Contacts of the strand formed by residues 129 - 133 (chain G) in PDB entry 6ALG
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 VAL 129 (chain G).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
76G GLU* 6.0 1.3 - - - +
84G ASN* 4.1 12.1 - - - +
109G PRO* 4.6 7.2 - - + -
110G VAL 3.9 7.4 - - - +
111G THR* 4.3 5.4 - - + +
127G GLN 3.3 6.9 + - - +
128G HIS* 1.3 98.5 + - + +
130G ILE* 1.3 64.9 + - - +
131G CYS* 4.1 5.6 - - - +
132G HIS* 3.5 35.7 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 130 (chain G).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
76G GLU* 3.3 0.3 - - - +
81G ILE* 4.3 14.9 - - + +
84G ASN* 2.6 37.8 + - + +
85G LEU* 3.7 39.0 - - + -
88G LEU* 5.0 2.9 - - + -
102G LEU* 4.4 15.7 - - + -
110G VAL* 2.9 23.1 + - + +
111G THR 3.5 22.9 - - - +
112G ALA* 3.6 13.0 - - + +
115G ILE* 5.1 1.1 - - + -
128G HIS* 3.7 11.2 - - + +
129G VAL* 1.3 77.2 - - - +
131G CYS* 1.3 75.5 + - - +
140G ILE* 5.3 0.2 - - + -
142G MET* 5.0 6.5 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with CYS 131 (chain G).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
74G VAL* 3.7 23.8 - - + -
76G GLU* 3.5 18.2 - - - +
81G ILE* 3.7 21.1 - - + -
110G VAL* 2.8 35.7 + - - +
129G VAL* 4.1 0.8 - - - +
130G ILE* 1.3 85.9 - - - +
132G HIS* 1.3 69.2 + - - +
133G LEU* 5.4 0.7 - - - -
140G ILE* 3.7 30.7 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with HIS 132 (chain G).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
74G VAL* 3.3 8.2 - - - +
75G GLN* 3.1 62.0 + - + +
76G GLU* 4.6 2.2 + - - -
108G GLY 3.9 4.9 - - - +
109G PRO* 3.5 30.9 - - + +
129G VAL* 3.5 21.9 - - + +
131G CYS* 1.3 84.6 - - - +
133G LEU* 1.3 67.4 + - - +
134G THR* 6.2 0.2 - - - -
772I SER* 5.8 4.0 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 133 (chain G).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
73G GLY 4.0 14.1 - - - +
74G VAL* 4.7 4.0 - - + -
104G LYS* 3.4 25.6 - - + +
105G SER* 3.8 11.0 - - - +
106G GLY 3.3 27.4 - - - +
107G ILE* 4.2 3.3 - - - +
108G GLY* 3.0 25.9 + - - +
110G VAL* 3.8 22.4 - - + -
131G CYS* 4.2 0.8 + - - -
132G HIS* 1.3 79.6 - - - +
134G THR* 1.3 60.9 + - - +
135G ASP 5.0 1.6 - - - +
138G ALA* 4.1 12.8 - - + +
139G SER* 4.5 0.7 - - - -
140G ILE* 4.1 32.3 - - + +
----------------------------------------------------------
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