Contacts of the strand formed by residues 973 - 978 (chain B) in PDB entry 3I8E
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 973 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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968B ALA* 3.4 5.0 - - - -
969B GLU* 2.9 56.5 + - - +
971B ALA* 3.6 3.2 - - - +
972B PHE* 1.3 76.5 - - - +
974B LEU* 1.3 63.7 + - - +
975B PHE* 4.3 1.8 + - - -
998B PHE 3.5 7.6 - - - +
999B HIS* 2.6 38.1 + - - +
1000B LEU 4.2 0.4 - - - +
1076B PHE* 3.7 21.4 - - + -
1077B HIS 2.9 31.7 + - - +
1078B THR* 3.5 10.3 - - - +
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Residues in contact with LEU 974 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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6B VAL* 4.3 22.9 - - + -
966B LEU* 4.3 2.9 - - + -
967B GLY 3.4 14.1 - - - +
968B ALA* 4.0 4.5 - - + -
973B ASN* 1.3 80.1 - - - +
975B PHE* 1.3 62.3 + - - +
997B LEU* 3.5 2.6 - - - -
998B PHE* 2.8 39.9 + - + +
1000B LEU* 3.7 43.3 - - + +
1002B GLU 5.7 0.2 - - - +
1004B VAL* 3.9 16.2 - - + -
1007B PHE* 4.3 8.5 - - + -
1030B PHE* 4.7 5.2 - - + -
1040B VAL* 4.5 11.9 - - + -
1076B PHE* 4.6 1.2 - - - -
1088B PHE* 3.9 15.1 - - + -
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Residues in contact with PHE 975 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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929B SER* 4.8 2.7 - - - -
930B VAL* 4.6 9.2 - - + -
948B ASP* 4.1 2.7 - - - -
952B ASN* 3.3 32.5 - - + -
954B MET* 3.5 33.2 - - + -
965B PHE 3.7 0.8 - - - +
966B LEU* 3.5 6.0 - - - +
967B GLY* 2.9 52.4 + - - -
968B ALA 3.8 7.2 - - - -
969B GLU* 4.6 4.7 - - + -
973B ASN 4.5 5.4 - - - -
974B LEU* 1.3 77.0 - - - +
976B VAL* 1.3 65.2 + - - +
977B CYS* 3.7 23.1 - - + -
994B GLU* 3.5 14.4 - - - +
996B GLY 2.9 10.8 - - - +
997B LEU* 4.5 14.4 - - + -
1076B PHE* 4.5 7.2 - + + -
1088B PHE* 4.4 0.2 - - - -
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Residues in contact with VAL 976 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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2B SER* 4.0 5.8 - - - +
4B ASN* 3.5 23.8 - - - +
960B LEU* 4.4 9.2 - - + -
964B ASN* 3.8 34.8 - - + +
965B PHE 3.4 6.7 - - - +
966B LEU* 5.0 2.2 - - + -
975B PHE* 1.3 76.1 - - - +
977B CYS* 1.3 70.8 + - - +
994B GLU* 3.6 3.5 - - - +
995B VAL* 3.1 39.4 + - + -
996B GLY* 2.7 12.9 + - - +
1088B PHE* 3.5 25.8 - - + -
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Residues in contact with CYS 977 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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930B VAL* 4.7 5.4 - - + -
948B ASP* 3.2 32.5 - - - -
963B ASP 3.4 1.0 - - - +
964B ASN* 3.3 2.6 - - - -
965B PHE* 2.7 49.9 + - + +
975B PHE* 3.7 15.5 - - - -
976B VAL* 1.3 82.1 - - - +
978B GLN* 1.3 60.3 + - - +
992B LEU* 3.6 20.0 - - + -
993B GLN 3.7 4.9 - - - +
994B GLU* 3.7 16.8 - - - -
995B VAL* 4.3 2.0 - - - -
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Residues in contact with GLN 978 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1B MET* 3.7 48.4 - - - +
2B SER 4.1 0.2 - - - +
963B ASP* 3.2 18.4 - - + +
964B ASN* 3.4 26.0 + - - +
965B PHE* 5.3 0.4 - - - -
977B CYS* 1.3 72.5 - - - +
979B LYS* 1.3 73.4 + - - +
980B ASP* 3.6 0.3 + - - -
992B LEU* 3.3 6.9 - - - +
993B GLN* 3.3 26.1 + - + +
995B VAL* 3.2 38.3 - - + +
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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
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Atomic class I II III IV V VI VII VIII
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I (Hydrophilic) + + + - + + + +
II (Acceptor) + - + - + + + -
III (Donor) + + - - + + - +
IV (Hydrophobic) - - - + + + + +
V (Aromatic) + + + + + + + +
VI (Neutral) + + + + + + + +
VII (Neutral-donor) + + - + + + - +
VIII (Neutral-acceptor) + - + + + + + -
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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