SCOP classification
Class: All alpha proteins
Fold: Four-helical up-and-down bundle
Superfamily: Nucleotidyltransferase substrate binding subunit/domain
Family: HEPN domain

Family Members
Domain: d1ufbd_ of protein: Hypothetical protein TT1696 from Species: Thermus thermophilus [TaxId: 274]
Domain: d1o3ua_ of protein: Hypothetical protein TM0613 from Species: Thermotoga maritima [TaxId: 2336]

Multiple structure based alignment (Multiprot)

Multiple Structure based Sequence alignment
Multiple Structure based Sequence alignment (HHAlign)
Integrated Structure-Sequence alignment (ClustalO)
Integrated Structure-Sequence alignment (HMMalign)

Phylogenetic Representation
Strucuture based Phylogenetic tree (Using SDM) Strucuture based Phylogenetic tree (Using TM)