In the alignments below, two upper-case letters are aligned, and two lower-case letters are NOT aligned. The superposition files are re-constructed from the corresponding alignments by minimizing the overall RMSD. In a PDB-format superposition file, the first domain is represented by chain S and the second domain is represented by chain A. The coordinates of the first domain are transformed, while the coordinates of the second domain are the same as in the original PDB file.

MANUAL alignment      superposition in PDB format     colored superposition in PyMol

1r51_A1   -AVkAARYGKDNVRVYKVHkdek------------tgvQTVYEMTVCVLLEGeietsyt---kadnsvivATDSIKNTIYITAKQNPVTPPELFGSILGTHFIEKYNHIHAAHVNIVCHRWTRMDIDgk-------phPHSFIRdSE-EKRNVQVDVVEG
1r51_A2   kGI-DIKSSLSGLTVLKSTnsqfwgflrdeyttlketwDRILSTDVDATWQWknfsglqevrshvpkfdaTWATAREVTLKTFAEDNSASVQATMYKMAEQILARQQLIETVEYSLPNKHYFEIDLSwhkglqntgknAEVFAP-QSdPNGLIKCTVGRS

DALI alignment      superposition in PDB format     colored superposition in PyMol

1r51_A1   AVKAARYGKDNVRVYKVH------------kdektgvQTVYEMTVCVLLEGEIE--tsYTKADNSVI-VATDSIKNTIYITAKQNPVTPPELFGSILGTHFIEKYNHIHAAHVNIVCHRWTRMDID----GKPH---PHSFIRDSEEKRNVQVDVVEG
1r51_A2   KGIDIKSSLSGLTVLKSTnsqfwgflrdeyttlketwDRILSTDVDATWQWKNFsglqEVRSHVPKFdATWATAREVTLKTFAEDNSASVQATMYKMAEQILARQQLIETVEYSLPNKHYFEIDLSwhkgLQNTgknAEVFAPQSDPNGLIKCTVGRS

TM alignment      superposition in PDB format     colored superposition in PyMol

1r51_A1   -AVKAARYGKDNVRVYKVHK------------------DEKTGVQTVYEMTVCVLLEGEIETSYTK--A-DNSVI-VATDSIKNTIYITAKQNPVTPPELFGSILGTHFIEKYNHIHAAHVNIVCHRWTRMDIDG----K-P--HPHSFIRDSEEKRNVQVDVVEG
1r51_A2   KGI-DIKSSLSGLTVLKSTNSQFWGFLRDEYTTLKETW------DRILSTDVDATWQWKNFS-GLQEVRSHVPKFDATWATAREVTLKTFAEDNSASVQATMYKMAEQILARQQLIETVEYSLPNKHYFEIDLSWHKGLQNTGKNAEVFAPQSDPNGLIKCTVGRS

FAST alignment      superposition in PDB format     colored superposition in PyMol

1r51_A1   AVK---AARYGKDNVRVYKVHKDEKTGV--------------------QTVYEMTVCVLLEGEIETS--YTKAD------NSVIVA---TDSIKNTIYITAKQNPVTPPELFGSILGTHFIEKYNHIHAAHVNIVCHRWTRMDID-----GKPHP----HSFIRDSEEKRNVQVDVVEG
1r51_A2   ---KGIDIKSSLSGLTVLKS--------TNSQFWGFLRDEYTTLKETWDRILSTDVDATWQW-----KNFSGL-QEVRSHVPKF--DATWATAREVTLKTFAEDNSASVQATMYKMAEQILARQQLIETVEYSLPNKHYFEIDL-SWHKGLQNT-GKNAEVFAPQSDPNGLIKCTVGRS