Contacts of the helix formed by residues 90 - 94 (chain M) in PDB entry 1MVW
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 ASP 90 (chain M).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
88M ILE* 2.8 14.4 - - - +
89M GLU* 1.3 78.7 - - + +
91M MET* 1.3 58.5 + - - +
92M ALA* 2.8 27.1 + - - +
93M MET* 2.8 44.7 + - + +
118M TYR* 3.2 6.5 - - + -
120M GLY* 3.3 15.1 + - - +
148M ARG* 2.8 30.1 + - - +
714M ARG 4.0 10.3 - - - +
716M LEU* 5.2 0.5 + - - +
719M ASP* 5.4 4.3 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with MET 91 (chain M).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
88M ILE* 3.8 4.0 - - - +
90M ASP* 1.3 71.3 - - - +
92M ALA* 1.3 55.8 + - - +
93M MET 2.9 5.9 + - - -
94M MET* 2.9 42.2 + - - +
97M LEU* 4.0 4.5 - - - +
102M VAL* 3.9 33.7 - - + +
105M ASN* 3.4 27.8 - - - +
106M LEU* 3.1 39.5 - - + -
117M THR* 3.5 9.2 - - - +
118M TYR 3.0 10.3 + - - +
119M SER* 3.4 33.9 - - - +
124M VAL* 4.3 6.3 - - + -
700M VAL* 5.8 0.4 - - + -
704M ILE* 5.8 2.0 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 92 (chain M).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
90M ASP* 2.8 16.9 + - - +
91M MET* 1.3 77.8 - - - +
93M MET* 1.3 50.4 + - - +
94M MET 3.3 0.9 - - - -
97M LEU* 4.9 7.0 - - - -
119M SER* 4.3 2.8 + - - +
120M GLY* 3.9 21.9 - - - +
704M ILE* 4.8 9.6 - - + -
707M CYS* 4.7 10.5 - - + -
712M PRO 5.2 0.7 - - - +
713M SER* 2.5 31.5 - - - +
714M ARG* 2.5 25.6 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with MET 93 (chain M).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
85M TYR* 3.9 15.0 + - + -
88M ILE* 4.7 11.7 - - + -
90M ASP* 2.8 30.5 + - + +
92M ALA* 1.3 77.5 - - - +
94M MET* 1.3 58.6 + - - +
95M THR 3.6 0.5 + - - -
713M SER* 2.6 23.6 + - - -
714M ARG 3.4 9.6 - - - +
715M VAL* 2.2 82.0 - - + +
716M LEU* 2.7 13.5 - - + +
719M ASP* 4.4 12.3 - - + +
724M TYR* 6.0 3.6 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with MET 94 (chain M).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
81M ASN* 3.2 20.6 - - + +
85M TYR* 4.2 23.1 - - + +
88M ILE* 4.8 6.9 - - + +
90M ASP 4.1 0.4 + - - -
91M MET* 2.9 44.7 + - - +
93M MET* 1.3 78.5 - - - +
95M THR* 1.3 56.3 + - - +
96M HIS 3.1 12.5 + - - +
97M LEU* 3.7 11.6 - - + +
101M ALA* 3.0 51.8 - - + +
102M VAL* 4.4 3.8 - - + +
105M ASN* 4.8 8.5 - - + +
713M SER* 2.6 32.2 + - - -
----------------------------------------------------------
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