1CNIA

X-ray crystallographic studies of engineered hydrogen bond networks in a protein-zinc binding site
Genus: 77
Alphaknot: P00918
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
view details
+31 24-253 230 1-23, 254-258 23 4 slipknot
Chain Sequence
HWGYGKHNGPEHWHKDFPIAKGERQSPVDIDTHTAKYDPSLKPLSVSYDQATSLRILNNGHAFNVEFDDSQDKAVLKGGPLDGTYRLIAFHFHWGSLDGQGSEHTVDKKKYAAELHLVHWNTKYGDFGKAVQQPDGLAVLGIFLKVGSAKPGLQKVVDVLDSIKTKGKSADFTNFDPRGLLPESLDYWTYPGSLTTPPLLECVTWIVLKEPISVSSEQVLKFRKLNFNGEGEPEELMVDNWRPAQPLKNRQIKASFK
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 5x +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 22-253 232 254-258 1-1 2-21 1 4 slipknot
Fingerprint Knot forming loop Loop type
K +31 His4 ... Val135 <->
Bridging ionHg262
<-> Gln137 ...
Chain closureLys261 <-> His4
 probabilistic
K +31 His4 ... Val135 <->
Bridging ionHg262
<-> Cys206 ...
Chain closureLys261 <-> His4
 probabilistic
K +31 His4 ... Val135 <->
Bridging ionHg262
<-> Glu205 ...
Chain closureLys261 <-> His4
 probabilistic
K +31
Chain closureHis4 <-> Lys261
... Cys206 <->
Bridging ionHg262
<-> Gln137 ... His4		 probabilistic
K +31
Chain closureHis4 <-> Lys261
... Glu205 <->
Bridging ionHg262
<-> Gln137 ... His4		 probabilistic
Chain Sequence
HWGYGKHNGPEHWHKDFPIAKGERQSPVDIDTHTAKYDPSLKPLSVSYDQATSLRILNNGHAFNVEFDDSQDKAVLKGGPLDGTYRLIAFHFHWGSLDGQGSEHTVDKKKYAAELHLVHWNTKYGDFGKAVQQPDGLAVLGIFLKVGSAKPGLQKVVDVLDSIKTKGKSADFTNFDPRGLLPESLDYWTYPGSLTTPPLLECVTWIVLKEPISVSSEQVLKFRKLNFNGEGEPEELMVDNWRPAQPLKNRQIKASFK
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
view details
3.1 26-255 230 1-25, 256-257 25 2 knot
view details
2.1 25-251 227 1-24 257-257 252-256 24 1 slipknot
sequence length 257
structure length 257
publication title X-Ray Crystallographic Studies of Engineered Hydrogen Bond Networks in a Protein-Zinc Binding Site
pubmed rcsb
molecule tags Lyase (oxo-acid)
molecule keywords CARBONIC ANHYDRASE II
source organism Homo sapiens
total genus Genus: 77
ec nomenclature ec 4.2.1.1: Carbonate dehydratase.
pdb deposition date 1995-04-03
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)
cath code
ClassArchitectureTopologyHomologyDomain
3.10.200.10 Alpha Beta Roll Carbonic Anhydrase II Carbonic Anhydrase II 1cniA00
3.10.200.10 Alpha Beta Roll Carbonic Anhydrase II Carbonic Anhydrase II 1cniA00
2IT4A 1I9MA 2WEGA 1BNVA 1CNHA 3M3XA 2NWPA 1RAZA 1BNTA 1CNWA 3M1WA 1CINA 1CAZA 2NXRA 1A42A 2FMZA 1V9IC 1Z93A 2POUA 3IBNA 3MDZA 1YDAA 1EOUA 1RZBA 3MMFA 1TE3X 2HNCA 1CAHA 3R17B 3OIMA 1HEDA 3MNUA 2NXSA 1RAYA 3ZNCA 1IF7A 2WD3A 1UGEA 1I90A 2CBBA 3HS4A 1BNWA 1LUGA 3KS3A 1H9QA 2OSFA 1BN3A 1CAMA 1FQMA 8CA2A 1T9NA 1CNIA 4CACA 1I9LA 1HEBA 1FSQA 2WEJA 1CAOA 2H15A 2NNSA 1IF8A 3N0NA 3IAIA 1BICA 2EZ7A 3D9ZA 2CABA 1G4OA 2AX2A 1BNQA 3KIGA 1BNUA 1KWQA 1CALA 1FSNA 2POVA 2NWYA 2NNVA 2CBDA 3OILA 3OKVA 3DVDA 2POWA 3DCWA 3M1JA 1FQRA 3HKNA 2HFXA 1G0EA 3MYQA 1CNYA 3M5EA 3K7KA 1I9PA 2FMGA 3C7PA 2Q38A 2F14A 2NXTA 3JXHC 1JV0A 1OKNA 1BNMA 3N4BA 3OKUA 3KONA 1CA2A 1G46A 2ABEA 1CIMA 1YO0A 2FNMA 1CVCA 1CAIA 1ZSBA 2CBEA 2FOQA 1BN1A 3D92A 2NNGA 1I9OA 3MZCA 3DVBA 1CVDA 5CACA 2VVAX 3DV7A 3M40A 3ML5A 3DAZA 1LGDA 1ZNCA 1I8ZA 1YO2A 1H4NA 2ZNCA 3M2NA 1CVAA 3D93A 1TEUX 3DCSA 3KOKA 1Y7WA 3P4VA 2X7TA 2NMXA 3K34A 1OKMA 1KOQA 3M2YA 2HFYA 1DMYA 2HD6A 1IF5A 3MNJA 1DCBA 1YO1A 2CA2A 2ILIA 1CAYA 2HFWA 1CVEA 1H9NA 3M5SA 1AM6A 1CRMA 1CNGA 1UGFA 3IBUA 1ZSCA 3LXEA 1CVBA 3IQKA 1HECA 3B1BA 3D8WA 3MHIA 2GD8A 1ZE8A 1IF6A 3EFIA 1TG3A 1KEQA 2W2JA 3M98A 1RZCA 3B4FA 1G48A 2EU2A 3DD0A 3MHMA 3HLJA 5CA2A 2Q1BA 7CA2A 3MNIA 3N2PA 1HEAA 1CILA 1MUAA 1THKA 1CRAA 3MNHA 1LZVA 1G6VA 1HCAA 1HVAA 2Q1QA 1G45A 1LG5A 1RJ6A 3MNAA 1RZAA 1I9NA 3KKXA 2X7SA 1FR7A 2CBCA 2HOCA 1AVNA 1CCSA 1G4JA 3IBLA 3DC9A 3HKTA 1V9EA 1J9WA 1G1DA 6CA2A 1FLJA 2OSMA 1YDDA 1BZMA 1RZDA 3FFPX 1UGAA 3IGPA 3N3JA 2FW4A 1FSRA 1XPZA 1CZMA 1G3ZA 1TBTX 3IEOA 2VVBX 1BV3A 1TH9A 2EU3A 1DCAA 2WEOA 1KWRA 3F7BA 3D0NA 1IF9A 1CNJA 2NN1A 3R16A 3OIKA 1CA3A 4CA2A 3HKUA 3PYKA 1URTA 3IBIA 1XQ0A 3M1QA 3F7UA 1FR4A 2CBAA 3HKQA 1G53A 1G52A 12CAA 9CA2A 3DA2A 3NJ9A 1TTMA 2WEHA 1CVFA 3CZVA 3GZ0A 3MHCA 1CNCA 1CNXA 3M5TA 3KWAA 1IF4A 2X7UA 1LG6A 3FE4A 3JXFA 1HUHA 1KOPA 2WD2A 3JXGA 1UGBA 2FNNA 1XEVA 1JD0A 1CAKA 1BNNA 1FQNA 1I91A 1CANA 1YDCA 3BL0A 1ZSAA 2GEHA 1HCBA 2NWOA 1BN4A 3MHOA 1I9QA 1HUGA 2FOSA 1XEGA 1F2WA 3M96A 3DBUA 3EFTA 2HKKA 1Z97A 3K2FA 2O4ZA 1OQ5A 3L14A 3MWOA 1CVHA 3BETA 1YDBA 3PO6A 1FQLA 2NWZA 1G0FA 1CAJA 3FW3A 3M67A 2FOUA 2AW1A 3DCCA 3HFPA 3DVCA 1RJ5A 1TG9A 2FNKA 3BL1A 2NNOA 3NI5A 1CCUA 3F8EA 3DD8A 3F4XA 1BCDA 1RZEA 2NN7A 3CA2A 3MNKA 3ML2A 1UGDA 1AZMA 4PYYA 3DC3A 1CCTA 3M2ZA 3CAJA 2HL4A 3MHLA
chains in the KnotProt database with same CATH superfamily
2IT4A 1I9MA 2WEGA 1BNVA 1CNHA 3M3XA 2NWPA 1RAZA 1BNTA 1CNWA 3M1WA 1CINA 1CAZA 2NXRA 1A42A 2FMZA 1V9IC 1Z93A 2POUA 3IBNA 3MDZA 1YDAA 1EOUA 1RZBA 3MMFA 1TE3X 2HNCA 1CAHA 3R17B 3OIMA 1HEDA 3MNUA 2NXSA 1RAYA 3ZNCA 1IF7A 2WD3A 1UGEA 1I90A 2CBBA 3HS4A 1BNWA 1LUGA 3KS3A 1H9QA 2OSFA 1BN3A 1CAMA 1FQMA 8CA2A 1T9NA 1CNIA 4CACA 1I9LA 1HEBA 1FSQA 2WEJA 1CAOA 2H15A 2NNSA 1IF8A 3N0NA 3IAIA 1BICA 2EZ7A 3D9ZA 2CABA 1G4OA 2AX2A 1BNQA 3KIGA 1BNUA 1KWQA 1CALA 1FSNA 2POVA 2NWYA 2NNVA 2CBDA 3OILA 3OKVA 3DVDA 2POWA 3DCWA 3M1JA 1FQRA 3HKNA 2HFXA 1G0EA 3MYQA 1CNYA 3M5EA 3K7KA 1I9PA 2FMGA 3C7PA 2Q38A 2F14A 2NXTA 3JXHC 1JV0A 1OKNA 1BNMA 3N4BA 3OKUA 3KONA 1CA2A 1G46A 2ABEA 1CIMA 1YO0A 2FNMA 1CVCA 1CAIA 1ZSBA 2CBEA 2FOQA 1BN1A 3D92A 2NNGA 1I9OA 3MZCA 3DVBA 1CVDA 5CACA 2VVAX 3DV7A 3M40A 3ML5A 3DAZA 1LGDA 1ZNCA 1I8ZA 1YO2A 1H4NA 2ZNCA 3M2NA 1CVAA 3D93A 1TEUX 3DCSA 3KOKA 1Y7WA 3P4VA 2X7TA 2NMXA 3K34A 1OKMA 1KOQA 3M2YA 2HFYA 1DMYA 2HD6A 1IF5A 3MNJA 1DCBA 1YO1A 2CA2A 2ILIA 1CAYA 2HFWA 1CVEA 1H9NA 3M5SA 1AM6A 1CRMA 1CNGA 1UGFA 3IBUA 1ZSCA 3LXEA 1CVBA 3IQKA 1HECA 3B1BA 3D8WA 3MHIA 2GD8A 1ZE8A 1IF6A 3EFIA 1TG3A 1KEQA 2W2JA 3M98A 1RZCA 3B4FA 1G48A 2EU2A 3DD0A 3MHMA 3HLJA 5CA2A 2Q1BA 7CA2A 3MNIA 3N2PA 1HEAA 1CILA 1MUAA 1THKA 1CRAA 3MNHA 1LZVA 1G6VA 1HCAA 1HVAA 2Q1QA 1G45A 1LG5A 1RJ6A 3MNAA 1RZAA 1I9NA 3KKXA 2X7SA 1FR7A 2CBCA 2HOCA 1AVNA 1CCSA 1G4JA 3IBLA 3DC9A 3HKTA 1V9EA 1J9WA 1G1DA 6CA2A 1FLJA 2OSMA 1YDDA 1BZMA 1RZDA 3FFPX 1UGAA 3IGPA 3N3JA 2FW4A 1FSRA 1XPZA 1CZMA 1G3ZA 1TBTX 3IEOA 2VVBX 1BV3A 1TH9A 2EU3A 1DCAA 2WEOA 1KWRA 3F7BA 3D0NA 1IF9A 1CNJA 2NN1A 3R16A 3OIKA 1CA3A 4CA2A 3HKUA 3PYKA 1URTA 3IBIA 1XQ0A 3M1QA 3F7UA 1FR4A 2CBAA 3HKQA 1G53A 1G52A 12CAA 9CA2A 3DA2A 3NJ9A 1TTMA 2WEHA 1CVFA 3CZVA 3GZ0A 3MHCA 1CNCA 1CNXA 3M5TA 3KWAA 1IF4A 2X7UA 1LG6A 3FE4A 3JXFA 1HUHA 1KOPA 2WD2A 3JXGA 1UGBA 2FNNA 1XEVA 1JD0A 1CAKA 1BNNA 1FQNA 1I91A 1CANA 1YDCA 3BL0A 1ZSAA 2GEHA 1HCBA 2NWOA 1BN4A 3MHOA 1I9QA 1HUGA 2FOSA 1XEGA 1F2WA 3M96A 3DBUA 3EFTA 2HKKA 1Z97A 3K2FA 2O4ZA 1OQ5A 3L14A 3MWOA 1CVHA 3BETA 1YDBA 3PO6A 1FQLA 2NWZA 1G0FA 1CAJA 3FW3A 3M67A 2FOUA 2AW1A 3DCCA 3HFPA 3DVCA 1RJ5A 1TG9A 2FNKA 3BL1A 2NNOA 3NI5A 1CCUA 3F8EA 3DD8A 3F4XA 1BCDA 1RZEA 2NN7A 3CA2A 3MNKA 3ML2A 1UGDA 1AZMA 4PYYA 3DC3A 1CCTA 3M2ZA 3CAJA 2HL4A 3MHLA
chains in the KnotProt database with same CATH topology
2IT4A 1I9MA 2WEGA 1BNVA 1CNHA 3M3XA 2NWPA 1RAZA 1BNTA 1CNWA 3M1WA 1CINA 1CAZA 2NXRA 1A42A 2FMZA 1V9IC 1Z93A 2POUA 3IBNA 3MDZA 1YDAA 1EOUA 1RZBA 3MMFA 1TE3X 2HNCA 1CAHA 3R17B 3OIMA 1HEDA 3MNUA 2NXSA 1RAYA 3ZNCA 1IF7A 2WD3A 1UGEA 1I90A 2CBBA 3HS4A 1BNWA 1LUGA 3KS3A 1H9QA 2OSFA 1BN3A 1CAMA 1FQMA 8CA2A 1T9NA 1CNIA 4CACA 1I9LA 1HEBA 1FSQA 2WEJA 1CAOA 2H15A 2NNSA 1IF8A 3N0NA 3IAIA 1BICA 2EZ7A 3D9ZA 2CABA 1G4OA 2AX2A 1BNQA 3KIGA 1BNUA 1KWQA 1CALA 1FSNA 2POVA 2NWYA 2NNVA 2CBDA 3OILA 3OKVA 3DVDA 2POWA 3DCWA 3M1JA 1FQRA 3HKNA 2HFXA 1G0EA 3MYQA 1CNYA 3M5EA 3K7KA 1I9PA 2FMGA 3C7PA 2Q38A 2F14A 2NXTA 3JXHC 1JV0A 1OKNA 1BNMA 3N4BA 3OKUA 3KONA 1CA2A 1G46A 2ABEA 1CIMA 1YO0A 2FNMA 1CVCA 1CAIA 1ZSBA 2CBEA 2FOQA 1BN1A 3D92A 2NNGA 1I9OA 3MZCA 3DVBA 1CVDA 5CACA 2VVAX 3DV7A 3M40A 3ML5A 3DAZA 1LGDA 1ZNCA 1I8ZA 1YO2A 1H4NA 2ZNCA 3M2NA 1CVAA 3D93A 1TEUX 3DCSA 3KOKA 1Y7WA 3P4VA 2X7TA 2NMXA 3K34A 1OKMA 1KOQA 3M2YA 2HFYA 1DMYA 2HD6A 1IF5A 3MNJA 1DCBA 1YO1A 2CA2A 2ILIA 1CAYA 2HFWA 1CVEA 1H9NA 3M5SA 1AM6A 1CRMA 1CNGA 1UGFA 3IBUA 1ZSCA 3LXEA 1CVBA 3IQKA 1HECA 3B1BA 3D8WA 3MHIA 2GD8A 1ZE8A 1IF6A 3EFIA 1TG3A 1KEQA 2W2JA 3M98A 1RZCA 3B4FA 1G48A 2EU2A 3DD0A 3MHMA 3HLJA 5CA2A 2Q1BA 7CA2A 3MNIA 3N2PA 1HEAA 1CILA 1MUAA 1THKA 1CRAA 3MNHA 1LZVA 1G6VA 1HCAA 1HVAA 2Q1QA 1G45A 1LG5A 1RJ6A 3MNAA 1RZAA 1I9NA 3KKXA 2X7SA 1FR7A 2CBCA 2HOCA 1AVNA 1CCSA 1G4JA 3IBLA 3DC9A 3HKTA 1V9EA 1J9WA 1G1DA 6CA2A 1FLJA 2OSMA 1YDDA 1BZMA 1RZDA 3FFPX 1UGAA 3IGPA 3N3JA 2FW4A 1FSRA 1XPZA 1CZMA 1G3ZA 1TBTX 3IEOA 2VVBX 1BV3A 1TH9A 2EU3A 1DCAA 2WEOA 1KWRA 3F7BA 3D0NA 1IF9A 1CNJA 2NN1A 3R16A 3OIKA 1CA3A 4CA2A 3HKUA 3PYKA 1URTA 3IBIA 1XQ0A 3M1QA 3F7UA 1FR4A 2CBAA 3HKQA 1G53A 1G52A 12CAA 9CA2A 3DA2A 3NJ9A 1TTMA 2WEHA 1CVFA 3CZVA 3GZ0A 3MHCA 1CNCA 1CNXA 3M5TA 3KWAA 1IF4A 2X7UA 1LG6A 3FE4A 3JXFA 1HUHA 1KOPA 2WD2A 3JXGA 1UGBA 2FNNA 1XEVA 1JD0A 1CAKA 1BNNA 1FQNA 1I91A 1CANA 1YDCA 3BL0A 1ZSAA 2GEHA 1HCBA 2NWOA 1BN4A 3MHOA 1I9QA 1HUGA 2FOSA 1XEGA 1F2WA 3M96A 3DBUA 3EFTA 2HKKA 1Z97A 3K2FA 2O4ZA 1OQ5A 3L14A 3MWOA 1CVHA 3BETA 1YDBA 3PO6A 1FQLA 2NWZA 1G0FA 1CAJA 3FW3A 3M67A 2FOUA 2AW1A 3DCCA 3HFPA 3DVCA 1RJ5A 1TG9A 2FNKA 3BL1A 2NNOA 3NI5A 1CCUA 3F8EA 3DD8A 3F4XA 1BCDA 1RZEA 2NN7A 3CA2A 3MNKA 3ML2A 1UGDA 1AZMA 3DC3A 1CCTA 3M2ZA 3CAJA 2HL4A 3MHLA
chains in the KnotProt database with same CATH homology

  
#chains in the KnotProt database with same CATH superfamily
 2IT4 A;  1I9M A;  2WEG A;  1BNV A;  1CNH A;  3M3X A;  2NWP A;  1RAZ A;  1BNT A;  1CNW A;  3M1W A;  1CIN A;  1CAZ A;  2NXR A;  1A42 A;  2FMZ A;  1V9I C;  1Z93 A;  2POU A;  3IBN A;  3MDZ A;  1YDA A;  1EOU A;  1RZB A;  3MMF A;  1TE3 X;  2HNC A;  1CAH A;  3R17 B;  3OIM A;  1HED A;  3MNU A;  2NXS A;  1RAY A;  3ZNC A;  1IF7 A;  2WD3 A;  1UGE A;  1I90 A;  2CBB A;  3HS4 A;  1BNW A;  1LUG A;  3KS3 A;  1H9Q A;  2OSF A;  1BN3 A;  1CAM A;  1FQM A;  8CA2 A;  1T9N A;  1CNI A;  4CAC A;  1I9L A;  1HEB A;  1FSQ A;  2WEJ A;  1CAO A;  2H15 A;  2NNS A;  1IF8 A;  3N0N A;  3IAI A;  1BIC A;  2EZ7 A;  3D9Z A;  2CAB A;  1G4O A;  2AX2 A;  1BNQ A;  3KIG A;  1BNU A;  1KWQ A;  1CAL A;  1FSN A;  2POV A;  2NWY A;  2NNV A;  2CBD A;  3OIL A;  3OKV A;  3DVD A;  2POW A;  3DCW A;  3M1J A;  1FQR A;  3HKN A;  2HFX A;  1G0E A;  3MYQ A;  1CNY A;  3M5E A;  3K7K A;  1I9P A;  2FMG A;  3C7P A;  2Q38 A;  2F14 A;  2NXT A;  3JXH C;  1JV0 A;  1OKN A;  1BNM A;  3N4B A;  3OKU A;  3KON A;  1CA2 A;  1G46 A;  2ABE A;  1CIM A;  1YO0 A;  2FNM A;  1CVC A;  1CAI A;  1ZSB A;  2CBE A;  2FOQ A;  1BN1 A;  3D92 A;  2NNG A;  1I9O A;  3MZC A;  3DVB A;  1CVD A;  5CAC A;  2VVA X;  3DV7 A;  3M40 A;  3ML5 A;  3DAZ A;  1LGD A;  1ZNC A;  1I8Z A;  1YO2 A;  1H4N A;  2ZNC A;  3M2N A;  1CVA A;  3D93 A;  1TEU X;  3DCS A;  3KOK A;  1Y7W A;  3P4V A;  2X7T A;  2NMX A;  3K34 A;  1OKM A;  1KOQ A;  3M2Y A;  2HFY A;  1DMY A;  2HD6 A;  1IF5 A;  3MNJ A;  1DCB A;  1YO1 A;  2CA2 A;  2ILI A;  1CAY A;  2HFW A;  1CVE A;  1H9N A;  3M5S A;  1AM6 A;  1CRM A;  1CNG A;  1UGF A;  3IBU A;  1ZSC A;  3LXE A;  1CVB A;  3IQK A;  1HEC A;  3B1B A;  3D8W A;  3MHI A;  2GD8 A;  1ZE8 A;  1IF6 A;  3EFI A;  1TG3 A;  1KEQ A;  2W2J A;  3M98 A;  1RZC A;  3B4F A;  1G48 A;  2EU2 A;  3DD0 A;  3MHM A;  3HLJ A;  5CA2 A;  2Q1B A;  7CA2 A;  3MNI A;  3N2P A;  1HEA A;  1CIL A;  1MUA A;  1THK A;  1CRA A;  3MNH A;  1LZV A;  1G6V A;  1HCA A;  1HVA A;  2Q1Q A;  1G45 A;  1LG5 A;  1RJ6 A;  3MNA A;  1RZA A;  1I9N A;  3KKX A;  2X7S A;  1FR7 A;  2CBC A;  2HOC A;  1AVN A;  1CCS A;  1G4J A;  3IBL A;  3DC9 A;  3HKT A;  1V9E A;  1J9W A;  1G1D A;  6CA2 A;  1FLJ A;  2OSM A;  1YDD A;  1BZM A;  1RZD A;  3FFP X;  1UGA A;  3IGP A;  3N3J A;  2FW4 A;  1FSR A;  1XPZ A;  1CZM A;  1G3Z A;  1TBT X;  3IEO A;  2VVB X;  1BV3 A;  1TH9 A;  2EU3 A;  1DCA A;  2WEO A;  1KWR A;  3F7B A;  3D0N A;  1IF9 A;  1CNJ A;  2NN1 A;  3R16 A;  3OIK A;  1CA3 A;  4CA2 A;  3HKU A;  3PYK A;  1URT A;  3IBI A;  1XQ0 A;  3M1Q A;  3F7U A;  1FR4 A;  2CBA A;  3HKQ A;  1G53 A;  1G52 A;  12CA A;  9CA2 A;  3DA2 A;  3NJ9 A;  1TTM A;  2WEH A;  1CVF A;  3CZV A;  3GZ0 A;  3MHC A;  1CNC A;  1CNX A;  3M5T A;  3KWA A;  1IF4 A;  2X7U A;  1LG6 A;  3FE4 A;  3JXF A;  1HUH A;  1KOP A;  2WD2 A;  3JXG A;  1UGB A;  2FNN A;  1XEV A;  1JD0 A;  1CAK A;  1BNN A;  1FQN A;  1I91 A;  1CAN A;  1YDC A;  3BL0 A;  1ZSA A;  2GEH A;  1HCB A;  2NWO A;  1BN4 A;  3MHO A;  1I9Q A;  1HUG A;  2FOS A;  1XEG A;  1F2W A;  3M96 A;  3DBU A;  3EFT A;  2HKK A;  1Z97 A;  3K2F A;  2O4Z A;  1OQ5 A;  3L14 A;  3MWO A;  1CVH A;  3BET A;  1YDB A;  3PO6 A;  1FQL A;  2NWZ A;  1G0F A;  1CAJ A;  3FW3 A;  3M67 A;  2FOU A;  2AW1 A;  3DCC A;  3HFP A;  3DVC A;  1RJ5 A;  1TG9 A;  2FNK A;  3BL1 A;  2NNO A;  3NI5 A;  1CCU A;  3F8E A;  3DD8 A;  3F4X A;  1BCD A;  1RZE A;  2NN7 A;  3CA2 A;  3MNK A;  3ML2 A;  1UGD A;  1AZM A;  4PYY A;  3DC3 A;  1CCT A;  3M2Z A;  3CAJ A;  2HL4 A;  3MHL A; 
#chains in the KnotProt database with same CATH topology
 2IT4 A;  1I9M A;  2WEG A;  1BNV A;  1CNH A;  3M3X A;  2NWP A;  1RAZ A;  1BNT A;  1CNW A;  3M1W A;  1CIN A;  1CAZ A;  2NXR A;  1A42 A;  2FMZ A;  1V9I C;  1Z93 A;  2POU A;  3IBN A;  3MDZ A;  1YDA A;  1EOU A;  1RZB A;  3MMF A;  1TE3 X;  2HNC A;  1CAH A;  3R17 B;  3OIM A;  1HED A;  3MNU A;  2NXS A;  1RAY A;  3ZNC A;  1IF7 A;  2WD3 A;  1UGE A;  1I90 A;  2CBB A;  3HS4 A;  1BNW A;  1LUG A;  3KS3 A;  1H9Q A;  2OSF A;  1BN3 A;  1CAM A;  1FQM A;  8CA2 A;  1T9N A;  1CNI A;  4CAC A;  1I9L A;  1HEB A;  1FSQ A;  2WEJ A;  1CAO A;  2H15 A;  2NNS A;  1IF8 A;  3N0N A;  3IAI A;  1BIC A;  2EZ7 A;  3D9Z A;  2CAB A;  1G4O A;  2AX2 A;  1BNQ A;  3KIG A;  1BNU A;  1KWQ A;  1CAL A;  1FSN A;  2POV A;  2NWY A;  2NNV A;  2CBD A;  3OIL A;  3OKV A;  3DVD A;  2POW A;  3DCW A;  3M1J A;  1FQR A;  3HKN A;  2HFX A;  1G0E A;  3MYQ A;  1CNY A;  3M5E A;  3K7K A;  1I9P A;  2FMG A;  3C7P A;  2Q38 A;  2F14 A;  2NXT A;  3JXH C;  1JV0 A;  1OKN A;  1BNM A;  3N4B A;  3OKU A;  3KON A;  1CA2 A;  1G46 A;  2ABE A;  1CIM A;  1YO0 A;  2FNM A;  1CVC A;  1CAI A;  1ZSB A;  2CBE A;  2FOQ A;  1BN1 A;  3D92 A;  2NNG A;  1I9O A;  3MZC A;  3DVB A;  1CVD A;  5CAC A;  2VVA X;  3DV7 A;  3M40 A;  3ML5 A;  3DAZ A;  1LGD A;  1ZNC A;  1I8Z A;  1YO2 A;  1H4N A;  2ZNC A;  3M2N A;  1CVA A;  3D93 A;  1TEU X;  3DCS A;  3KOK A;  1Y7W A;  3P4V A;  2X7T A;  2NMX A;  3K34 A;  1OKM A;  1KOQ A;  3M2Y A;  2HFY A;  1DMY A;  2HD6 A;  1IF5 A;  3MNJ A;  1DCB A;  1YO1 A;  2CA2 A;  2ILI A;  1CAY A;  2HFW A;  1CVE A;  1H9N A;  3M5S A;  1AM6 A;  1CRM A;  1CNG A;  1UGF A;  3IBU A;  1ZSC A;  3LXE A;  1CVB A;  3IQK A;  1HEC A;  3B1B A;  3D8W A;  3MHI A;  2GD8 A;  1ZE8 A;  1IF6 A;  3EFI A;  1TG3 A;  1KEQ A;  2W2J A;  3M98 A;  1RZC A;  3B4F A;  1G48 A;  2EU2 A;  3DD0 A;  3MHM A;  3HLJ A;  5CA2 A;  2Q1B A;  7CA2 A;  3MNI A;  3N2P A;  1HEA A;  1CIL A;  1MUA A;  1THK A;  1CRA A;  3MNH A;  1LZV A;  1G6V A;  1HCA A;  1HVA A;  2Q1Q A;  1G45 A;  1LG5 A;  1RJ6 A;  3MNA A;  1RZA A;  1I9N A;  3KKX A;  2X7S A;  1FR7 A;  2CBC A;  2HOC A;  1AVN A;  1CCS A;  1G4J A;  3IBL A;  3DC9 A;  3HKT A;  1V9E A;  1J9W A;  1G1D A;  6CA2 A;  1FLJ A;  2OSM A;  1YDD A;  1BZM A;  1RZD A;  3FFP X;  1UGA A;  3IGP A;  3N3J A;  2FW4 A;  1FSR A;  1XPZ A;  1CZM A;  1G3Z A;  1TBT X;  3IEO A;  2VVB X;  1BV3 A;  1TH9 A;  2EU3 A;  1DCA A;  2WEO A;  1KWR A;  3F7B A;  3D0N A;  1IF9 A;  1CNJ A;  2NN1 A;  3R16 A;  3OIK A;  1CA3 A;  4CA2 A;  3HKU A;  3PYK A;  1URT A;  3IBI A;  1XQ0 A;  3M1Q A;  3F7U A;  1FR4 A;  2CBA A;  3HKQ A;  1G53 A;  1G52 A;  12CA A;  9CA2 A;  3DA2 A;  3NJ9 A;  1TTM A;  2WEH A;  1CVF A;  3CZV A;  3GZ0 A;  3MHC A;  1CNC A;  1CNX A;  3M5T A;  3KWA A;  1IF4 A;  2X7U A;  1LG6 A;  3FE4 A;  3JXF A;  1HUH A;  1KOP A;  2WD2 A;  3JXG A;  1UGB A;  2FNN A;  1XEV A;  1JD0 A;  1CAK A;  1BNN A;  1FQN A;  1I91 A;  1CAN A;  1YDC A;  3BL0 A;  1ZSA A;  2GEH A;  1HCB A;  2NWO A;  1BN4 A;  3MHO A;  1I9Q A;  1HUG A;  2FOS A;  1XEG A;  1F2W A;  3M96 A;  3DBU A;  3EFT A;  2HKK A;  1Z97 A;  3K2F A;  2O4Z A;  1OQ5 A;  3L14 A;  3MWO A;  1CVH A;  3BET A;  1YDB A;  3PO6 A;  1FQL A;  2NWZ A;  1G0F A;  1CAJ A;  3FW3 A;  3M67 A;  2FOU A;  2AW1 A;  3DCC A;  3HFP A;  3DVC A;  1RJ5 A;  1TG9 A;  2FNK A;  3BL1 A;  2NNO A;  3NI5 A;  1CCU A;  3F8E A;  3DD8 A;  3F4X A;  1BCD A;  1RZE A;  2NN7 A;  3CA2 A;  3MNK A;  3ML2 A;  1UGD A;  1AZM A;  4PYY A;  3DC3 A;  1CCT A;  3M2Z A;  3CAJ A;  2HL4 A;  3MHL A; 
#chains in the KnotProt database with same CATH homology
 2IT4 A;  1I9M A;  2WEG A;  1BNV A;  1CNH A;  3M3X A;  2NWP A;  1RAZ A;  1BNT A;  1CNW A;  3M1W A;  1CIN A;  1CAZ A;  2NXR A;  1A42 A;  2FMZ A;  1V9I C;  1Z93 A;  2POU A;  3IBN A;  3MDZ A;  1YDA A;  1EOU A;  1RZB A;  3MMF A;  1TE3 X;  2HNC A;  1CAH A;  3R17 B;  3OIM A;  1HED A;  3MNU A;  2NXS A;  1RAY A;  3ZNC A;  1IF7 A;  2WD3 A;  1UGE A;  1I90 A;  2CBB A;  3HS4 A;  1BNW A;  1LUG A;  3KS3 A;  1H9Q A;  2OSF A;  1BN3 A;  1CAM A;  1FQM A;  8CA2 A;  1T9N A;  1CNI A;  4CAC A;  1I9L A;  1HEB A;  1FSQ A;  2WEJ A;  1CAO A;  2H15 A;  2NNS A;  1IF8 A;  3N0N A;  3IAI A;  1BIC A;  2EZ7 A;  3D9Z A;  2CAB A;  1G4O A;  2AX2 A;  1BNQ A;  3KIG A;  1BNU A;  1KWQ A;  1CAL A;  1FSN A;  2POV A;  2NWY A;  2NNV A;  2CBD A;  3OIL A;  3OKV A;  3DVD A;  2POW A;  3DCW A;  3M1J A;  1FQR A;  3HKN A;  2HFX A;  1G0E A;  3MYQ A;  1CNY A;  3M5E A;  3K7K A;  1I9P A;  2FMG A;  3C7P A;  2Q38 A;  2F14 A;  2NXT A;  3JXH C;  1JV0 A;  1OKN A;  1BNM A;  3N4B A;  3OKU A;  3KON A;  1CA2 A;  1G46 A;  2ABE A;  1CIM A;  1YO0 A;  2FNM A;  1CVC A;  1CAI A;  1ZSB A;  2CBE A;  2FOQ A;  1BN1 A;  3D92 A;  2NNG A;  1I9O A;  3MZC A;  3DVB A;  1CVD A;  5CAC A;  2VVA X;  3DV7 A;  3M40 A;  3ML5 A;  3DAZ A;  1LGD A;  1ZNC A;  1I8Z A;  1YO2 A;  1H4N A;  2ZNC A;  3M2N A;  1CVA A;  3D93 A;  1TEU X;  3DCS A;  3KOK A;  1Y7W A;  3P4V A;  2X7T A;  2NMX A;  3K34 A;  1OKM A;  1KOQ A;  3M2Y A;  2HFY A;  1DMY A;  2HD6 A;  1IF5 A;  3MNJ A;  1DCB A;  1YO1 A;  2CA2 A;  2ILI A;  1CAY A;  2HFW A;  1CVE A;  1H9N A;  3M5S A;  1AM6 A;  1CRM A;  1CNG A;  1UGF A;  3IBU A;  1ZSC A;  3LXE A;  1CVB A;  3IQK A;  1HEC A;  3B1B A;  3D8W A;  3MHI A;  2GD8 A;  1ZE8 A;  1IF6 A;  3EFI A;  1TG3 A;  1KEQ A;  2W2J A;  3M98 A;  1RZC A;  3B4F A;  1G48 A;  2EU2 A;  3DD0 A;  3MHM A;  3HLJ A;  5CA2 A;  2Q1B A;  7CA2 A;  3MNI A;  3N2P A;  1HEA A;  1CIL A;  1MUA A;  1THK A;  1CRA A;  3MNH A;  1LZV A;  1G6V A;  1HCA A;  1HVA A;  2Q1Q A;  1G45 A;  1LG5 A;  1RJ6 A;  3MNA A;  1RZA A;  1I9N A;  3KKX A;  2X7S A;  1FR7 A;  2CBC A;  2HOC A;  1AVN A;  1CCS A;  1G4J A;  3IBL A;  3DC9 A;  3HKT A;  1V9E A;  1J9W A;  1G1D A;  6CA2 A;  1FLJ A;  2OSM A;  1YDD A;  1BZM A;  1RZD A;  3FFP X;  1UGA A;  3IGP A;  3N3J A;  2FW4 A;  1FSR A;  1XPZ A;  1CZM A;  1G3Z A;  1TBT X;  3IEO A;  2VVB X;  1BV3 A;  1TH9 A;  2EU3 A;  1DCA A;  2WEO A;  1KWR A;  3F7B A;  3D0N A;  1IF9 A;  1CNJ A;  2NN1 A;  3R16 A;  3OIK A;  1CA3 A;  4CA2 A;  3HKU A;  3PYK A;  1URT A;  3IBI A;  1XQ0 A;  3M1Q A;  3F7U A;  1FR4 A;  2CBA A;  3HKQ A;  1G53 A;  1G52 A;  12CA A;  9CA2 A;  3DA2 A;  3NJ9 A;  1TTM A;  2WEH A;  1CVF A;  3CZV A;  3GZ0 A;  3MHC A;  1CNC A;  1CNX A;  3M5T A;  3KWA A;  1IF4 A;  2X7U A;  1LG6 A;  3FE4 A;  3JXF A;  1HUH A;  1KOP A;  2WD2 A;  3JXG A;  1UGB A;  2FNN A;  1XEV A;  1JD0 A;  1CAK A;  1BNN A;  1FQN A;  1I91 A;  1CAN A;  1YDC A;  3BL0 A;  1ZSA A;  2GEH A;  1HCB A;  2NWO A;  1BN4 A;  3MHO A;  1I9Q A;  1HUG A;  2FOS A;  1XEG A;  1F2W A;  3M96 A;  3DBU A;  3EFT A;  2HKK A;  1Z97 A;  3K2F A;  2O4Z A;  1OQ5 A;  3L14 A;  3MWO A;  1CVH A;  3BET A;  1YDB A;  3PO6 A;  1FQL A;  2NWZ A;  1G0F A;  1CAJ A;  3FW3 A;  3M67 A;  2FOU A;  2AW1 A;  3DCC A;  3HFP A;  3DVC A;  1RJ5 A;  1TG9 A;  2FNK A;  3BL1 A;  2NNO A;  3NI5 A;  1CCU A;  3F8E A;  3DD8 A;  3F4X A;  1BCD A;  1RZE A;  2NN7 A;  3CA2 A;  3MNK A;  3ML2 A;  1UGD A;  1AZM A;  3DC3 A;  1CCT A;  3M2Z A;  3CAJ A;  2HL4 A;  3MHL A;
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similar chains in the KnotProt database (?% sequence similarity)
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similar chains in the pdb database (?% sequence similarity)

  
#similar chains in the KnotProt database (?% sequence similarity)
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#similar chains, but unknotted
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