Contacts of the helix formed by residues 975 - 979 (chain A) in PDB entry 5Y36
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 VAL 975 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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912A ASP* 3.4 42.0 - - + +
915A GLY* 5.9 0.7 - - - -
916A PHE* 6.2 0.4 - - + -
919A ARG* 4.0 3.8 - - - +
973A TYR 3.7 3.0 + - - -
974A LYS* 1.3 73.8 - - - +
976A ARG* 1.4 64.0 + - - +
977A GLU* 3.8 25.1 - - + +
978A ILE* 2.9 34.5 + - + +
979A ASN* 3.6 3.9 + - - +
1237A TYR* 4.1 25.6 - - + -
33D C 3.9 12.8 - - - +
35D T 4.5 4.3 - - - +
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Residues in contact with ARG 976 (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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14A ASN* 3.2 24.9 + - - +
15A SER* 4.1 12.9 - - - -
52A LEU* 4.4 17.5 - - - +
974A LYS 3.4 5.4 + - - -
975A VAL* 1.4 70.9 - - - +
977A GLU* 1.3 57.1 + - - +
978A ILE 3.2 0.2 - - - -
979A ASN 3.0 35.3 + - - +
980A ASN* 3.0 38.4 + - - +
982A HIS* 3.9 22.9 - - + -
983A HIS* 4.4 3.4 + - - -
1317A ASN* 5.0 5.7 - - - +
35D T 3.6 65.6 + - + +
36D G 3.0 25.4 + - - -
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Residues in contact with GLU 977 (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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909A SER* 4.0 13.0 - - - +
910A GLU* 3.1 12.6 - - - -
911A LEU 3.0 8.5 + - - -
912A ASP* 2.6 39.7 + - - +
913A LYS* 4.9 0.9 + - - -
975A VAL* 2.9 18.1 + - + +
976A ARG* 1.3 76.5 - - - +
978A ILE* 1.4 56.9 + - + +
979A ASN 3.6 0.2 - - - -
980A ASN* 5.4 1.2 + - - -
1310A ILE* 3.2 54.2 - - + +
1313A PHE* 3.7 5.2 - - - +
35D T 3.5 17.7 - - + +
36D G 4.6 4.5 - - - +
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Residues in contact with ILE 978 (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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973A TYR* 4.4 11.0 - - + +
975A VAL* 2.9 29.8 + - + +
977A GLU* 1.4 78.6 - - + +
979A ASN* 1.4 62.4 + - + +
1233A VAL* 3.9 37.4 - - + +
1236A LEU* 6.4 1.1 - - + -
1237A TYR* 4.8 18.8 - - + +
1309A ILE* 5.8 0.7 - - + -
1310A ILE* 3.8 23.1 - - + -
1313A PHE* 3.3 51.2 - - + -
1316A THR* 5.2 2.1 - - - +
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Residues in contact with ASN 979 (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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973A TYR 5.5 4.7 + - - +
974A LYS* 3.6 31.6 - - + +
975A VAL 4.3 7.2 - - - +
976A ARG* 3.0 28.3 + - - +
977A GLU 3.6 0.2 - - - -
978A ILE* 1.4 83.5 - - + +
980A ASN* 1.4 59.4 + - - +
981A TYR* 2.8 37.0 + - - +
982A HIS* 3.6 7.3 + - + +
985A HIS* 5.0 4.8 + - - -
1087A LEU* 5.7 2.8 - - - +
1233A VAL* 6.0 5.3 - - + +
1313A PHE* 4.8 0.8 - - - +
1316A THR* 4.7 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