4QIZA

Crystal structure of human carbonic anhydrase isozyme xiii with inhibitor
Genus: 82
Alphaknot: Q8N1Q1
Slipknot S +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 23-255 233 256-258 1-1 2-22 1 2 slipknot
Chain Sequence
SWGYREHNGPIHWKEFFPIADGDQQSPIEIKTKEVKYDSSLRPLSIKYDPSSAKIISNSGHSFNVDFDDTENKSVLRGGPLTGSYRLRQVHLHWGSADDHGSEHIVDGVSYAAELHVVHWNSDKYPSFVEAAHEPDGLAVLGVFLQIGEPNSQLQKITDTLDSIKEKGKQTRFTNFDLLSLLPPSWDYWTYPGSLTVPPLLESVTWIVLKQPINISSQQLAKFRSLLCTAEGEAAAFLVSNHRPPQPLKGRKVRASFH
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 23-255 233 1-22, 256-258 22 3 knot
Fingerprint Knot forming loop Loop type
K +31
Chain closureSer6 <-> His263
... His98 <->
Bridging ionZn301
<-> His96 ... Ser6		 probabilistic
K +31
Chain closureSer6 <-> His263
... His121 <->
Bridging ionZn301
<-> His96 ... Ser6		 probabilistic
K +31
Chain closureSer6 <-> His263
... His121 <->
Bridging ionZn301
<-> His98 ... Ser6		 probabilistic
Chain Sequence
SWGYREHNGPIHWKEFFPIADGDQQSPIEIKTKEVKYDSSLRPLSIKYDPSSAKIISNSGHSFNVDFDDTENKSVLRGGPLTGSYRLRQVHLHWGSADDHGSEHIVDGVSYAAELHVVHWNSDKYPSFVEAAHEPDGLAVLGVFLQIGEPNSQLQKITDTLDSIKEKGKQTRFTNFDLLSLLPPSWDYWTYPGSLTVPPLLESVTWIVLKQPINISSQQLAKFRSLLCTAEGEAAAFLVSNHRPPQPLKGRKVRASFH
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 25-256 232 1-24, 257-258 24 2 knot
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2.1 24-252 229 1-23 257-258 253-256 23 2 slipknot
sequence length 258
structure length 258
publication title Functionalization of Fluorinated Benzenesulfonamides and Their Inhibitory Properties toward Carbonic Anhydrases
pubmed doi rcsb
molecule tags Lyase/lyase inhibitor
molecule keywords Carbonic anhydrase 13
source organism Homo sapiens
total genus Genus: 82
ec nomenclature ec 4.2.1.1: Carbonic anhydrase.
pdb deposition date 2014-06-03
KnotProt deposition date 2018-10-21

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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#similar chains, but unknotted
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How to cite
KnotProt | Interdisciplinary Laboratory of Biological Systems Modelling