domain in bacterial beta-glucosidases other glycosidases, glycosyltransferases, proteases, amidases, yeast adhesins, and bacterial toxins.

PA14 domain. This domain forms an insert in bacterial beta-glucosidases and is found in other glycosidases, glycosyltransferases, proteases, amidases, yeast adhesins, and bacterial toxins, including anthrax protective antigen (PA). The domain also occurs in a Dictyostelium prespore-cell-inducing factor Psi and in fibrocystin, the mammalian protein whose mutation leads to polycystic kidney and hepatic disease. The crystal structure of PA shows that this domain (named PA14 after its location in the PA20 pro-peptide) has a beta-barrel structure. The PA14 domain sequence suggests a binding function, rather than a catalytic role. The PA14 domain distribution is compatible with carbohydrate binding.

Alpha-L-arabinofuranosidase [Carbohydrate transport and metabolism].

Type I dockerin repeat domain. Bacterial cohesin domains bind to a complementary protein domain named dockerin, and this interaction is required for the formation of the cellulosome, a cellulose-degrading complex. The cellulosome consists of scaffoldin, a noncatalytic scaffolding polypeptide, that comprises repeating cohesion modules and a single carbohydrate-binding module (CBM). Specific calcium-dependent interactions between cohesins and dockerins appear to be essential for cellulosome assembly. This subfamily represents type I dockerins, which are responsible for anchoring a variety of enzymatic domains to the complex.

Alpha-L-arabinofuranosidase C-terminus. This entry represents the C terminus (approximately 200 residues) of bacterial and eukaryotic alpha-L-arabinofuranosidase. This catalyses the hydrolysis of non-reducing terminal alpha-L-arabinofuranosidic linkages in L-arabinose-containing polysaccharides.

ChainA, Anti-sigma-I factor RsgI3 [Acetivibrio thermocellus],6QE7_B Chain B, Anti-sigma-I factor RsgI3 [Acetivibrio thermocellus],6QE7_C Chain C, Anti-sigma-I factor RsgI3 [Acetivibrio thermocellus]

ChainA, PA14 domain-containing protein [Acetivibrio clariflavus]

ChainAAA, MgGH51 [Meripilus giganteus],6ZPV_AAA Chain AAA, MgGH51 [Meripilus giganteus],6ZPW_AAA Chain AAA, MgGH51 [Meripilus giganteus],6ZPX_AAA Chain AAA, MgGH51 [Meripilus giganteus],6ZPY_AAA Chain AAA, MgGH51 [Meripilus giganteus],6ZPZ_AAA Chain AAA, MgGH51 [Meripilus giganteus],6ZQ0_AAA Chain AAA, MgGH51 [Meripilus giganteus],6ZQ1_AAA Chain AAA, MgGH51 [Meripilus giganteus]

1.7Astructure of 2-fluorohistidine labeled Protective Antigen [Bacillus anthracis],3Q8F_A Crystal structure of 2-Fluorohistine labeled Protective Antigen (pH 5.8) [Bacillus anthracis]

CrystalStructure of Anthrax Protective Antigen (Membrane Insertion Loop Deleted) Mutant S337C N664C to 2.06-A resolution [Bacillus anthracis]

Alpha-L-arabinofuranosidase 2 OS=Arabidopsis thaliana OX=3702 GN=ASD2 PE=2 SV=1

Alpha-L-arabinofuranosidase 1 OS=Arabidopsis thaliana OX=3702 GN=ASD1 PE=1 SV=1

Extracellular exo-alpha-L-arabinofuranosidase OS=Streptomyces chartreusis OX=1969 PE=1 SV=1

Alpha-L-arabinofuranosidase A OS=Penicillium canescens OX=5083 GN=abfA PE=1 SV=1

Anti-sigma-I factor RsgI3 OS=Acetivibrio thermocellus (strain ATCC 27405 / DSM 1237 / JCM 9322 / NBRC 103400 / NCIMB 10682 / NRRL B-4536 / VPI 7372) OX=203119 GN=rsgI3 PE=1 SV=1