Contacts of the helix formed by residues 761 - 781 (chain A) in PDB entry 4Z7I
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 HIS 761 (chain A).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
508A TYR* 5.7 1.6 - - - -
721A TYR* 3.7 14.3 - + - -
725A ASP* 3.8 24.6 - - + +
728A ARG* 3.5 29.4 + - - +
759A GLU* 3.3 12.0 + - - +
760A ASN* 1.3 96.2 + - - +
762A THR* 1.3 66.9 + - + +
763A ALA 4.8 0.2 - - - +
764A PRO* 3.1 10.3 - - + +
765A ILE* 3.4 15.5 - - - +
815A SER* 6.0 1.6 - - - -
816A MET* 5.2 7.9 - - + -
1110A NAG 5.0 10.8 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with THR 762 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
509A GLU* 3.2 21.5 + - - +
760A ASN 3.8 3.4 + - - -
761A HIS* 1.3 74.1 - - + +
763A ALA* 1.3 53.1 + - - +
765A ILE* 2.6 23.8 + - - -
766A THR* 2.7 33.1 + - - +
815A SER* 3.1 41.0 + - - +
816A MET* 5.2 4.3 - - + -
818A GLU* 4.7 2.4 - - - +
819A LEU* 3.7 36.9 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 763 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
508A TYR* 5.0 1.1 - - + -
509A GLU* 4.2 20.9 - - + -
512A LEU* 4.8 11.4 - - + +
516A PHE* 5.6 0.2 - - - -
725A ASP* 3.7 23.3 + - + +
729A ALA* 3.6 18.3 - - + +
761A HIS* 3.4 0.4 - - - +
762A THR* 1.3 82.2 + - - +
764A PRO* 1.3 68.4 - - + +
766A THR* 3.2 17.9 + - - -
767A GLU* 3.5 8.3 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with PRO 764 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
725A ASP* 3.4 20.4 - - + +
728A ARG* 3.5 13.9 - - + +
729A ALA* 3.7 12.3 - - + +
732A ILE* 3.4 13.6 - - + +
755A TYR* 3.6 10.3 - - - +
756A LEU* 4.7 1.3 - - + -
759A GLU* 3.5 27.6 - - + +
761A HIS* 3.1 27.4 - - + +
763A ALA* 1.3 87.8 - - + +
765A ILE* 1.3 57.0 + - - +
767A GLU* 3.5 0.7 + - - -
768A ALA* 2.9 30.5 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 765 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
756A LEU* 4.4 8.5 - - + -
759A GLU* 3.8 35.2 - - + +
761A HIS 3.4 16.4 - - - +
762A THR 2.6 12.0 + - - +
764A PRO* 1.3 69.8 - - - +
766A THR* 1.3 55.8 + - - +
768A ALA* 3.1 5.4 + - - +
769A LEU* 2.7 42.5 + - + +
799A LEU* 3.8 35.0 - - + -
802A GLN* 4.8 5.6 - - + +
819A LEU* 3.6 38.8 - - + -
823A LEU* 4.0 3.4 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with THR 766 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
513A ASP* 6.1 1.4 - - - +
762A THR* 2.7 37.3 + - - +
763A ALA* 3.2 15.4 + - - -
765A ILE* 1.3 75.2 - - + +
767A GLU* 1.3 65.1 + - - +
769A LEU* 3.3 9.2 + - - +
770A PHE* 2.9 27.6 + - - +
818A GLU* 5.3 4.3 - - + +
819A LEU* 5.2 2.0 - - + -
822A ALA* 4.3 21.1 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 767 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
513A ASP* 3.8 8.7 - - + +
516A PHE* 3.3 38.7 - - + -
517A LYS* 3.4 14.6 + - - -
729A ALA* 4.0 15.0 - - + +
732A ILE* 4.8 2.2 - - + -
733A ASN* 3.0 26.0 - - + +
763A ALA 3.5 15.6 + - - +
764A PRO 4.0 3.1 - - - +
765A ILE 3.3 0.4 - - - -
766A THR* 1.3 81.0 + - - +
768A ALA* 1.3 61.1 + - - +
770A PHE* 3.4 8.5 + - - +
771A GLN* 3.2 43.4 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 768 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
732A ILE* 3.8 23.3 - - + -
753A ILE* 4.4 4.0 - - + -
756A LEU* 3.6 29.2 - - + -
764A PRO 2.9 19.7 + - - +
765A ILE 3.6 3.8 - - - +
767A GLU* 1.3 73.7 - - - +
769A LEU* 1.3 65.1 + - - +
770A PHE 3.1 0.2 - - - -
771A GLN* 3.5 3.0 + - - +
772A THR* 3.2 32.8 + - + +
795A VAL* 6.0 1.1 - - - -
799A LEU* 6.3 0.2 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 769 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
765A ILE* 2.7 38.7 + - + +
766A THR* 3.6 6.1 - - - +
768A ALA* 1.3 72.1 - - - +
770A PHE* 1.3 58.1 + - - +
772A THR* 3.6 4.9 + - - +
773A ASP* 3.1 28.1 + - - +
795A VAL* 4.3 9.9 - - + -
799A LEU* 3.9 19.7 - - + -
822A ALA* 4.4 26.2 - - + +
823A LEU* 4.1 15.9 - - + -
826A PHE* 3.8 40.7 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 770 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
513A ASP* 5.6 2.0 - - - +
517A LYS* 3.5 46.4 - - + -
737A GLU* 5.2 1.8 - - - -
766A THR 2.9 13.3 + - - +
767A GLU* 3.5 20.4 - - - +
768A ALA 3.1 0.2 - - - -
769A LEU* 1.3 76.3 - - - +
771A GLN* 1.3 83.5 + - - +
773A ASP* 3.2 5.7 + - + +
774A LEU* 3.0 44.4 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with GLN 771 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
517A LYS* 5.3 0.4 - - - +
732A ILE* 4.7 3.4 - - + +
733A ASN* 3.9 4.8 + - - -
736A PHE* 3.4 48.8 - - + +
737A GLU* 2.8 35.7 + - - +
767A GLU* 3.2 36.3 + - + +
768A ALA 3.5 3.8 + - - +
770A PHE* 1.3 93.9 - - + +
772A THR* 1.3 60.5 + - - +
774A LEU* 3.5 11.3 + - - +
775A ILE* 3.4 28.6 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with THR 772 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
736A PHE* 4.1 13.0 - - + -
750A PHE* 3.9 17.5 - - + -
753A ILE* 4.3 6.7 - - + -
768A ALA* 3.2 19.9 + - + +
769A LEU* 3.6 10.6 + - - +
771A GLN* 1.3 74.1 - - - +
773A ASP* 1.3 63.2 + - - +
774A LEU 3.2 0.2 - - - -
775A ILE* 3.3 9.6 + - - +
776A TYR* 3.0 27.9 + - - +
791A LEU* 4.1 6.7 - - - +
792A VAL* 5.3 4.7 - - - +
795A VAL* 3.7 38.5 - - + +
826A PHE* 5.6 2.4 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 773 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
769A LEU 3.1 17.8 + - - +
770A PHE* 3.2 6.3 + - - +
772A THR* 1.3 78.3 + - - +
774A LEU* 1.3 59.9 + - - +
776A TYR* 3.4 5.3 + - - +
777A ASN* 3.0 57.5 + - - -
792A VAL* 5.9 0.9 - - - -
826A PHE* 4.5 9.8 - - + -
829A THR* 5.7 0.2 + - - -
830A HIS* 3.3 30.3 + - - -
933A ARG* 5.5 4.3 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 774 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
520A LYS* 5.5 11.4 - - - +
737A GLU* 5.7 1.8 - - - +
770A PHE* 3.0 36.4 + - + +
771A GLN* 3.5 17.0 - - - +
773A ASP* 1.3 75.1 - - - +
775A ILE* 1.3 61.4 + - + +
777A ASN* 3.3 3.5 + - + +
778A LEU* 2.9 49.8 + - + +
972A TYR* 4.6 13.0 - - + +
973A LEU* 4.5 13.9 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 775 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
736A PHE* 3.9 30.7 - - + -
746A LEU* 4.3 2.5 - - + -
750A PHE* 4.1 15.5 - - + -
771A GLN* 3.4 16.8 + - - +
772A THR* 3.3 6.1 + - - +
774A LEU* 1.3 75.0 - - + +
776A TYR* 1.3 66.8 + - - +
778A LEU* 3.4 6.8 + - + +
779A LEU* 3.0 34.5 + - + +
791A LEU* 3.6 18.6 - - + -
1013A TRP* 3.5 44.4 - - + +
1021A LEU* 4.3 5.8 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with TYR 776 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
772A THR 3.0 17.6 + - - +
773A ASP* 3.6 6.1 - - - +
775A ILE* 1.3 77.2 - - - +
777A ASN* 1.3 74.0 - - - +
779A LEU* 3.7 2.1 - - - +
780A GLU* 2.7 64.2 + - + +
788A ALA* 3.2 46.3 - - + +
789A SER* 4.3 10.7 + - - -
791A LEU* 4.0 9.6 - - + +
792A VAL* 3.6 20.9 - - + -
830A HIS* 3.4 36.6 - + + +
904B ARG* 4.5 7.6 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ASN 777 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
773A ASP* 3.0 44.3 + - - +
774A LEU* 3.8 6.4 - - + +
776A TYR* 1.3 87.9 - - - +
778A LEU* 1.3 64.8 + - - +
780A GLU* 3.4 6.6 + - - +
781A LYS* 3.0 41.2 + - - +
830A HIS* 5.6 0.2 + - - -
933A ARG* 2.9 28.0 - - - +
934A HIS* 4.8 6.6 - - - -
972A TYR* 6.1 0.7 - - - -
973A LEU* 4.4 16.2 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 778 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
774A LEU* 2.9 37.2 + - + +
775A ILE* 3.8 6.3 - - + +
777A ASN* 1.3 79.6 - - - +
779A LEU* 1.3 63.6 + - - +
781A LYS* 3.5 7.8 + - - +
782A LEU* 3.6 15.6 + - - +
972A TYR 4.3 0.7 - - - +
973A LEU* 3.7 28.7 - - + +
975A SER* 3.3 23.6 + - - +
1010A ASN* 3.6 28.3 - - + +
1013A TRP* 5.0 18.2 - - + -
1014A MET* 3.6 20.8 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 779 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
775A ILE* 3.0 28.5 + - + +
776A TYR 3.7 3.6 - - - +
778A LEU* 1.3 75.9 - - - +
780A GLU* 1.3 57.0 + - - +
782A LEU* 2.8 29.4 + - - +
783A GLY 3.4 4.9 + - - -
784A TYR* 3.6 18.6 + - + +
787A LEU* 4.2 9.2 - - + +
788A ALA* 4.0 30.1 - - + +
791A LEU* 4.5 4.5 - - + -
1013A TRP* 4.9 1.8 - - + -
1014A MET* 3.8 20.2 - - + -
1018A LEU* 4.0 26.0 - - + -
1021A LEU* 3.7 27.8 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 780 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
776A TYR* 2.7 57.8 + - + +
777A ASN* 3.6 8.3 - - - +
778A LEU 3.4 0.2 - - - -
779A LEU* 1.3 73.6 - - - +
781A LYS* 1.3 90.7 + - - +
782A LEU 3.1 4.3 + - - -
783A GLY 3.8 5.7 + - - -
784A TYR 4.9 1.3 - - - +
785A MET* 3.8 20.6 - - + +
788A ALA* 4.5 7.2 - - + -
933A ARG 4.4 0.3 - - - +
934A HIS* 4.5 1.6 - - - -
935A PHE* 3.2 42.8 + - + -
904B ARG* 3.4 20.0 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 781 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
777A ASN* 3.0 26.6 + - - +
778A LEU 3.5 2.2 + - - +
779A LEU 3.2 0.2 - - - -
780A GLU* 1.3 103.3 + - - +
782A LEU* 1.3 64.4 + - - +
933A ARG 2.6 29.7 + - - -
934A HIS 3.6 3.4 - - - -
935A PHE* 3.6 25.6 - - + +
938A HIS* 3.3 56.6 + - + +
973A LEU* 4.0 21.3 - - + +
979A HIS* 5.7 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