d1o17d2d1ir6a_

Motif (click icon to enlarge)	SCOPid	Range	SCOP Class	SCOP Fold	SCOP Superfamily	SCOP Family	Protein
1o17_Dh	d1o17d2	D182-D248,D280-D303	Alpha and beta proteins (a/b)	Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain	Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain	Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain	Anthranilate phosphoribosyltransferase (TrpD)
1ir6_Ac	d1ir6a_	A329-A403,A404-A433	Alpha and beta proteins (a/b)	DHH phosphoesterases	DHH phosphoesterases	Exonuclease RecJ	Exonuclease RecJ

Justification for analogy
The motif in 1o17: compare to d2tpt_2 (same family); two strands are insertions; hybrid motif resulted from a helix-to-strand transition in a Rossmann structure. In 1ir6, comparing d1ir6a_ and d1k20a_ (same superfamily), domain 2 in these two homologs are not exactly the same. Anyway, domain 2 does not have a Rossmann-like structure. So the motif in 1o17 and the motif in 1ir6 are analogs.

In the alignments below, two upper-case letters are aligned, while two lower-case letters are NOT aligned. The two sequences in an alignment are NOT continuous in most cases (see their ranges). The superpositions 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.

MANUAL alignment     PDB format superposition    aligned motifs in PyMol   whole structures in PyMol

1o17_Dh   panAKYQLMGV--FSKDHLDLLSKSAYEL-DFnKIILVYGepgidevspignTFMKIVSK----------------------rGIEEVKLNvkdehvaefIKINTAVALFALDrvg--------------
1ir6_Ac   ---AKAIVLLDpeGHPGVMGIVASRILEAtLR-PVFLVAQ------------GKGTVRSLapisavealrsaedlllrygghkEAAGFAMD---------EALFPAFKARVEAyaarfpdpvrevalldl

DALI alignment     PDB format superposition    aligned motifs in PyMol   whole structures in PyMol

1o17_Dh   panAKYQLMGV--FSKDHLDLLSKSAYELDFNKIILVYGepgidevspignTFMKIVSK----------------------RGIEEVKLNvkdehvaefiKINTAVALFALDR--------------vg
1ir6_Ac   ---AKAIVLLDpeGHPGVMGIVASRILEATLRPVFLVAQ------------GKGTVRSLapisavealrsaedlllrygghKEAAGFAMD---------eALFPAFKARVEAYaarfpdpvrevalldl

TM alignment     PDB format superposition    aligned motifs in PyMol   whole structures in PyMol

1o17_Dh   PANAKYQLMGV--FSKDHLDLLSKSAYEL-DFNKIILVYGEPGIDEVSPIGNTFMKIVSK----------------------RGIEEVKLNV-KDEHVAEFIKINTAVALFAL-DR---------------VG
1ir6_Ac   ---AKAIVLLDPEGHPGVMGIVASRILEATLR-PVFLVAQ------------GKGTVRSLAPISAVEALRSAEDLLLRYGGHKEAAGFAM-DE-------A--LFPAFKARVEAYAARFPDPVREVALLDL--

FAST alignment     PDB format superposition    aligned motifs in PyMol   whole structures in PyMol

1o17_Dh   PANAKY---QLMGVF--SKDHLDLLSKSAYELDFNKIILVYGEPGIDEVSPI-GNTFMKIVSKRGIE------------------------EVKLNVKDEHVA---EFIKINTAVALFALDRVG--------------
1ir6_Ac   ------AKAIVLLDPEGHPGVMGIVASRILEA-TLR-PVFLVA---------QGKGTVRSL------APISAVEALRSAEDLLLRYGGHKEAAGFAM------DEALFPAFKARVEAYAA----RFPDPVREVALLDL