Terebridae (auger shells) (taxid:57610)

The Terebridae is a family of small to large predatory marine gastropods. These gastropods have extremely high spired shells with numerous whorls, and the common name "auger snail" refers to the resemblance of their shells to drill bits.

These snails are sand-dwelling carnivores which live in warmer waters. In most species, a venomous barb similar to that of the cone snails, is used to stun and immobilize prey, which typically consists of various marine worms.

  
Terebra subulata (Photo courtesy of Juliette Gorson).                Hastula hectica (Photo courtesy of Yves Terryn).
Use of photos governed by creative commons noncommercial license.



The table below shows the cysteine frameworks (using the Conus nomenclature) that are found in this family of gastropods.

Cysteine framework	number of Cys	Cys pattern	UniProtKB entries or reference
I	4	CC-C-C
		α2/8 (CCxxCxxxxxxxxC
		α4/4 (CCxxCxxxxxxxxC
		α4/5 (CCxxCxxxxxxxxC
VI/VII	6	C-C-CC-C-C
VIII	10	C-C-C-C-C-C-C-C-C-C
IX	6	C-C-C-C-C-C
XI	8	C-C-CC-CC-C-C
XIII	8	C-C-C-CC-C-C-C
XIV	4	C-C-C-C
XV	8	C-C-CC-C-C-C-C
XVI	4	C-C-CC
XVII	8	C-C-CC-C-CC-C
XXII	8	C-C-C-C-C-C-C-C
Novel-8-cys	8	C-C-C-C-C-CCC
Novel-10-cys	10	C-CC-C-C-C-C-C-C-C
Novel-12-cys	12	C-CC-CC-C-C-C-C-C-C-C

The table below shows the classification of teretoxins based on similarities in precursor signal peptide sequences.

Protein family or Superfamily in UniProtKB	UniProtKB entries or reference
Teretoxin A (TA) superfamily
Teretoxin B (TB) superfamily
Teretoxin C (TC) superfamily
Teretoxin D (TD) superfamily
Teretoxin E (TE) superfamily
Teretoxin F (TF) superfamily
Teretoxin G (TG) superfamily
Teretoxin H (TH) superfamily
Teretoxin I (TI) superfamily
Teretoxin J (TJ) superfamily
Teretoxin K (TK) superfamily
Teretoxin L (TL) superfamily
Teretoxin M (TM ) superfamily
Teretoxin N (TN) superfamily
Vasopressin/oxytocin family
Porin family