Contacts of the helix formed by residues 537 - 541 (chain B) in PDB entry 3HS5
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 ASN 537 (chain B).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
139A TRP* 3.7 13.0 - - - -
228B VAL* 2.8 42.2 + - - +
337B ILE* 3.8 4.0 - - - +
341B ILE* 3.8 13.7 - - + -
373B TYR* 4.1 1.4 - - - -
533B GLY 4.1 7.8 + - - +
534B LEU 3.5 17.1 + - - +
535B MET 3.2 2.1 - - - +
536B GLY* 1.3 79.0 - - - +
538B PRO* 1.4 70.6 - - - +
539B ILE* 3.2 36.2 + - - +
540B CYS* 3.0 27.5 + - - +
541B SER 3.9 1.6 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with PRO 538 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
127A PRO* 4.1 20.2 - - + -
139A TRP* 3.4 32.1 - - + -
142A PHE* 3.6 42.2 - - + -
373B TYR* 5.1 1.8 - - + +
536B GLY 3.5 4.2 - - - +
537B ASN* 1.4 89.7 - - - +
539B ILE* 1.3 57.5 + - + +
540B CYS 3.1 0.2 - - - -
541B SER* 2.6 27.3 + - - +
544B TYR* 3.2 18.1 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 539 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
139A TRP* 4.7 5.4 - - + -
334B LEU* 4.2 29.2 - - + +
337B ILE* 4.0 11.2 - - + -
338B GLY* 3.5 37.2 - - - +
341B ILE* 4.4 5.4 - - + -
361B PHE* 5.0 2.5 - - + -
537B ASN* 3.2 22.3 + - - +
538B PRO* 1.3 75.1 - - + +
540B CYS* 1.3 67.6 + - - +
541B SER 3.3 0.2 - - - -
544B TYR* 3.6 18.0 - - + +
545B TRP* 3.3 40.0 + - + +
550B PHE* 4.3 22.2 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with CYS 540 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
341B ILE* 4.5 1.8 - - - -
361B PHE* 3.7 34.1 - - - -
363B PRO* 3.5 20.2 - - + +
367B PHE* 3.4 18.4 - - - -
373B TYR* 3.7 8.9 - - + -
534B LEU 3.6 24.2 - - - -
535B MET* 3.3 27.6 - - + +
537B ASN 3.0 6.5 + - - +
539B ILE* 1.3 84.5 - - - +
541B SER* 1.3 63.5 + - - +
545B TRP* 4.5 0.4 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with SER 541 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
126A SER 5.1 0.2 - - - -
127A PRO* 3.7 29.0 - - - +
373B TYR* 3.8 17.3 - - - -
537B ASN 3.9 0.4 + - - -
538B PRO 2.6 21.2 + - - -
540B CYS* 1.3 80.2 - - - +
542B PRO* 1.4 70.4 - - - +
543B GLN* 4.0 3.4 + - - +
544B TYR* 3.1 20.3 + - - -
545B TRP* 2.9 25.1 + - - +
----------------------------------------------------------
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