CAZyme Information: QRD94341.1

Basic Information

• Species: Aspergillus flavus
• Lineage: Ascomycota; Eurotiomycetes; ; Aspergillaceae; Aspergillus; Aspergillus flavus
• CAZyme ID: QRD94341.1
• CAZy Family: GT57
• CAZyme Description: polysaccharide deacetylase

CAZyme Property

Protein Length	CGC	Molecular Weight	Isoelectric Point
431		48845.51	7.4266

Genome Property

Genome Version/Assembly ID	Genes	Strain NCBI Taxon ID	Non Protein Coding Genes	Protein Coding Genes
FungiDB-61_AflavusNRRL3357_2020	13958	N/A	249	13709

• Gene Location: location=CP044623:2718717-2720239(-)

Full Sequence      

MHTLYLYTILALFWATLTTTTETTHRTPLQVTFLPPTTNNTPIIVDTFAHPDRNNLGSWH
GALEDLYVTQGGNYIELNASDADQTYHSQLSSTTCFDLTPYTTWILHIVYSGPPTFSISM
HQNNPSCNPSLSPYPETSDSVEASRYTAKPHWHHWRPKKQKKKDLYIPLSHFTIDHSRVL
SISLGNFYPPYTRPIKVHKVELIPTLPRGVKVPKKQPTGELRLRCTRPGSFAFGIDDGIP
SLADEVREILESEGVLVTFFVVGAPLRDNKTGFADFYKKMVEGGHQIALHSDGHSKMEGM
ESTKAIDDDIFRNIATFKSLLGVESSYFRPPYGTIGSRTREVLAKRIKNPQIINWSVDIE
DWMWADSDTPERQLKAFYRDVERGGNLAVLHYLSNSTVGYFREIIRFVKGKGLKIMRVDQ
CLEDPGAPELL

Enzyme Prediction     

EC	3.5.1.41:1

CAZyme Signature Domains

Family	Start	End	Evalue	family coverage
CE4	228	345	7.4e-18	0.8538461538461538

CDD Domains     

Cdd ID	Domain	E-Value	qStart	qEnd	sStart	sEnd	Domain Description
213022	CE4_NodB_like_6s_7s	6.52e-32	229	409	1	171	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.
200575	CE4_ClCDA_like	8.16e-29	225	418	4	197	Catalytic NodB homology domain of Colletotrichum lindemuthianum chitin deacetylase and similar proteins. This family is represented by the chitin deacetylase (endo-chitin de-N-acetylase, ClCDA, EC 3.5.1.41) from Colletotrichum lindemuthianum (also known as Glomerella lindemuthiana), which is a member of the carbohydrate esterase 4 (CE4) superfamily. ClCDA catalyzes the hydrolysis of N-acetamido groups of N-acetyl-D-glucosamine residues in chitin, converting it to chitosan in fungal cell walls. It consists of a single catalytic domain similar to the deformed (alpha/beta)8 barrel fold adopted by other CE4 esterases, which encompasses a mononuclear metalloenzyme employing 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. It possesses a highly conserved substrate-binding groove, with subtle alterations that influence substrate specificity and subsite affinity. Unlike its bacterial homologs, ClCDA contains two intramolecular disulfide bonds that may add stability to this secreted protein. The family also includes many uncharacterized deacetylases and hypothetical proteins mainly from eukaryotes, which show high sequence similarity to ClCDA.
200578	CE4_CtAXE_like	6.15e-24	232	420	4	179	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.
200569	CE4_SmPgdA_like	2.68e-23	235	412	7	184	Catalytic NodB homology domain of Streptococcus mutans polysaccharide deacetylase PgdA, Bacillus subtilis YheN, and similar proteins. This family is represented by a putative polysaccharide deacetylase PgdA from the oral pathogen Streptococcus mutans (SmPgdA) and Bacillus subtilis YheN (BsYheN), which are members of the carbohydrate esterase 4 (CE4) superfamily. SmPgdA is an extracellular metal-dependent polysaccharide deacetylase with a typical CE4 fold, with metal bound to a His-His-Asp triad. It possesses de-N-acetylase activity toward a hexamer of chitooligosaccharide N-acetylglucosamine, but not shorter chitooligosaccharides or a synthetic peptidoglycan tetrasaccharide. SmPgdA plays a role in tuning cell surface properties and in interactions with (salivary) agglutinin, an essential component of the innate immune system, most likely through deacetylation of an as-yet-unidentified polysaccharide. SmPgdA shows significant homology to the catalytic domains of peptidoglycan deacetylases from Streptococcus pneumoniae (SpPgdA) and Listeria monocytogenes (LmPgdA), both of which are involved in the bacterial defense mechanism against human mucosal lysozyme. The Bacillus subtilis genome contains six polysaccharide deacetylase gene homologs: pdaA, pdaB (previously known as ybaN), yheN, yjeA, yxkH and ylxY. The biological function of BsYheN is still unknown. This family also includes many uncharacterized polysaccharide deacetylases mainly found in bacteria.
200574	CE4_BsYlxY_like	1.05e-21	230	422	9	188	Putative catalytic NodB homology domain of uncharacterized protein YlxY from Bacillus subtilis and its bacterial homologs. The Bacillus subtilis genome contains six polysaccharide deacetylase gene homologs: pdaA, pdaB (previously known as ybaN), yheN, yjeA, yxkH and ylxY. This family is represented by Bacillus subtilis putative polysaccharide deacetylase BsYlxY, encoded by the ylxY gene, which is a member of the carbohydrate esterase 4 (CE4) superfamily. Although its biological function still remains unknown, BsYlxY shows high sequence homology to the catalytic domain of Bacillus subtilis pdaB gene encoding a putative polysaccharide deacetylase (BsPdaB), which is essential for the maintenance of spores after the late stage of sporulation and is highly conserved in spore-forming bacteria. However, disruption of the ylxY gene in B. subtilis did not cause any sporulation defect. Moreover, the Asp residue in the classical His-His-Asp zinc-binding motif of CE4 esterases is mutated to a Val residue in this family. Other catalytically relevant residues of CE4 esterases are also not conserved, which suggest that members of this family may be inactive.

CAZyme Hits     

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End
QKD61170.1|CE4	8.55e-21	225	425	37	234
UKZ48463.1|CBM18|CE4	4.43e-20	215	425	107	327
UKZ75005.1|CBM18|CE4	4.43e-20	215	425	107	327
QBZ64293.1|CBM18|CE4	1.75e-18	217	427	49	259
QNL44750.1|CE4	2.24e-18	213	422	21	215

PDB Hits     

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
7AX7_A	9.81e-12	231	426	6	190	Crystal structure of the Xyl-CE4 domain of a multidomain xylanase from the hindgut metagenome of Trinervitermes trinervoides [uncultured bacterium]

Swiss-Prot Hits     

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
sp|A0A1L3THR9|CDA_PESTX	2.11e-16	217	427	27	233	Chitin deacetylase OS=Pestalotiopsis sp. OX=36460 GN=CDA PE=1 SV=1
sp|Q8Y9V5|PGDA_LISMO	5.89e-14	206	420	250	444	Peptidoglycan-N-acetylglucosamine deacetylase PgdA OS=Listeria monocytogenes serovar 1/2a (strain ATCC BAA-679 / EGD-e) OX=169963 GN=pgdA PE=1 SV=1
sp|A0A0H3GDH9|PGDA_LISM4	5.89e-14	206	420	250	444	Peptidoglycan-N-acetylglucosamine deacetylase PgdA OS=Listeria monocytogenes serotype 1/2a (strain 10403S) OX=393133 GN=pgdA PE=2 SV=1
sp|A0A3Q0NBH7|PGDA_LISMG	5.89e-14	206	420	250	444	Peptidoglycan-N-acetylglucosamine deacetylase PgdA OS=Listeria monocytogenes serotype 1/2a (strain EGD / Mackaness) OX=1334565 GN=pgdA PE=1 SV=1
sp|D4B5F9|PGDA_ARTBC	7.10e-14	217	427	137	345	Probable peptidoglycan-N-acetylglucosamine deacetylase ARB_03699 OS=Arthroderma benhamiae (strain ATCC MYA-4681 / CBS 112371) OX=663331 GN=ARB_03699 PE=1 SV=2

SignalP and Lipop Annotations

This protein is predicted as SP

Other	SP_Sec_SPI	CS Position
0.000251	0.999723	CS pos: 21-22. Pr: 0.8824

TMHMM  Annotations     

There is no transmembrane helices in QRD94341.1.