Contacts of the helix formed by residues 676 - 682 (chain E) in PDB entry 6M04
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 ILE 676 (chain E).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
673E ILE* 3.8 20.4 - - + -
674E GLU 3.2 15.7 - - - +
675E GLU* 1.3 70.0 - - - +
677E ILE* 1.3 64.4 + - + +
678E SER 3.2 2.5 - - - -
679E PHE* 3.0 30.2 + - + -
680E GLN 2.9 20.6 + - - -
699E PRO* 3.7 39.9 - - + +
701E SER* 3.4 38.2 + - - +
702E ILE* 5.1 5.4 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 677 (chain E).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
675E GLU* 3.2 19.7 + - + +
676E ILE* 1.3 80.5 - - + +
678E SER* 1.3 60.6 + - - +
680E GLN* 3.1 19.1 + - + +
681E HIS* 2.9 38.0 + - + +
701E SER* 4.2 5.8 - - - +
704E HIS* 3.8 26.5 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with SER 678 (chain E).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
652E HIS* 3.6 27.5 + - - -
654E ILE* 5.6 1.1 - - - +
655E PHE* 5.0 7.0 - - - +
675E GLU* 3.0 35.5 + - - -
677E ILE* 1.3 78.6 - - - +
679E PHE* 1.3 66.9 + - - +
681E HIS* 3.4 16.8 - - - +
682E LEU* 2.9 31.3 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 679 (chain E).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
650E ILE* 3.7 38.4 - - + -
651E PRO 5.2 0.9 - - - -
652E HIS* 6.3 0.2 - - - -
654E ILE* 4.3 20.6 - - + -
660E LEU* 5.9 0.9 - - + -
663E LEU* 4.6 16.8 - - + -
673E ILE* 6.4 2.0 - - + -
674E GLU* 5.7 4.9 - - + -
675E GLU 4.5 5.2 - - - -
676E ILE* 3.0 40.2 + - + +
678E SER* 1.3 88.5 + - - +
680E GLN* 1.3 58.9 + - - +
681E HIS 3.4 0.4 - - - -
682E LEU* 2.9 29.1 - - + +
683E LYS* 3.5 1.0 + - - -
685E LEU* 4.3 27.4 - - + -
688E LEU* 6.4 0.7 - - + -
704E HIS* 4.5 2.9 - - - +
705E VAL* 3.4 18.6 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with GLN 680 (chain E).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
676E ILE 2.9 5.3 + - - -
677E ILE* 3.1 22.5 + - + +
679E PHE* 1.3 75.5 - - - +
681E HIS* 1.3 86.7 + - - +
682E LEU 3.2 0.4 + - - -
683E LYS* 3.7 20.4 + - - +
704E HIS* 3.5 49.1 - - + +
706E LYS* 4.5 10.4 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with HIS 681 (chain E).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
655E PHE* 4.9 15.9 - - + +
677E ILE* 2.9 30.4 + - + +
678E SER* 3.4 16.1 - - - +
679E PHE 3.4 0.2 - - - -
680E GLN* 1.3 94.2 + - - +
682E LEU* 1.3 54.1 + - + +
683E LYS* 3.0 12.1 + - - +
684E ARG* 2.5 27.9 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 682 (chain E).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
654E ILE* 3.5 39.7 - - + +
655E PHE* 3.7 31.0 - - + +
657E LEU 3.8 3.6 - - - +
658E SER* 5.0 0.9 - - - -
660E LEU* 3.7 26.7 - - + -
678E SER* 2.9 20.3 + - - +
679E PHE* 2.9 16.4 - - + +
680E GLN 3.2 0.2 - - - -
681E HIS* 1.3 75.2 - - + +
683E LYS* 1.3 59.3 + - - +
684E ARG* 3.1 26.9 + - - +
685E LEU* 3.3 26.6 - - + +
705E VAL* 3.4 3.5 - - - +
----------------------------------------------------------
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