Contacts of the helix formed by residues 115 - 119 (chain A) in PDB entry 6DWM
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 115 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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111A THR 3.6 17.5 - - - +
112A PHE* 3.1 14.7 + - + +
114A LEU* 1.3 77.4 - - - +
116A SER* 1.3 72.9 + - - +
117A ASN 3.2 1.6 - - - -
118A GLY* 3.0 13.9 + - - -
119A GLN 3.7 2.1 + - - -
120A SER* 3.9 20.0 + - - +
123A PHE* 3.7 31.6 - - + -
224A PHE* 3.9 17.9 - - + -
228A VAL* 4.1 11.2 - - + -
251A PHE* 3.8 11.2 - - + -
255A ASN* 3.5 8.7 - - - +
602A HJJ 3.5 31.9 - - + -
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Residues in contact with SER 116 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
114A LEU 3.9 1.8 + - - -
115A ILE* 1.3 74.1 - - - +
117A ASN* 1.3 69.5 + - - +
119A GLN* 2.8 17.2 + - - +
120A SER* 3.9 18.6 - - - -
255A ASN* 4.1 6.9 + - - +
259A TYR* 3.4 28.3 + - - -
309A ASN* 4.2 9.1 + - - -
312A LEU* 3.6 9.2 - - - +
313A ASP* 3.5 9.8 + - - -
602A HJJ 3.3 24.7 + - - -
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Residues in contact with ASN 117 (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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113A THR 4.2 3.4 - - - -
114A LEU 4.5 4.1 + - - -
115A ILE 3.2 1.4 + - - -
116A SER* 1.3 77.1 - - - +
118A GLY* 1.3 60.7 + - - +
119A GLN* 3.1 19.4 + - - +
259A TYR* 3.9 14.9 - - + -
305A GLU* 3.1 27.5 + - - +
603A CPS 4.0 27.1 + - - +
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Residues in contact with GLY 118 (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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112A PHE 4.4 1.6 - - - -
113A THR* 3.3 31.9 + - - -
115A ILE 3.0 9.8 + - - -
117A ASN* 1.3 75.1 - - - +
119A GLN* 1.3 61.6 + - - +
120A SER 3.6 3.5 + - - -
124A SER* 4.2 12.5 - - - -
125A PRO* 5.4 2.3 - - - +
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Residues in contact with GLN 119 (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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116A SER 2.8 11.9 + - - +
117A ASN* 3.5 19.7 + - - +
118A GLY* 1.3 81.0 - - - +
120A SER* 1.3 55.7 + - - +
124A SER* 4.6 3.6 - - - -
134A ARG* 2.7 32.7 + - - +
303A SER* 4.0 4.9 + - - -
305A GLU* 3.0 37.9 + - - +
306A LYS* 3.4 38.1 - - + +
309A ASN* 2.9 14.0 + - - +
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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