Contacts of the strand formed by residues 255 - 260 (chain B) in PDB entry 1D2Q
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 ARG 255 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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173B GLU* 3.0 32.5 + - + +
174B LEU 3.4 4.9 - - - +
175B VAL* 3.8 24.5 - - + -
212B LYS* 3.3 1.0 - - - -
213B TYR* 2.5 94.1 + - + +
214B THR 5.4 2.4 + - - -
253B ASN 3.7 11.7 - - - +
254B ASP* 1.3 76.3 - - - +
256B ILE* 1.3 61.3 + - - +
257B PHE* 5.1 0.2 - - - -
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Residues in contact with ILE 256 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
173B GLU* 3.3 4.3 - - - -
174B LEU* 2.8 55.0 + - + +
176B ILE* 4.2 10.1 - - + -
184B ILE* 4.0 24.5 - - + -
210B ILE* 5.5 2.9 - - + -
211B TYR 3.2 13.9 - - - +
212B LYS* 3.8 16.2 - - + -
222B LEU* 4.4 7.6 - - + -
250B LEU* 4.1 28.9 - - + -
254B ASP 5.3 0.7 - - - -
255B ARG* 1.3 79.0 - - - +
257B PHE* 1.3 60.6 + - - +
275B PHE* 3.7 14.8 - - + -
277B ALA* 4.5 8.3 - - + -
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Residues in contact with PHE 257 (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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146B ALA* 4.4 11.2 - - + -
150B LYS* 3.3 33.9 - - + -
172B GLY 4.1 6.7 - - - +
173B GLU* 3.5 31.4 - - + -
210B ILE* 3.5 3.3 - - - +
211B TYR* 2.8 74.9 + + + +
213B TYR* 3.3 35.7 - + - -
219B PRO* 4.4 4.5 - - + -
256B ILE* 1.3 76.8 - - - +
258B VAL* 1.3 70.1 + - - +
259B SER* 3.9 11.9 - - - -
275B PHE* 4.0 9.4 - - - -
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Residues in contact with VAL 258 (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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150B LYS* 4.0 0.2 - - - +
151B ILE* 3.0 47.3 + - + +
154B TRP* 4.4 11.1 - - + +
172B GLY 5.2 0.6 + - - -
186B SER* 3.4 25.8 - - - +
188B THR* 4.0 9.2 - - + -
208B GLN* 4.1 3.8 - - + -
209B TYR 3.4 13.2 - - - +
210B ILE* 4.4 3.1 - - + -
257B PHE* 1.3 81.3 - - - +
259B SER* 1.3 68.8 + - - +
275B PHE* 3.4 44.2 - - + -
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Residues in contact with SER 259 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
147B LEU 2.4 30.5 + - - -
148B GLY 3.3 8.1 - - - -
149B ARG 3.5 8.9 + - - -
150B LYS 4.0 0.3 + - - -
151B ILE 4.7 0.2 - - - +
209B TYR* 2.5 52.2 + - - +
211B TYR* 3.9 14.1 - - - -
257B PHE* 3.9 8.9 + - - -
258B VAL* 1.3 75.3 - - - +
260B VAL* 1.3 66.2 + - - +
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Residues in contact with VAL 260 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
148B GLY* 3.8 4.7 - - - -
149B ARG* 2.7 40.9 + - + +
151B ILE* 4.0 20.0 - - + -
188B THR* 3.8 33.2 - - + +
190B PHE* 4.1 10.1 - - + -
207B VAL 3.4 6.5 - - - +
208B GLN* 4.0 14.1 - - + -
209B TYR* 4.3 0.9 - - - -
258B VAL* 4.2 0.4 - - + -
259B SER* 1.3 81.4 + - - +
261B THR* 1.3 59.9 - - - +
262B ASN* 3.5 23.8 + - - +
266B ILE* 4.4 8.1 - - + -
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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