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6-hydroxymethyl-7,8-dihydropterin pyrophosphokinase, HPPK superfamily

SCOP classification
Root:   SCOP hierarchy in SUPERFAMILY [ 0] (11)
Class:   Alpha and beta proteins (a+b) [ 53931] (376)
Fold:   Ferredoxin-like [ 54861] (59)
Superfamily:   6-hydroxymethyl-7,8-dihydropterin pyrophosphokinase, HPPK [ 55083]
Families:   6-hydroxymethyl-7,8-dihydropterin pyrophosphokinase, HPPK [ 55084]


Superfamily statistics
Genomes (2,546) Uniprot 2018_03 genome PDB chains (SCOP 1.75)
Domains 2,921 23,168 5
Proteins 2,894 23,030 5


Functional annotation
General category Metabolism
Detailed category Coenzyme metabolism and transport

Document:
Function annotation of SCOP domain superfamilies

Enzyme Commission (EC)

(show details)
EC termFDR (all)SDEO levelAnnotation (direct or inherited)
Enzyme Commission (EC)Lyases0.03299Least InformativeInherited
Enzyme Commission (EC)Transferring alkyl or aryl groups, other than meth1Moderately InformativeInherited
Enzyme Commission (EC)Diphosphotransferases0InformativeDirect
Enzyme Commission (EC)Aldehyde-lyases0.00000000007695InformativeDirect
Enzyme Commission (EC)2-amino-4-hydroxy-6-hydroxymethyldihydropteridine 0Highly InformativeDirect

Document: EC annotation of SCOP domains

Enzyme Commission (EC)

(show details)
EC termFDR (all)SDEC levelAnnotation (direct or inherited)
Enzyme Commission (EC)Transferring phosphorus-containing groups0Least InformativeDirect
Enzyme Commission (EC)Lyases0.06512Least InformativeInherited
Enzyme Commission (EC)Carbon-carbon lyases0.0001113Moderately InformativeDirect
Enzyme Commission (EC)Transferring alkyl or aryl groups, other than methyl groups1InformativeInherited
Enzyme Commission (EC)Diphosphotransferases0Highly InformativeDirect
Enzyme Commission (EC)Aldehyde-lyases0.0000000001627Highly InformativeDirect

Document: EC annotation of SCOP domains

InterPro annotation
Cross references IPR000550 SSF55083 Protein matches
Abstract All organisms require reduced folate cofactors for the synthesis of a variety of metabolites. Most microorganisms must synthesise folate de novo because they lack the active transport system of higher vertebrate cells which allows these organisms to use dietary folates. Enzymes involved in folate biosynthesis are therefore targets for a variety of antimicrobial agents such as trimethoprim or sulphonamides. 7,8-dihydro-6-hydroxymethylpterin-pyrophosphokinase (HPPK) catalyzes the attachment of pyrophosphate to 6-hydroxymethyl-7,8-dihydropterin to form 6-hydroxymethyl-7,8-dihydropteridine pyrophosphate. This is the first step in a three-step pathway leading to 7,8 dihydrofolate. Bacterial HPPK (gene folK or sulD) [PubMed1325970] is a protein of 160 to 270 amino acids. In the lower eukaryote Pneumocystis carinii, HPPK is the central domain of a multifunctional folate synthesis enzyme (gene fas) [PubMed1313386].

InterPro database


PDBeMotif information about ligands, sequence and structure motifs
Cross references PDB entries
Ligand binding statistics
Nucleic-acid binding statistics
Occurrence of secondary structure elements
Occurrence of small 3D structural motifs

PDBeMotif resource

Jump to [ Top of page · SCOP classification · InterPro annotation · PDBeMotif links · Functional annotation · Enzyme Commission (EC) · Enzyme Commission (EC) ]

Internal database links

Browse genome assignments for this superfamily. The SUPERFAMILY hidden Markov model library has been used to carry out SCOP domain assignments to all genomes at the superfamily level.


Alignments of sequences to 2 models in this superfamily are available by clicking on the 'Alignments' icon above. PDB sequences less than 40% identical are shown by default, but any other sequence(s) may be aligned. Select PDB sequences, genome sequences, or paste in or upload your own sequences.


Browse and view proteins in genomes which have different domain combinations including a 6-hydroxymethyl-7,8-dihydropterin pyrophosphokinase, HPPK domain.


Examine the distribution of domain superfamilies, or families, across the major taxonomic kingdoms or genomes within a kingdom. This gives an immediate impression of how superfamilies, or families, are restricted to certain kingdoms of life.


Explore domain occurrence network where nodes represent genomes and edges are domain architectures (shared between genomes) containing the superfamily of interest.

There are 2 hidden Markov models representing the 6-hydroxymethyl-7,8-dihydropterin pyrophosphokinase, HPPK superfamily. Information on how the models are built, and plots showing hydrophobicity, match emmission probabilities and insertion/deletion probabilities can be inspected.


Jump to [ Top of page · SCOP classification · InterPro annotation · PDBeMotif links · Functional annotation · Enzyme Commission (EC) · Enzyme Commission (EC) · Internal database links ]