4KP5A

Crystal structure of catalytic domain of human carbonic anhydrase isozyme xii with 2-chloro-4-[(pyrimidin-2-ylsulfanyl)acetyl]benzenesulfonamide
Genus: 75
Alphaknot: O43570
Knot K +31

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Knot core range Knot core length Knot tails range Slipknot tails range Slipknot loops range N-end length C-end length Type
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+31 24-257 234 1-23, 258-261 23 4 knot
Chain Sequence
KWTYFGPDGENSWSKKYPSCGGLLQSPIDLHSDILQYDASLTPLEFQGYNLSANKQFLLTNNGHSVKLNLPSDMHIQGLQSRYSATQLHLHWGNPNDPHGSEHTVSGQHFAAELHIVHYNSDLYPDASTASNKSEGLAVLAVLIEMGSFNPSYDKIFSHLQHVKYKGQEAFVPGFNIEELLPERTAEYYRYRGSLTTPPCNPTVLWTVFRNPVQISQEQLLALETALYCTHMDDPSPREMINNFRQVQKFDERLVYTSFSQ
Note, that the numbers in the matrix denote the consecutive residues in the loop, not the index of amino acids in the chain!
Knot K 3x +31

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Knot core range Knot core length Knot tails range Slipknot tails range Slipknot loops range N-end length C-end length Type
+ 31 24-235 212 1-23, 236-239 23 4 knot
Fingerprint Knot forming loop Loop type
K +31
Chain closureLys3 <-> Gln263
... His117 <->
Bridging ionZn301
<-> His93 ... Lys3		 probabilistic
K +31
Chain closureLys3 <-> Gln263
... His117 <->
Bridging ionZn301
<-> His91 ... Lys3		 probabilistic
K +31
Chain closureLys3 <-> Gln263
... His93 <->
Bridging ionZn301
<-> His91 ... Lys3		 probabilistic
Chain Sequence
KWTYFGPDGENSWSKKYPSCGGLLQSPIDLHSDILQYDASLTPLEFQGYNLSANKQFLLTNNGHSVKLNLPSDMHIQGLQSRYSATQLHLHWGNPNDPHGSEHTVSGQHFAAELHIVHYNSDLYPDASTASNKSEGLAVLAVLIEMGSFNPSYDKIFSHLQHVKYKGQEAFVPGFNIEELLPERTAEYYRYRGSLTTPPCNPTVLWTVFRNPVQISQEQLLALETALYCTHMDDPSPREMINNFRQVQKFDERLVYTSFSQ
Whole chain analysis

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Subchain analysis 

Knotoid cutoff: 0.5


Knotoid matrix content: 1


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Knot core range Knot core length Knot tails range Slipknot tails range Slipknot loops range N-end length C-end length Type
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3.1 26-259 234 1-25, 260-261 25 2 knot
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2.1 24-254 231 1-23 260-261 255-259 23 2 slipknot
sequence length 261
structure length 261
publication title Benzenesulfonamides with pyrimidine moiety as inhibitors of human carbonic anhydrases I, II, VI, VII, XII, and XIII
pubmed doi rcsb
molecule tags Lyase/lyase inhibitor
molecule keywords Carbonic anhydrase 12
source organism Homo sapiens
total genus Genus: 75
ec nomenclature ec 4.2.1.1: Carbonate dehydratase.
pdb deposition date 2013-05-13
KnotProt deposition date 2018-10-20

pfam database annotations

chain Pfam Accession Code Pfam Family Identifier Pfam Description
A PF00194 Carb_anhydrase Eukaryotic-type carbonic anhydrase
Image from the rcsb pdb (www.rcsb.org)
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similar chains in the KnotProt database (?% sequence similarity)
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similar chains in the pdb database (?% sequence similarity)

  
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How to cite
KnotProt | Interdisciplinary Laboratory of Biological Systems Modelling