Contacts of the helix formed by residues 1083 - 1087 (chain A) in PDB entry 6SA5
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 GLY1083 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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1055A ILE* 3.6 8.7 - - - +
1081A ASN 4.4 0.4 + - - -
1082A CYS* 1.3 85.0 - - - +
1084A HIS* 1.3 60.3 + - - -
1085A SER* 3.2 6.7 - - - -
1086A GLU* 3.1 22.3 + - - +
1087A ASP* 4.4 0.3 - - - +
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Residues in contact with HIS1084 (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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1016A THR* 3.4 18.8 - - + -
1046A ALA* 4.1 0.9 - - - +
1050A GLN* 3.5 29.8 - - - +
1051A GLY* 3.2 30.2 + - - +
1052A SER* 4.0 3.5 - - - -
1053A GLY 2.7 34.7 + - - -
1054A PRO 4.0 3.1 - - - -
1055A ILE* 3.5 14.0 - - + +
1083A GLY* 1.3 67.0 - - - -
1085A SER* 1.3 61.2 + - - +
1086A GLU 3.0 7.1 + - - -
1087A ASP* 2.7 43.1 + - - +
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Residues in contact with SER1085 (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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1045A ASN* 3.1 39.1 - - - +
1046A ALA* 3.9 2.0 - - - +
1050A GLN* 3.5 20.6 - - - +
1083A GLY* 3.2 4.0 + - - -
1084A HIS* 1.3 76.1 - - - +
1086A GLU* 1.3 77.4 + - - +
1087A ASP 3.4 0.2 - - - -
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Residues in contact with GLU1086 (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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1017A VAL 4.5 0.2 - - - -
1018A CYS* 3.9 1.1 - - - -
1019A ASP* 2.5 63.6 + - - +
1020A ASP* 4.4 7.0 - - - +
1045A ASN* 4.4 7.6 - - - +
1082A CYS* 3.5 31.6 - - - -
1083A GLY 3.1 4.0 + - - +
1084A HIS 3.0 1.8 - - - -
1085A SER* 1.3 101.6 + - - +
1087A ASP* 1.3 65.7 + - - +
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Residues in contact with ASP1087 (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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1005A ARG* 4.1 17.2 - - - +
1016A THR* 2.8 29.4 + - - +
1017A VAL 3.6 6.1 - - - +
1018A CYS* 5.3 0.5 - - - -
1044A GLY 4.2 1.0 - - - -
1045A ASN 4.0 2.3 + - - -
1046A ALA* 3.1 25.3 + - - +
1047A ARG 4.4 0.9 + - - -
1049A GLY 4.3 6.1 - - - +
1051A GLY 2.9 20.3 + - - -
1055A ILE* 4.3 6.6 - - - +
1083A GLY 4.4 0.7 - - - +
1084A HIS* 2.7 46.1 + - - +
1085A SER 3.4 1.4 - - - -
1086A GLU* 1.3 75.9 - - - +
1088A ALA* 1.3 60.6 + - - +
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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