6RG3A

Crystal structure of human carbonic anhydrase ii in complex with (r)-4-(2-benzylpiperazin-1-yl)benzenesulfonamide
Slipknot S +31
Knot core range Knot core length Knot tails range Slipknot tails range Slipknot loops range N-end length C-end length Type
view details
+31 24-257 234 258-260 1-1 2-23 1 2 slipknot
Chain Sequence
SHHWGYGKHNGPEHWHKDFPIAKGERQSPVDIDTHTAKYDPSLKPLSVSYDQATSLRILNNGHAFNVEFDDSQDKAVLKGGPLDGTYRLIQFHFHWGSLDGQGSEHTVDKKKYAAELHLVHWNTKYGDFGKAVQQPDGLAVLGIFLKVGSAKPGLQKVVDVLDSIKTKGKSADFTNFDPRGLLPESLDYWTYPGSLTTPPLLECVTWIVLKEPISVSSEQVLKFRKLNFNGEGEPEELMVDNWRPAQPLKNRQIKASFK
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
Knot core range Knot core length Knot tails range Slipknot tails range Slipknot loops range N-end length C-end length Type
+ 31 26-235 210 1-25, 236-239 25 4 knot
Fingerprint Knot forming loop Loop type
K +31 Ser2 ... His96 <->
Bridging ionZn301
<-> His119 ...
Chain closureLys261 <-> Ser2
probabilistic
K +31 Ser2 ... His94 <->
Bridging ionZn301
<-> His119 ...
Chain closureLys261 <-> Ser2
probabilistic
K +31 Ser2 ... His94 <->
Bridging ionZn301
<-> His96 ...
Chain closureLys261 <-> Ser2
probabilistic
Chain Sequence
SHHWGYGKHNGPEHWHKDFPIAKGERQSPVDIDTHTAKYDPSLKPLSVSYDQATSLRILNNGHAFNVEFDDSQDKAVLKGGPLDGTYRLIQFHFHWGSLDGQGSEHTVDKKKYAAELHLVHWNTKYGDFGKAVQQPDGLAVLGIFLKVGSAKPGLQKVVDVLDSIKTKGKSADFTNFDPRGLLPESLDYWTYPGSLTTPPLLECVTWIVLKEPISVSSEQVLKFRKLNFNGEGEPEELMVDNWRPAQPLKNRQIKASFK
Whole chain analysis
Subchain analysis 

Knotoid cutoff: 0.5


Knotoid matrix content: 1

Knot core range Knot core length Knot tails range Slipknot tails range Slipknot loops range N-end length C-end length Type
view details
2.1 26-253 228 1-25 259-259 254-258 25 1 slipknot
sequence length 259
structure length 259
publication title Sulfonamides incorporating piperazine bioisosteres as potent human carbonic anhydrase I, II, IV and IX inhibitors.
pubmed doi rcsb
molecule tags Lyase
molecule keywords Carbonic anhydrase 2
source organism Homo sapiens
total genus Genus: 78
ec nomenclature ec 4.2.1.1: Alcohol dehydrogenase.
pdb deposition date 2019-04-16
KnotProt deposition date 2020-08-04

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)
1CNWA 1CNXA 1CNYA 1EOUA 1G6VA 1HCAA 1KWQA 1KWRA 1T9NA
similar chains in the KnotProt database (40% sequence similarity)
None
similar chains in the pdb database (40% sequence similarity)

 
#similar chains in the KnotProt database (40% sequence similarity)
1CNW A; 1CNX A; 1CNY A; 1EOU A; 1G6V A; 1HCA A; 1KWQ A; 1KWR A; 1T9N A; 
#similar chains, but unknotted

#similar chains in the pdb database (40% sequence similarity)


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