Contacts of the helix formed by residues 306 - 312 (chain C) in PDB entry 4BPW
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 ASP 306 (chain C).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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109C ASP 4.2 9.9 + - - +
114C ASP* 5.1 6.0 + - - +
186C VAL* 5.4 0.2 - - - +
304C ARG 4.3 0.8 + - - -
305C LEU* 1.3 71.0 - - - +
307C ILE* 1.3 64.2 + - - +
308C ASN* 3.1 30.1 + - - +
309C VAL* 3.2 32.1 + - + +
310C SER* 3.9 7.6 + - - -
1410C MG 3.1 29.2 - - - -
1412C UTP 5.7 0.5 - - - +
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Residues in contact with ILE 307 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
183C SER* 3.5 26.9 - - - +
186C VAL* 3.9 36.3 - - + -
187C GLU* 4.7 10.5 - - + +
305C LEU 3.2 7.2 + - - +
306C ASP* 1.3 73.6 + - - +
308C ASN* 1.3 77.1 + - - +
310C SER* 3.4 2.9 + - - -
311C LYS* 3.1 30.1 + - + +
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Residues in contact with ASN 308 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
306C ASP* 3.1 18.0 + - - +
307C ILE* 1.3 91.2 - - - +
309C VAL* 1.3 62.0 + - + +
310C SER 3.4 0.3 + - - -
311C LYS* 3.7 16.5 + - - +
312C GLY* 3.9 8.3 + - - -
315C HIS* 4.2 10.0 + - + -
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Residues in contact with VAL 309 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
107C VAL* 3.6 20.8 - - + +
108C PHE 4.8 0.2 - - - -
109C ASP* 3.9 35.0 - - + +
306C ASP* 3.2 32.9 + - + +
308C ASN* 1.3 77.2 - - + +
310C SER* 1.3 61.2 + - - +
312C GLY 4.4 0.9 - - - +
315C HIS* 3.4 51.9 - - + +
317C LEU* 4.4 7.4 - - + -
1410C MG 4.3 2.2 - - - -
1412C UTP 4.4 10.1 - - - +
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Residues in contact with SER 310 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
106C LEU* 4.4 11.2 - - - +
107C VAL* 2.4 30.8 + - - -
108C PHE* 3.8 15.1 - - - -
109C ASP 5.0 0.3 + - - -
182C ARG* 3.3 28.4 + - - +
186C VAL* 3.7 26.2 - - - +
306C ASP 3.9 6.2 + - - -
307C ILE 3.4 2.7 + - - -
308C ASN 3.3 0.2 - - - -
309C VAL* 1.3 77.6 - - - +
311C LYS* 1.3 64.0 + - - +
312C GLY 4.5 1.6 - - - +
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Residues in contact with LYS 311 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
179C SER* 2.7 44.5 + - - +
180C ALA* 5.8 1.2 - - - +
182C ARG* 4.0 7.4 - - - -
183C SER* 4.4 26.0 + - - +
307C ILE* 3.1 26.0 + - + +
308C ASN* 4.1 13.0 - - - +
309C VAL 3.5 0.6 - - - -
310C SER* 1.3 78.1 - - - +
312C GLY* 1.3 64.3 + - - +
313C ILE 3.5 1.2 + - - -
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Residues in contact with GLY 312 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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104C LYS* 4.3 4.7 - - - -
179C SER* 4.5 2.2 - - - -
182C ARG* 5.2 1.9 + - - -
308C ASN 3.9 8.4 + - - -
309C VAL 4.4 2.6 + - - +
310C SER 4.5 2.9 - - - +
311C LYS* 1.3 80.1 - - - +
313C ILE* 1.3 66.1 + - - -
314C ASN* 3.1 13.0 - - - -
315C HIS* 3.3 22.2 - - - +
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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