CAZyme Information: KZZ88836.1

Basic Information

• Species: Ascosphaera apis
• Lineage: Ascomycota; Eurotiomycetes; ; Ascosphaeraceae; Ascosphaera; Ascosphaera apis
• CAZyme ID: KZZ88836.1
• CAZy Family: GH16
• CAZyme Description: NodB homology domain-containing protein [Source:UniProtKB/TrEMBL;Acc:A0A167WH12]

CAZyme Property

Protein Length	CGC	Molecular Weight	Isoelectric Point
258	AZGZ01000023|CGC2	29075.45	7.5494

Genome Property

Genome Version/Assembly ID	Genes	Strain NCBI Taxon ID	Non Protein Coding Genes	Protein Coding Genes
FungiDB-61_AapisARSEF7405	6442	392613	0	6442

• Gene Location: location=AZGZ01000023:38260-39220(-)

Full Sequence      

MSFLVKLILSLILLLFISVLIIYRPPFILIRLLSHLNPDVLWFVRIPSSPSNRSRNHTRT
IALTIDDGPTPYTRDLSSVLDAYNARATFFIIGSHVKGREDVLREIVSRGHEVGNHTMYD
VPSKNLSVEELKQSIEETDRIIHDALSQTQEGDDQQDEQLRGITSFFRPGSGFFTTPMRS
LISPMGKQLVLGCIFPHDPIISSPAINARHVLSCVRDGGIIVMHDGRPWSAESVRRILDG
LAKREEKRGEKWDVVNGV

Enzyme Prediction     

No EC number prediction in KZZ88836.1.

CAZyme Signature Domains

Family	Start	End	Evalue	family coverage
CE4	54	148	3.3e-22	0.7230769230769231

CDD Domains     

Cdd ID	Domain	E-Value	qStart	qEnd	sStart	sEnd	Domain Description
200581	CE4_NodB_like_2	7.58e-63	59	244	1	180	Catalytic NodB homology domain of uncharacterized chitin deacetylases and hypothetical proteins. This family includes some uncharacterized chitin deacetylases and hypothetical proteins, mainly from eukaryotes. Although their biological function is unknown, members in this family show high sequence homology to the catalytic NodB homology domain of Colletotrichum lindemuthianum chitin deacetylase (endo-chitin de-N-acetylase, ClCDA, EC 3.5.1.41), which catalyzes the hydrolysis of N-acetamido groups of N-acetyl-D-glucosamine residues in chitin, converting it to chitosan in fungal cell walls. Like ClCDA, this family is a member the carbohydrate esterase 4 (CE4) superfamily.
213022	CE4_NodB_like_6s_7s	1.35e-43	59	241	1	170	Catalytic NodB homology domain of rhizobial NodB-like proteins. This family belongs to the large and functionally diverse carbohydrate esterase 4 (CE4) superfamily, whose members show strong sequence similarity with some variability due to their distinct carbohydrate substrates. It includes many rhizobial NodB chitooligosaccharide N-deacetylase (EC 3.5.1.-)-like proteins, mainly from bacteria and eukaryotes, such as chitin deacetylases (EC 3.5.1.41), bacterial peptidoglycan N-acetylglucosamine deacetylases (EC 3.5.1.-), and acetylxylan esterases (EC 3.1.1.72), which catalyze the N- or O-deacetylation of substrates such as acetylated chitin, peptidoglycan, and acetylated xylan. All members of this family contain a catalytic NodB homology domain with the same overall topology and a deformed (beta/alpha)8 barrel fold with 6- or 7 strands. Their catalytic activity is dependent on the presence of a divalent cation, preferably cobalt or zinc, and they employ a conserved His-His-Asp zinc-binding triad closely associated with the conserved catalytic base (aspartic acid) and acid (histidine) to carry out acid/base catalysis. Several family members show diversity both in metal ion specificities and in the residues that coordinate the metal.
200578	CE4_CtAXE_like	2.09e-36	61	244	3	170	Catalytic NodB homology domain of Clostridium thermocellum acetylxylan esterase and its bacterial homologs. This family is represented by Clostridium thermocellum acetylxylan esterase (CtAXE, EC 3.1.1.72), a member of the carbohydrate esterase 4 (CE4) superfamily. CtAXE deacetylates O-acetylated xylan, a key component of plant cell walls. It shows no detectable activity on generic esterase substrates including para-nitrophenyl acetate. It is specific for sugar-based substrates and will precipitate acetylxylan, as a consequence of deacetylation. CtAXE is a monomeric protein containing a catalytic NodB homology domain with the same overall topology and a deformed (beta/alpha)8 barrel fold as other CE4 esterases. However, due to differences in the topography of the substrate-binding groove, the chemistry of the active center, and metal ion coordination, CtAXE has different metal ion preference and lacks activity on N-acetyl substrates. It is significantly activated by Co2+. Moreover, CtAXE displays distinctly different ligand coordination to the metal ion, utilizing an aspartate, a histidine, and four water molecules, as opposed to the conserved His-His-Asp zinc-binding triad of other CE4 esterases.
200582	CE4_NodB_like_3	1.19e-34	59	244	1	180	Catalytic NodB homology domain of uncharacterized bacterial polysaccharide deacetylases. This family includes many uncharacterized bacterial polysaccharide deacetylases. Although their biological function still remains unknown, members in this family show high sequence homology to the catalytic NodB homology domain of Streptococcus pneumoniae polysaccharide deacetylase PgdA (SpPgdA), which is an extracellular metal-dependent polysaccharide deacetylase with de-N-acetylase activity toward a hexamer of chitooligosaccharide N-acetylglucosamine, but not shorter chitooligosaccharides or a synthetic peptidoglycan tetrasaccharide. Like SpPgdA, this family is a member of the carbohydrate esterase 4 (CE4) superfamily.
200571	CE4_SpPgdA_BsYjeA_like	4.41e-31	59	245	1	171	Catalytic NodB homology domain of Streptococcus pneumoniae peptidoglycan deacetylase PgdA, Bacillus subtilis BsYjeA protein, and their bacterial homologs. This family is represented by Streptococcus pneumoniae peptidoglycan GlcNAc deacetylase (SpPgdA), a member of the carbohydrate esterase 4 (CE4) superfamily. SpPgdA protects gram-positive bacterial cell wall from host lysozymes by deacetylating peptidoglycan N-acetylglucosamine (GlcNAc) residues. It consists of three separate domains: N-terminal, middle and C-terminal (catalytic) domains. The catalytic NodB homology domain is similar to the deformed (beta/alpha)8 barrel fold adopted by other CE4 esterases, which harbors a mononuclear metalloenzyme employing a conserved His-His-Asp zinc-binding triad closely associated with conserved catalytic base (aspartic acid) and acid (histidine) to carry out acid/base catalysis. The enzyme is able to accept GlcNAc3 as a substrate, with the N-acetyl of the middle sugar being removed by the enzyme. This family also includes Bacillus subtilis BsYjeA protein encoded by the yjeA gene, which is one of the six polysaccharide deacetylase gene homologs (pdaA, pdaB/ybaN, yheN, yjeA, yxkH and ylxY) in the Bacillus subtilis genome. Although homology comparison shows that the BsYjeA protein contains a polysaccharide deacetylase domain, and was predicted to be a membrane-bound xylanase or a membrane-bound chitooligosaccharide deacetylase, more recent research indicates BsYjeA might be a novel non-specific secretory endonuclease which creates random nicks progressively on the two strands of dsDNA, resulting in highly distinguishable intermediates/products very different in chemical and physical compositions over time. In addition, BsYjeA shares several enzymatic properties with the well-understood DNase I endonuclease. Both enzymes are active on ssDNA and dsDNA, both generate random nicks, and both require Mg2+ or Mn2+ for hydrolytic activity.

CAZyme Hits     

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End
CBX92276.1|CE4	4.41e-61	21	244	17	232
CAK43258.1|CE4	4.22e-58	21	258	62	300
QRD01896.1|CE4	6.74e-58	21	258	17	232
CAE7193617.1|CE4	1.46e-57	21	244	41	248
QMW29882.1|CE4	3.21e-54	22	244	18	224

PDB Hits     

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
7FBW_A	4.54e-22	59	256	117	297	Chain A, Predicted xylanase/chitin deacetylase [Caldanaerobacter subterraneus subsp. tengcongensis MB4]
2C1G_A	8.55e-17	55	241	232	402	Structure of Streptococcus pneumoniae peptidoglycan deacetylase (SpPgdA) [Streptococcus pneumoniae R6]
2C1I_A	3.94e-16	55	241	232	402	Structure of Streptococcus pneumoniae peptidoglycan deacetylase (SpPgdA) D 275 N Mutant. [Streptococcus pneumoniae R6]
2C71_A	3.43e-15	59	252	5	182	Chain A, Glycoside Hydrolase, Family 11:clostridium Cellulosome Enzyme, Dockerin Type I:polysaccharide [Acetivibrio thermocellus],2C79_A Chain A, GLYCOSIDE HYDROLASE, FAMILY 11:CLOSTRIDIUM CELLULOSOME ENZYME, DOCKERIN TYPE I:POLYSACCHARIDE [Acetivibrio thermocellus]
5LFZ_A	7.35e-15	58	241	24	190	T48 deacetylase [Arthrobacter sp. AW19M34-1],5LGC_A T48 deacetylase with substrate [Arthrobacter sp. AW19M34-1]

Swiss-Prot Hits     

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
sp|Q81AF4|PGDA3_BACCR	2.46e-18	56	244	19	198	Peptidoglycan-N-acetylglucosamine deacetylase BC_3618 OS=Bacillus cereus (strain ATCC 14579 / DSM 31 / CCUG 7414 / JCM 2152 / NBRC 15305 / NCIMB 9373 / NCTC 2599 / NRRL B-3711) OX=226900 GN=BC_3618 PE=1 SV=1
sp|P04675|NODB_BRASP	2.76e-17	58	248	20	196	Chitooligosaccharide deacetylase OS=Bradyrhizobium sp. (strain ANU 289) OX=186901 GN=nodB PE=3 SV=2
sp|P04339|NODB_RHILV	1.34e-16	47	228	4	178	Chitooligosaccharide deacetylase OS=Rhizobium leguminosarum bv. viciae OX=387 GN=nodB PE=3 SV=1
sp|Q8DP63|PGDA_STRR6	4.82e-16	55	241	264	434	Peptidoglycan-N-acetylglucosamine deacetylase OS=Streptococcus pneumoniae (strain ATCC BAA-255 / R6) OX=171101 GN=pgdA PE=1 SV=1
sp|P02963|NODB_RHIME	6.99e-16	59	228	21	178	Chitooligosaccharide deacetylase OS=Rhizobium meliloti (strain 1021) OX=266834 GN=nodB PE=3 SV=3

SignalP and Lipop Annotations

This protein is predicted as OTHER

Other	SP_Sec_SPI	CS Position
0.987245	0.012775

TMHMM  Annotations     

Start	End
7	29