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49  structures 44  species 0  interactions 55  sequences 3  architectures

Family: Aromatic_hydrox (PF11723)

Summary: Homotrimeric ring hydroxylase

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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.

Homotrimeric ring hydroxylase Provide feedback

This domain is found on aromatic hydroxylating enzymes such as 2-oxo-1,2-dihydroquinoline 8-monooxygenase from Pseudomonas putida and carbazole 1,9a-dioxygenase from Janthinobacterium. These enzymes are homotrimers and are distantly related to the typical oxygenase [2]. This domain is found C terminal to the Rieske domain which binds an iron-sulphur cluster.

Literature references

  1. Nojiri H, Ashikawa Y, Noguchi H, Nam JW, Urata M, Fujimoto Z, Uchimura H, Terada T, Nakamura S, Shimizu K, Yoshida T, Habe H, Omori T; , J Mol Biol. 2005;351:355-370.: Structure of the terminal oxygenase component of angular dioxygenase, carbazole 1,9a-dioxygenase. PUBMED:16005887 EPMC:16005887

  2. Radauer C, Lackner P, Breiteneder H; , BMC Evol Biol. 2008;8:286.: The Bet v 1 fold: an ancient, versatile scaffold for binding of large, hydrophobic ligands. PUBMED:18922149 EPMC:18922149


External database links

This tab holds annotation information from the InterPro database.

InterPro entry IPR021028

This entry represents the catalytic domain from a family of homotrimeric enzymes that hydroxylate aromatic compounds, including 2-oxo-1,2-dihydroquinoline 8-monooxygenase from Pseudomonas putida and carbazole 1,9a-dioxygenase from Janthinobacterium. The catalytic domain is found C-termnial to the iron-sulphur-binding Rieske domain and is composed of antiparallel beta sheets and alpha helices [PUBMED:16005887]. It is part of a much larger superfamily of lipid binding domains which form a common fold that works as a versatile scaffold for binding bulky ligands [PUBMED:18922149].

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 Bet_V_1_like (CL0209), which contains the following 14 members:

AHSA1 Aromatic_hydrox Bet_v_1 COXG DUF1857 DUF2505 DUF3074 DUF3211 DUF3284 IP_trans Polyketide_cyc Polyketide_cyc2 Ring_hydroxyl_A START

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
(7)
Full
(55)
Representative proteomes NCBI
(58)
Meta
(6)
RP15
(7)
RP35
(13)
RP55
(15)
RP75
(16)
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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
(7)
Full
(55)
Representative proteomes NCBI
(58)
Meta
(6)
RP15
(7)
RP35
(13)
RP55
(15)
RP75
(16)
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
(7)
Full
(55)
Representative proteomes NCBI
(58)
Meta
(6)
RP15
(7)
RP35
(13)
RP55
(15)
RP75
(16)
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_24837 (release 22.0)
Previous IDs: none
Type: Domain
Author: Radauer C, Mistry J
Number in seed: 7
Number in full: 55
Average length of the domain: 216.30 aa
Average identity of full alignment: 38 %
Average coverage of the sequence by the domain: 59.09 %

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 20.5 20.5
Trusted cut-off 20.6 20.9
Noise cut-off 20.4 19.0
Model length: 240
Family (HMM) version: 3
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 Aromatic_hydrox domain has been found. There are 49 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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