Contacts of the strand formed by residues 3146 - 3149 (chain G) in PDB entry 1PDW
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 VAL3146 (chain G).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
3144G ASN* 3.4 17.3 + - - +
3145G ARG* 1.3 86.7 - - + +
3147G GLU* 1.3 65.0 + - - +
3148G LYS* 4.4 2.6 + - + +
3153G LEU* 4.0 19.5 - - + -
3154G THR 3.5 10.8 - - - +
3155G SER* 3.7 10.5 - - - +
3160G THR* 4.5 0.7 - - - +
3163G GLU* 3.7 32.1 - - + +
3164G PHE* 3.9 8.5 - - - +
3167G ALA* 4.1 17.5 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with GLU3147 (chain G).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
3122G LYS* 3.0 47.2 + - + +
3124G THR* 4.0 11.6 - - + +
3142G SER* 2.6 35.5 + - - +
3144G ASN* 3.8 13.1 + - + -
3146G VAL* 1.3 77.4 - - - +
3148G LYS* 1.3 80.8 + - - +
3149G ASP* 5.2 0.5 - - - +
3152G ILE 3.8 1.6 - - - +
3153G LEU* 3.4 1.9 - - - +
3154G THR* 2.9 51.1 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LYS3148 (chain G).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
3101G LEU* 4.7 7.0 - - - +
3146G VAL* 4.3 3.3 - - + -
3147G GLU* 1.3 85.9 + - - +
3149G ASP* 1.3 60.6 + - - +
3150G GLY* 2.7 35.4 + - - +
3151G LEU* 5.0 4.8 - - - +
3152G ILE 3.6 2.2 - - - -
3153G LEU* 4.2 26.9 - - + +
3167G ALA* 5.6 2.9 - - + +
3171G ALA* 4.1 26.0 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ASP3149 (chain G).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
3120G GLY 4.5 1.0 - - - +
3121G SER* 3.3 15.3 + - - -
3122G LYS* 2.6 54.2 + - + +
3147G GLU* 4.1 1.3 - - - +
3148G LYS* 1.3 72.2 - - - +
3150G GLY* 1.3 67.3 + - - +
3151G LEU 3.2 0.9 + - - -
3152G ILE* 2.9 28.2 + - - +
----------------------------------------------------------
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