d1htjf_d1nhua_

Motif
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SCOPidRangeSCOP ClassSCOP FoldSCOP SuperfamilySCOP FamilyProtein
1htj_Fh
d1htjf_F320-F352,F441-F487All alpha proteinsRegulator of G-protein signaling, RGSRegulator of G-protein signaling, RGSRegulator of G-protein signaling, RGSPdz-RhoGEF RGS-like domain
1nhu_Ac
d1nhua_A386-A477,A478-A563Multi-domain proteins (alpha and beta)DNA/RNA polymerasesDNA/RNA polymerasesRNA-dependent RNA-polymeraseViral RNA polymerase

Justification for analogy
From the 1htj paper, the last three helices (helix 10-12) are an integral extension of the RGS fold with many hydrophobic interactions. These three helices are absent in other RGS, so they are insertions. The 4-helix motif is a hybrid, using 2 helices from the RGS core and 2 helices from the insertion.


Alignment-based scores
AlignerAligned LengthSequence IdentityRMSDGDT-TSCOMPASS
manual650.153853.2692555.76923-3.87278
dali690.101453.6300852.53623-3.89189
tm680.102942.9383356.25000-4.45816
fast590.135593.3677253.81356-3.27757

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

1htj_Fh   ------------------------------------RPAHLGVFLRYIFSQA-----------------DPSPLLFYLCAEVYqqa-------------------gdplrERQVAEKQLAALGDILSAYaADRSAPMDFALNTYMShagirl---------------------------
1nhu_Ac   rdpttplaraawetarhtpvnswlgniimyaptlwaRMILMTHFFSILLAQEqlekaldcqiygacysiEPLDLPQIIERLHGlsafslhsyspgeinrvasclrklgvpPLRVWRHRARSVRARLLSQ-GGRAATCGKYLFNWAVktklkltpipaasqldlsgwfvagysggdiyhs

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

1htj_Fh   ------------------------------------RPAHLGVFLRYIFSQADPS--------------PLLFyLCAEVYQQA------------------------GDPLReRQVAEKQLAALGDILsayaadRSAP-MDFALNTYMshaGIRL---------------------------------
1nhu_Ac   rdpttplaraawetarhtpvnswlgniimyaptlwaRMILMTHFFSILLAQEQLEkaldcqiygacysiEPLD-LPQIIERLHglsafslhsyspgeinrvasclrkLGVPP-LRVWRHRARSVRARL-----lSQGGrAATCGKYLF---NWAVktklkltpipaasqldlsgwfvagysggdiyhs

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

1htj_Fh   ----------------------------------R--PAHLGVFLRYIFS--Q-AD---------------PSPLLFYLCAEVYQQA-------------GDP--------LRERQVAEKQLAALGDILSAYAADR--SAPMDFALNTYMSHAGIRL---------------------------------
1nhu_Ac   RDPTTPLARAAWETARHTPVNSWLGNIIMYAPTLWARMILMTHFFSIL-LAQEQLEKALDCQIYGACYSIEPLDLPQIIERLHGLSAFSLHSYSPGEINRVASCLRKLGVP-PL-RVWRHRARSVRARLLSQG--GRAA-TCGKYLFN--W----AVKTKLKLTPIPAASQLDLSGWFVAGYSGGDIYHS

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

1htj_Fh   RP--------------------------------------AHLGVFLRYIFSQADPSPLLF-----------------YLCAEVYQQAGDPLRE------------------------------RQVAEKQLAALGDILSAYAADRSAPMDFALNTYMSHAGIRL----------------------------------
1nhu_Ac   --RDPTTPLARAAWETARHTPVNSWLGNIIMYAPTLWARMILMTHFFSILLAQEQLE----KALDCQIYGACYSIEPLDLPQIIERL-------HGLSAFSLHSYSPGEINRVASCLRKLGVPPLRVWRHRARSVRARLLSQ-GGRAATCGKYLFNWA-------VKTKLKLTPIPAASQLDLSGWFVAGYSGGDIYHS