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0  structures 115  species 0  interactions 186  sequences 5  architectures

Family: Strumpellin (PF10266)

Summary: Hereditary spastic paraplegia protein strumpellin

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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.

Hereditary spastic paraplegia protein strumpellin Provide feedback

This is a family of proteins conserved from plants to humans, in which two closely situated point mutations in the human protein lead to the condition of hereditary spastic paraplegia. Strumpellin contains one known domain called a spectrin repeat that consists of three alpha-helices of a characteristic length wrapped in a left-handed coiled coil. The spectrin proteins have multiple copies of this repeat, which can then form multimers in the cell. Spectrin associates with the cell membrane via spectrin repeats in the ankyrin protein. The spectrin repeat is a structural platform for cytoskeletal protein assemblies.

Literature references

  1. Valdmanis PN, Meijer IA, Reynolds A, Lei A, MacLeod P, Schlesinger D, Zatz M, Reid E, Dion PA, Drapeau P, Rouleau GA; , Am J Hum Genet. 2007;80:152-161.: Mutations in the KIAA0196 gene at the SPG8 locus cause hereditary spastic paraplegia. PUBMED:17160902 EPMC:17160902


External database links

This tab holds annotation information from the InterPro database.

InterPro entry IPR019393

The WASH complex is present at the surface of endosomes and recruits and activates the Arp2/3 complex to induce actin polymerisation. The WASH complex plays a key role in the fission of tubules that serve as transport intermediates during endosome sorting [PUBMED:19922875].

The WASH complex consists of several subunits: F-actin-capping protein subunit alpha (CAPZA1, CAPZA2 or CAPZA3), F-actin-capping protein subunit beta (CAPZB), WASH (WASH1, WASH2P, WASH3P, WASH4P, WASH5P or WASH6P), FAM21 (FAM21A, FAM21B or FAM21C), KIAA1033, KIAA0196 (strumpellin) and CCDC53.

Strumpellin contains one known domain called a spectrin repeat that consists of three alpha-helices of a characteristic length wrapped in a left-handed coiled coil. The spectrin proteins have multiple copies of this repeat, which can then form multimers in the cell. Spectrin associates with the cell membrane via spectrin repeats in the ankyrin protein. The spectrin repeat is a structural platform for cytoskeletal protein assemblies. Two closely situated point mutations in human strumpellin lead to the condition of hereditary spastic paraplegia.

Domain organisation

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

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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...

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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
(12)
Full
(186)
Representative proteomes NCBI
(181)
Meta
(15)
RP15
(57)
RP35
(72)
RP55
(102)
RP75
(130)
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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
(12)
Full
(186)
Representative proteomes NCBI
(181)
Meta
(15)
RP15
(57)
RP35
(72)
RP55
(102)
RP75
(130)
Alignment:
Format:
Order:
Sequence:
Gaps:
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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
(12)
Full
(186)
Representative proteomes NCBI
(181)
Meta
(15)
RP15
(57)
RP35
(72)
RP55
(102)
RP75
(130)
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.

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: KOGs (KOG3666)
Previous IDs: none
Type: Family
Author: KOGs, Finn RD, Coggill PC
Number in seed: 12
Number in full: 186
Average length of the domain: 759.30 aa
Average identity of full alignment: 41 %
Average coverage of the sequence by the domain: 92.15 %

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 25.0 25.0
Trusted cut-off 45.2 32.3
Noise cut-off 21.5 23.4
Model length: 1081
Family (HMM) version: 4
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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