Contacts of the helix formed by residues 1216 - 1219 (chain C) in PDB entry 5Y3R
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 GLY1216 (chain C).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1173C LEU* 6.2 0.2 - - - -
1177C GLY* 3.0 16.4 + - - -
1213C LYS* 3.7 2.2 - - - +
1214C GLU 3.4 7.1 - - - +
1215C GLU* 1.3 78.8 - - - +
1217C VAL* 1.3 63.1 + - - +
1218C SER 3.3 1.8 - - - -
1219C PHE* 3.2 32.6 + - - -
1220C LEU* 3.1 23.8 - - - +
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Residues in contact with VAL1217 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1214C GLU* 3.1 37.3 + - + +
1215C GLU* 3.4 24.2 - - + +
1216C GLY* 1.3 75.3 - - - +
1218C SER* 1.3 59.4 + - - +
1220C LEU* 3.1 14.6 - - - +
1221C ILE* 5.9 0.7 - - + -
1271C ILE* 3.3 33.0 - - + +
1272C GLY* 3.7 3.4 - - - +
1274C ARG* 2.2 39.8 + - - +
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Residues in contact with SER1218 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1213C LYS* 3.2 23.2 + - - +
1214C GLU* 5.6 1.1 - - - -
1217C VAL* 1.3 78.0 - - - +
1219C PHE* 1.3 61.5 + - - +
1220C LEU 2.9 6.4 + - - +
1221C ILE* 3.8 21.5 + - - +
1222C ASN* 3.9 14.9 + - - +
1274C ARG* 4.2 3.4 - - - +
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Residues in contact with PHE1219 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1147C LYS* 4.3 1.8 - - - -
1151C ARG* 3.4 34.8 - - - -
1155C ARG* 5.1 8.9 + - - +
1177C GLY 4.3 1.1 - - - -
1179C PRO 4.2 7.6 - - - -
1180C GLN* 3.3 32.8 - - + -
1213C LYS* 3.1 46.3 - - + +
1216C GLY* 3.2 36.2 + - - +
1218C SER* 1.3 78.5 - - - +
1220C LEU* 1.3 69.6 + - + +
1222C ASN* 4.3 8.1 + - - +
1223C THR* 4.3 10.4 + - - -
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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
------------------------------------------------------------
Atomic class I II III IV V VI VII VIII
------------------------------------------------------------
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