Contacts of the strand formed by residues 688 - 693 (chain B) in PDB entry 1MQB
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 MET 688 (chain B).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
647B THR* 3.3 3.5 - - - -
648B LEU* 3.2 45.5 + - + -
652B TYR* 4.7 18.5 - - + +
657B ARG* 3.6 48.5 - - + +
660B PHE* 4.0 14.6 - - + -
661B LEU* 4.2 13.7 - - + -
682B ILE 3.0 10.3 - - - +
683B SER* 3.6 29.8 - - - -
684B LYS 4.8 1.1 - - - -
685B TYR 3.5 13.1 + - - +
686B LYS* 3.6 2.6 - - + +
687B PRO* 1.3 76.2 - - - +
689B MET* 1.3 60.4 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with MET 689 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
613B VAL* 4.3 11.2 - - + -
615B ARG* 4.4 21.5 - - + +
645B ILE* 3.7 29.8 - - + -
646B LYS 3.1 7.6 - - - +
647B THR* 4.0 13.9 - - + -
660B PHE* 4.2 3.5 - - - -
661B LEU* 4.8 0.9 - - - +
681B VAL* 3.3 7.1 - - - +
682B ILE* 2.7 64.5 + - + +
686B LYS 5.8 0.2 - - - +
687B PRO* 3.5 20.1 + - + +
688B MET* 1.3 80.9 - - - +
690B ILE* 1.3 63.0 + - - +
691B ILE* 3.9 10.1 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 690 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
644B ALA 3.7 1.6 - - - +
645B ILE* 3.6 1.4 - - - -
646B LYS* 2.8 49.3 + - + +
660B PHE* 3.3 54.1 - - + +
661B LEU* 4.8 2.7 - - + -
663B GLU* 4.2 15.3 - - + +
664B ALA* 3.9 21.3 - - + -
667B MET* 4.9 6.7 - - + -
678B LEU* 3.9 20.4 - - + -
680B GLY 4.0 4.0 - - - -
681B VAL* 4.3 2.5 - - + -
689B MET* 1.3 74.3 - - - +
691B ILE* 1.3 60.3 + - - +
692B THR* 4.0 15.3 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 691 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
608B ILE* 4.1 22.4 - - + -
613B VAL* 4.0 19.7 - - + -
632B LEU* 4.7 6.1 - - + -
643B VAL* 3.7 34.3 - - + -
644B ALA 3.4 2.2 - - - +
645B ILE* 3.5 37.7 - - + -
678B LEU* 3.3 4.7 - - - +
679B GLU* 3.0 28.2 + - + -
680B GLY 3.0 17.1 + - - +
681B VAL* 4.8 2.2 - - - +
682B ILE* 5.0 3.4 - - + -
689B MET* 3.9 14.8 - - + -
690B ILE* 1.3 72.8 - - - +
692B THR* 1.3 63.0 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with THR 692 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
643B VAL* 3.1 11.1 - - - +
644B ALA* 2.9 34.5 + - - +
646B LYS* 5.7 6.0 - - + +
667B MET* 3.7 30.7 - - + -
676B ILE* 4.3 6.3 - - + -
677B ARG 3.3 11.7 - - - +
678B LEU* 4.4 1.3 - - + -
679B GLU* 4.0 6.7 - - - +
690B ILE* 4.0 15.7 - - + +
691B ILE* 1.3 79.5 - - - +
693B GLU* 1.3 61.9 + - - +
1001B ANP 3.2 23.8 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 693 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
642B PRO 4.2 6.1 - - - +
675B ILE 3.9 0.9 - - - +
676B ILE* 3.6 14.1 - - + +
677B ARG* 3.1 64.2 + - - +
679B GLU* 4.2 8.3 - - - +
692B THR* 1.3 73.6 - - - +
694B TYR* 1.3 62.5 + - - +
695B MET* 3.5 8.5 + - + +
754B LYS* 3.3 42.0 + - - +
1001B ANP 3.0 22.2 + - - -
----------------------------------------------------------
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