Contacts of the strand formed by residues 172 - 175 (chain H) in PDB entry 3SRF
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 LYS 172 (chain H).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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167H VAL* 5.6 0.3 - - - +
170H GLY 3.8 3.8 + - - +
171H SER* 1.3 75.8 - - - +
173H ILE* 1.3 63.1 + - - +
174H TYR* 4.0 25.5 + - + +
181H SER* 3.9 12.7 + - - +
182H LEU 3.3 9.2 - - - +
183H GLN* 3.3 34.1 - - + -
197H GLU* 3.8 23.5 + - - +
210H LEU* 4.7 2.9 - - - +
211H PRO* 3.8 22.6 + - + +
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Residues in contact with ILE 173 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
141H ILE* 4.2 23.8 - - + -
158H LEU* 5.8 1.3 - - + -
163H ILE* 4.8 8.5 - - + -
167H VAL* 4.5 10.8 - - + -
171H SER 4.6 1.6 - - - +
172H LYS* 1.3 79.0 - - - +
174H TYR* 1.3 65.6 + - - +
175H VAL* 4.4 9.4 - - + -
180H ILE 3.7 1.0 - - - +
181H SER* 3.4 3.3 + - - -
182H LEU* 2.8 49.3 + - + +
184H VAL* 3.8 26.5 - - + -
192H LEU* 4.9 2.9 - - + -
194H THR* 4.5 4.0 - - + -
208H VAL* 3.7 28.0 - - + -
209H ASN 4.0 2.7 - - - -
210H LEU* 3.7 19.3 - - + -
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Residues in contact with TYR 174 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
338G ARG* 4.1 17.7 - - - -
172H LYS* 4.0 30.9 + - + +
173H ILE* 1.3 75.4 - - - +
175H VAL* 1.3 61.5 + - - +
178H GLY* 3.8 22.2 - - - -
180H ILE 3.4 3.8 - - - -
181H SER* 3.7 28.3 + - - -
198H ASN* 5.4 3.1 - - - -
208H VAL* 3.4 5.7 - - - +
209H ASN* 3.0 34.9 + - - +
211H PRO* 3.9 28.7 - - + -
298H ILE* 3.7 28.3 - - + -
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Residues in contact with VAL 175 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
120H THR* 3.8 20.9 - - + -
156H LEU* 5.0 7.2 - - + -
173H ILE* 4.4 7.4 - - + +
174H TYR* 1.3 79.0 - - - +
176H ASP* 1.3 75.1 + - - +
177H ASP 3.8 0.2 - - - -
178H GLY 3.9 1.1 - - - -
179H LEU 3.2 1.9 + - - -
180H ILE* 2.7 46.2 + - + +
182H LEU* 4.3 24.0 - - + -
202H LEU* 3.7 28.5 - - + -
206H LYS* 4.2 2.7 - - + -
207H GLY 3.5 5.8 - - - +
208H VAL* 4.0 10.8 - - + -
209H ASN* 5.7 0.2 - - - -
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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