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2  structures 113  species 0  interactions 522  sequences 157  architectures

Family: DSL (PF01414)

Summary: Delta serrate ligand

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.

Delta serrate ligand Provide feedback

No Pfam abstract.

Literature references

  1. Fitzgerald K, Greenwald I; , Development 1995;121:4275-4282.: Interchangeability of Caenorhabditis elegans DSL proteins and intrinsic signalling activity of their extracellular domains in vivo. PUBMED:8575327 EPMC:8575327

  2. Rebay I, Fleming RJ, Fehon RG, Cherbas L, Cherbas P, Artavanis-Tsakonas S; , Cell 1991;67:687-699.: Specific EGF repeats of Notch mediate interactions with Delta and Serrate: implications for Notch as a multifunctional receptor. PUBMED:1657403 EPMC:1657403

  3. Artavanis-Tsakonas S, Matsuno K, Fortini ME; , Science 1995;268:225-232.: Notch signaling. PUBMED:7716513 EPMC:7716513


Internal database links

External database links

This tab holds annotation information from the InterPro database.

InterPro entry IPR001774

Ligands of the Delta/Serrate/lag-2 (DSL) family and their receptors, members of the lin-12/Notch family, mediate cell-cell interactions that specify cell fate in invertebrates and vertebrates. In Caenorhabditis elegans, two DSL genes, lag-2 and apx-1, influence different cell fate decisions during development [PUBMED:8575327]. Molecular interaction between Notch and Serrate, another EGF-homologous transmembrane protein containing a region of striking similarity to Delta, has been shown and the same two EGF repeats of Notch may also constitute a Serrate binding domain [PUBMED:1657403, PUBMED:7716513].

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...

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Pfam Clan

This family is a member of clan EGF (CL0001), which has the following description:

Members of this clan all belong to the EGF superfamily. This particular superfamily is characterised as having least 6 cysteines residues. These cysteine form disulphide bonds, in the order 1-3, 2-4, 5-6, which are essential for the stability of the EGF fold. These disulphide bonds are stacked in a ladder-like arrangement. The Laminin EGF family is distinguished by having an an additional disulphide bond. The function of the domains within this family remains unclear, but they are though to largely perform a structural role. More often than not, there domains are arranged a tandem repeats in extracellular proteins.

The clan contains the following 13 members:

cEGF DSL EGF EGF_2 EGF_3 EGF_alliinase EGF_CA EGF_MSP1_1 FOLN FXa_inhibition hEGF Laminin_EGF Tme5_EGF_like

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
(18)
Full
(522)
Representative proteomes NCBI
(473)
Meta
(0)
RP15
(117)
RP35
(141)
RP55
(227)
RP75
(298)
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1Cannot generate PP/Heatmap alignments for seeds; no PP data available

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

Format an alignment

  Seed
(18)
Full
(522)
Representative proteomes NCBI
(473)
Meta
(0)
RP15
(117)
RP35
(141)
RP55
(227)
RP75
(298)
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
(18)
Full
(522)
Representative proteomes NCBI
(473)
Meta
(0)
RP15
(117)
RP35
(141)
RP55
(227)
RP75
(298)
Raw Stockholm Download   Download   Download   Download   Download   Download   Download    
Gzipped 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.

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: SMART
Previous IDs: none
Type: Domain
Author: Ponting CP, Schultz J, Bork P
Number in seed: 18
Number in full: 522
Average length of the domain: 61.00 aa
Average identity of full alignment: 42 %
Average coverage of the sequence by the domain: 8.53 %

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 28.9 28.9
Trusted cut-off 29.5 28.9
Noise cut-off 28.4 28.8
Model length: 63
Family (HMM) version: 14
Download: download the raw HMM for this family

Species distribution

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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...

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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 DSL domain has been found. There are 2 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.

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