SUPERFAMILY 1.75 HMM library and genome assignments server

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L9 N-domain-like superfamily

SCOP classification
Root:   SCOP hierarchy in SUPERFAMILY [ 0] (11)
Class:   Alpha and beta proteins (a+b) [ 53931] (376)
Fold:   MbtH/L9 domain-like [ 55657] (2)
Superfamily:   L9 N-domain-like [ 55658] (2)
Families:   Ribosomal protein L9 N-domain [ 55659]
  N-terminal domain of RNase HI [ 55662]


Superfamily statistics
Genomes (3,019) Uniprot 2018_03 genome PDB chains (SCOP 1.75)
Domains 4,302 27,602 12
Proteins 4,104 26,892 12


Functional annotation
General category Information
Detailed category Translation

Document:
Function annotation of SCOP domain superfamilies

Enzyme Commission (EC)

(show details)
EC termFDR (all)SDEO levelAnnotation (direct or inherited)
Enzyme Commission (EC)Acting on ester bonds0Least InformativeDirect
Enzyme Commission (EC)Endoribonucleases producing 5'-phosphomonoesters0Moderately InformativeDirect
Enzyme Commission (EC)Ribonuclease H0Highly InformativeDirect

Document: EC annotation of SCOP domains

Arabidopsis Plant Ontology (AP)

(show details)
AP termFDR (all)SDAP levelAnnotation (direct or inherited)
Plant ANatomical entity (PAN)microsporophyll0Least InformativeDirect
Plant ANatomical entity (PAN)inflorescence0Least InformativeDirect
Plant ANatomical entity (PAN)root system0Least InformativeDirect
Plant ANatomical entity (PAN)flower0Least InformativeDirect
Plant ANatomical entity (PAN)seed0Least InformativeDirect
Plant ANatomical entity (PAN)whole plant0Least InformativeDirect
Plant ANatomical entity (PAN)shoot axis0Least InformativeDirect
Plant ANatomical entity (PAN)guard cell0Least InformativeDirect
Plant ANatomical entity (PAN)megasporophyll0Least InformativeDirect
Plant ANatomical entity (PAN)collective phyllome structure0Least InformativeDirect
Plant structure DEvelopment stage (PDE)F mature embryo stage0Least InformativeDirect
Plant structure DEvelopment stage (PDE)D bilateral stage0Least InformativeDirect
Plant structure DEvelopment stage (PDE)C globular stage0Least InformativeDirect
Plant structure DEvelopment stage (PDE)E expanded cotyledon stage0Least InformativeDirect

Document: AP annotation of SCOP domains

Enzyme Commission (EC)

(show details)
EC termFDR (all)SDEC levelAnnotation (direct or inherited)
Enzyme Commission (EC)Hydrolases0Least InformativeDirect
Enzyme Commission (EC)Endoribonucleases producing 5'-phosphomonoesters0InformativeDirect

Document: EC annotation of SCOP domains

InterPro annotation
Cross references IPR009027 SSF55658 Protein matches
Abstract

The N-terminal domain of the ribosomal protein L9 is a regulatory RNA-binding module that binds to 23rRNA. L9 is composed of two domains and functions as a structural protein in the large subunit of the ribosome.

The N-terminal domain of eukaryotic RNase HI, which is lacking in retroviral and prokaryotic enzymes, shows a striking structural similarity to the L9 N-terminal domain, and may also function as a regulatory RNA-binding module. Eukaryotic RNases HI possess either one or two copies of the small N-terminal domain, in addition to the well-conserved catalytic RNase H domain. RNase HI belongs to the family of ribonuclease H enzymes that recognise RNA:DNA hybrids and degrade the RNA component.

The structures of both the L9 [PubMed8306963] and the RNase HI [PubMed10448044] N-terminal domains consist of a three-stranded antiparallel beta-sheet sandwiched between two short alpha-helices. The hydrophobic core of the domain is formed by the conserved residues that are involved in the packing of the alpha-helices onto the beta-sheet. The (beta)2/alpha/beta/alpha topology of the domain differs from the structures of known RNA binding domains such as the double-stranded RNA binding domain (dsRBD), the hnRNP K homology (KH) domain and the RNP motif.


InterPro database


PDBeMotif information about ligands, sequence and structure motifs
Cross references PDB entries
Ligand binding statistics
Nucleic-acid binding statistics
Occurrence of secondary structure elements
Occurrence of small 3D structural motifs

PDBeMotif resource

Jump to [ Top of page · SCOP classification · InterPro annotation · PDBeMotif links · Functional annotation · Enzyme Commission (EC) · Arabidopsis Plant Ontology (AP) · Enzyme Commission (EC) ]

Internal database links

Browse genome assignments for this superfamily. The SUPERFAMILY hidden Markov model library has been used to carry out SCOP domain assignments to all genomes at the superfamily level.


Alignments of sequences to 4 models in this superfamily are available by clicking on the 'Alignments' icon above. PDB sequences less than 40% identical are shown by default, but any other sequence(s) may be aligned. Select PDB sequences, genome sequences, or paste in or upload your own sequences.


Browse and view proteins in genomes which have different domain combinations including a L9 N-domain-like domain.


Examine the distribution of domain superfamilies, or families, across the major taxonomic kingdoms or genomes within a kingdom. This gives an immediate impression of how superfamilies, or families, are restricted to certain kingdoms of life.


Explore domain occurrence network where nodes represent genomes and edges are domain architectures (shared between genomes) containing the superfamily of interest.

There are 4 hidden Markov models representing the L9 N-domain-like superfamily. Information on how the models are built, and plots showing hydrophobicity, match emmission probabilities and insertion/deletion probabilities can be inspected.


Jump to [ Top of page · SCOP classification · InterPro annotation · PDBeMotif links · Functional annotation · Enzyme Commission (EC) · Arabidopsis Plant Ontology (AP) · Enzyme Commission (EC) · Internal database links ]