* 3.4 3.1 + - - +
202E SER 3.8 9.4 - - - +
203E GLU 4.0 9.6 - - - +
204E THR 3.4 28.5 - - - +
205E SER* 3.4 9.6 - - - +
206E GLY* 2.9 20.5 - - - +
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Residues in contact with PHE1018 (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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873A MET* 6.4 0.9 - - + -
956A LEU* 4.7 11.3 - - + +
957A PRO* 3.2 31.9 - - + -
958A VAL* 3.8 28.7 - - + -
960A ILE* 4.5 9.2 - - + -
997A LEU* 3.3 35.9 - - + -
1014A ALA 5.5 0.7 - - - +
1015A VAL* 2.6 22.4 + - + +
1017A LEU* 1.3 73.3 - - - +
1019A CYS* 1.3 52.3 + - - +
1021A LEU* 2.8 46.8 + - + +
1022A LEU* 2.8 18.5 + - + -
1049A ILE* 4.3 11.2 - - + -
1053A PHE* 3.4 27.6 - + + -
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Residues in contact with CYS1019 (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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994A GLN* 4.3 28.3 - - - +
997A LEU* 4.9 3.8 - - - -
1015A VAL* 3.0 35.7 - - - -
1016A THR* 3.1 12.2 + - - +
1018A PHE* 1.3 78.5 - - - +
1020A CYS* 1.3 51.2 + - - +
1022A LEU* 2.6 13.5 + - - +
1023A ARG* 2.5 61.9 + - - +
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Residues in contact with CYS1020 (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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883A LEU* 4.7 1.6 - - + -
885A THR* 4.6 2.9 + - - +
939A ASP* 3.4 31.9 - - + +
942A PHE* 4.8 8.3 - - - -
943A LEU* 3.7 37.5 - - + -
1016A THR* 3.3 20.9 - - - -
1017A LEU* 3.0 14.3 + - + +
1019A CYS* 1.3 74.3 - - - +
1021A LEU* 1.3 54.4 + - - +
1023A ARG* 3.3 5.2 + - - +
1024A SER* 2.7 37.1 + - - -
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Residues in contact with LEU1021 (chain A).
Click here for Legend to table.
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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881A GLN* 3.6 35.7 - - + +
882A SER 3.6 13.2 - - - +
883A LEU* 3.3 22.5 - - + +
956A LEU* 3.8 20.9 - - + -
960A ILE* 4.3 9.2 - - + -
1017A LEU 3.4 1.5 + - - +
1018A PHE* 2.8 25.6 + - + +
1020A CYS* 1.3 79.7 - - - +
1022A LEU* 1.3 61.2 + - - +
1024A SER* 3.1 17.6 - - - -
1025A ARG* 3.1 52.5 + - + +
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Residues in contact with LEU1022 (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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960A ILE* 4.0 11.9 - - + -
990A VAL* 4.8 4.9 - - + +
993A LEU* 3.8 20.9 - - + -
994A GLN* 3.8 28.9 - - + +
997A LEU* 4.0 18.2 - - + -
1018A PHE* 2.8 11.7 + - + +
1019A CYS* 2.6 26.1 + - - +
1021A LEU* 1.3 72.1 - - - +
1023A ARG* 1.3 61.4 + - + +
1025A ARG* 3.1 3.8 + - - +
1026A LEU* 3.1 53.0 + - + +
1049A ILE* 3.9 25.6 - - + -
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Residues in contact with ARG1023 (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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935A GLN* 2.8 36.7 - - - +
936A LEU* 3.7 22.8 - - + +
939A ASP* 2.5 43.1 + - - +
990A VAL* 5.2 9.9 - - + -
994A GLN* 3.3 31.6 + - - +
1016A THR* 4.7 7.5 + - - +
1019A CYS* 2.5 38.7 + - - +
1020A CYS* 3.9 8.2 - - - +
1022A LEU* 1.3 72.4 - - - +
1024A SER* 1.3 62.7 + - - +
1025A ARG 3.2 0.7 + - - -
1026A LEU* 3.3 13.4 + - - +
1027A ALA* 3.4 17.2 + - - +
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Residues in contact with SER1024 (chain A).
Click here for Legend to table.
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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883A LEU* 4.7 1.5 - - - -
884A ASP* 3.5 35.3 + - - +
885A THR* 3.6 21.8 + - - -
897A TYR* 3.3 11.9 + - - -
936A LEU* 5.5 0.7 - - - -
1020A CYS 2.7 23.6 + - - -
1021A LEU* 3.1 15.9 - - - -
1023A ARG* 1.3 75.1 - - - +
1025A ARG* 1.3 57.0 + - - -
1027A ALA* 4.4 0.2 - - - +
1030A ARG* 3.2 24.4 + - - -
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Residues in contact with ARG1025 (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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881A GLN* 4.5 6.3 + - - +
882A SER* 2.9 38.0 + - - +
884A ASP* 2.8 19.6 + - - -
960A ILE* 3.8 30.4 - - + +
961A ARG* 3.6 34.5 - - - +
964A ILE* 4.6 1.0 - - + +
1021A LEU* 3.1 31.6 + - + +
1022A LEU 3.1 4.9 + - - +
1024A SER* 1.3 78.9 + - - +
1026A LEU* 1.3 70.6 + - + +
1027A ALA 3.4 4.6 + - - -
1030A ARG* 3.3 21.3 - - - +
1035A TYR* 2.6 31.8 + - + +
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Residues in contact with LEU1026 (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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932A GLU* 4.7 2.4 - - - +
960A ILE* 5.8 1.6 - - + -
964A ILE* 5.0 10.5 - - + -
986A ILE* 4.2 4.2 - - - +
990A VAL* 3.6 37.6 - - + +
993A LEU* 4.3 2.0 - - + -
1022A LEU* 3.1 41.1 + - + +
1023A ARG* 3.3 5.7 + - - -
1025A ARG* 1.3 93.0 - - + +
1027A ALA* 1.3 62.3 + - - +
1028A THR 3.6 1.7 + - - -
1031A VAL* 3.4 12.2 - - + +
1035A TYR* 5.1 1.6 - - + -
1037A LEU* 6.2 2.0 - - + -
1042A PHE* 4.4 15.3 - - + -
1045A VAL* 5.0 10.8 - - + -
1046A LEU* 4.1 24.7 - - + -
1049A ILE* 4.6 6.5 - - + -
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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