Contacts of the strand formed by residues 394 - 397 (chain A) in PDB entry 3NA0
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 LEU 394 (chain A).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
110A LEU* 6.3 0.2 - - - -
111A PHE* 3.9 31.4 - - + -
391A SER* 4.6 1.3 - - - +
393A THR* 1.3 75.2 - - - +
395A GLN* 1.3 68.3 + - - +
396A ARG* 5.1 2.7 - - - +
416A GLN* 3.2 4.7 - - - -
417A VAL* 2.8 39.3 + - + -
419A ILE* 3.7 26.0 - - + -
453A LEU* 3.7 22.0 - - + +
456A GLY* 3.8 22.2 - - - -
601A HEM 3.7 40.2 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with GLN 395 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
110A LEU* 5.7 0.7 - - - -
120A ARG* 3.2 22.4 - - - +
121A PHE* 3.1 25.3 + - + +
393A THR* 2.7 42.7 + - - +
394A LEU* 1.3 78.3 - - - +
396A ARG* 1.3 86.5 + - - +
414A LEU* 3.7 19.7 - - + -
415A VAL 3.2 8.1 - - - +
416A GLN* 3.5 18.4 - - + +
601A HEM 5.3 0.4 + - - -
602A 2DC 3.3 35.4 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 396 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
110A LEU* 4.1 25.5 - - + +
111A PHE* 3.9 20.9 - - + -
114A GLU* 2.6 33.3 + - + +
118A PRO* 3.6 15.7 - - - +
119A GLU 3.3 12.6 - - - +
120A ARG* 3.9 6.8 - - - +
394A LEU* 5.1 0.8 - - - +
395A GLN* 1.3 102.7 + - - +
397A TYR* 1.3 65.7 + - - +
398A LEU* 3.8 1.1 + - + +
413A THR 3.6 0.5 - - - +
414A LEU* 3.6 5.3 - - - -
415A VAL* 2.9 34.6 + - - +
457A TRP 3.3 19.2 + - - -
460A ARG* 4.0 16.4 + - - +
601A HEM 2.9 42.4 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with TYR 397 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
96A VAL* 5.4 1.6 - - - +
118A PRO* 6.0 0.5 - - - +
119A GLU* 3.0 38.0 + - + +
120A ARG 3.4 26.9 - - - -
121A PHE* 3.7 22.4 - - - -
122A LEU* 5.0 2.4 + - + -
396A ARG* 1.3 76.9 - - - +
398A LEU* 1.3 67.5 + - - +
399A VAL* 3.6 9.0 + - - +
412A LYS* 3.5 24.0 - - - +
413A THR 3.3 4.3 - - - -
414A LEU* 3.8 34.7 - - + +
----------------------------------------------------------
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