Cortical fragment-lytic enzyme (CFLE) is a peptidoglycan hydrolase involved in bacterial endospore germination. CFLE is expressed as an inactive preprotein (called SleB) in the forespore compartment of sporulating cells. SleB translocates across the forespore inner membrane and is deposited as a mature enzyme in the cortex layer of the spore. As part of a sensory mechanism capable of initiating germination, CFLE degrades a spore-specific peptidoglycan constituent called muramic-acid delta-lactam that comprises the outer cortex. CFLE has a C-terminal glycosyl hydrolase family 18 (GH18) catalytic domain as well as two N-terminal LysM peptidoglycan-binding domains. In addition to SleB, this family includes YaaH, YdhD, and YvbX from Bacillus subtilis.

Spore germination protein YaaH [Cell cycle control, cell division, chromosome partitioning].

GH18 domain of an uncharacterized family of bacterial proteins, which share a common three-domain architecture: an N-terminal glycosyl hydrolase family 18 (GH18) domain, a glycosyl transferase family 2 domain, and a C-terminal polysaccharide deacetylase domain.

NEAT domain-containing leucine-rich repeat protein. Members of this family have an N-terminal NEAT (near transporter) domain often associated with iron transport, followed by a leucine-rich repeat region with significant sequence similarity to the internalins of Listeria monocytogenes. However, since Bacillus cereus (from which this protein was described, in PMID:16978259) is not considered an intracellular pathogen, and the function may be iron transport rather than internalization, applying the name "internalin" to this family probably would be misleading.

NEAT domain-containing leucine-rich repeat protein. Members of this family have an N-terminal NEAT (near transporter) domain often associated with iron transport, followed by a leucine-rich repeat region with significant sequence similarity to the internalins of Listeria monocytogenes. However, since Bacillus cereus (from which this protein was described, in PMID:16978259) is not considered an intracellular pathogen, and the function may be iron transport rather than internalization, applying the name "internalin" to this family probably would be misleading.

ChainA, Putative sporulation-specific glycosylase ydhD [Bacillus subtilis subsp. subtilis str. 168],3CZ8_B Chain B, Putative sporulation-specific glycosylase ydhD [Bacillus subtilis subsp. subtilis str. 168]

Thestructure of the SLH domain from B. anthracis surface array protein at 1.8A [Bacillus anthracis]

Crystalstructure of the SLH domain of Sap from Bacillus anthracis in complex with a pyruvylated SCWP unit [Bacillus anthracis]

Amylopullulanase OS=Thermoanaerobacterium thermosulfurigenes OX=33950 GN=amyB PE=3 SV=2

Putative sporulation-specific glycosylase YdhD OS=Bacillus subtilis (strain 168) OX=224308 GN=ydhD PE=1 SV=2

Exoglucanase XynX OS=Acetivibrio thermocellus OX=1515 GN=xynX PE=3 SV=1

Endo-1,4-beta-xylanase A OS=Paenibacillus sp. (strain JDR-2) OX=324057 GN=xynA1 PE=1 SV=1

Cell surface glycoprotein 1 OS=Acetivibrio thermocellus (strain ATCC 27405 / DSM 1237 / JCM 9322 / NBRC 103400 / NCIMB 10682 / NRRL B-4536 / VPI 7372) OX=203119 GN=olpB PE=3 SV=2