Contacts of the helix formed by residues 757 - 765 (chain i) in PDB entry 5M32
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 MET 757 (chain i).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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756i HIS* 1.3 69.6 - - - +
758i PRO* 1.3 68.3 - - + +
760i VAL* 3.3 21.5 - - - +
761i VAL* 3.4 7.8 + - - +
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Residues in contact with PRO 758 (chain i).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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756i HIS* 3.7 4.9 - - + -
757i MET* 1.3 92.7 - - + +
759i SER* 1.3 59.4 + - - +
761i VAL* 3.0 21.4 + - + +
762i GLY* 3.3 10.4 + - - -
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Residues in contact with SER 759 (chain i).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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756i HIS* 2.9 22.8 + - - +
758i PRO* 1.3 76.1 - - - +
760i VAL* 1.3 63.9 + - - +
761i VAL 3.3 0.2 - - - -
762i GLY* 3.9 7.2 + - - +
763i VAL* 4.0 11.3 + - - +
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Residues in contact with VAL 760 (chain i).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
588i MET* 6.5 1.3 - - + -
756i HIS 3.0 9.8 + - - +
757i MET* 3.3 18.6 - - - +
758i PRO 3.1 0.6 - - - -
759i SER* 1.3 79.9 - - - +
761i VAL* 1.3 61.3 + - - +
763i VAL* 3.7 3.5 + - - +
764i LEU* 3.4 18.8 + - - +
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Residues in contact with VAL 761 (chain i).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
757i MET 3.4 8.0 + - - +
758i PRO* 3.0 12.3 + - + +
760i VAL* 1.3 80.3 - - - +
762i GLY* 1.3 58.0 + - - +
764i LEU* 2.8 25.1 + - - +
765i VAL* 2.9 16.2 + - - +
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Residues in contact with GLY 762 (chain i).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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758i PRO 3.3 10.0 + - - -
759i SER* 3.9 3.0 + - - -
760i VAL 3.4 0.4 - - - -
761i VAL* 1.3 78.7 - - - +
763i VAL* 1.3 57.4 + - - +
765i VAL* 4.1 5.1 + - - +
766i PHE* 3.3 21.8 + - - +
775i LEU* 5.3 4.9 - - - +
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Residues in contact with VAL 763 (chain i).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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658i ILE* 5.8 9.2 - - + -
759i SER 4.0 10.2 + - - +
760i VAL* 3.7 6.9 + - - +
761i VAL 3.1 0.6 - - - -
762i GLY* 1.3 74.6 - - - +
764i LEU* 1.3 67.6 + - - +
765i VAL 3.2 0.7 - - - -
766i PHE* 3.0 21.5 + - + +
767i THR* 3.6 6.2 + - - -
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Residues in contact with LEU 764 (chain i).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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587i ALA* 5.7 9.2 - - + -
620i GLU* 6.0 0.3 - - - +
624i PHE* 5.7 9.2 - - + -
760i VAL 3.4 12.0 + - - +
761i VAL* 2.8 12.5 + - - +
763i VAL* 1.3 79.9 - - - +
765i VAL* 1.3 59.3 + - - +
766i PHE 3.6 0.2 + - - -
767i THR* 3.9 10.9 + - - -
768i GLN* 4.8 0.9 + - - +
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Residues in contact with VAL 765 (chain i).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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761i VAL 2.9 13.8 + - - +
762i GLY* 4.3 4.9 - - - +
764i LEU* 1.3 73.5 - - - +
766i PHE* 1.3 56.4 + - - +
767i THR 3.1 2.7 - - - -
768i GLN* 2.7 36.7 + - + +
775i LEU* 4.9 5.0 - - + +
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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