Summary: Protamine P1
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Protamine P1 Provide feedback
No Pfam abstract.
External database links
PROSITE: | PDOC00047 |
This tab holds annotation information from the InterPro database.
InterPro entry IPR000221
Protamines are small, highly basic proteins, that substitute for histones in sperm chromatin during the haploid phase of spermatogenesis. They pack sperm DNA into a highly condensed, stable and inactive complex. There are two different types of mammalian protamine, called P1 and P2. P1 has been found in all species studied, while P2 is sometimes absent. There seems to be a single type of avian protamine whose sequence is closely related to that of mammalian P1 [ PUBMED:2808336 ].
Gene Ontology
The mapping between Pfam and Gene Ontology is provided by InterPro. If you use this data please cite InterPro.
Cellular component | nucleus (GO:0005634) |
nucleosome (GO:0000786) | |
Molecular function | DNA binding (GO:0003677) |
Biological process | spermatogenesis (GO:0007283) |
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 (reference proteomes) using the family HMM. We also generate alignments using four representative proteomes (RP) sets and the UniProtKB 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 (6) |
Full (42) |
Representative proteomes | UniProt (189) |
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RP15 (3) |
RP35 (4) |
RP55 (21) |
RP75 (37) |
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Jalview | |||||||
HTML | |||||||
PP/heatmap | 1 |
1Cannot generate PP/Heatmap alignments for seeds; no PP data available
Key:
available,
not generated,
— not available.
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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 (6) |
Full (42) |
Representative proteomes | UniProt (189) |
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RP15 (3) |
RP35 (4) |
RP55 (21) |
RP75 (37) |
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Raw Stockholm | |||||||
Gzipped |
You can also download a FASTA format file containing the full-length sequences for all sequences in the full alignment.
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
Seed source: | Prosite |
Previous IDs: | protamine_P1; |
Type: | Family |
Sequence Ontology: | SO:0100021 |
Author: |
Finn RD |
Number in seed: | 6 |
Number in full: | 42 |
Average length of the domain: | 47.2 aa |
Average identity of full alignment: | 74 % |
Average coverage of the sequence by the domain: | 95.02 % |
HMM information
HMM build commands: |
build method: hmmbuild --amino -o /dev/null HMM SEED
search method: hmmsearch -Z 61295632 -E 1000 --cpu 4 HMM pfamseq
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Model details: |
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Model length: | 49 | ||||||||||||
Family (HMM) version: | 23 | ||||||||||||
Download: | download the raw HMM for this family |
Species distribution
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Selections
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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...
Tree controls
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AlphaFold Structure Predictions
The list of proteins below match this family and have AlphaFold predicted structures. Click on the protein accession to view the predicted structure.
trRosetta Structure
The structural model below was generated by the Baker group with the trRosetta software using the Pfam UniProt multiple sequence alignment.
The InterPro website shows the contact map for the Pfam SEED alignment. Hovering or clicking on a contact position will highlight its connection to other residues in the alignment, as well as on the 3D structure.
- View the contact map and structural model in InterPro
- Download the model in PDB format
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