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Conserved domains on  [gi|42571987|ref|NP_974084|]
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PLAC8 family protein [Arabidopsis thaliana]

Protein Classification

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
Atrophin-1 super family cl38111
Atrophin-1 family; Atrophin-1 is the protein product of the dentatorubral-pallidoluysian ...
190-232 3.86e-04

Atrophin-1 family; Atrophin-1 is the protein product of the dentatorubral-pallidoluysian atrophy (DRPLA) gene. DRPLA OMIM:125370 is a progressive neurodegenerative disorder. It is caused by the expansion of a CAG repeat in the DRPLA gene on chromosome 12p. This results in an extended polyglutamine region in atrophin-1, that is thought to confer toxicity to the protein, possibly through altering its interactions with other proteins. The expansion of a CAG repeat is also the underlying defect in six other neurodegenerative disorders, including Huntington's disease. One interaction of expanded polyglutamine repeats that is thought to be pathogenic is that with the short glutamine repeat in the transcriptional coactivator CREB binding protein, CBP. This interaction draws CBP away from its usual nuclear location to the expanded polyglutamine repeat protein aggregates that are characteriztic of the polyglutamine neurodegenerative disorders. This interferes with CBP-mediated transcription and causes cytotoxicity.


The actual alignment was detected with superfamily member pfam03154:

Pssm-ID: 460830 [Multi-domain]  Cd Length: 991  Bit Score: 41.29  E-value: 3.86e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 42571987   190 PPAQQMSRFDQPVPPPVGYP-----QSYPPPAQGYPPASY-----PPPGYPQH 232
Cdd:pfam03154 413 PPLQLMPQSQQLPPPPAQPPvltqsQSLPPPAASHPPTSGlhqvpSQSPFPQH 465
 
Name Accession Description Interval E-value
Atrophin-1 pfam03154
Atrophin-1 family; Atrophin-1 is the protein product of the dentatorubral-pallidoluysian ...
190-232 3.86e-04

Atrophin-1 family; Atrophin-1 is the protein product of the dentatorubral-pallidoluysian atrophy (DRPLA) gene. DRPLA OMIM:125370 is a progressive neurodegenerative disorder. It is caused by the expansion of a CAG repeat in the DRPLA gene on chromosome 12p. This results in an extended polyglutamine region in atrophin-1, that is thought to confer toxicity to the protein, possibly through altering its interactions with other proteins. The expansion of a CAG repeat is also the underlying defect in six other neurodegenerative disorders, including Huntington's disease. One interaction of expanded polyglutamine repeats that is thought to be pathogenic is that with the short glutamine repeat in the transcriptional coactivator CREB binding protein, CBP. This interaction draws CBP away from its usual nuclear location to the expanded polyglutamine repeat protein aggregates that are characteriztic of the polyglutamine neurodegenerative disorders. This interferes with CBP-mediated transcription and causes cytotoxicity.


Pssm-ID: 460830 [Multi-domain]  Cd Length: 991  Bit Score: 41.29  E-value: 3.86e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 42571987   190 PPAQQMSRFDQPVPPPVGYP-----QSYPPPAQGYPPASY-----PPPGYPQH 232
Cdd:pfam03154 413 PPLQLMPQSQQLPPPPAQPPvltqsQSLPPPAASHPPTSGlhqvpSQSPFPQH 465
Amelogenin smart00818
Amelogenins, cell adhesion proteins, play a role in the biomineralisation of teeth; They seem ...
183-230 9.73e-03

Amelogenins, cell adhesion proteins, play a role in the biomineralisation of teeth; They seem to regulate formation of crystallites during the secretory stage of tooth enamel development and are thought to play a major role in the structural organisation and mineralisation of developing enamel. The extracellular matrix of the developing enamel comprises two major classes of protein: the hydrophobic amelogenins and the acidic enamelins. Circular dichroism studies of porcine amelogenin have shown that the protein consists of 3 discrete folding units: the N-terminal region appears to contain beta-strand structures, while the C-terminal region displays characteristics of a random coil conformation. Subsequent studies on the bovine protein have indicated the amelogenin structure to contain a repetitive beta-turn segment and a "beta-spiral" between Gln112 and Leu138, which sequester a (Pro, Leu, Gln) rich region. The beta-spiral offers a probable site for interactions with Ca2+ ions. Muatations in the human amelogenin gene (AMGX) cause X-linked hypoplastic amelogenesis imperfecta, a disease characterised by defective enamel. A 9bp deletion in exon 2 of AMGX results in the loss of codons for Ile5, Leu6, Phe7 and Ala8, and replacement by a new threonine codon, disrupting the 16-residue (Met1-Ala16) amelogenin signal peptide.


Pssm-ID: 197891 [Multi-domain]  Cd Length: 165  Bit Score: 35.54  E-value: 9.73e-03
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 42571987    183 GSQPMGVPPAQQMSRFDQPVPPPVGYPQSYPPPAQGYPPASYPPPGYP 230
Cdd:smart00818  87 HHQPNLPQPAQQPFQPQPLQPPQPQQPMQPQPPVHPIPPLPPQPPLPP 134
 
Name Accession Description Interval E-value
Atrophin-1 pfam03154
Atrophin-1 family; Atrophin-1 is the protein product of the dentatorubral-pallidoluysian ...
190-232 3.86e-04

Atrophin-1 family; Atrophin-1 is the protein product of the dentatorubral-pallidoluysian atrophy (DRPLA) gene. DRPLA OMIM:125370 is a progressive neurodegenerative disorder. It is caused by the expansion of a CAG repeat in the DRPLA gene on chromosome 12p. This results in an extended polyglutamine region in atrophin-1, that is thought to confer toxicity to the protein, possibly through altering its interactions with other proteins. The expansion of a CAG repeat is also the underlying defect in six other neurodegenerative disorders, including Huntington's disease. One interaction of expanded polyglutamine repeats that is thought to be pathogenic is that with the short glutamine repeat in the transcriptional coactivator CREB binding protein, CBP. This interaction draws CBP away from its usual nuclear location to the expanded polyglutamine repeat protein aggregates that are characteriztic of the polyglutamine neurodegenerative disorders. This interferes with CBP-mediated transcription and causes cytotoxicity.


Pssm-ID: 460830 [Multi-domain]  Cd Length: 991  Bit Score: 41.29  E-value: 3.86e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 42571987   190 PPAQQMSRFDQPVPPPVGYP-----QSYPPPAQGYPPASY-----PPPGYPQH 232
Cdd:pfam03154 413 PPLQLMPQSQQLPPPPAQPPvltqsQSLPPPAASHPPTSGlhqvpSQSPFPQH 465
Pro-rich pfam15240
Proline-rich protein; This family includes several eukaryotic proline-rich proteins.
174-231 1.02e-03

Proline-rich protein; This family includes several eukaryotic proline-rich proteins.


Pssm-ID: 464580 [Multi-domain]  Cd Length: 167  Bit Score: 38.48  E-value: 1.02e-03
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 42571987   174 EMDKRDGVFGSQPMGVPPAQQMSR----FDQPVPPPVGYPQSYPPPAQGYPPASYPPPGYPQ 231
Cdd:pfam15240  34 EEEGQSQQGGQGPQGPPPGGFPPQppasDDPPGPPPPGGPQQPPPQGGKQKPQGPPPQGGPR 95
Amelogenin smart00818
Amelogenins, cell adhesion proteins, play a role in the biomineralisation of teeth; They seem ...
183-230 9.73e-03

Amelogenins, cell adhesion proteins, play a role in the biomineralisation of teeth; They seem to regulate formation of crystallites during the secretory stage of tooth enamel development and are thought to play a major role in the structural organisation and mineralisation of developing enamel. The extracellular matrix of the developing enamel comprises two major classes of protein: the hydrophobic amelogenins and the acidic enamelins. Circular dichroism studies of porcine amelogenin have shown that the protein consists of 3 discrete folding units: the N-terminal region appears to contain beta-strand structures, while the C-terminal region displays characteristics of a random coil conformation. Subsequent studies on the bovine protein have indicated the amelogenin structure to contain a repetitive beta-turn segment and a "beta-spiral" between Gln112 and Leu138, which sequester a (Pro, Leu, Gln) rich region. The beta-spiral offers a probable site for interactions with Ca2+ ions. Muatations in the human amelogenin gene (AMGX) cause X-linked hypoplastic amelogenesis imperfecta, a disease characterised by defective enamel. A 9bp deletion in exon 2 of AMGX results in the loss of codons for Ile5, Leu6, Phe7 and Ala8, and replacement by a new threonine codon, disrupting the 16-residue (Met1-Ala16) amelogenin signal peptide.


Pssm-ID: 197891 [Multi-domain]  Cd Length: 165  Bit Score: 35.54  E-value: 9.73e-03
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 42571987    183 GSQPMGVPPAQQMSRFDQPVPPPVGYPQSYPPPAQGYPPASYPPPGYP 230
Cdd:smart00818  87 HHQPNLPQPAQQPFQPQPLQPPQPQQPMQPQPPVHPIPPLPPQPPLPP 134
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options: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.
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