Contacts of the helix formed by residues 141 - 145 (chain B) in PDB entry 6P59
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 PHE 141 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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111B ASP* 3.8 32.8 - - + -
114B ILE* 5.4 2.7 - - + -
115B HIS* 3.7 21.3 - + + +
119B PHE* 3.5 41.1 - + + -
120B PRO 4.3 1.2 + - - -
139B CYS* 3.1 14.9 - - - -
140B GLY* 1.3 77.7 - - - +
142B GLN* 1.3 64.1 + - - +
143B ARG* 3.1 20.9 - - + -
144B GLY* 3.1 34.0 + - - -
145B HIS* 3.9 4.2 - - - -
209B PHE* 3.6 19.1 - + + -
210B PRO 3.7 19.7 - - - -
211B SER* 4.4 6.1 - - - -
301B ZN 4.1 0.7 - - - -
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Residues in contact with GLN 142 (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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139B CYS* 4.1 12.6 + - - +
140B GLY 3.8 3.4 + - - -
141B PHE* 1.3 74.0 - - - +
143B ARG* 1.3 61.3 + - - +
144B GLY 3.1 0.9 + - - -
145B HIS* 3.4 13.7 + - - +
146B ARG* 2.3 42.6 + - - +
154B TYR* 3.7 18.4 - - - +
158B GLN* 3.7 23.4 + - + +
162B ARG* 4.5 19.0 - - - +
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Residues in contact with ARG 143 (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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108B ILE* 5.2 1.9 - - - +
111B ASP* 3.8 13.1 - - - +
112B SER 4.8 0.5 + - - -
141B PHE* 3.1 19.4 - - + -
142B GLN* 1.3 77.7 - - - +
144B GLY* 1.3 61.2 + - - +
145B HIS 3.4 0.5 + - - -
146B ARG* 3.6 47.5 - - - +
211B SER* 3.3 23.8 + - - +
213B ALA* 3.7 25.2 + - - +
214B TYR* 3.8 21.4 - - - +
219B LEU* 6.0 1.8 - - - +
302B GOL 3.0 44.0 + - - +
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Residues in contact with GLY 144 (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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111B ASP 3.9 6.5 - - - -
112B SER* 3.1 30.7 + - - -
115B HIS* 3.8 14.4 - - - -
116B LYS* 4.3 4.2 + - - -
141B PHE* 3.1 31.3 + - - -
142B GLN 3.1 1.8 - - - -
143B ARG* 1.3 79.2 - - - +
145B HIS* 1.3 59.9 + - - +
146B ARG 3.3 2.6 + - - -
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Residues in contact with HIS 145 (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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151A ARG* 4.6 3.6 - - + -
152A GLU* 3.3 28.7 + - - -
115B HIS* 3.0 14.1 + + - -
116B LYS* 5.3 4.5 + - - +
121B CYS* 3.1 10.7 - - - -
139B CYS* 3.3 6.7 - - - -
141B PHE 3.9 4.3 - - - -
142B GLN* 3.4 6.0 + - + +
143B ARG 3.3 1.4 - - - -
144B GLY* 1.3 74.5 - - - +
146B ARG* 1.3 60.6 + - - +
147B ASP 4.0 0.2 - - - -
148B GLN 4.4 10.3 - - - +
154B TYR* 3.1 51.9 - + + +
301B ZN 1.9 37.2 - - - -
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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