Contacts of the helix formed by residues 189 - 195 (chain B) in PDB entry 3V4P
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 189 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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121A ILE* 4.1 33.4 - - + +
124A GLU 3.9 18.4 - - - +
125A ASN* 4.3 2.9 - - - -
126A LYS* 4.3 20.4 - - + +
187B SER* 3.3 15.6 - - - +
188B THR* 1.3 75.4 - - - +
190B PRO* 1.3 62.2 - - + -
191B SER* 3.2 23.6 - - - +
192B LYS* 2.6 34.9 + - + +
193B LEU* 2.8 13.6 + - - -
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Residues in contact with PRO 190 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
121A ILE* 5.3 8.3 - - + -
126A LYS* 5.9 1.6 - - - -
188B THR 3.1 9.6 - - - +
189B VAL* 1.3 90.7 - - + +
191B SER* 1.3 55.9 + - - +
193B LEU* 3.1 13.1 + - + +
194B ARG* 2.9 41.3 + - - +
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Residues in contact with SER 191 (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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122A LYS 5.2 5.2 + - - -
189B VAL* 3.2 17.1 - - - +
190B PRO* 1.3 80.1 - - - +
192B LYS* 1.3 65.7 + - - +
194B ARG* 3.5 24.4 + - - +
195B HIS 3.3 21.5 + - - +
200B ARG* 3.8 16.8 + - - -
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Residues in contact with LYS 192 (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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123A ASN 3.5 26.7 + - - -
124A GLU* 3.8 12.0 + - - +
125A ASN* 3.0 29.8 + - - +
186B VAL* 5.5 0.3 - - - +
187B SER* 3.3 35.1 - - - +
189B VAL* 2.6 23.2 + - + +
191B SER* 1.3 82.2 + - - +
193B LEU* 1.3 59.2 + - - +
195B HIS 3.6 10.3 - - - +
196B PRO* 3.1 31.9 - - + +
207B PRO* 4.6 0.9 - - - +
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Residues in contact with LEU 193 (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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181B THR* 5.2 12.3 - - + +
186B VAL* 3.9 17.5 - - + -
187B SER 3.2 23.8 - - - +
188B THR* 3.7 20.9 - - + +
189B VAL 2.8 8.4 + - - +
190B PRO* 3.1 13.6 + - + +
192B LYS* 1.3 77.4 - - - +
194B ARG* 1.3 64.1 + - + +
195B HIS 3.1 2.0 + - - -
196B PRO* 3.7 0.3 - - - +
206B SER* 3.0 30.6 + - - -
207B PRO* 3.5 11.8 - - + +
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Residues in contact with ARG 194 (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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190B PRO* 2.9 16.9 + - - +
191B SER* 3.5 33.2 + - - +
193B LEU* 1.3 76.3 - - + +
195B HIS* 1.3 63.2 + - - +
196B PRO* 4.0 1.4 - - - +
200B ARG* 4.5 10.9 - - - +
204B CYS 4.5 7.6 - - - +
206B SER* 3.7 14.3 + - - +
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Residues in contact with HIS 195 (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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191B SER 3.3 11.3 + - - +
192B LYS* 3.5 9.7 - - - +
193B LEU 3.1 1.4 - - - -
194B ARG* 1.3 84.8 + - + +
196B PRO* 1.3 63.5 - - - +
197B CYS* 3.2 19.8 + - + +
199B THR 3.2 21.7 + - - -
200B ARG* 3.3 57.8 + - + +
202B GLU 3.8 16.8 - - - -
203B ARG* 5.5 0.2 - - - -
204B CYS* 3.8 28.8 + - + +
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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