6RHJA

Crystal structure of human carbonic anhydrase isozyme ii with 4-(4-benzyl-1,4-diazepane-1-carbonyl)benzenesulfonamide
Knot K +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 24-254 231 1-23, 255-258 23 4 knot
Chain Sequence
HWGYGKHNGPEHWHKDFPIAKGERQSPVDIDTHTAKYDPSLKPLSVSYDQATSLRILNNGHAFNVEFDDSQDKAVLKGGPLDGTYRLIQFHFHWGSLDGQGSEHTVDKKKYAAELHLVHWNTKYGDFGKAVQQPDGLAVLGIFLKVGSAKPGLQKVVDVLDSIKTKGKSADFTNFDPRGLLPESLDYWTYPGSLTTPPLLECVTWIVLKEPISVSSEQVLKFRKLNFNGEGEPEELMVDNWRPAQPLKNRQIKASFK
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 23-233 211 1-22, 234-237 22 4 knot
Fingerprint Knot forming loop Loop type
K +31 His4 ... His96 <->
Bridging ionZn301
<-> His119 ...
Chain closureLys261 <-> His4
probabilistic
K +31 His4 ... His94 <->
Bridging ionZn301
<-> His96 ...
Chain closureLys261 <-> His4
probabilistic
K +31 His4 ... His94 <->
Bridging ionZn301
<-> His119 ...
Chain closureLys261 <-> His4
probabilistic
Chain Sequence
HWGYGKHNGPEHWHKDFPIAKGERQSPVDIDTHTAKYDPSLKPLSVSYDQATSLRILNNGHAFNVEFDDSQDKAVLKGGPLDGTYRLIQFHFHWGSLDGQGSEHTVDKKKYAAELHLVHWNTKYGDFGKAVQQPDGLAVLGIFLKVGSAKPGLQKVVDVLDSIKTKGKSADFTNFDPRGLLPESLDYWTYPGSLTTPPLLECVTWIVLKEPISVSSEQVLKFRKLNFNGEGEPEELMVDNWRPAQPLKNRQIKASFK
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 24-251 228 1-23 257-257 252-256 23 1 slipknot
view details
1.1 29-251 223 1-23, 256-257 24-28, 252-255 23 2 slipknot
view details
2.1 30-254 225 255-257 1-24 25-29 24 2 slipknot
sequence length 257
structure length 257
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 2019-04-21
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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