Catalytic domain of glycoside hydrolase (GH) families 38 and 57, lactam utilization protein ...
8-201
3.37e-117
Catalytic domain of glycoside hydrolase (GH) families 38 and 57, lactam utilization protein LamB/YcsF family proteins, YdjC-family proteins, and similar proteins; The superfamily possesses strong sequence similarities across a wide range of all three kingdoms of life. It mainly includes four families, glycoside hydrolases family 38 (GH38), heat stable retaining glycoside hydrolases family 57 (GH57), lactam utilization protein LamB/YcsF family, and YdjC-family. The GH38 family corresponds to class II alpha-mannosidases (alphaMII, EC 3.2.1.24), which contain intermediate Golgi alpha-mannosidases II, acidic lysosomal alpha-mannosidases, animal sperm and epididymal alpha -mannosidases, neutral ER/cytosolic alpha-mannosidases, and some putative prokaryotic alpha-mannosidases. AlphaMII possess a-1,3, a-1,6, and a-1,2 hydrolytic activity, and catalyzes the degradation of N-linked oligosaccharides by employing a two-step mechanism involving the formation of a covalent glycosyl enzyme complex. GH57 is a purely prokaryotic family with the majority of thermostable enzymes from extremophiles (many of them are archaeal hyperthermophiles), which exhibit the enzyme specificities of alpha-amylase (EC 3.2.1.1), 4-alpha-glucanotransferase (EC 2.4.1.25), amylopullulanase (EC 3.2.1.1/41), and alpha-galactosidase (EC 3.2.1.22). This family also includes many hypothetical proteins with uncharacterized activity and specificity. GH57 cleaves alpha-glycosidic bond by employing a retaining mechanism, which involves a glycosyl-enzyme intermediate, allowing transglycosylation. Although the exact molecular function of LamB/YcsF family and YdjC-family remains unclear, they show high sequence and structure homology to the members of GH38 and GH57. Their catalytic domains adopt a similar parallel 7-stranded beta/alpha barrel, which is remotely related to catalytic NodB homology domain of the carbohydrate esterase 4 superfamily.
The actual alignment was detected with superfamily member cd10806:
Pssm-ID: 483946 Cd Length: 280 Bit Score: 337.00 E-value: 3.37e-117
uncharacterized YdjC-like family proteins from eukaryotes; This eukaryotic subfamily contains ...
8-201
3.37e-117
uncharacterized YdjC-like family proteins from eukaryotes; This eukaryotic subfamily contains hypothetical and uncharacterized proteins, and belongs to the YdjC-like family of uncharacterized proteins. The YdjC-family is represented by an uncharacterised protein YdjC (also known as ChbG) encoded by the chb (N,N'-diacetylchitobiose, also called [GlcNAc]2) or cel operon in Escherichia coli, which encodes enzymes involved in growth on an N,N'-diacetylchitobiose carbon source. The molecular function of this subfamily is unclear.
Pssm-ID: 212117 Cd Length: 280 Bit Score: 337.00 E-value: 3.37e-117
uncharacterized YdjC-like family proteins from eukaryotes; This eukaryotic subfamily contains ...
8-201
3.37e-117
uncharacterized YdjC-like family proteins from eukaryotes; This eukaryotic subfamily contains hypothetical and uncharacterized proteins, and belongs to the YdjC-like family of uncharacterized proteins. The YdjC-family is represented by an uncharacterised protein YdjC (also known as ChbG) encoded by the chb (N,N'-diacetylchitobiose, also called [GlcNAc]2) or cel operon in Escherichia coli, which encodes enzymes involved in growth on an N,N'-diacetylchitobiose carbon source. The molecular function of this subfamily is unclear.
Pssm-ID: 212117 Cd Length: 280 Bit Score: 337.00 E-value: 3.37e-117
YdjC-family proteins; YdjC-family proteins are widely distributed, from human to bacteria. It ...
8-174
1.46e-49
YdjC-family proteins; YdjC-family proteins are widely distributed, from human to bacteria. It is represented by an uncharacterised protein YdjC (also known as ChbG), encoded by the chb (N,N'-diacetylchitobiose, also called [GlcNAc]2) or cel operon in Escherichia coli, which encodes enzymes involved in growth on an N,N'-diacetylchitobiose carbon source. This subfamily also includes hopanoid biosynthesis associated proteins HpnK and many uncharacterized YdjC homologs. Although the exact molecular function of the YdjC-family proteins remains unclear, it has been suggested that they play a role in the cleavage of cellobiosephosphate.
Pssm-ID: 212100 [Multi-domain] Cd Length: 243 Bit Score: 163.73 E-value: 1.46e-49
Escherichia coli YdjC-like family of proteins; Uncharacterized subfamily of YdjC-like family ...
7-164
5.62e-40
Escherichia coli YdjC-like family of proteins; Uncharacterized subfamily of YdjC-like family of proteins. Included in this subfamily is the uncharacterized Escherichia coli protein YdjC (also known as ChbG), encoded by the chb (N,N'-diacetylchitobiose, also called [GlcNAc]2) or cel operon, which encodes enzymes involved in growth on an N,N'-diacetylchitobiose carbon source. The molecular function of this subfamily is unclear.
Pssm-ID: 212119 Cd Length: 259 Bit Score: 139.32 E-value: 5.62e-40
Enterococcus faecalis EF3048 and similar proteins; This subfamily is represented by a putative ...
8-166
6.24e-37
Enterococcus faecalis EF3048 and similar proteins; This subfamily is represented by a putative cellobiose-phosphate cleavage protein EF3048 from Enterococcus faecalis v583. It is similar to Escherichia coli YdjC, a hypothetical protein encoded by the celG gene. EF3048 might function as a homodimer. Each of the monomers consists of a (beta/alpha)-barrel fold that forms an active homodimer. The molecular function of the EF3048 is unclear.
Pssm-ID: 212114 Cd Length: 228 Bit Score: 130.37 E-value: 6.24e-37
uncharacterized YdjC-like family proteins from bacteria; This subfamily contains many ...
8-175
2.82e-29
uncharacterized YdjC-like family proteins from bacteria; This subfamily contains many hypothetical proteins, and belongs to the YdjC-like family of uncharacterized proteins from bacteria. The YdjC-family is represented by an uncharacterised protein YdjC (also known as ChbG) encoded by the chb (N,N'-diacetylchitobiose, also called [GlcNAc]2) or cel operon in Escherichia coli, which encodes enzymes involved in growth on an N,N'-diacetylchitobiose carbon source. The molecular function of this subfamily is unclear.
Pssm-ID: 212118 Cd Length: 251 Bit Score: 111.16 E-value: 2.82e-29
hopanoid biosynthesis associated protein HpnK and similar proteins; The subfamily includes ...
7-165
4.80e-28
hopanoid biosynthesis associated protein HpnK and similar proteins; The subfamily includes some uncharacterized proteins annotated as hopanoid biosynthesis associated proteins, HpnK. They show high sequence similarity to proteins from the YdjC-family, the latter is represented by an uncharacterised protein YdjC (also known as ChbG) encoded by the chb (N,N'-diacetylchitobiose, also called [GlcNAc]2) or cel operon in Escherichia coli, which encodes enzymes involved in growth on an N,N'-diacetylchitobiose carbon source.
Pssm-ID: 212115 Cd Length: 261 Bit Score: 108.11 E-value: 4.80e-28
uncharacterized YdjC-like family proteins from bacteria; The subfamily contains many ...
7-166
4.68e-25
uncharacterized YdjC-like family proteins from bacteria; The subfamily contains many hypothetical proteins, and belongs to the YdjC-like family of uncharacterized proteins from bacteria. The YdjC-family is represented by an uncharacterised protein YdjC (also known as ChbG) encoded by the chb (N,N'-diacetylchitobiose, also called [GlcNAc]2) or cel operon in Escherichia coli, which encodes enzymes involved in growth on an N,N'-diacetylchitobiose carbon source. The molecular function of this subfamily is unclear.
Pssm-ID: 212116 Cd Length: 251 Bit Score: 99.97 E-value: 4.68e-25
Thermus thermophiles TTHB029 and similar proteins; This subfamily is represented by an ...
8-134
3.94e-23
Thermus thermophiles TTHB029 and similar proteins; This subfamily is represented by an YdjC-family protein TTHB029 from Thermus thermophilus HB8; it is similar to Escherichia coli YdjC, a hypothetical protein encoded by the celG gene. TTHB029 functions as a homodimer. Each of monomer consists of (beta/alpha)-barrel fold. The molecular function of TTHB029 is unclear.
Pssm-ID: 212113 Cd Length: 251 Bit Score: 94.67 E-value: 3.94e-23
Database: CDSEARCH/cdd Low complexity filter: no Composition Based Adjustment: yes E-value threshold: 0.01
References:
Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
of the residues that compose this conserved feature have been mapped to the query sequence.
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