#chains in the LinkProt database with same CATH superfamily
 3KDP ACD;  3KDP ABG;  1CR6 AB;  1EK2 AB;  3KDP ABH;  3KDP BCG;  3KDP ABD;  1EK1 AB;  3KDP ACG;  3KDP CDG;  3KDP CDH;  1CQZ AB;  3KDP CD;  3KDP AB;  3KDP BCH;  3KDP ABC; 
#chains in the LinkProt database with same CATH topology
 3ETD CEF;  3HPJ BDE;  3ETG BDE;  3HWX AB;  1AGB AC;  1XCB ADEF;  3H3F FGH;  3H4F ABC;  3E2H ABQ;  1ZLW HLM;  3KDP ABC;  1MV8 AC;  1OP3 HKL;  1SLV AB;  3DXA KM;  2AHR BCD;  3H9H BDF;  3ETD CD;  3DXA DE;  3DX7 AC;  2AMF ABC;  3JWN HLM;  3ETG ABD;  1XCB ABEF;  3DXA ACD;  3GDG AC;  3HWX IJ;  3FON ACP;  3HWX ABZ;  3HWX BSZ;  3ECA BCD;  2AHR ACE;  3GSU AP;  1XCB ADFG;  1XCB ACEF;  3FFC ACG;  3H9H ACE;  3N2L EFH;  3IXA AB;  3E3Q HJK;  3DXA EIJ;  3N2L DGH;  1XCB BG;  2AMF ABCD;  3N2L CEF;  3EYW AB;  3DXA FG;  3H9S CD;  3FB6 AB;  1A9B AC;  3N2L DFGH;  2AHR ABCE;  2AMF ABDE;  1ZLV KM;  1XCB BDEG;  2AMF ACD;  3FT3 AP;  3HWX AIS;  1E0J BCDE;  3GJE AHL;  3N2L ABEG;  1XCB BE;  3DXA ABC;  3H3F ABF;  3HWX IS;  3HAE JKM;  3E3Q de;  3H7B ACE;  1ZLU HKM;  1A1M ABC;  3H4H BC;  3HAE ABC;  1ZLW KLM;  3ETD ADF;  3GMD BEF;  3HAE DFG;  3E3Q BFG;  3JTT DG;  1XCB BCEG;  3JWN CGK;  3DSF HL;  1ZLU HM;  3FQR AC;  3N2L CDEH;  3G5Y AB;  1A1O AC;  3FJT AB;  3GSN HP;  3E3Q EW;  3FCS BC;  3HWX 1AR;  3FMG HL;  3N2L AD;  2AMF CD;  3E3Q HIK;  1XCB ADF;  3FFC FH;  1AGE AC;  3JWN FIK;  1O5O ACD;  3HAE HL;  3ETG CDF;  1A9B BDF;  3F7O AB;  2AMF BC;  3E3Q BCG;  1AHW DE;  1E0J ABCF;  1UT1 DE;  3EOT HL;  3GDG BC;  3GSU AB;  3ETG AD;  3GSO AP;  3HNS HL;  3GJF HL;  3FQT AB;  3HAE DE;  3ETG BCF;  1XCB ABG;  1ZLU KM;  3E3Q PRT;  3HWX 1IR;  3N2L BC;  3HAE ACL;  1O5O ABD;  3KDP ACG;  3GVP ACD;  3HG1 ABC;  3H9S ACE;  3N2L AB;  3H3F EFG;  3H3F BCD;  1A64 AB;  2AMF ACE;  3HWX 1S;  3DXA IKM;  3FRU CD;  1AFV HL;  3IXA CDF;  3HWX 1BJ;  1XCB AE;  1EK1 AB;  1A1N ABC;  3EFF AN;  1MV8 BD;  3GMD DH;  3HAE GI;  1OP5 HLM;  3FCS ABC;  3JTT AEI;  1O5O CD;  3ETG BE;  1MUU AB;  1XCB ABFG;  1E0J AB;  1ZLU KLM;  1KAH AB;  1Q8M BC;  2AMF ADE;  3FQN AC;  1A97 ACD;  3H3F BFG;  2IF0 AB;  3HAE ACG;  1CR6 AB;  2ZEJ AB;  3N2L AEF;  3ETG DE;  3E3Q CF;  3F7O BY;  3HWX 1JR;  1AGD AC;  3DX8 AB;  3HCV ABC;  3HPJ DEF;  3HNV HL;  3N2L ABCF;  3N2L GH;  3JWN IKN;  3H4F BC;  1OP3 HM;  3N2L CDEG;  3JTT DGH;  2BI4 AB;  3HWX BIS;  3JWN FGN;  1MV8 CD;  1AGB ABC;  3DXA ACJ;  3H9H ADF;  3JTT DFH;  3HWX 1RZ;  1O5O BC;  3FT3 ABP;  3HPJ DE;  3N2L ADG;  3HAE NO;  1K75 AB;  3FFC ABC;  1E0J DEF;  1XCB DE;  1XCB CD;  3FON CD;  3N2L ABCD;  1UT1 CF;  3N2L EH;  1OP5 LM;  3EFF BM;  3N2L AE;  3ETG ADF;  3H9H DF;  3HWX AS;  1A9E AB;  1AHW AF;  3HPJ AB;  1XCB BDE;  3GEF ACD;  1OP3 KM;  1ZLW HL;  3HWX BJZ;  1OM3 HL;  1A5F HL;  3HAE HO;  3HPJ ADF;  3IVK AL;  3HWX BIZ;  1ZLW LM;  3IXA ABD;  3N2L EG;  1CDC AB;  3N2L ACEG;  2VSC CD;  3JTT ACI;  1EK2 AB;  3K5S AB;  2AHR DE;  3EFD KL;  1A9B ABC;  3FQU AB;  3HAE DFI;  3FQX AB;  3ETD BCF;  3H3F CDF;  3FFC DE;  3GEF AB;  3H4H AB;  3H7B AB;  3DXA FHI;  3N2L ABDG;  3DXA AC;  1A9B DEF;  3JTT ADG;  3HWX JSZ;  3HAE LN;  3IVK ABL;  3HWX AIJ;  3GIV ADE;  3HWX SZ;  1A1M AC;  3E3Q eF;  1UT1 AD;  3KDP CDG;  1NQB AC;  3ETD AD;  1AFV KM;  3N2L BCF;  3ETG ADE;  1XCB CEG;  3H7B DE;  3H7B ABD;  1ZLV LM;  2AHR BD;  3FQW AC;  3N2L ACFG;  3HAE GT;  3IVK BH;  1XCB BCDE;  1ZLU HK;  3E3Q DHK;  1A97 ABD;  3E3Q UWX;  2VSC ACD;  3N2L ACEF;  3DX9 ACD;  3HAE ACP;  3GSW AB;  3JWN CFN;  3HWX IJZ;  3N2L EFGH;  3H9S AC;  3HG1 AB;  2AMF AB;  3HAE ACJ;  3DXA KLM;  1GME CD;  3GDG BD;  3HGM AD;  3N2L DEF;  3FOM AB;  3KDP ABD;  2AHR AE;  3JWN HIL;  2W5P AB;  1O5O ABC;  3FT4 AP;  3GMD BFH;  3HWX ASZ;  1ZLV HL;  2VSC AC;  3HWX 1AB;  1E0J BCE;  1UT1 ADE;  1OP5 HKM;  1XCB CDEG;  2AMF ABD;  3N2L ADEG;  3JTT CDI;  1MFZ AB;  3ETD CDF;  3FB5 AB;  1A97 BD;  3GIV ADF;  1XCB ABCE;  3GEF BCD;  1XCB ABDE;  2AMF BCDE;  3N2L ABD;  3N2L CEFG;  3H5A AC;  3H3F ABD;  1ZXK AB;  3HAE PQ;  1O5O BCD;  3GSV AP;  3DX9 AB;  1XCB AEF;  3GSN AHP;  1OM3 HLM;  3N2L CDF;  3GJE AH;  1AGC AB;  3GIV DF;  1XCB AB;  3JTT AEG;  1MUU ABCD;  3DO6 AB;  2AMF AD;  3ETD BEF;  3HAE AB;  3JWN IKL;  3FB7 AB;  3DX6 AB;  3ETD ABF;  3H5A ACD;  3FRU ABD;  1ZLW HKLM;  3N2L ADEH;  3JTT DE;  3DXA ACH;  1A97 AB;  3H4F AC;  3N2L ACDF;  3DXA IJ;  1AGD ABC;  3GSX AP;  3IGA AB;  3IXA ACD;  3H3F EGH;  3E3Q cef;  3E3Q aZ;  3N2L BCDG;  3JTT GH;  3EFD HL;  3DX7 ABC;  2AHR BDE;  1E0J BEF;  1ZLV HKM;  3E3Q RS;  3N2L DEFH;  3JTT AB;  3DXA KMO;  1E0J CF;  1OP3 LM;  3GJF DF;  3H9H ABC;  1E0J DE;  1MUU ACD;  3GMD BDF;  1OP5 HL;  1MUU ABD;  3HWX 1BZ;  3GSN AB;  1MV8 BCD;  2AMF CDE;  3JWN HMN;  3FRU ABC;  3JTT CDG;  3ETD DE;  3HAE GJK;  1A8J HL;  3FFC CFH;  1XCB DEF;  3HWX 1RS;  1XCB CDF;  3HAE IK;  1E0J BF;  3N2L ABCE;  1O5O ABCD;  3E3Q UVX;  3JTT EFH;  3JTT DEG;  3N2L ABEH;  1A97 ABC;  3HPJ ACE;  3GSV AB;  2VSC BCD;  3ETG BCE;  3DXA JKM;  1A1N AB;  3N2L DEFG;  3H9H DEF;  3GB7 AB;  3FT3 AB;  3JTT ADE;  3HWX AJ;  3GIV ABD;  3IXA DF;  3FCS AB;  3H7B ADF;  3H9H AC;  1Q8M ABD;  3E3Q MN;  1MUU ABC;  3HAE JMN;  3ETD ACE;  3GSO ABP;  3JTT BDE;  3N2L BCD;  3GSQ AB;  3JTT AGI;  1OP3 KLM;  3JWN EHK;  3DZD AB;  3EFF AM;  3FQR ABC;  3HWX 1AZ;  3JWN CEH;  3N2L ACEH;  3N2L AEH;  2AHR CDE;  1MV8 ABD;  3DX8 ABC;  3HCV AB;  3HAE ST;  1XCB ACG;  3N2L CEFH;  3JWN CFL;  3F7O ABX;  3N2L CD;  3E3Q AEQ;  1ZLW HKM;  3N2L DEGH;  3GIV DEF;  3HFM HL;  3HAE ACH;  1OM3 HKM;  3HWX IRS;  3N2L DFG;  1AGB AB;  3FQW ABC;  3H5A BD;  1XCB ACDF;  3E2H ACQ;  3HG1 ACE;  3N2L CDFG;  3FFC AB;  3GJE BHL;  1XCB CDFG;  3FFC FG;  1WWA XY;  3JTT EG;  3HAE PRT;  3JWN GHM;  3H9S ABC;  3FCS AD;  3JWN HLN;  3FON CDE;  1XCB EF;  1E0J BDEF;  3GDG AB;  3GIV AD;  1A9E ABC;  3GMD ADH;  3HPJ ABC;  3HPL AB;  3GSQ ABP;  2AHR ACD;  3IXA DEF;  3HWX IJS;  3H3F EF;  3N2L ACD;  1XCB CG;  3GVP BD;  3FFC ACD;  1XCB BEFG;  3HWX AIZ;  3GSN HLP;  1ZLS HL;  3JWN HN;  3DXA AKM;  3GJF EH;  3HWX BJS;  3GEF CD;  3ECA ACD;  3GDG ACD;  3FFC FHI;  3FQX ABC;  3HG1 DE;  3DXA DEJ;  3FCS BCD;  3FQN ABC;  3GEF ABC;  3H4H ABC;  3GJF DE;  1A9B ADF;  3HAE DEF;  3GJF ACL;  3H9H AD;  3IXA ADE;  3HWX 1IZ;  3DXA FGH;  2AHR ABC;  3N2L ACE;  1AIF AB;  3GJF DEF;  3GJF DFK;  3N2L BCDE;  1Q8M AB;  3JWN CGH;  3GIV ACD;  3GJF AB;  1ZLU HL;  3HGM BD;  3EYU HL;  3GMD ABF;  3N2L AEGH;  1XCB AEFG;  1E0J CD;  1XCB ACFG;  3N2L FG;  1ZLU HLM;  3FFC BFH;  1MV8 ABCD;  3DX7 AB;  3HAE PQR;  1XCB ACEG;  3HWX ARZ;  3IVK AH;  2AHR BCDE;  3JWN EHN;  1AGF AC;  3JWN CEM;  1E0J ABCE;  3HWX ABS;  1LSS CD;  1XCB BCDG;  2AHR ABD;  1O5O AB;  3HAE DFM;  3ETG ABF;  1A9B ACF;  3FQT AC;  3FCS CD;  3HAE DF;  3EFF CK;  1MFZ CD;  1XCB ABF;  3HLA AB;  3GSN HL;  3FT2 ABP;  2AMF ACDE;  1XCB ABCG;  3N2L CF;  3KDP ACD;  3IVK HL;  3HAE HLO;  3N2L BCFG;  3FOL AB;  1OP5 KLM;  3HWX 1BS;  1A97 AC;  3JTT BDG;  2AHR ABDE;  1OM3 KL;  1E0J CDF;  3JWN GH;  3JTT CGH;  3HWX 1BI;  3GIZ HL;  3GSW ABP;  3GEF BD;  1UT1 BF;  3H5A ABD;  1E0J BCD;  3HWX ABJ;  1AGC ABC;  1ZVN AB;  2AMF BD;  3FCS ABD;  1AQK HL;  1OM3 KLM;  3GMD BFG;  1Q8M AD;  3GJF DEH;  1XCB CEFG;  3JTT AC;  3DXA NO;  3N2L DG;  3DX6 ABC;  3EFF CD;  3HGM AB;  3GDG BCD;  3F7V AB;  1ZLV HLM;  3FT2 AP;  1XCB ACE;  3HWX BI;  1XCB ADEG;  1W5F AB;  3HAE JK;  3JWN GN;  1MV8 AB;  3HAE AJM;  1AGD AB;  1A97 AD;  3FRU ACD;  3DXA KL;  1LSS AB;  3JTT AFH;  3FFC FGH;  2AHR CD;  3GEF ABD;  3N2L EGH;  3JWN IK;  1ZLU LM;  3HWX BIR;  1XCB ABEG;  3GSR AP;  3HGM ABD;  3H7B DEF;  3H9H ADE;  3JTT DFG;  3HPJ DF;  3HWX BRS;  3H3F ACD;  3GJE BL;  2AMF ABCE;  3JTT ABC;  2VSC ABC;  1OP5 HM;  1E0J ABEF;  3JWN CEL;  3FFC ACF;  3H9H ACD;  3DXA ACK;  3IXA AC;  3GJE AL;  3HNT HL;  3H9H DE;  1OP3 HKLM;  2AMF DE;  1A9E AC;  3GK8 HL;  3GEF AD;  3F7Y AB;  1OP3 HKM;  1OP3 HLM;  1E0J ABF;  1ZLW HK;  3GIV AC;  3GSV ABP;  2AHR ACDE;  1XCB AFG;  1CQZ AB;  3GMD DGH;  1E0J EF;  1MUU BCD;  2VSC BC;  3IXA ABE;  3DXA ACL;  3N2L EF;  3GJE ABH;  3HWX 1A;  3H9H AB;  3FQX AC;  1Q8M CD;  3H7B ACD;  3JTT ACH;  1AIF AHL;  3HWX BIJ;  2IEY AB;  3H3F GH;  1AIF AL;  3FON CE;  3ETD BCE;  3N2L DE;  3GMD BF;  3H7B AC;  3FT4 ABP;  3FQR AB;  3HAE DFN;  1A1O AB;  1A9B CDF;  3HWX AI;  1XCB ACDE;  3GIV ABC;  3HAE LO;  3EYS HL;  3GSX ABP;  1Q8M ABC;  3GVP CD;  3IXA BDF;  3N2L AEFG;  1LSU AB;  3HWX ISZ;  3N2L CDGH;  1AGE AB;  1E0J BC;  3HWX 1AJ;  3GSR AB;  3JTT BFH;  1UT1 BC;  3E3Q ADQ;  3JWN CEK;  3FQW AB;  3FT4 AB;  1XCB CE;  1Q8M ABCD;  3JTT CEG;  3H9S ACD;  1O5O AD;  3FFC DFH;  1A9B ACD;  1XCB ABDF;  3ETD ABD;  2AHR AB;  3H9S AB;  3ETD BE;  1ATI AB;  3ETD AF;  2AMF AC;  3HWX 1SZ;  3FFC ACJ;  1AGF ABC;  3FRU AB;  1ZLW HM;  3GDG ABC;  2VSC ABCD;  3KDP ABG;  2AHR AD;  3JWN HIK;  1E0J ABCD;  3N2L AC;  3GMD BCF;  3GSU ABP;  3HWX ARS;  1ZLV HM;  3FON AB;  3HWX 1JZ;  3HWX RSZ;  1OP3 HK;  3N2L CFGH;  3GSN BHP;  1E0J CEF;  1XCB CDEF;  3N2L ACDG;  3ETD BF;  3HWX 1IJ;  3ETD CDE;  3GSX AB;  3HWX IRZ;  3GVP BCD;  3FOM ABP;  3N2L ABE;  3N2L ABC;  3DXA CKM;  3HAE PR;  3FQN AB;  2AMF AE;  1A9B DE;  1XCB AEG;  1XCB DF;  3GDG ABD;  3HAE JM;  3ETG CEF;  1AGC AC;  3N2L ABDE;  3HAE DFL;  3JTT AEF;  3HGM BCD;  3DX8 AC;  3HPJ AD;  1XCB BEF;  3JWN IKM;  3HC3 HL;  3JWN GHI;  1OP3 HL;  3GJF ABC;  2AHR ABCD;  3H3F EFH;  3H3F AFG;  1XCB BDEF;  3JTT DF;  3JTT DFI;  3H4F AB;  3JWN MN;  3DXA FH;  3KDP AB;  3E3Q cdf;  3JWN LMN;  1ZLU HKL;  3GMD DEH;  3N2L BCDF;  3EFD HK;  3GJF KM;  3N2L BCEF;  3EFF BN;  2AMF BDE;  3GJE AB;  3KDP CD;  1XCB ABE;  3HWX AR;  1A97 BC;  3GMD CDH;  3HPJ AC;  3N2L DEH;  1Q8M BCD;  3GSQ AP;  3FON AP;  1A1N AC;  3ETG CF;  1OM3 HM;  3N2L ADFG;  1A97 BCD;  1ZLW KM;  3HPJ ADE;  1E0J BCDF;  3ETD ABE;  3IXA ABC;  3HWX RZ;  3GJF ACH;  3HAE LNO;  2W5P ABC;  3H7B ACF;  3HGM CD;  3HWX BRZ;  3N2L ACDE;  1MV8 ACD;  3ETD ADE;  3FQU AC;  3HPJ ACD;  3HWX BS;  3FRU BCD;  2AMF BCD;  3FCS ACD;  3JWN CGL;  3DX9 CD;  3H4H AC;  2W5P BC;  2BL4 AB;  3HAE DFP;  3ETD AC;  3IXA ADF;  3DXA AB;  3N2L DEG;  3JTT ADF;  1XCB ACDG;  1E0J BCEF;  1Q8M ACD;  1XCB BEG;  3GMD BDH;  1A1M AB;  1UT1 AE;  1AIF HL;  3JWN EFH;  3HWX BJR;  3N2L AEFH;  1MUU BD;  3FCT AB;  3JTT AGH;  3ETG ABE;  3JWN GIK;  1XCB CEF;  3H7B DF;  1E0J BCF;  3GEF BC;  3EFF AB;  2AHR BC;  3HWX AZ;  1OM3 HKLM;  3IXA DE;  1MV8 ABC;  3HCV AC;  3HWX BJ;  3HGM ACD;  3N2L CDEF;  3N2L ADE;  3F7O ABY;  1MUU CD;  3GEF AC;  3IVK ABH;  1ZLW HKL;  3HG1 AC;  3EFF DL;  1OM3 HKL;  3N2L ABEF;  1A9B AB;  1OP5 HKLM;  1OP5 KM;  3GMD CD;  3HWX AIR;  3E3Q PST;  3N2L EFG;  3JWN HIM;  3HG1 ACD;  3FFC AC;  1GME AB;  3FQT ABC;  1ZLV HK;  2VSC AB;  3JTT AFG;  3HAE PRS;  3JTT DEI;  3FOL AP;  1XCB AF;  1OP5 HKL;  3EFF AK;  2AMF ABE;  3N2L ADEF;  3FT2 AB;  3DXA ACF;  3KDP BCH;  3ETG BF;  1O5O BD;  1ZLU HKLM;  3FRU EF;  1XCB CDE;  1A9B DF;  3JWN CE;  3HWX IJR;  1KAR AB;  3H3F BEF;  3FFC ACE;  3GSW AP;  3IXA AD;  3IVK BL;  3HWX AJR;  3JWN FHL;  3N2L CDE;  3HWX AJS;  3FB8 AB;  3GIV DE;  1MUU AC;  1AHW AB;  3HAE AC;  3FOM AP;  1E0J ABC;  3H9S DE;  3KDP CDH;  3DX6 AC;  3ETG AEF;  3DXA DEI;  3N2L FGH;  3FOL ABP;  2VSC BD;  3N2L CDG;  1A1O ABC;  3GDG AD;  1ZLV HKLM;  3GIV AB;  3N2L AEG;  3FFC IJ;  3GJF DFM;  3HWX 1JS;  3HGM ABC;  1X7D AB;  3GJE BH;  3JTT AD;  3ETG ACF;  3FON ACE;  2AHR AC;  3JTT GI;  3JWN CGI;  1AGE ABC;  3GJF AC;  1ZLV HKL;  3HWX AJZ;  3GSR ABP;  1QEX AB;  1E0J CE;  3ETD BDE;  3HAE JMO;  3GDG CD;  3ETD ACF;  3N2L ACF;  3GSO AB;  3FRU AD;  1OM3 HK;  1UT1 BCF;  1KAE AB;  3HAE DFK;  3N2L ADGH;  3JTT CDF;  3HWX 1AI;  1XCB BCE;  1AGF AB;  3GJE ABL;  3JWN CEN;  1XCB CDG;  1ZLV KLM;  3HWX ABR;  2AHR ABE;  3JTT DEF;  1O5O AC;  1OP5 HK;  3FON ABP;  1E0J CDEF;  3JWN CGN;  3ETG BCD;  3H5A AD;  3EFF CL;  3GJE HL;  3DXA FHJ;  3EFF DK;  3N2L CFG;  3FFC ACI;  3E3Q IJ;  3E3Q VW;  2VSC ABD;  2W5P AC;  3FCS AC;  3DL2 AB;  3KDP ABH;  1XCB ADE;  3HWX 1BR;  3ETD ACD;  3FQU ABC;  3JTT BDF;  1XCB BCG;  2AHR ADE;  1OM3 KM;  1XCB AG;  3IVK AB;  1E0J CDE;  3ETG ACD;  3DXA DKM;  3DXA EFH;  3H7B ABC;  3HWX RS;  3DXA DJ;  3HWX 1Z;  3JWN CEG;  3HWX ABI;  3KDP BCG;  3E3Q DE;  3DXA EJ;  3HWX JRS;  3JWN GMN;  3JWN CFM;  1XCB BCEF;  3GMD DFH; 
#chains in the LinkProt database with same CATH homology
 3N2L FG;  3HWX AB;  3N2L EFH;  3N2L ABD;  3KDP AB;  1A97 ABD;  3HWX BI;  3HWX 1AR;  3N2L GH;  3HWX IJZ;  3N2L EFGH;  3N2L BCDF;  1O5O ABCD;  3HWX 1S;  1A97 AB;  3KDP CD;  3HWX AIS;  3HWX ABS;  1A97 BC;  3KDP ABD;  3HWX 1JR;  3HWX BSZ;  1O5O AB;  3HWX ASZ;  3N2L CFG;  3N2L ADE;  3N2L ADFG;  1A97 BCD;  3HWX 1AB;  3HWX AS;  3N2L ADEG;  3HWX RZ;  3N2L DGH;  1A97 BD;  3KDP ACD;  3N2L CEF;  3HWX BRZ;  3EYW AB;  3N2L DE;  3HWX 1BS;  1A97 AC;  3N2L CEFG;  3HWX BS;  3N2L ACE;  3HWX 1IJ;  1O5O ACD;  3HWX 1BI;  3KDP ABC;  2BL4 AB;  3N2L AE;  3N2L AEF;  3N2L CDF;  3HWX ABJ;  3N2L DFG;  3HWX IRZ;  3N2L EH;  3HWX BJR;  3N2L BCFG;  3N2L DG;  3N2L BCDG;  3ECA BCD;  3N2L ABDE;  3N2L CDEH;  1W5F AB;  3HWX ABZ;  1A97 AD;  3HWX BJ;  3N2L ABE;  3N2L EF;  3HWX ARZ;  3F7O ABY;  3N2L ACF;  3N2L CDE;  3N2L EGH;  3HWX AJS;  3N2L DEH;  3HWX BIR;  3N2L ADEH;  3N2L BC;  3N2L ABEF;  3HWX AIR;  3F7O AB;  3HWX BRS;  3N2L ABCF;  3HWX 1BZ;  3N2L EFG;  3N2L ADG;  3N2L DFGH;  3N2L ADEF;  3HWX 1RS;  3KDP BCH;  3GVP ACD;  3HWX AR;  3HWX 1IR;  3N2L AB;  1A97 ABC;  3N2L AD;  3HWX IJR;  1O5O BCD;  3HWX 1BJ;  1CQZ AB;  1EK1 AB;  3N2L DEFG;  3HWX AJR;  3N2L AEG;  3DZD AB;  3HWX IRS;  3HWX 1A;  3N2L ACEF;  3N2L ABEG;  1O5O CD;  1O5O BD;  3N2L CDEG;  3KDP CDH;  3HWX 1AZ;  3N2L FGH;  1O5O ABD;  1A97 ACD;  3N2L ABDG;  3N2L BCD;  1CR6 AB;  3N2L ACEH;  3N2L AEH;  3HWX AI;  3N2L DEF;  3HWX 1JS;  3GVP CD;  3N2L AEGH;  3N2L AEFG;  3HWX AJ;  3N2L CEFH;  3HWX IJ;  3F7O ABX;  3N2L CD;  3N2L CDGH;  3N2L ACDE;  3N2L CF;  3HWX 1AJ;  2BI4 AB;  3N2L CDG;  3HWX BIS;  3HWX AJZ;  3N2L ACFG;  3HWX 1RZ;  1O5O BC;  3HWX JRS;  1O5O AD;  3N2L AEFH;  3N2L CDFG;  3N2L ABCE;  3N2L DEFH;  3HWX BIJ;  3HWX JSZ;  3N2L ABCD;  3N2L ADGH;  3F7O BY;  3HWX 1AI;  3HWX ISZ;  3HWX AIJ;  3HWX 1SZ;  3N2L DEG;  3HWX ABR;  3KDP ABG;  3N2L AC;  1O5O AC;  3HWX ARS;  3HWX BJZ;  3HWX 1JZ;  3HWX RSZ;  3N2L BCEF;  3GVP BD;  3N2L CFGH;  3HWX BIZ;  3N2L ACDG;  3N2L EG;  3HWX AIZ;  3N2L ACEG;  1EK2 AB;  3N2L ACDF;  3KDP ABH;  3N2L CDEF;  3GVP BCD;  3HWX 1BR;  3ECA ACD;  3N2L ABC;  3N2L ACD;  1O5O ABC;  3HWX RS;  3HWX IS;  3HWX 1Z;  3N2L DEGH;  3N2L ABEH;  3HWX ABI;  3KDP BCG;  3HWX AZ;  3HWX 1IZ;  3KDP ACG;  3HWX SZ;  3KDP CDG;  3HWX BJS;  3N2L BCF;  3HWX IJS;  3N2L BCDE; 

#similar chains in the LinkProt database (?% sequence similarity)
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#similar chains, but unlinked
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#similar chains in the pdb database (?% sequence similarity)
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