Contacts of the helix formed by residues 794 - 798 (chain K) in PDB entry 6R1U
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 GLY 794 (chain K).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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393K ALA* 3.5 8.2 - - - +
626K THR 4.6 3.4 - - - -
627K VAL 5.6 1.6 - - - -
793K ALA* 1.3 75.9 - - - +
795K GLU* 1.3 60.9 + - - -
796K ALA 3.1 3.4 - - - -
797K THR* 2.8 26.6 + - - -
798K ASN 3.7 1.9 + - - -
808K ALA* 4.2 0.7 - - - -
811K SER* 2.8 20.7 + - - -
901K FAD 3.3 16.4 - - - -
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Residues in contact with GLU 795 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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420K ARG* 3.2 27.2 + - - +
629K LEU* 5.0 0.2 - - - +
765K MET* 3.4 7.6 - - - +
767K TYR* 4.2 0.7 - - - -
768K SER* 2.8 46.3 + - - -
779K TYR* 3.6 1.2 - - - -
794K GLY* 1.3 70.8 - - - -
796K ALA* 1.3 69.8 + - - +
797K THR 3.1 4.2 + - - -
798K ASN* 3.4 9.8 + - - +
802K PRO* 3.5 16.3 - - - +
803K GLN* 2.9 27.4 + - - +
804K THR 4.0 7.6 - - - +
807K GLY 4.7 2.7 - - - -
808K ALA* 3.8 11.4 - - + +
901K FAD 3.3 36.0 + - - +
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Residues in contact with ALA 796 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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629K LEU* 3.8 40.6 - - + +
654K LEU* 4.0 1.6 - - + +
768K SER* 4.0 8.3 - - - -
779K TYR* 3.2 24.7 - - + -
782K ILE* 3.8 20.4 - - + +
794K GLY 3.1 1.4 - - - -
795K GLU* 1.3 88.7 + - - +
797K THR* 1.3 61.2 + - + +
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Residues in contact with THR 797 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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632K LEU* 6.2 1.1 - - + -
779K TYR* 3.4 20.4 - - - +
780K ASP* 5.2 1.0 - - - +
782K ILE* 3.8 20.6 - - + -
783K ALA* 3.5 11.1 - - - +
792K PHE* 4.3 5.6 - - + -
793K ALA* 3.6 27.8 - - - +
794K GLY* 2.8 20.3 + - - +
796K ALA* 1.3 81.8 - - + +
798K ASN* 1.3 59.2 + - - +
799K ARG 3.8 1.7 + - - -
811K SER* 3.5 2.1 - - - -
814K ARG* 2.9 39.0 + - - -
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Residues in contact with ASN 798 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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779K TYR* 3.7 2.8 - - - -
794K GLY 4.5 0.9 - - - +
795K GLU 3.4 6.2 + - - +
796K ALA 3.6 0.6 - - - -
797K THR* 1.3 78.0 + - - +
799K ARG* 1.3 56.9 + - - +
800K HIS* 3.2 6.8 + - - +
801K PHE* 2.8 40.4 + - - +
802K PRO* 3.0 29.3 - - - +
807K GLY* 2.9 33.6 + - - +
810K LEU* 3.9 6.5 - - - +
811K SER* 3.9 8.5 - - - +
814K ARG* 4.1 2.7 - - - +
220L PHE* 3.6 35.0 - - - -
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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