Contacts of the strand formed by residues 325 - 329 (chain A) in PDB entry 6CM1
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 THR 325 (chain A).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
323A PHE* 3.4 3.4 - - - -
324A ASP* 1.4 84.0 + - - +
326A VAL* 1.4 72.7 + - - +
327A ALA* 4.2 1.3 - - + -
335A VAL* 3.5 1.4 - - - +
336A PHE* 2.6 46.0 + - + +
368A ILE* 3.2 23.8 + - + +
369A ASN 3.1 19.6 + - - -
370A THR 3.5 1.2 + - - -
371A ALA* 3.6 33.7 - - + +
464A ARG 5.6 3.8 - - - -
478A TYR* 6.0 0.9 - - - -
655A NA 4.1 0.5 - - - -
656A CL 4.1 5.6 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 326 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
323A PHE* 3.9 21.5 - - + -
325A THR* 1.4 75.1 - - - +
327A ALA* 1.3 60.0 + - - +
333A MET* 4.0 30.1 - - + -
334A PHE 3.4 9.2 - - - +
335A VAL* 4.3 5.6 - - + -
464A ARG 5.7 1.8 + - - -
465A GLY* 4.8 6.9 - - - -
466A SER 5.3 0.7 + - - -
467A PHE* 4.4 11.9 - - + -
478A TYR* 4.3 23.9 - - + -
505A TRP* 4.1 16.4 - - + -
506A MET* 3.6 24.5 - - + -
656A CL 4.1 12.1 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 327 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
325A THR* 4.0 2.1 - - + -
326A VAL* 1.3 76.2 - - - +
328A MET* 1.4 58.4 + - - +
329A LEU* 3.8 26.5 - - + -
332A GLU 3.8 1.0 - - - +
333A MET* 3.5 4.2 - - - +
334A PHE* 2.9 32.7 + - + +
336A PHE* 4.2 11.2 - - + -
371A ALA* 3.7 33.2 - - + +
467A PHE* 5.1 1.1 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with MET 328 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
327A ALA* 1.4 70.8 - - - +
329A LEU* 1.4 63.0 + - - +
330A ARG 4.0 1.4 + - - -
331A GLY* 3.6 29.3 + - - +
332A GLU 3.6 4.0 - - - -
333A MET* 3.5 39.5 - - + +
371A ALA 5.1 0.6 + - - -
372A TYR* 5.5 0.9 - - - +
373A GLU* 4.4 11.8 + - - +
467A PHE* 3.8 44.4 - - + +
468A MET 5.7 2.2 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 329 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
327A ALA* 3.8 25.8 - - + -
328A MET* 1.4 76.9 - - - +
330A ARG* 1.4 71.1 + - - +
332A GLU* 2.8 26.4 + - - +
334A PHE* 3.8 31.9 - - + -
336A PHE* 4.3 5.6 - - + -
361A TRP* 5.7 2.5 - - + -
371A ALA 4.7 0.2 - - - -
372A TYR* 3.8 31.9 - - - +
373A GLU* 3.9 4.0 - - - +
379A PHE* 4.2 28.0 - - + -
381A PHE* 4.3 22.4 - - + -
----------------------------------------------------------
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