Contacts of the helix formed by residues 262 - 270 (chain B) in PDB entry 4Y2H
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 GLY 262 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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260B ARG 3.4 1.0 + - - -
261B ALA* 1.3 71.5 - - - +
263B LEU* 1.3 60.9 + - - +
264B GLU* 3.1 11.0 - - - -
265B GLN* 3.0 36.4 + - - +
266B GLU* 3.9 6.2 + - - +
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Residues in contact with LEU 263 (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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167B LEU* 4.7 5.6 - - + -
171B LEU* 4.0 23.6 - - + -
256B LEU* 3.8 26.0 - - + -
257B GLU 3.6 21.5 - - - +
258B LEU* 4.0 22.2 - - + +
260B ARG* 3.3 23.2 + - + +
261B ALA 3.2 2.4 + - - -
262B GLY* 1.3 72.3 - - - +
264B GLU* 1.3 65.9 + - - +
265B GLN 3.1 2.0 + - - -
266B GLU* 3.2 43.5 + - + +
267B LEU* 3.3 19.1 + - + +
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Residues in contact with GLU 264 (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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168B SER* 3.7 25.2 + - - +
171B LEU* 3.7 36.2 - - + +
172B HIS* 3.9 13.7 + - - +
175B THR* 3.7 19.8 + - - +
262B GLY* 3.1 4.2 - - - -
263B LEU* 1.3 80.8 - - - +
265B GLN* 1.3 73.5 + - - +
267B LEU* 3.7 17.1 + - - +
268B GLU* 3.7 8.1 + - - +
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Residues in contact with GLN 265 (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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262B GLY* 3.0 32.3 - - - +
263B LEU 3.1 0.8 - - - -
264B GLU* 1.3 87.3 - - - +
266B GLU* 1.3 67.5 + - + +
267B LEU 3.0 2.7 + - - -
268B GLU* 3.2 16.7 + - - +
269B ALA* 3.2 13.7 + - - +
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Residues in contact with GLU 266 (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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256B LEU* 5.1 1.5 - - + +
260B ARG* 2.9 47.6 + - - +
261B ALA 4.2 4.5 - - - +
262B GLY 4.3 3.6 - - - +
263B LEU* 3.2 31.3 + - + +
265B GLN* 1.3 77.3 - - + +
267B LEU* 1.3 57.0 + - - +
269B ALA* 3.3 6.8 + - - +
270B GLY 3.0 37.7 + - - +
271B VAL* 4.9 4.3 - - + -
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Residues in contact with LEU 267 (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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162B LEU* 4.4 11.9 - - + -
167B LEU* 3.7 38.1 - - + -
168B SER* 3.8 23.1 - - - +
171B LEU* 3.9 18.6 - - + -
256B LEU* 4.7 4.0 - - + -
263B LEU* 3.3 17.9 + - + +
264B GLU* 3.7 9.2 - - - +
265B GLN 3.0 0.6 - - - -
266B GLU* 1.3 74.2 - - - +
268B GLU* 1.3 66.8 + - - +
270B GLY* 3.2 12.3 + - - -
271B VAL* 3.9 22.8 - - + +
343B LEU 4.6 1.2 - - - +
345B PRO* 4.2 6.3 - - - +
403B GOL 3.8 21.3 + - - +
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Residues in contact with GLU 268 (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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264B GLU 3.7 8.5 + - - +
265B GLN* 3.2 10.8 + - - +
267B LEU* 1.3 80.0 - - - +
269B ALA* 1.3 60.9 + - - +
270B GLY 3.5 0.3 + - - -
344B LEU* 4.3 4.9 - - - +
345B PRO* 4.0 25.3 - - + +
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Residues in contact with ALA 269 (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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265B GLN 3.2 10.2 + - - +
266B GLU* 3.9 8.7 - - - +
268B GLU* 1.3 79.0 - - - +
270B GLY* 1.3 59.4 + - - +
342B THR* 4.8 2.8 - - - +
344B LEU* 3.8 11.6 - - - +
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Residues in contact with GLY 270 (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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266B GLU* 3.0 18.8 + - - +
267B LEU 3.2 7.2 + - - -
268B GLU 3.3 1.2 + - - -
269B ALA* 1.3 81.7 - - - +
271B VAL* 1.3 61.2 + - - +
272B GLY 4.3 0.5 + - - -
342B THR* 3.8 14.1 - - - -
343B LEU 3.2 14.6 - - - -
344B LEU* 4.1 5.2 - - - -
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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