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Conserved domains on  [gi|20128943|ref|NP_570012|]
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seipin [Drosophila melanogaster]

Protein Classification

seipin( domain architecture ID 19234100)

seipin is a putative adipose-regulatory protein that is involved in lipid droplets formation

Gene Ontology:  GO:0006629|GO:0140042
PubMed:  36819093|34215489|33147895|30402103

Graphical summary

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List of domain hits

 Name Accession Description Interval E-value
Seipin cd23993
Seipin and similar proteins; Seipin is a homo-oligomeric integral membrane protein in the ...
 82-242 3.73e-92

Seipin and similar proteins; Seipin is a homo-oligomeric integral membrane protein in the endoplasmic reticulum (ER) that concentrates at junctions with cytoplasmic lipid droplets (LDs). It acts as a cell-autonomous regulator of lipolysis essential for adipocyte differentiation. Seipin is predicted to contain two transmembrane domains at N-terminus and C-terminus, respectively. Human seipin, also called Bernardinelli-Seip congenital lipodystrophy type 2 protein (BSCL2), may contain a third transmembrane domain in the middle region. Mutations in the seipin gene underlie human congenital generalized lipodystrophy. Seipin may also be implicated in Silver spastic paraplegia syndrome and distal hereditary motor neuropathy type V. Seipin homologs from fungi, plants, and insects are also included in this family. There are three SEIPIN homologs in Arabidopsis thaliana, designated SEIPIN1, SEIPIN2, and SEIPIN3. Saccharomyces cerevisiae Seipin (Sei1) is also called few lipid droplets protein 1 (Fld1p). Similar to their animal homologs, plant and yeast seipins also play roles in lipid droplet (LD) biogenesis. Human seipin exists as an undecamer, and this oligomerization state is critical for its physiological function. In contrast to Human seipin, S. cerevisiae Sei1-mediated LD formation depends on Ldb16, a yeast specific binding partner. Sei1 forms a homodecameric ring that scaffolds and positions Ldb16.


:

Pssm-ID: 467827  Cd Length: 163  Bit Score: 273.02  E-value: 3.73e-92
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 20128943  82 PAISHTRPVHMQFKTCLETSTPCTFPHAHVSLTKKQQLL--MVGQAYKVIVNIDMPESPQNLELGMFMVCAEMRDYDSML 159
Cdd:cd23993   1 PSNSHPLPVHNGVQTCLETSTPCTFPGAKVSLTKKSIPVgdMMGQKYDVNLQLYCPESPQNDHLGMFNVLIDVYRGPDEK 80

                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 20128943 160 RGHSCRSAMMRYRSPLIRMISTWVLSPLYVLGWKEEFQQVPVEIFSRYLEERQHPITDVYVEIQSQKIQFYTVTLHIVAD 239
Cdd:cd23993  81 IFHSSRSIMCLYRSDLMSMQETEVQSGLSRLGVYEEEQLNTVEIEDKYSEESSYPTTSVFLEIESAQIQLYIHPLGIKAR 160


                ...
gi 20128943 240 FTG 242
Cdd:cd23993 161 FTG 163
 
Name Accession Description Interval E-value
Seipin cd23993
Seipin and similar proteins; Seipin is a homo-oligomeric integral membrane protein in the ...
 82-242 3.73e-92

Seipin and similar proteins; Seipin is a homo-oligomeric integral membrane protein in the endoplasmic reticulum (ER) that concentrates at junctions with cytoplasmic lipid droplets (LDs). It acts as a cell-autonomous regulator of lipolysis essential for adipocyte differentiation. Seipin is predicted to contain two transmembrane domains at N-terminus and C-terminus, respectively. Human seipin, also called Bernardinelli-Seip congenital lipodystrophy type 2 protein (BSCL2), may contain a third transmembrane domain in the middle region. Mutations in the seipin gene underlie human congenital generalized lipodystrophy. Seipin may also be implicated in Silver spastic paraplegia syndrome and distal hereditary motor neuropathy type V. Seipin homologs from fungi, plants, and insects are also included in this family. There are three SEIPIN homologs in Arabidopsis thaliana, designated SEIPIN1, SEIPIN2, and SEIPIN3. Saccharomyces cerevisiae Seipin (Sei1) is also called few lipid droplets protein 1 (Fld1p). Similar to their animal homologs, plant and yeast seipins also play roles in lipid droplet (LD) biogenesis. Human seipin exists as an undecamer, and this oligomerization state is critical for its physiological function. In contrast to Human seipin, S. cerevisiae Sei1-mediated LD formation depends on Ldb16, a yeast specific binding partner. Sei1 forms a homodecameric ring that scaffolds and positions Ldb16.


Pssm-ID: 467827  Cd Length: 163  Bit Score: 273.02  E-value: 3.73e-92
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 20128943  82 PAISHTRPVHMQFKTCLETSTPCTFPHAHVSLTKKQQLL--MVGQAYKVIVNIDMPESPQNLELGMFMVCAEMRDYDSML 159
Cdd:cd23993   1 PSNSHPLPVHNGVQTCLETSTPCTFPGAKVSLTKKSIPVgdMMGQKYDVNLQLYCPESPQNDHLGMFNVLIDVYRGPDEK 80

                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 20128943 160 RGHSCRSAMMRYRSPLIRMISTWVLSPLYVLGWKEEFQQVPVEIFSRYLEERQHPITDVYVEIQSQKIQFYTVTLHIVAD 239
Cdd:cd23993  81 IFHSSRSIMCLYRSDLMSMQETEVQSGLSRLGVYEEEQLNTVEIEDKYSEESSYPTTSVFLEIESAQIQLYIHPLGIKAR 160


                ...
gi 20128943 240 FTG 242
Cdd:cd23993 161 FTG 163
Seipin pfam06775
Putative adipose-regulatory protein (Seipin); Seipin is a protein of approximately 400 ...
 63-262 6.23e-79

Putative adipose-regulatory protein (Seipin); Seipin is a protein of approximately 400 residues, in humans, which is the product of a gene homologous to the murine guanine nucleotide-binding protein (G protein) gamma-3 linked gene. This gene is implicated in the regulation of body fat distribution and insulin resistance and particularly in the auto-immune disease Berardinelli-Seip congenital lipodystrophy type 2. Seipin has no similarity with other known proteins or consensus motifs that might predict its function, but it is predicted to contain two transmembrane domains at residues 28-49 and 237-258, in human, and a third transmembrane domain might be present at residues 155-173. Seipin may also be implicated in Silver spastic paraplegia syndrome and distal hereditary motor neuropathy type V.


Pssm-ID: 462007  Cd Length: 195  Bit Score: 240.51  E-value: 6.23e-79
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 20128943    63 VLIIWLAVFMYAAFYYVYMPAISHTRPVHMQFKTCLEtstpctfPHAHVSLTKKQQLLMVGQAYKVIVNIDMPESPQNLE 142
Cdd:pfam06775   1 LLLLVLSVVAYGLFYYAYVPEPVLSRPLHFQYGTGSN-------PYATVSLTSRASLLPPGQPYDVSVELTLPESPYNLE 73

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 20128943   143 LGMFMVCAEMRDYDSMLRGHSCRSAMMRYRSPLIRMISTWVLSPLYVLGWKEEFQQVPVEIFSRYLEERQHPITDVYVEI 222
Cdd:pfam06775  74 LGNFMVRLELLSSNGKVLASSRRPAMLPYRSPLVRLLRTLLLLPPYLLGLREESQTLRVPMFESVVEGRENPPTSARVEI 153

                         170       180       190       200
                  ....*....|....*....|....*....|....*....|.
gi 20128943   223 QSQK-IQFYTVTLHIVADFTGLRYIMFNWPVLSAIVAISTN 262
Cdd:pfam06775 154 QSAGlLQIYSAELIFEARLPGLRYLMYNWPITSFVVGTALF 194
 
Name Accession Description Interval E-value
Seipin cd23993
Seipin and similar proteins; Seipin is a homo-oligomeric integral membrane protein in the ...
 82-242 3.73e-92

Seipin and similar proteins; Seipin is a homo-oligomeric integral membrane protein in the endoplasmic reticulum (ER) that concentrates at junctions with cytoplasmic lipid droplets (LDs). It acts as a cell-autonomous regulator of lipolysis essential for adipocyte differentiation. Seipin is predicted to contain two transmembrane domains at N-terminus and C-terminus, respectively. Human seipin, also called Bernardinelli-Seip congenital lipodystrophy type 2 protein (BSCL2), may contain a third transmembrane domain in the middle region. Mutations in the seipin gene underlie human congenital generalized lipodystrophy. Seipin may also be implicated in Silver spastic paraplegia syndrome and distal hereditary motor neuropathy type V. Seipin homologs from fungi, plants, and insects are also included in this family. There are three SEIPIN homologs in Arabidopsis thaliana, designated SEIPIN1, SEIPIN2, and SEIPIN3. Saccharomyces cerevisiae Seipin (Sei1) is also called few lipid droplets protein 1 (Fld1p). Similar to their animal homologs, plant and yeast seipins also play roles in lipid droplet (LD) biogenesis. Human seipin exists as an undecamer, and this oligomerization state is critical for its physiological function. In contrast to Human seipin, S. cerevisiae Sei1-mediated LD formation depends on Ldb16, a yeast specific binding partner. Sei1 forms a homodecameric ring that scaffolds and positions Ldb16.


Pssm-ID: 467827  Cd Length: 163  Bit Score: 273.02  E-value: 3.73e-92
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 20128943  82 PAISHTRPVHMQFKTCLETSTPCTFPHAHVSLTKKQQLL--MVGQAYKVIVNIDMPESPQNLELGMFMVCAEMRDYDSML 159
Cdd:cd23993   1 PSNSHPLPVHNGVQTCLETSTPCTFPGAKVSLTKKSIPVgdMMGQKYDVNLQLYCPESPQNDHLGMFNVLIDVYRGPDEK 80

                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 20128943 160 RGHSCRSAMMRYRSPLIRMISTWVLSPLYVLGWKEEFQQVPVEIFSRYLEERQHPITDVYVEIQSQKIQFYTVTLHIVAD 239
Cdd:cd23993  81 IFHSSRSIMCLYRSDLMSMQETEVQSGLSRLGVYEEEQLNTVEIEDKYSEESSYPTTSVFLEIESAQIQLYIHPLGIKAR 160


                ...
gi 20128943 240 FTG 242
Cdd:cd23993 161 FTG 163
Seipin pfam06775
Putative adipose-regulatory protein (Seipin); Seipin is a protein of approximately 400 ...
 63-262 6.23e-79

Putative adipose-regulatory protein (Seipin); Seipin is a protein of approximately 400 residues, in humans, which is the product of a gene homologous to the murine guanine nucleotide-binding protein (G protein) gamma-3 linked gene. This gene is implicated in the regulation of body fat distribution and insulin resistance and particularly in the auto-immune disease Berardinelli-Seip congenital lipodystrophy type 2. Seipin has no similarity with other known proteins or consensus motifs that might predict its function, but it is predicted to contain two transmembrane domains at residues 28-49 and 237-258, in human, and a third transmembrane domain might be present at residues 155-173. Seipin may also be implicated in Silver spastic paraplegia syndrome and distal hereditary motor neuropathy type V.


Pssm-ID: 462007  Cd Length: 195  Bit Score: 240.51  E-value: 6.23e-79
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 20128943    63 VLIIWLAVFMYAAFYYVYMPAISHTRPVHMQFKTCLEtstpctfPHAHVSLTKKQQLLMVGQAYKVIVNIDMPESPQNLE 142
Cdd:pfam06775   1 LLLLVLSVVAYGLFYYAYVPEPVLSRPLHFQYGTGSN-------PYATVSLTSRASLLPPGQPYDVSVELTLPESPYNLE 73

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 20128943   143 LGMFMVCAEMRDYDSMLRGHSCRSAMMRYRSPLIRMISTWVLSPLYVLGWKEEFQQVPVEIFSRYLEERQHPITDVYVEI 222
Cdd:pfam06775  74 LGNFMVRLELLSSNGKVLASSRRPAMLPYRSPLVRLLRTLLLLPPYLLGLREESQTLRVPMFESVVEGRENPPTSARVEI 153

                         170       180       190       200
                  ....*....|....*....|....*....|....*....|.
gi 20128943   223 QSQK-IQFYTVTLHIVADFTGLRYIMFNWPVLSAIVAISTN 262
Cdd:pfam06775 154 QSAGlLQIYSAELIFEARLPGLRYLMYNWPITSFVVGTALF 194
Seipin_BSCL2_like cd23995
Homo sapiens Seipin and similar proteins; Seipin is a homo-oligomeric integral membrane ...
 82-242 1.26e-65

Homo sapiens Seipin and similar proteins; Seipin is a homo-oligomeric integral membrane protein in the endoplasmic reticulum (ER) that concentrates at junctions with cytoplasmic lipid droplets (LDs). It acts as a cell-autonomous regulator of lipolysis essential for adipocyte differentiation. Seipin is predicted to contain two transmembrane domains at N-terminus and C-terminus, respectively. Human seipin, also called Bernardinelli-Seip congenital lipodystrophy type 2 protein (BSCL2), may contain a third transmembrane domain in the middle region. Mutations in the seipin gene underlie Human congenital generalized lipodystrophy. Seipin may also be implicated in Silver spastic paraplegia syndrome and distal hereditary motor neuropathy type V. Human seipin exists as an undecamer, and this oligomerization state is critical for its physiological function. Seipin homologs from fungi, plants and insects are also included in this family. There are three SEIPIN homologs in Arabidopsis thaliana, designated SEIPIN1, SEIPIN2, and SEIPIN3.


Pssm-ID: 467829  Cd Length: 162  Bit Score: 205.16  E-value: 1.26e-65
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 20128943  82 PAISHTRPVHMQFKTCLETStPCTFPHAHVSLTKKQQ--LLMVGQAYKVIVNIDMPESPQNLELGMFMVCAEMRDYDSML 159
Cdd:cd23995   1 PPVSHERPVHFQYGTCCDAG-VCSFPSATVSLTPGGLsqLLSPGQPYDVSLELELPESPVNRDLGNFMVSLELLSADGTV 79

                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 20128943 160 RGHSCRSAMMRYRSPLIRMISTWVLSPLYVLGWKEEFQQVPVEIFSRYLEERQHPITDVYVEIQSQKIQFYTVTLHIVAD 239
Cdd:cd23995  80 LASSSRPAILRYRSPLVRLLRTLLFLPPLLLGLSEETQTLSVPLFEGFVEDPDNPTTSARVELQSRLLQIYSASLRIHAR 159


                ...
gi 20128943 240 FTG 242
Cdd:cd23995 160 LSG 162
 
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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