Contacts of the strand formed by residues 618 - 625 (chain A) in PDB entry 4X7J
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 618 (chain A).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
596A ILE* 3.0 18.9 - - - +
609A GLU* 2.9 29.0 - - + +
610A ALA 3.6 4.3 - - - +
611A LYS* 3.1 35.3 + - - +
616A ASP 4.3 2.2 + - - -
617A CYS* 1.3 79.5 - - - +
619A TYR* 1.3 65.4 + - - +
890A LEU* 3.6 25.0 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with TYR 619 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
593A PHE* 4.1 11.0 - + - -
608A PHE 3.6 0.7 - - - +
609A GLU* 3.4 6.6 - - - +
610A ALA 2.9 33.4 + - - +
612A ASN* 3.9 4.3 - - + -
615A ASP* 2.7 34.3 + - - -
617A CYS* 3.4 35.7 - - + +
618A ASN* 1.3 76.7 - - - +
620A ALA* 1.3 60.8 + - - +
621A ILE* 3.9 7.0 + - + +
655A PHE* 3.7 43.3 - + - -
887A GLN* 3.3 40.1 + - + -
888A MET 3.5 15.0 - - - +
889A GLN* 4.6 1.6 - - - -
890A LEU* 4.1 7.9 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 620 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
599A LEU* 4.3 4.0 - - + -
607A VAL* 4.4 1.1 - - + -
608A PHE 3.5 5.2 - - - -
619A TYR* 1.3 72.2 - - - +
621A ILE* 1.3 59.6 + - - +
886A ILE 3.6 1.9 - - - +
887A GLN* 3.6 1.0 - - - -
888A MET* 2.8 40.4 + - - +
889A GLN 4.1 0.9 - - - +
890A LEU* 4.1 10.9 - - + +
1101A 3Z1 3.4 55.5 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 621 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
589A TYR* 4.4 10.8 - - + -
593A PHE* 3.7 30.3 - - + -
606A VAL 3.7 0.9 - - - +
607A VAL* 3.3 2.1 - - - -
608A PHE* 2.8 49.0 + - + +
610A ALA* 4.2 15.3 - - + -
619A TYR* 4.1 9.6 - - + +
620A ALA* 1.3 73.6 - - - +
622A LYS* 1.3 61.4 + - - +
623A ARG 3.9 0.4 + - - +
658A TRP* 4.4 9.2 - - + -
885A TYR* 3.7 29.4 - - + -
886A ILE 3.3 9.6 - - - +
887A GLN* 3.6 31.2 - - + -
1101A 3Z1 4.1 2.2 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 622 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
602A GLY 5.9 1.3 - - - +
605A GLY* 4.6 9.0 - - - -
606A VAL 3.4 7.9 - - - +
607A VAL* 4.0 16.6 - - + -
621A ILE* 1.3 72.1 - - - +
623A ARG* 1.3 61.6 + - - +
624A ILE* 3.8 33.0 - - + -
884A LEU 3.3 2.3 - - - +
885A TYR* 3.2 5.5 - - - -
886A ILE* 2.8 44.3 + - + +
955A ASP* 2.9 35.6 + - - -
956A PHE 3.5 12.4 + - - +
957A GLY* 4.6 4.4 - - - +
1101A 3Z1 3.4 38.2 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 623 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
589A TYR* 6.0 1.8 - - - -
604A PHE 3.9 0.3 - - - +
605A GLY* 3.2 2.4 - - - -
606A VAL* 2.7 59.5 + - - +
608A PHE* 3.9 31.8 - - + -
621A ILE 3.9 1.0 + - - -
622A LYS* 1.3 71.4 - - - +
624A ILE* 1.3 60.3 + - - +
625A ARG 3.8 1.9 + - - -
883A TYR* 3.5 49.4 + - + -
884A LEU 3.5 2.2 - - - -
885A TYR* 3.3 45.0 + - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 624 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
604A PHE* 3.7 24.2 - - + -
605A GLY* 4.4 6.1 - - - +
622A LYS* 3.8 28.5 - - + -
623A ARG* 1.3 70.1 - - - +
625A ARG* 1.3 68.5 - - - +
626A LEU* 3.2 8.0 + - + +
636A VAL* 4.5 27.1 - - + -
883A TYR* 3.2 4.6 - - - -
884A LEU* 2.6 53.4 + - + +
886A ILE* 3.8 29.8 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 625 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
604A PHE* 3.1 28.1 + - + +
623A ARG 3.8 2.0 + - - -
624A ILE* 1.3 70.3 - - - +
626A LEU* 1.3 73.8 + - - +
627A PRO* 3.1 9.8 - - - +
628A ASN* 5.2 11.9 - - - +
881A LYS* 3.2 39.9 - - - +
882A VAL 3.6 9.2 - - - +
883A TYR* 3.7 31.7 + - + -
----------------------------------------------------------
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