Contacts of the helix formed by residues 653 - 657 (chain A) in PDB entry 5M64
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 THR 653 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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492A THR* 3.8 32.1 + - + +
493A ASN* 3.9 12.6 - - + +
601A MET* 3.5 20.7 - - - +
602A GLY 4.1 2.6 + - - -
603A HIS* 3.5 25.0 - - - +
651A ALA 3.9 0.4 + - - -
652A ASN* 1.3 94.2 + - - +
654A ASP* 1.3 64.5 + - + +
656A GLN* 3.1 12.9 + - - +
657A TYR* 3.3 11.6 + - - +
667A ARG* 6.1 0.9 - - - +
807A ALA* 5.7 4.9 - - + -
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Residues in contact with ASP 654 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
649A ASN 4.9 0.5 - - - +
652A ASN* 2.9 32.2 + - - +
653A THR* 1.3 80.0 - - + +
655A SER* 1.3 74.3 + - - -
657A TYR* 3.3 21.6 + - - +
798A HIS* 4.5 1.9 - - - -
803A PRO* 3.5 48.4 - - + +
804A GLU* 4.1 14.9 + - - +
807A ALA* 5.0 8.1 - - + -
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Residues in contact with SER 655 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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597A LYS* 5.4 1.2 - - - -
649A ASN* 3.1 20.6 + - - -
650A LEU* 3.5 24.9 - - - -
652A ASN 3.4 1.5 + - - -
653A THR 3.3 0.6 - - - -
654A ASP* 1.3 89.7 + - - +
656A GLN* 1.3 65.2 + - - +
657A TYR 3.4 2.0 + - - -
658A LEU 4.8 0.7 + - - +
803A PRO* 5.2 4.1 - - - +
1058A THR* 4.7 15.4 - - - +
87F LYS* 5.3 10.5 + - - -
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Residues in contact with GLN 656 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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597A LYS* 3.1 35.5 + - + +
598A ALA* 5.1 11.9 - - + +
601A MET* 4.6 20.4 - - + +
650A LEU* 3.0 26.2 + - - +
651A ALA 3.4 7.3 + - - -
652A ASN 2.3 35.1 + - - +
653A THR 3.1 10.4 + - - +
654A ASP 3.1 0.8 - - - -
655A SER* 1.3 85.7 - - - +
657A TYR* 1.3 61.8 + - - +
658A LEU 3.2 11.1 + - - +
659A THR* 4.8 0.7 + - - -
666A VAL* 5.2 6.2 - - - +
1082B HIS* 3.4 26.6 + - + -
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Residues in contact with TYR 657 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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653A THR 3.3 5.7 + - - +
654A ASP* 3.3 19.3 + - - +
655A SER 3.4 0.8 - - - -
656A GLN* 1.3 78.8 - - - +
658A LEU* 1.3 60.9 + - + +
659A THR 4.1 0.2 - - - -
665A PRO* 3.5 45.1 - - + +
666A VAL* 3.8 10.5 + - - +
667A ARG* 3.7 39.0 - - + -
787A GLY 5.7 0.3 + - - -
794A VAL* 3.2 38.3 - - + +
795A HIS* 3.7 18.6 + + - +
798A HIS* 3.8 44.6 - + + -
803A PRO* 5.5 0.9 - - + +
806A ALA* 5.7 5.2 - - + -
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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