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23  structures 3244  species 0  interactions 6507  sequences 8  architectures

Family: Lipoprotein_9 (PF03180)

Summary: NLPA lipoprotein

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.

NLPA lipoprotein Provide feedback

This family of bacterial lipoproteins contains several antigenic members, that may be involved in bacterial virulence. Their precise function is unknown. However they are probably distantly related to PF00497 which are solute binding proteins.

Literature references

  1. Cooney BJ, Lo RY; , Infect Immun 1993;61:4682-4688.: Three contiguous lipoprotein genes in Pasteurella haemolytica A1 which are homologous to a lipoprotein gene in Haemophilus influenzae type b. PUBMED:8406866 EPMC:8406866

  2. Yu F, Inouye S, Inouye M; , J Biol Chem 1986;261:2284-2288.: Lipoprotein-28, a cytoplasmic membrane lipoprotein from Escherichia coli. Cloning, DNA sequence, and expression of its gene. PUBMED:3003106 EPMC:3003106


Internal database links

External database links

This tab holds annotation information from the InterPro database.

InterPro entry IPR004872

The lipoproteins in this group belong to the NlpA family. D-methionine binding lipoprotein MetQ is the main member of this group. This protein is a component of a D-methionine permease, a binding protein-dependent, ATP-driven transport system [PUBMED:12169620].

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 PBP (CL0177), which has the following description:

Periplasmic binding proteins (PBPs) consist of two large lobes that close around the bound ligand. This architecture is reiterated in transcriptional regulators, such as the lac repressors. In the process of evolution, genes encoding the PBPs have fused with genes for integral membrane proteins. Thus, diverse mammalian receptors contain extracellular ligand binding domains that are homologous to the PBPs; these include glutamate/glycine-gated ion channels such as the NMDA receptor, G protein-coupled receptors, including metabotropic glutamate, GABA-B, calcium sensing, and pheromone receptors, and atrial natriuretic peptide-guanylate cyclase receptors [2].

The clan contains the following 23 members:

DUF3834 HisG Lig_chan-Glu_bd Lipoprotein_8 Lipoprotein_9 LysR_substrate Mycoplasma_p37 NMT1 NMT1_2 OpuAC PBP_like PBP_like_2 Phosphonate-bd SBP_bac_1 SBP_bac_11 SBP_bac_3 SBP_bac_5 SBP_bac_6 SBP_bac_7 SBP_bac_8 TctC Transferrin VitK2_biosynth

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
(35)
Full
(6507)
Representative proteomes NCBI
(4106)
Meta
(60)
RP15
(211)
RP35
(490)
RP55
(731)
RP75
(955)
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HTML View    View  View  View  View     
PP/heatmap 1   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
(35)
Full
(6507)
Representative proteomes NCBI
(4106)
Meta
(60)
RP15
(211)
RP35
(490)
RP55
(731)
RP75
(955)
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
(35)
Full
(6507)
Representative proteomes NCBI
(4106)
Meta
(60)
RP15
(211)
RP35
(490)
RP55
(731)
RP75
(955)
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: Pfam-B_1418 (release 6.5)
Previous IDs: none
Type: Family
Author: Mifsud W
Number in seed: 35
Number in full: 6507
Average length of the domain: 229.70 aa
Average identity of full alignment: 38 %
Average coverage of the sequence by the domain: 86.36 %

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 20.0 20.0
Trusted cut-off 20.0 20.0
Noise cut-off 19.9 19.9
Model length: 237
Family (HMM) version: 9
Download: download the raw HMM for this family

Species distribution

Sunburst controls

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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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Tree controls

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

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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.

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 Lipoprotein_9 domain has been found. There are 23 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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