CAZyme Information: KAF7618786.1

Basic Information

• Species: Aspergillus flavus
• Lineage: Ascomycota; Eurotiomycetes; ; Aspergillaceae; Aspergillus; Aspergillus flavus
• CAZyme ID: KAF7618786.1
• CAZy Family: CE1
• CAZyme Description: NodB homology domain-containing protein [Source:UniProtKB/TrEMBL;Acc:B8N0Q5]

CAZyme Property

Protein Length	CGC	Molecular Weight	Isoelectric Point
241	AAIH03000226|CGC1	26958.59	4.7353

Genome Property

Genome Version/Assembly ID	Genes	Strain NCBI Taxon ID	Non Protein Coding Genes	Protein Coding Genes
FungiDB-61_AflavusNRRL3357	14313	332952	0	14313

• Gene Location: location=AAIH03000226:784976-785813(-)

Full Sequence      

MYTFFTLSLLMTLTPHVLSAPLNNAITTVPTGQIIRSCTTPNTVALTFDDGPSGYTPQLL
DLLNEYGAKATFFMIGEGSQEYPDTIRRMRSEGHQVGSHTLEHASLPSLSYEQIVQQMTK
LEGILQSAMGDIPTYMRPPYFEVNEQVLAAMNELGYKVIQSSIDTKDYENNDVSRIDISY
EKFVNELNAGGSIVLAHDIHEQTVVSLARRMMEEIKARGFKMTTVGECLGEAEAEWYRKG
R

Enzyme Prediction     

EC	3.5.1.41:3

CAZyme Signature Domains

Family	Start	End	Evalue	family coverage
CE4	38	161	4.6e-35	0.9384615384615385

CDD Domains     

Cdd ID	Domain	E-Value	qStart	qEnd	sStart	sEnd	Domain Description
200575	CE4_ClCDA_like	4.42e-103	35	225	1	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.
213022	CE4_NodB_like_6s_7s	1.61e-65	42	216	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.
200578	CE4_CtAXE_like	3.61e-52	44	227	3	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.
200582	CE4_NodB_like_3	1.11e-48	44	225	3	187	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	1.23e-48	44	225	3	177	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
QMW28586.1|CE4	2.93e-171	1	241	1	241
QRD83102.1|CE4	2.93e-171	1	241	1	241
QMW40657.1|CE4	2.93e-171	1	241	1	241
UDD56631.1|CE4	2.93e-171	1	241	1	241
BAE58312.1|CE4	1.07e-154	1	223	1	223

PDB Hits     

Hit ID	E-Value	Query Start	Query End	Hit Start	Hit End	Description
7BLY_A	2.27e-104	1	241	1	239	Chain A, Aspergillus niger contig An12c0130, genomic contig [Aspergillus niger CBS 513.88]
2Y8U_A	9.76e-92	29	237	20	229	Chain A, CHITIN DEACETYLASE [Aspergillus nidulans],2Y8U_B Chain B, CHITIN DEACETYLASE [Aspergillus nidulans]
2IW0_A	9.00e-63	29	238	29	247	Structure of the chitin deacetylase from the fungal pathogen Colletotrichum lindemuthianum [Colletotrichum lindemuthianum]
5O6Y_A	1.03e-33	44	225	23	204	Crystal structure of the Bc1960 peptidoglycan N-acetylglucosamine deacetylase in complex with 4-naphthalen-1-yl-~{N}-oxidanyl-benzamide [Bacillus cereus ATCC 14579]
5LFZ_A	1.42e-32	38	227	21	202	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|Q5AQQ0|CDA_EMENI	1.57e-91	17	237	8	236	Chitin deacetylase OS=Emericella nidulans (strain FGSC A4 / ATCC 38163 / CBS 112.46 / NRRL 194 / M139) OX=227321 GN=cda PE=1 SV=1
sp|A0A1L3THR9|CDA_PESTX	1.24e-69	19	240	16	239	Chitin deacetylase OS=Pestalotiopsis sp. OX=36460 GN=CDA PE=1 SV=1
sp|D4B5F9|PGDA_ARTBC	2.13e-61	27	238	134	349	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
sp|Q6DWK3|CDA_COLLN	2.19e-61	29	238	29	247	Chitin deacetylase OS=Colletotrichum lindemuthianum OX=290576 GN=CDA PE=1 SV=1
sp|D4AM78|CDA_ARTBC	1.27e-60	28	238	154	368	Chitin deacetylase OS=Arthroderma benhamiae (strain ATCC MYA-4681 / CBS 112371) OX=663331 GN=CDA PE=3 SV=1

SignalP and Lipop Annotations

This protein is predicted as SP

Other	SP_Sec_SPI	CS Position
0.000242	0.999719	CS pos: 19-20. Pr: 0.9768

TMHMM  Annotations     

There is no transmembrane helices in KAF7618786.1.