Contacts of the helix formed by residues 959 - 966 (chain A) in PDB entry 5AMN
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 ARG 959 (chain A).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
954A GLY 5.5 0.6 + - - -
955A ILE* 4.0 32.9 - - + +
956A PRO* 2.9 40.1 + - + +
958A GLU* 1.3 81.8 - - + +
960A LEU* 1.3 64.3 + - - +
961A PHE 3.2 3.3 + - - -
962A ASN* 3.5 9.1 + - + +
963A LEU* 3.1 30.9 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 960 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
915A VAL* 3.9 20.2 - - + +
916A LYS* 4.1 24.0 - - + -
923A LEU* 4.4 8.1 - - + -
952A TYR* 3.8 35.9 - - + -
955A ILE* 4.3 10.5 - - + -
956A PRO 3.7 12.1 - - - +
957A PRO* 3.0 25.1 + - + +
959A ARG* 1.3 77.7 - - - +
961A PHE* 1.3 65.5 + - + +
963A LEU* 3.8 7.4 - - + -
964A LEU* 2.9 54.2 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 961 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
915A VAL* 5.5 6.7 - - + -
923A LEU* 3.6 46.7 - - + -
924A PHE* 3.2 44.5 - + + -
957A PRO 4.7 3.8 - - - -
958A GLU* 3.5 30.7 - - + +
959A ARG 3.2 0.6 - - - -
960A LEU* 1.3 76.0 - - - +
962A ASN* 1.3 59.6 + - - +
965A LYS* 3.0 25.2 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ASN 962 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
958A GLU 5.2 0.4 + - - +
959A ARG* 3.5 9.8 + - + +
961A PHE* 1.3 79.7 - - - +
963A LEU* 1.3 62.2 + - - +
965A LYS* 3.8 14.0 - - - +
966A THR* 3.0 47.7 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 963 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
952A TYR* 4.4 17.3 - - + -
955A ILE* 3.6 40.6 - - + -
959A ARG* 3.1 26.2 + - + +
960A LEU* 3.9 6.7 - - + +
962A ASN* 1.3 80.7 - - - +
964A LEU* 1.3 71.5 + - + +
966A THR* 3.3 8.2 + - - -
968A HIS* 3.0 66.1 + - + +
969A ARG* 4.5 1.8 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 964 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
915A VAL 5.9 1.1 - - - +
918A MET 4.8 7.6 - - - +
920A ILE* 3.6 28.5 - - + +
923A LEU* 4.5 16.2 - - + -
924A PHE* 5.1 1.3 - - + -
935A TRP* 4.2 20.0 - - + +
952A TYR* 3.9 18.8 - - + +
960A LEU* 2.9 36.9 + - + +
961A PHE 4.3 1.1 - - - +
963A LEU* 1.3 79.9 - - + +
965A LYS* 1.3 61.1 + - - +
966A THR 3.1 2.0 - - - -
967A GLY* 3.0 15.8 + - - -
968A HIS 3.3 20.2 - - - +
969A ARG* 3.5 23.6 + - - +
990A GLN* 5.3 2.1 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 965 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
920A ILE* 4.3 2.9 - - - +
924A PHE* 4.0 15.9 - - + -
961A PHE 3.0 16.9 + - - +
962A ASN* 3.4 25.4 - - - +
964A LEU* 1.3 77.3 - - - +
966A THR* 1.3 65.5 + - + +
967A GLY 3.3 1.0 + - - -
990A GLN* 5.2 5.0 - - - +
2014A FMT 3.7 24.7 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with THR 966 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
962A ASN* 3.0 35.3 + - - +
963A LEU* 3.3 10.2 + - - -
964A LEU 3.1 0.4 - - - -
965A LYS* 1.3 86.5 - - + +
967A GLY* 1.3 57.0 + - - +
968A HIS* 3.3 26.9 + - - -
----------------------------------------------------------
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