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.
0  structures 242  species 0  interactions 873  sequences 24  architectures

Family: ELMO_CED12 (PF04727)

Summary: ELMO/CED-12 family

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

This is the Wikipedia entry entitled "ELMO (protein)". More...

ELMO (protein) Edit Wikipedia article

ELMO/CED-12 family
Identifiers
Symbol ELMO_CED12
Pfam PF04727
InterPro IPR006816
PROSITE PDOC51335

ELMO (Engulfment and Cell Motility) is a family of related proteins (~82 kDa) involved in intracellular signalling networks. These proteins have no intrinsic catalytic activity and instead function as adaptors which can regulate the activity of other proteins through their ability to mediate protein-protein interactions.

This family contains three paralogous isoforms:

Structure and function[edit]

The ELMO family are evolutionarily conserved orthologs of the C. elegans protein CED-12. All isoforms contain a series of armadillo repeats, which begin at the N-terminus and extend around two thirds of the way along the protein, as well as a C-terminal proline-rich motif and a central PH domain.[1] They function as part of a protein complex with Dock180-related proteins to form a bipartite guanine nucleotide exchange factor for Rac (a member of the Rho family of small G proteins).[2] The Dock180-ELMO interaction requires the ELMO PH domain and also involves binding of the ELMO proline-rich motif to the Dock180 SH3 domain.[3]

References[edit]

  1. ^ Lu M, Ravichandran KS (2006). "Dock180-ELMO cooperation in Rac activation". Meth. Enzym. 406: 388–402. doi:10.1016/S0076-6879(06)06028-9. PMID 16472672. 
  2. ^ Gumienny TL, Brugnera E, Tosello-Trampont AC, et al. (2001). "CED-12/ELMO, a novel member of the CrkII/Dock180/Rac pathway, is required for phagocytosis and cell migration". Cell 107 (1): 27–41. doi:10.1016/S0092-8674(01)00520-7. PMID 11595183. 
  3. ^ Komander D, Patel M, Laurin M, et al. (September 2008). "An Alpha-Helical Extension of the ELMO1 Pleckstrin Homology Domain Mediates Direct Interaction to DOCK180 and Is Critical in Rac Signaling". Mol. Biol. Cell 19 (11): 4837–51. doi:10.1091/mbc.E08-04-0345. PMC 2575150. PMID 18768751. 


This page is based on a Wikipedia article. The text is available under the Creative Commons Attribution/Share-Alike License.

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.

ELMO/CED-12 family Provide feedback

This family represents a conserved domain which is found in a number of eukaryotic proteins including CED-12, ELMO I and ELMO II. ELMO1 is a component of signalling pathways that regulate phagocytosis and cell migration and is the mammalian orthologue of the C. elegans gene, ced-12. CED-12 is required for the engulfment of dying cells and cell migration. In mammalian cells, ELMO1 interacts with Dock180 as part of the CrkII/Dock180/Rac pathway responsible for phagocytosis and cell migration. ELMO1 is ubiquitously expressed, although its expression is highest in the spleen, an organ rich in immune cells [1]. ELMO1 has a PH domain and a polyproline sequence motif at its C terminus which are not present in this alignment.

Literature references

  1. Gumienny TL, Brugnera E, Tosello-Trampont AC, Kinchen JM, Haney LB, Nishiwaki K, Walk SF, Nemergut ME, Macara IG, Francis R, Schedl T, Qin Y, Van Aelst L, Hengartner MO, Ravichandran KS; , Cell 2001;107:27-41.: CED-12/ELMO, a novel member of the CrkII/Dock180/Rac pathway, is required for phagocytosis and cell migration. PUBMED:11595183 EPMC:11595183


External database links

This tab holds annotation information from the InterPro database.

InterPro entry IPR006816

This entry represents the ELMO (EnguLfment and Cell MOtility) domain, which is found in a number of eukaryotic proteins involved in the cytoskeletal rearrangements required for phagocytosis of apoptotic cells and cell motility, including CED-12, ELMO-1 and ELMO-2.

ELMO-1 and ELMO-2 are components of signalling pathways that regulate phagocytosis and cell migration and are mammalian orthologues of the Caenorhabditis elegans gene, ced-12 that is required for the engulfment of dying cells and cell migration. ELMO-1/2 act in association with DOCK1 and CRK. ELMO-1/2 interact with the SH3-domain of DOCK1 via an SH3-binding site to enhance the guanine nucleotide exchange factor (GEF) activity of DOCK1. ELMO-1/2 could be part of a complex with DOCK1 and Rac1 that could be required to activate Rac Rho small GTPases. Regulatory GTPases in the Ras superfamily employ a cycle of alternating GTP binding and hydrolysis, controlled by guanine nucleotide exchange factors and GTPase-activating proteins (GAPs), as essential features of their actions in cells. Within the Ras superfamily, the Arf family is composed of 30 members, including 22 Arf-like (Arl) proteins. The ELMO domain has been proposed to be a GAP domain for ARL2 and other members of the Arf family [PUBMED:17452337].

Gene Ontology

The mapping between Pfam and Gene Ontology is provided by InterPro. If you use this data please cite InterPro.

Domain organisation

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

Loading domain graphics...

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
(60)
Full
(873)
Representative proteomes NCBI
(801)
Meta
(13)
RP15
(181)
RP35
(274)
RP55
(395)
RP75
(533)
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
(60)
Full
(873)
Representative proteomes NCBI
(801)
Meta
(13)
RP15
(181)
RP35
(274)
RP55
(395)
RP75
(533)
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
(60)
Full
(873)
Representative proteomes NCBI
(801)
Meta
(13)
RP15
(181)
RP35
(274)
RP55
(395)
RP75
(533)
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: Pfam-B_3095 (release 7.5)
Previous IDs: DUF609;
Type: Family
Author: Mifsud W
Number in seed: 60
Number in full: 873
Average length of the domain: 171.00 aa
Average identity of full alignment: 26 %
Average coverage of the sequence by the domain: 34.37 %

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 20.6 20.6
Trusted cut-off 21.8 21.9
Noise cut-off 20.4 20.2
Model length: 170
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.