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360  structures 8282  species 0  interactions 69846  sequences 451  architectures

Clan: FMN-binding (CL0336)


FMN-binding split barrel superfamily Add an annotation

This includes those related to the ferredoxin reductase-like FAD-binding domain and those that are Pyridoxine 5'-phosphate oxidase (PNP)-like.

This clan contains 10 families and the total number of domains in the clan is 69846. The clan was built by P Coggill.


This clan contains the following 10 member families:

DUF2255 DUF447 F420H2_quin_red Flavin_Reduct FMN_bind_2 Putative_PNPOx Pyrid_ox_like Pyrid_oxidase_2 Pyridox_ox_2 Pyridox_oxase_2

External database links

Domain organisation

Below is a listing of the unique domain organisations or architectures from this clan. More...

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The table below shows the number of occurrences of each domain throughout the sequence database. More...

Pfam family Num. domains Alignment
Putative_PNPOx (PF01243) 26537 (38.0%) View
Flavin_Reduct (PF01613) 19864 (28.4%) View
Pyridox_ox_2 (PF12900) 6402 (9.2%) View
F420H2_quin_red (PF04075) 5447 (7.8%) View
FMN_bind_2 (PF04299) 3364 (4.8%) View
Pyrid_ox_like (PF16242) 3201 (4.6%) View
Pyrid_oxidase_2 (PF13883) 2693 (3.9%) View
Pyridox_oxase_2 (PF12766) 1436 (2.1%) View
DUF447 (PF04289) 489 (0.7%) View
DUF2255 (PF10012) 413 (0.6%) View
Total: 10 Total: 69846 Clan alignment

Please note: Clan alignments can be very large and can cause problems for some browsers. Read the note above before viewing.

Family relationships

This diagram shows the relationships between members of this clan. More...

Species distribution

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This tree shows the occurrence of the domains in this clan across different species. More...



For those sequences which have a structure in the Protein DataBank, we use the mapping between UniProt, PDB and Pfam coordinate systems from the MSD group, to allow us to map Pfam domains onto UniProt three-dimensional structures. The table below shows the mapping between the Pfam families in this clan, the corresponding UniProt entries, and the region of the three-dimensional structures that are available for that sequence.

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