Please note: this site relies heavily on the use of javascript. Without a javascript-enabled browser, this site will not function correctly. Please enable javascript and reload the page, or switch to a different browser.
5  structures 191  species 1  interaction 252  sequences 5  architectures

Family: Nup35_RRM (PF05172)

Summary: Nup53/35/40-type RNA recognition motif

Pfam includes annotations and additional family information from a range of different sources. These sources can be accessed via the tabs below.

The Pfam group coordinates the annotation of Pfam families in Wikipedia, but we have not yet assigned a Wikipedia article to this family. If you think that a particular Wikipedia article provides good annotation, please let us know.

This tab holds the annotation information that is stored in the Pfam database. As we move to using Wikipedia as our main source of annotation, the contents of this tab will be gradually replaced by the Wikipedia tab.

Nup53/35/40-type RNA recognition motif Provide feedback

Members of this family belong to the nucleor pore complex, NPC, the only gateway between the nucleus and the cytoplasm. The NPC consists of several subcomplexes each one of which is made up of multiple copies of several individual Nup, Nic or Sec protein subunits. In yeast, this Nup or nucleoporin subunit is numbered Nup53, Nup40 in Schizo. pombe and in vertebrates as Nup35. This subunit forms part of the inner ring within the membrane and interacts directly with Nup-Ndc1, considered to be an anchor for the NPC in the pore membrane [1]. This region of the Nup is the RNA-recognition region [2].

Literature references

  1. Brohawn SG, Partridge JR, Whittle JR, Schwartz TU;, Structure. 2009;17:1156-1168.: The nuclear pore complex has entered the atomic age. PUBMED:19748337 EPMC:19748337

  2. Handa N, Kukimoto-Niino M, Akasaka R, Kishishita S, Murayama K, Terada T, Inoue M, Kigawa T, Kose S, Imamoto N, Tanaka A, Hayashizaki Y, Shirouzu M, Yokoyama S;, J Mol Biol. 2006;363:114-124.: The crystal structure of mouse Nup35 reveals atypical RNP motifs and novel homodimerization of the RRM domain. PUBMED:16962612 EPMC:16962612


External database links

This tab holds annotation information from the InterPro database.

InterPro entry IPR007846

The nuclear pore complex (NPC) mediates the transport of macromolecules across the nuclear envelope (NE). The NPC is composed of a relatively small number of proteins (~30), termed nucleoporins or Nups. The vertebrate nuclear pore protein Nup35, the ortholog of Saccharomyces cerevisiae Nup53p, is suggested to interact with the NE membrane and to be required for nuclear morphology. The highly conserved region between vertebrate Nup35 and yeast Nup53p is predicted to contain an RNA-recognition motif (RRM) domain.

The sequences of the RRM Nup-35-type domain are highly conserved in all eucaryotes. The RRM Nup35-type domain adopts the characteristic BetaAlphaBeta BetaAlphaBeta topology of the secondary structure elements, with a four- stranded antiparallel beta-sheet packed against two alpha helices. The RRM Nup35-type domain forms a homodimer and contains atypical rinonucleoprotein (RNP) motifs, which lack the conserved residues that typically bind RNA in canonical RRM domains. The dimer interface involves the beta-sheet surface, with its atypical RNP motifs, which is generally used to bind RNA in typical RRM domains [PUBMED:16962612].

This entry represents the RRM Nup35-type domain.

Domain organisation

Below is a listing of the unique domain organisations or architectures in which this domain is found. More...

Loading domain graphics...

Pfam Clan

This family is a member of clan RRM (CL0221), which contains the following 15 members:

BRAP2 Calcipressin DUF1866 Limkain-b1 Nup35_RRM Nup35_RRM_2 Ribosomal_L23 RNA_bind RRM_1 RRM_2 RRM_3 RRM_5 RRM_6 Smg4_UPF3 XS

Alignments

We store a range of different sequence alignments for families. As well as the seed alignment from which the family is built, we provide the full alignment, generated by searching the sequence database using the family HMM. We also generate alignments using four representative proteomes (RP) sets, the NCBI sequence database, and our metagenomics sequence database. More...

View options

We make a range of alignments for each Pfam-A family. You can see a description of each above. You can view these alignments in various ways but please note that some types of alignment are never generated while others may not be available for all families, most commonly because the alignments are too large to handle.

  Seed
(7)
Full
(252)
Representative proteomes NCBI
(260)
Meta
(2)
RP15
(60)
RP35
(91)
RP55
(135)
RP75
(164)
Jalview View  View  View  View  View  View  View  View 
HTML View  View  View  View  View  View     
PP/heatmap 1 View  View  View  View  View     
Pfam viewer View  View             

1Cannot generate PP/Heatmap alignments for seeds; no PP data available

Key: ✓ available, x not generated, not available.

Format an alignment

  Seed
(7)
Full
(252)
Representative proteomes NCBI
(260)
Meta
(2)
RP15
(60)
RP35
(91)
RP55
(135)
RP75
(164)
Alignment:
Format:
Order:
Sequence:
Gaps:
Download/view:

Download options

We make all of our alignments available in Stockholm format. You can download them here as raw, plain text files or as gzip-compressed files.

  Seed
(7)
Full
(252)
Representative proteomes NCBI
(260)
Meta
(2)
RP15
(60)
RP35
(91)
RP55
(135)
RP75
(164)
Raw Stockholm Download   Download   Download   Download   Download   Download   Download   Download  
Gzipped Download   Download   Download   Download   Download   Download   Download   Download  

You can also download a FASTA format file containing the full-length sequences for all sequences in the full alignment.

External links

MyHits provides a collection of tools to handle multiple sequence alignments. For example, one can refine a seed alignment (sequence addition or removal, re-alignment or manual edition) and then search databases for remote homologs using HMMER3.

Pfam alignments:

HMM logo

HMM logos is one way of visualising profile HMMs. Logos provide a quick overview of the properties of an HMM in a graphical form. You can see a more detailed description of HMM logos and find out how you can interpret them here. More...

Trees

This page displays the phylogenetic tree for this family's seed alignment. We use FastTree to calculate neighbour join trees with a local bootstrap based on 100 resamples (shown next to the tree nodes). FastTree calculates approximately-maximum-likelihood phylogenetic trees from our seed alignment.

Note: You can also download the data file for the tree.

Curation and family details

This section shows the detailed information about the Pfam family. You can see the definitions of many of the terms in this section in the glossary and a fuller explanation of the scoring system that we use in the scores section of the help pages.

Curation View help on the curation process

Seed source: Guo JH
Previous IDs: MPPN;
Type: Domain
Author: Guo JH, Coggill P
Number in seed: 7
Number in full: 252
Average length of the domain: 95.70 aa
Average identity of full alignment: 32 %
Average coverage of the sequence by the domain: 25.66 %

HMM information View help on HMM parameters

HMM build commands:
build method: hmmbuild -o /dev/null HMM SEED
search method: hmmsearch -Z 23193494 -E 1000 --cpu 4 HMM pfamseq
Model details:
Parameter Sequence Domain
Gathering cut-off 20.9 20.9
Trusted cut-off 20.9 21.0
Noise cut-off 20.8 20.8
Model length: 101
Family (HMM) version: 8
Download: download the raw HMM for this family

Species distribution

Sunburst controls

Show

This visualisation provides a simple graphical representation of the distribution of this family across species. You can find the original interactive tree in the adjacent tab. More...

Loading sunburst data...

Tree controls

Hide

The tree shows the occurrence of this domain across different species. More...

Loading...

Please note: for large trees this can take some time. While the tree is loading, you can safely switch away from this tab but if you browse away from the family page entirely, the tree will not be loaded.

Interactions

There is 1 interaction for this family. More...

Nup35_RRM

Structures

For those sequences which have a structure in the Protein DataBank, we use the mapping between UniProt, PDB and Pfam coordinate systems from the PDBe group, to allow us to map Pfam domains onto UniProt sequences and three-dimensional protein structures. The table below shows the structures on which the Nup35_RRM domain has been found. There are 5 instances of this domain found in the PDB. Note that there may be multiple copies of the domain in a single PDB structure, since many structures contain multiple copies of the same protein seqence.

Loading structure mapping...