Contacts of the helix formed by residues 94 - 100 (chain D) in PDB entry 7C17
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 GLN 94 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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64D PRO* 4.2 5.4 - - - +
66D LYS 4.7 2.5 - - - -
67D ASP* 3.8 15.7 - - - +
68D TYR* 3.2 35.2 + - + +
93D THR* 1.3 89.5 + - - +
95D THR* 1.3 64.6 + - - +
96D LYS* 3.2 23.9 + - + +
97D VAL* 3.6 19.5 - - - +
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Residues in contact with THR 95 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1253C LEU* 6.4 0.7 - - + -
64D PRO 4.9 2.5 - - - -
65D VAL 3.6 23.4 + - - +
66D LYS* 3.7 1.2 - - - -
67D ASP* 2.6 31.5 + - - -
94D GLN* 1.3 71.9 - - - +
96D LYS* 1.3 58.4 + - - +
97D VAL 3.2 2.7 - - - -
98D ARG* 3.0 34.7 + - + +
99D ARG* 4.3 1.8 + - - +
248D ASP* 4.2 20.3 - - - +
526F THR* 6.0 0.7 - - - +
527F THR* 4.7 23.2 + - + -
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Residues in contact with LYS 96 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1298C VAL* 3.6 16.3 - - + +
1299C ASN* 3.1 32.6 - - + +
1321C GLU* 3.0 37.5 + - - +
94D GLN* 3.2 21.3 - - + +
95D THR* 1.3 78.4 - - - +
97D VAL* 1.3 59.4 + - - +
98D ARG 3.2 0.6 + - - -
99D ARG* 3.5 21.1 + - - +
100D GLU* 3.5 16.4 + - - +
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Residues in contact with VAL 97 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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62D PHE 3.4 19.1 - - - +
63D GLY* 3.9 11.7 - - - -
64D PRO* 4.2 0.4 - - + -
93D THR* 3.7 25.1 - - + +
94D GLN 3.6 17.1 + - - +
96D LYS* 1.3 75.9 - - - +
98D ARG* 1.3 62.1 + - + +
99D ARG 3.2 4.2 + - - -
100D GLU* 3.5 19.4 + - + +
101D ARG* 3.3 27.0 + - + +
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Residues in contact with ARG 98 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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57D PHE* 3.9 38.5 + - - +
62D PHE* 3.9 6.5 - - - +
63D GLY 3.1 37.3 + - - +
64D PRO 2.8 43.1 + - - +
65D VAL* 3.6 19.4 + - - +
95D THR* 3.0 23.5 + - + +
97D VAL* 1.3 80.7 - - + +
99D ARG* 1.3 57.6 + - - +
100D GLU 3.5 0.7 - - - -
101D ARG 4.7 0.7 - - - -
246D PRO* 3.3 16.8 - - - +
247D PRO* 3.4 32.2 + - - +
248D ASP* 3.4 22.6 + - + +
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Residues in contact with ARG 99 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1253C LEU 4.1 6.9 + - - -
1254C VAL 4.0 12.1 + - - -
1255C THR 3.9 10.5 + - - -
1256C GLN* 3.9 28.1 - - - +
1298C VAL* 5.8 3.8 - - - +
1321C GLU* 2.4 55.2 + - - +
1324C ASN* 4.6 9.0 + - - +
1325C VAL* 3.4 14.1 - - - +
1328C LYS* 3.4 18.9 - - - +
95D THR 4.6 4.9 - - - +
96D LYS* 3.5 17.0 + - - +
97D VAL 3.2 1.0 - - - -
98D ARG* 1.3 78.6 - - - +
100D GLU* 1.3 59.2 + - - +
246D PRO* 3.7 13.9 - - - +
248D ASP* 3.4 33.6 + - + +
249D LEU* 3.8 16.4 - - + +
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Residues in contact with GLU 100 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1328C LYS* 3.8 35.3 + - - +
33D TRP 5.1 2.1 - - - +
96D LYS* 3.5 18.7 - - - +
97D VAL* 3.5 24.8 + - + +
99D ARG* 1.3 80.5 - - - +
101D ARG* 1.3 65.3 + - - +
102D MET* 3.7 4.9 + - - +
246D PRO* 4.6 0.9 - - - -
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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