Contacts of the helix formed by residues 1165 - 1169 (chain E) in PDB entry 3DLS
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 THR1165 (chain E).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1127E ARG 4.8 0.2 + - - -
1128E ASP* 3.0 15.3 + - - -
1130E LYS* 2.8 30.9 + - + +
1162E PHE* 3.2 10.9 - - - -
1164E GLY* 1.3 72.1 - - - -
1166E ILE* 1.3 58.8 + - - +
1167E GLU* 3.2 22.7 - - + +
1168E TYR* 2.9 52.1 + - + +
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Residues in contact with ILE1166 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1162E PHE* 3.8 26.3 - - + -
1164E GLY 3.9 0.4 + - - -
1165E THR* 1.3 73.9 - - - +
1167E GLU* 1.3 73.3 + - - +
1168E TYR 3.2 1.3 + - - -
1169E CYS* 3.4 17.1 + - + +
1174E LEU* 3.5 29.2 - - + +
1206E LEU* 3.5 38.6 - - + +
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Residues in contact with GLU1167 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1165E THR* 3.2 18.2 + - - +
1166E ILE* 1.3 90.4 + - + +
1168E TYR* 1.3 68.7 + - + +
1169E CYS 3.4 2.9 - - - +
1187E TRP* 5.2 0.7 + - - -
1191E VAL* 3.9 9.4 - - - +
1201E ASN* 3.7 36.8 + - - +
1203E PHE* 6.0 1.7 - - - +
1206E LEU* 4.4 11.7 - - + +
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Residues in contact with TYR1168 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1128E ASP* 6.0 0.2 - - - +
1129E ILE 3.5 16.2 - - - +
1130E LYS* 3.4 24.1 - - + +
1131E ASP* 3.5 29.2 + - - -
1162E PHE* 5.1 1.7 - - + -
1165E THR* 2.9 35.0 + - + +
1167E GLU* 1.3 87.3 - - + +
1169E CYS* 1.3 58.3 + - - +
1170E ALA 3.9 0.2 + - - -
1184E LEU* 4.6 4.2 - - - +
1187E TRP* 3.5 16.4 - - - -
1188E SER* 3.7 22.5 - - - -
1191E VAL* 3.5 32.5 - - + -
1192E THR* 3.5 23.9 - - - -
1195E THR* 4.2 11.4 + - - +
1201E ASN* 4.7 3.1 + - - -
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Residues in contact with CYS1169 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1162E PHE* 3.6 32.5 - - + -
1165E THR 3.5 0.4 + - - -
1166E ILE* 3.4 17.9 + - - +
1167E GLU 3.4 1.7 - - - +
1168E TYR* 1.3 77.2 - - - +
1170E ALA* 1.3 73.2 + - - +
1171E PRO 3.9 0.3 - - - -
1173E VAL* 3.6 31.9 - - - -
1174E LEU* 3.9 30.6 - - + +
1184E LEU* 4.1 4.7 - - - -
1187E TRP* 3.3 10.6 + - - -
1209E THR* 4.4 3.3 + - - -
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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