Contacts of the helix formed by residues 150 - 168 (chain C) in PDB entry 6S6A
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 TYR 150 (chain C).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
144C ILE* 3.8 24.5 - - + -
145C ASP 4.6 3.8 - - - +
146C ALA* 5.1 3.6 - - - -
148C ASP 4.1 12.1 - - - -
149C ASP* 1.3 72.3 - - - +
151C MET* 1.3 65.9 + - - +
152C GLU 3.4 1.8 - - - -
153C ALA* 2.9 10.6 + - + +
154C LEU* 2.7 58.1 + - + +
191C THR* 3.5 31.0 + - + -
194C ASP* 2.3 42.6 + - - +
195C ILE* 3.7 25.6 - - + -
198C ARG* 4.6 0.2 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with MET 151 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
149C ASP* 3.3 24.1 + - - +
150C TYR* 1.3 91.4 - - - +
152C GLU* 1.3 69.2 + - - +
154C LEU* 3.4 10.5 + - + +
155C THR* 3.2 19.4 + - - -
194C ASP* 5.3 0.4 - - - +
198C ARG* 3.3 41.3 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 152 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
69C LEU* 4.3 21.5 - - + +
149C ASP* 4.1 10.6 + - - +
150C TYR 3.4 0.4 - - - -
151C MET* 1.3 79.6 - - - +
153C ALA* 1.3 56.3 + - - +
155C THR* 3.0 25.9 + - - -
156C ARG* 3.4 9.7 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 153 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
69C LEU* 3.8 22.9 - - + -
142C TYR* 3.6 14.6 + - + +
144C ILE* 4.2 25.4 - - + -
145C ASP 5.5 1.6 - - - +
149C ASP 5.1 1.8 + - - +
150C TYR* 2.9 24.4 + - + +
152C GLU* 1.3 72.7 - - - +
154C LEU* 1.3 63.1 + - - +
156C ARG* 3.5 2.3 + - - +
157C LEU* 3.1 21.1 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 154 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
144C ILE* 5.2 4.4 - - + +
150C TYR* 2.7 44.8 + - + +
151C MET* 3.7 15.0 - - + +
153C ALA* 1.3 72.0 - - - +
155C THR* 1.3 60.3 + - - +
157C LEU* 3.2 26.0 - - + +
158C HIS* 3.3 11.3 + - - +
195C ILE* 4.4 12.6 - - + +
198C ARG* 3.7 31.2 - - + -
199C ALA* 3.7 40.2 - - + +
202C ASP* 4.9 9.7 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with THR 155 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
151C MET 3.2 11.1 + - - -
152C GLU* 3.0 13.8 + - - -
154C LEU* 1.3 75.0 - - - +
156C ARG* 1.3 69.7 + - - +
158C HIS* 3.1 16.7 + - - +
159C ILE* 3.2 29.4 + - + +
202C ASP* 5.6 3.3 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 156 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
68C GLY 6.2 0.4 - - - -
69C LEU* 4.1 25.3 - - + +
142C TYR* 3.8 17.9 - - + +
152C GLU* 3.4 10.1 + - - +
153C ALA 4.0 2.2 - - - +
155C THR* 1.3 80.2 - - - +
157C LEU* 1.3 59.0 + - - +
159C ILE* 3.0 25.2 + - - +
160C THR* 2.7 46.8 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 157 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
142C TYR* 4.0 32.4 - - + -
144C ILE* 4.1 22.4 - - + -
153C ALA 3.1 14.9 + - - +
154C LEU* 3.2 16.6 - - + +
155C THR 3.1 0.2 - - - -
156C ARG* 1.3 76.1 - - - +
158C HIS* 1.3 64.6 + - - +
160C THR* 3.4 1.0 + - - -
161C VAL* 3.1 41.7 + - + +
175C VAL* 4.4 21.8 - - + -
199C ALA* 4.3 24.0 - - + -
213C LEU* 4.7 8.5 - - + -
215C PHE* 5.4 0.2 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with HIS 158 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
154C LEU 3.3 8.1 + - - +
155C THR* 3.1 11.6 + - - +
157C LEU* 1.3 81.2 - - + +
159C ILE* 1.3 55.6 + - + +
161C VAL* 4.5 3.7 - - - +
162C SER* 2.2 49.4 + - - -
199C ALA 5.1 1.3 - - - +
202C ASP* 3.2 49.7 + - + +
203C LEU* 4.1 21.2 - - + +
206C ALA* 3.6 26.3 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 159 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
155C THR* 3.4 31.6 - - + +
156C ARG* 3.0 28.6 + - - +
158C HIS* 1.3 78.8 - - + +
160C THR* 1.3 58.2 + - + +
162C SER* 3.3 5.4 + - - -
163C LYS* 2.8 44.5 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with THR 160 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
67C MET* 3.8 33.7 - - + -
134C PHE* 4.6 7.8 - - + -
140C LEU* 4.4 7.7 - - - +
142C TYR* 4.0 15.9 - - + -
156C ARG* 2.7 37.6 + - + +
157C LEU 3.6 4.2 + - - -
159C ILE* 1.3 77.7 - - + +
161C VAL* 1.3 56.5 + - - +
163C LYS* 3.5 14.5 - - + +
164C ALA* 3.3 27.0 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 161 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
140C LEU* 4.5 9.0 - - + -
142C TYR* 5.5 3.6 - - + -
157C LEU* 3.1 39.1 + - + +
158C HIS* 4.5 3.1 - - - +
160C THR* 1.3 78.4 - - - +
162C SER* 1.3 60.5 + - - +
164C ALA 3.3 0.5 + - - -
165C TYR* 3.0 28.8 + - - +
173C PHE* 3.7 33.8 - - + -
203C LEU* 5.0 7.9 - - + -
211C LEU* 3.6 33.7 - - + -
213C LEU* 4.5 7.0 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with SER 162 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
158C HIS* 2.2 45.2 + - - -
159C ILE* 3.3 8.8 + - - -
161C VAL* 1.3 73.5 - - - +
163C LYS* 1.3 65.3 + - - +
164C ALA 3.3 0.5 + - - -
165C TYR* 3.6 3.6 + - - +
166C LYS* 3.5 20.1 + - - +
203C LEU* 5.7 0.9 - - - -
206C ALA* 5.7 0.2 - - - -
208C LEU* 3.7 31.1 - - - +
211C LEU* 4.9 0.2 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 163 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
131C GLU* 3.1 45.3 - - - +
134C PHE* 4.7 15.3 - - + -
159C ILE* 2.8 27.2 + - + +
160C THR* 3.5 17.7 - - + +
162C SER* 1.3 75.7 - - - +
164C ALA* 1.3 56.6 + - - +
166C LYS* 3.2 25.9 - - - +
167C VAL 3.8 1.4 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 164 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
134C PHE* 3.5 37.7 - - + +
140C LEU* 4.7 1.3 - - + -
160C THR 3.3 15.9 + - - +
161C VAL 3.3 2.9 + - - +
162C SER 3.3 0.6 - - - -
163C LYS* 1.3 73.6 - - - +
165C TYR* 1.3 59.8 - - - +
166C LYS 3.1 2.0 - - - -
167C VAL* 3.5 4.1 + - - +
168C ASN* 3.0 30.3 + - - +
171C MET* 4.0 18.5 - - - +
173C PHE* 4.2 6.0 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with TYR 165 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
161C VAL 3.0 10.7 + - - +
162C SER* 4.0 5.4 - - - +
164C ALA* 1.3 72.5 - - - +
166C LYS* 1.3 69.4 + - - +
168C ASN 4.1 5.4 - - - -
169C PRO* 3.2 59.4 + - + +
173C PHE* 4.0 10.6 - + + -
208C LEU* 4.3 20.6 - - + -
210C LYS* 3.8 32.2 + - + +
211C LEU* 3.3 42.2 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 166 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
131C GLU* 5.1 4.5 - - - +
162C SER 3.5 9.6 + - - +
163C LYS* 3.2 16.8 - - - +
165C TYR* 1.3 83.2 - - - +
167C VAL* 1.3 67.2 + - + +
169C PRO* 4.7 2.4 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 167 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
131C GLU* 3.0 48.0 - - + +
134C PHE* 3.7 23.8 - - + +
135C ARG* 3.4 34.1 - - + -
163C LYS 3.8 6.3 - - - +
164C ALA* 3.5 5.4 + - - +
166C LYS* 1.3 79.9 - - + +
168C ASN* 1.3 58.2 + - - +
169C PRO* 3.8 5.0 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ASN 168 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
134C PHE 3.4 19.5 - - - +
135C ARG 4.1 13.9 + - - +
137C THR 3.7 19.2 + - - +
164C ALA 3.0 15.5 + - - +
165C TYR* 3.5 4.8 - - - +
167C VAL* 1.3 73.9 - - + +
169C PRO* 1.4 64.8 - - - +
170C ASP* 3.1 22.0 + - - +
171C MET* 3.2 38.5 + - + +
173C PHE* 4.7 0.3 - - - -
----------------------------------------------------------
Back to top of page
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
------------------------------------------------------------
Atomic class I II III IV V VI VII VIII
------------------------------------------------------------
I (Hydrophilic) + + + - + + + +
II (Acceptor) + - + - + + + -
III (Donor) + + - - + + - +
IV (Hydrophobic) - - - + + + + +
V (Aromatic) + + + + + + + +
VI (Neutral) + + + + + + + +
VII (Neutral-donor) + + - + + + - +
VIII (Neutral-acceptor) + - + + + + + -
------------------------------------------------------------
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