3SAXA

Crystal structure of human carbonic anhydrase isozyme ii with 2-chloro-5-{[(5-ethyl-2-pyrimidinyl)sulfanyl]acetyl}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 25-255 231 1-24, 256-259 24 4 knot
Chain Sequence
HHWGYGKHNGPEHWHKDFPIAKGERQSPVDIDTHTAKYDPSLKPLSVSYDQATSLRILNNGHAFNVEFDDSQDKAVLKGGPLDGTYRLIQFHFHWGSLDGQGSEHTVDKKKYAAELHLVHWNTKYGDFGKAVQQPDGLAVLGIFLKVGSAKPGLQKVVDVLDSIKTKGKSADFTNFDPRGLLPESLDYWTYPGSLTTPPLLECVTWIVLKEPISVSSEQVLKFRKLNFNGEGEPEELMVDNWRPAQPLKNRQIKASFK
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 21-255 235 1-20, 256-259 20 4 knot
Fingerprint Knot forming loop Loop type
K +31
Chain closureHis3 <-> Lys261
... His96 <->
Bridging ionZn262
<-> His94 ... His3
probabilistic
K +31 His3 ... His96 <->
Bridging ionZn262
<-> His119 ...
Chain closureLys261 <-> His3
probabilistic
K +31 His3 ... His94 <->
Bridging ionZn262
<-> His119 ...
Chain closureLys261 <-> His3
probabilistic
Chain Sequence
HHWGYGKHNGPEHWHKDFPIAKGERQSPVDIDTHTAKYDPSLKPLSVSYDQATSLRILNNGHAFNVEFDDSQDKAVLKGGPLDGTYRLIQFHFHWGSLDGQGSEHTVDKKKYAAELHLVHWNTKYGDFGKAVQQPDGLAVLGIFLKVGSAKPGLQKVVDVLDSIKTKGKSADFTNFDPRGLLPESLDYWTYPGSLTTPPLLECVTWIVLKEPISVSSEQVLKFRKLNFNGEGEPEELMVDNWRPAQPLKNRQIKASFK
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
3.1 26-256 231 1-25, 257-258 25 2 knot
view details
2.1 25-252 228 1-24 258-258 253-257 24 1 slipknot
sequence length 258
structure length 258
publication title Design of [(2-pyrimidinylthio)acetyl]benzenesulfonamides as inhibitors of human carbonic anhydrases.
pubmed doi rcsb
molecule tags Lyase/lyase inhibitor
molecule keywords Carbonic anhydrase 2
source organism Homo sapiens
total genus Genus: 79
ec nomenclature ec 4.2.1.1: Carbonate dehydratase.
pdb deposition date 2011-06-03
KnotProt deposition date 2018-10-17

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)


KnotProt | Interdisciplinary Laboratory of Biological Systems Modelling
Application loaded.