Contacts of the helix formed by residues 1263 - 1266 (chain B) in PDB entry 1VDV
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 PRO1263 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1178B ILE* 6.4 0.2 - - + -
1180B MET* 3.8 29.2 - - + -
1195B VAL* 3.8 39.5 - - + +
1198B ALA* 3.9 7.9 - - + -
1199B PHE* 4.1 8.1 - - + +
1259B VAL* 2.9 32.3 - - + +
1260B GLY 4.0 3.1 - - - +
1261B GLU 3.3 4.5 - - - -
1262B PRO* 1.3 87.1 - - + +
1264B LEU* 1.3 63.7 + - - +
1265B PHE 3.4 0.4 - - - -
1266B LEU* 3.1 23.8 + - + +
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Residues in contact with LEU1264 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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839B ARG* 3.8 11.2 - - - +
911B PHE* 5.1 0.2 - - + -
912B ARG* 3.3 45.1 - - + +
917B PRO* 3.8 28.0 - - + -
1198B ALA* 3.5 29.4 - - + +
1199B PHE* 4.5 0.3 - - - -
1201B GLN* 4.0 13.9 - - + +
1202B GLY* 3.5 23.2 - - - +
1205B LEU* 4.4 6.7 - - + -
1206B PHE* 4.6 1.1 - - + -
1261B GLU 3.1 15.7 + - - +
1263B PRO* 1.3 76.9 - - - +
1265B PHE* 1.3 68.6 + - - +
1267B GLY* 3.0 11.6 + - - -
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Residues in contact with PHE1265 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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887B ASN* 4.3 3.1 - - - -
917B PRO* 3.8 16.3 - - + +
920B LEU* 3.3 48.7 - - + -
921B PHE* 3.3 27.4 - - + -
924B GLU* 3.6 24.0 - - + -
1001B ILE* 3.9 15.5 - - + -
1002B PRO 4.2 3.8 - - - -
1003B THR* 3.6 24.9 - - - +
1206B PHE* 3.8 10.0 - + - -
1261B GLU 4.6 1.0 + - - -
1262B PRO 4.1 4.9 + - - +
1263B PRO 3.4 1.0 - - - -
1264B LEU* 1.3 84.6 - - - +
1266B LEU* 1.3 56.5 + - - +
1267B GLY 2.9 0.2 - - - -
1268B ALA* 2.8 47.5 + - + +
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Residues in contact with LEU1266 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1001B ILE* 3.7 27.8 - - + +
1002B PRO 4.2 2.0 - - - +
1003B THR* 3.6 30.7 - - + -
1156B GLY* 3.8 6.3 - - - +
1157B VAL 4.0 9.4 - - - +
1158B ALA* 3.7 14.0 - - + +
1178B ILE* 3.9 21.3 - - + -
1180B MET* 3.8 30.1 - - - -
1199B PHE* 3.1 11.6 - - + -
1263B PRO* 3.1 16.1 + - + +
1265B PHE* 1.3 77.4 - - - +
1267B GLY* 1.3 57.1 + - - +
1268B ALA 3.0 2.3 + - - -
1269B SER* 2.9 28.7 + - - +
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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