HflK protein; HflK and HflC are paralogs encoded by tandem genes in Proteobacteria, ...
97-356
1.36e-161
HflK protein; HflK and HflC are paralogs encoded by tandem genes in Proteobacteria, spirochetes, and some other bacterial lineages. The HflKC complex is anchored in the membrane and exposed to the periplasm. The complex is not active as a protease, but rather binds to and appears to modulate the ATP-dependent protease FtsH. The overall function of HflKC is not fully described.//Regulation of FtsH by HflKC appears to be negative (SS 8/27/03]
Pssm-ID: 130988 [Multi-domain] Cd Length: 261 Bit Score: 454.94 E-value: 1.36e-161
High frequency of lysogenization K (HflK) family; SPFH (stomatin, prohibitin, flotillin, and ...
95-341
6.46e-125
High frequency of lysogenization K (HflK) family; SPFH (stomatin, prohibitin, flotillin, and HflK/C) superfamily; This model characterizes proteins similar to prokaryotic HflK (High frequency of lysogenization K). Although many members of the SPFH (or band 7) superfamily are lipid raft associated, prokaryote plasma membranes lack cholesterol and are unlikely to have lipid raft domains. Individual proteins of this SPFH domain superfamily may cluster to form membrane microdomains which may in turn recruit multiprotein complexes. Escherichia coli HflK is an integral membrane protein which may localize to the plasma membrane. HflK associates with another SPFH superfamily member (HflC) to form an HflKC complex. HflKC interacts with FtsH in a large complex termed the FtsH holo-enzyme. FtsH is an AAA ATP-dependent protease which exerts progressive proteolysis against membrane-embedded and soluble substrate proteins. HflKC can modulate the activity of FtsH. HflKC plays a role in the decision between lysogenic and lytic cycle growth during lambda phage infection.
Pssm-ID: 259802 [Multi-domain] Cd Length: 266 Bit Score: 361.83 E-value: 6.46e-125
SPFH domain / Band 7 family; This family has been called SPFH, Band 7 or PHB domain. Recent ...
98-270
2.21e-30
SPFH domain / Band 7 family; This family has been called SPFH, Band 7 or PHB domain. Recent phylogenetic analysis has shown this domain to be a slipin or Stomatin-like integral membrane domain conserved from protozoa to mammals.
Pssm-ID: 426078 [Multi-domain] Cd Length: 177 Bit Score: 115.11 E-value: 2.21e-30
HflK protein; HflK and HflC are paralogs encoded by tandem genes in Proteobacteria, ...
97-356
1.36e-161
HflK protein; HflK and HflC are paralogs encoded by tandem genes in Proteobacteria, spirochetes, and some other bacterial lineages. The HflKC complex is anchored in the membrane and exposed to the periplasm. The complex is not active as a protease, but rather binds to and appears to modulate the ATP-dependent protease FtsH. The overall function of HflKC is not fully described.//Regulation of FtsH by HflKC appears to be negative (SS 8/27/03]
Pssm-ID: 130988 [Multi-domain] Cd Length: 261 Bit Score: 454.94 E-value: 1.36e-161
High frequency of lysogenization K (HflK) family; SPFH (stomatin, prohibitin, flotillin, and ...
95-341
6.46e-125
High frequency of lysogenization K (HflK) family; SPFH (stomatin, prohibitin, flotillin, and HflK/C) superfamily; This model characterizes proteins similar to prokaryotic HflK (High frequency of lysogenization K). Although many members of the SPFH (or band 7) superfamily are lipid raft associated, prokaryote plasma membranes lack cholesterol and are unlikely to have lipid raft domains. Individual proteins of this SPFH domain superfamily may cluster to form membrane microdomains which may in turn recruit multiprotein complexes. Escherichia coli HflK is an integral membrane protein which may localize to the plasma membrane. HflK associates with another SPFH superfamily member (HflC) to form an HflKC complex. HflKC interacts with FtsH in a large complex termed the FtsH holo-enzyme. FtsH is an AAA ATP-dependent protease which exerts progressive proteolysis against membrane-embedded and soluble substrate proteins. HflKC can modulate the activity of FtsH. HflKC plays a role in the decision between lysogenic and lytic cycle growth during lambda phage infection.
Pssm-ID: 259802 [Multi-domain] Cd Length: 266 Bit Score: 361.83 E-value: 6.46e-125
SPFH domain / Band 7 family; This family has been called SPFH, Band 7 or PHB domain. Recent ...
98-270
2.21e-30
SPFH domain / Band 7 family; This family has been called SPFH, Band 7 or PHB domain. Recent phylogenetic analysis has shown this domain to be a slipin or Stomatin-like integral membrane domain conserved from protozoa to mammals.
Pssm-ID: 426078 [Multi-domain] Cd Length: 177 Bit Score: 115.11 E-value: 2.21e-30
High frequency of lysogenization C (HflC) family; SPFH (stomatin, prohibitin, flotillin, and ...
97-320
1.19e-29
High frequency of lysogenization C (HflC) family; SPFH (stomatin, prohibitin, flotillin, and HflK/C) superfamily; This model characterizes proteins similar to prokaryotic HflC (High frequency of lysogenization C). Although many members of the SPFH (or band 7) superfamily are lipid raft associated, prokaryote plasma membranes lack cholesterol and are unlikely to have lipid raft domains. Individual proteins of this SPFH domain superfamily may cluster to form membrane microdomains which may in turn recruit multiprotein complexes. Escherichia coli HflC is an integral membrane protein which may localize to the plasma membrane. HflC associates with another SPFH superfamily member (HflK) to form an HflKC complex. HflKC interacts with FtsH in a large complex termed the FtsH holo-enzyme. FtsH is an AAA ATP-dependent protease which exerts progressive proteolysis against membrane-embedded and soluble substrate proteins. HflKC can modulate the activity of FtsH. HflKC plays a role in the decision between lysogenic and lytic cycle growth during lambda phage infection.
Pssm-ID: 259803 [Multi-domain] Cd Length: 249 Bit Score: 115.28 E-value: 1.19e-29
Prohibitin family; SPFH (stomatin, prohibitin, flotillin, and HflK/C) superfamily; This model ...
97-292
7.12e-22
Prohibitin family; SPFH (stomatin, prohibitin, flotillin, and HflK/C) superfamily; This model characterizes proteins similar to prohibitin (a lipid raft-associated integral membrane protein). Individual proteins of the SPFH (band 7) domain superfamily may cluster to form membrane microdomains which may in turn recruit multiprotein complexes. These microdomains, in addition to being stable scaffolds, may also be dynamic units with their own regulatory functions. Prohibitin is a mitochondrial inner-membrane protein which may act as a chaperone for the stabilization of mitochondrial proteins. Human prohibitin forms a hetero-oligomeric complex with Bap-37 (prohibitin 2, an SPFH domain carrying homolog). This complex may protect non-assembled membrane proteins against proteolysis by the m-AAA protease. Prohibitin and Bap-37 yeast homologs have been implicated in yeast longevity and in the maintenance of mitochondrial morphology.
Pssm-ID: 259799 [Multi-domain] Cd Length: 195 Bit Score: 92.58 E-value: 7.12e-22
Alloslipin, a subgroup of the stomatin-like proteins (slipins) family; belonging to the SPFH ...
97-356
1.77e-18
Alloslipin, a subgroup of the stomatin-like proteins (slipins) family; belonging to the SPFH (stomatin, prohibitin, flotillin, and HflK/C) superfamily; This model summarizes a subgroup of the stomatin-like protein family (SLPs or slipins) that is found in some eukaryotes and viruses. The conserved domain common to the SPFH superfamily has also been referred to as the Band 7 domain. Individual proteins of the SPFH superfamily may cluster to form membrane microdomains which may in turn recruit multiprotein complexes. This diverse subgroup of the SLPs remains largely uncharacterized.
Pssm-ID: 259815 [Multi-domain] Cd Length: 222 Bit Score: 83.82 E-value: 1.77e-18
Uncharacterized prokaryotic subgroup of the stomatin-like proteins (slipins) family; belonging ...
100-287
4.42e-17
Uncharacterized prokaryotic subgroup of the stomatin-like proteins (slipins) family; belonging to the SPFH (stomatin, prohibitin, flotillin, and HflK/C) superfamily; This model summarizes a subgroup of the stomatin-like protein family (SLPs or slipins) that is found in bacteria. The conserved domain common to the SPFH superfamily has also been referred to as the Band 7 domain. Individual proteins of the SPFH superfamily may cluster to form membrane microdomains which may in turn recruit multiprotein complexes. Bacterial SLPs remain uncharacterized.
Pssm-ID: 259816 [Multi-domain] Cd Length: 215 Bit Score: 79.50 E-value: 4.42e-17
HflC protein; HflK and HflC are paralogs encoded by tandem genes in Proteobacteria, ...
97-345
5.99e-16
HflC protein; HflK and HflC are paralogs encoded by tandem genes in Proteobacteria, spirochetes, and some other bacterial lineages. The HflKC complex is anchored in the membrane and exposed to the periplasm. The complex is not active as a protease, but rather binds to and appears to modulate the ATP-dependent protease FtsH. The overall function of HflKC is not fully described. [Protein fate, Degradation of proteins, peptides, and glycopeptides, Regulatory functions, Protein interactions]
Pssm-ID: 273883 [Multi-domain] Cd Length: 317 Bit Score: 78.29 E-value: 5.99e-16
Uncharacterized family; SPFH (stomatin, prohibitin, flotillin, and HflK/C) superfamily; This ...
99-292
1.23e-14
Uncharacterized family; SPFH (stomatin, prohibitin, flotillin, and HflK/C) superfamily; This model summarizes an uncharacterized family of proteins similar to stomatin, prohibitin, flotillin, HflK/C (SPFH) and podocin. The conserved domain common to the SPFH superfamily has also been referred to as the Band 7 domain. Many superfamily members are associated with lipid rafts. Individual proteins of the SPFH superfamily may cluster to form membrane microdomains which may in turn recruit multiprotein complexes. Microdomains formed from flotillin proteins may in addition be dynamic units with their own regulatory functions. Flotillins have been implicated in signal transduction, vesicle trafficking, cytoskeleton rearrangement and are known to interact with a variety of proteins. Stomatin interacts with and regulates members of the degenerin/epithelia Na+ channel family in mechanosensory cells of Caenorhabditis elegans and vertebrate neurons and participates in trafficking of Glut1 glucose transporters. Prohibitin may act as a chaperone for the stabilization of mitochondrial proteins. Prokaryotic HflK/C plays a role in the decision between lysogenic and lytic cycle growth during lambda phage infection. Flotillins have been implicated in the progression of prion disease, in the pathogenesis of neurodegenerative diseases such as Parkinson's and Alzheimer's disease and, in cancer invasion and metastasis. Mutations in the podocin gene give rise to autosomal recessive steroid resistant nephritic syndrome.
Pssm-ID: 259805 [Multi-domain] Cd Length: 269 Bit Score: 73.39 E-value: 1.23e-14
core domain of the SPFH (stomatin, prohibitin, flotillin, and HflK/C) superfamily; This model ...
149-245
8.00e-13
core domain of the SPFH (stomatin, prohibitin, flotillin, and HflK/C) superfamily; This model summarizes proteins similar to stomatin, prohibitin, flotillin, HflK/C (SPFH) and podocin. The conserved domain common to the SPFH superfamily has also been referred to as the Band 7 domain. Many superfamily members are associated with lipid rafts. Individual proteins of the SPFH superfamily may cluster to form membrane microdomains which may in turn recruit multiprotein complexes. Microdomains formed from flotillin proteins may in addition be dynamic units with their own regulatory functions. Flotillins have been implicated in signal transduction, vesicle trafficking, cytoskeleton rearrangement and are known to interact with a variety of proteins. Stomatin interacts with and regulates members of the degenerin/epithelia Na+ channel family in mechanosensory cells of Caenorhabditis elegans and vertebrate neurons, and participates in trafficking of Glut1 glucose transporters. Prohibitin may act as a chaperone for the stabilization of mitochondrial proteins. Prokaryotic HflK/C plays a role in the decision between lysogenic and lytic cycle growth during lambda phage infection. Flotillins have been implicated in the progression of prion disease, in the pathogenesis of neurodegenerative diseases such as Parkinson's and Alzheimer's disease, and in cancer invasion and metastasis. Mutations in the podocin gene give rise to autosomal recessive steroid resistant nephritic syndrome.
Pssm-ID: 259797 [Multi-domain] Cd Length: 110 Bit Score: 64.31 E-value: 8.00e-13
Stomatin-like proteins (slipins) family; SPFH (stomatin, prohibitin, flotillin, and HflK/C) superfamily; This model summarizes proteins similar to stomatin, podocin, and other members of the stomatin-like protein family (SLPs or slipins). The conserved domain common to the SPFH superfamily has also been referred to as the Band 7 domain. Individual proteins of the SPFH superfamily may cluster to form membrane microdomains which may in turn recruit multiprotein complexes. Stomatin interacts with and regulates members of the degenerin/epithelia Na+ channel family in mechanosensory cells of Caenorhabditis elegans and vertebrate neurons and participates in trafficking of Glut1 glucose transporters. Mutations in the podocin gene give rise to autosomal recessive steroid resistant nephritic syndrome. Bacterial and archaebacterial SLPs and many of the eukaryotic family members remain uncharacterized.
Pssm-ID: 259812 [Multi-domain] Cd Length: 108 Bit Score: 61.44 E-value: 1.02e-11
Paraslipin or slipin-2 (SLP-2, a subgroup of the stomatin-like proteins (slipins) family; ...
151-245
1.26e-09
Paraslipin or slipin-2 (SLP-2, a subgroup of the stomatin-like proteins (slipins) family; belonging to the SPFH (stomatin, prohibitin, flotillin, and HflK/C) superfamily; This model summarizes a subgroup of the stomatin-like protein family (SLPs or slipins) that is found in all three kingdoms of life. The conserved domain common to these families has also been referred to as the Band 7 domain. Individual proteins of the SPFH family may cluster to form membrane microdomains which may in turn recruit multiprotein complexes. This subgroup of the SLPs remains largely uncharacterized. It includes human SLP-2 which is upregulated and involved in the progression and development in several types of cancer, including esophageal squamous cell carcinoma, endometrial adenocarcinoma, breast cancer, and glioma.
Pssm-ID: 259811 [Multi-domain] Cd Length: 111 Bit Score: 55.56 E-value: 1.26e-09
Slipin-4 (SLP-4), an uncharacterized subgroup of the stomatin-like proteins (slipins) family; ...
120-265
1.37e-09
Slipin-4 (SLP-4), an uncharacterized subgroup of the stomatin-like proteins (slipins) family; belonging to the SPFH (stomatin, prohibitin, flotillin, and HflK/C) superfamily; This model summarizes a subgroup of the stomatin-like protein family (SLPs or slipins) that is found in arthropods. The conserved domain common to the SPFH superfamily has also been referred to as the Band 7 domain. Individual proteins of the SPFH superfamily may cluster to form membrane microdomains which may in turn recruit multiprotein complexes. Members of this divergent slipin subgroup remain largely uncharacterized. It contains Drosophila Mec2, the gene for which was identified in a screen for genes required for nephrocyte function; it may function together with Sns in maintaining nephrocyte diaphragm.
Pssm-ID: 259813 [Multi-domain] Cd Length: 208 Bit Score: 57.78 E-value: 1.37e-09
Bacterial membrane protein N terminal; This domain is found in bacteria. This domain is ...
2-46
6.06e-09
Bacterial membrane protein N terminal; This domain is found in bacteria. This domain is typically between 65 to 81 amino acids in length. This domain is found associated with pfam01145. This domain is the N terminal of the bacterial membrane protein HflK. HflK complexes with HflC to form a membrane protease which is modulated by the GTPase HflX. The N terminal domain of HflK is the membrane spanning region which anchors the protein in the bacterial membrane.
Pssm-ID: 463497 Cd Length: 43 Bit Score: 51.52 E-value: 6.06e-09
Stomatin, a subgroup of the stomatin-like proteins (slipins) family; belonging to the SPFH ...
120-290
3.30e-07
Stomatin, a subgroup of the stomatin-like proteins (slipins) family; belonging to the SPFH (stomatin, prohibitin, flotillin, and HflK/C) superfamily; Stomatin (or band 7) is widely expressed and, highly expressed in red blood cells. It localizes predominantly to the plasma membrane and to intracellular vesicles of the endocytic pathway, where it is present in higher order homo-oligomeric complexes (of between 9 and 12 monomers). Stomatin interacts with and regulates members of the degenerin/epithelia Na+ channel family in mechanosensory cells of Caenorhabditis elegans and vertebrate neurons and, is implicated in trafficking of Glut1 glucose transporters. This subgroup found in animals, also contains proteins similar to Caenorhabditis elegans MEC-2. MEC-2 interacts with MEC-4, which is part of the degenerin channel complex required for response to gentle body touch.
Pssm-ID: 259801 [Multi-domain] Cd Length: 202 Bit Score: 50.63 E-value: 3.30e-07
Uncharacterized family; SPFH (stomatin, prohibitin, flotillin, and HflK/C) superfamily; This ...
95-202
3.24e-06
Uncharacterized family; SPFH (stomatin, prohibitin, flotillin, and HflK/C) superfamily; This model summarizes an uncharacterized family of proteins similar to stomatin, prohibitin, flotillin, HflK/C (SPFH) and podocin. The conserved domain common to the SPFH superfamily has also been referred to as the Band 7 domain. Many superfamily members are associated with lipid rafts. Individual proteins of the SPFH superfamily may cluster to form membrane microdomains which may in turn recruit multiprotein complexes. Microdomains formed from flotillin proteins may in addition be dynamic units with their own regulatory functions. Flotillins have been implicated in signal transduction, vesicle trafficking, cytoskeleton rearrangement and are known to interact with a variety of proteins. Stomatin interacts with and regulates members of the degenerin/epithelia Na+ channel family in mechanosensory cells of Caenorhabditis elegans and vertebrate neurons and participates in trafficking of Glut1 glucose transporters. Prohibitin may act as a chaperone for the stabilization of mitochondrial proteins. Prokaryotic HflK/C plays a role in the decision between lysogenic and lytic cycle growth during lambda phage infection. Flotillins have been implicated in the progression of prion disease, in the pathogenesis of neurodegenerative diseases such as Parkinson's and Alzheimer's disease, and in cancer invasion and metastasis. Mutations in the podocin gene give rise to autosomal recessive steroid resistant nephritic syndrome.
Pssm-ID: 259800 Cd Length: 231 Bit Score: 47.93 E-value: 3.24e-06
Uncharacterized prokaryotic subgroup of the stomatin-like proteins (slipins) family; belonging ...
150-324
3.29e-05
Uncharacterized prokaryotic subgroup of the stomatin-like proteins (slipins) family; belonging to the SPFH (stomatin, prohibitin, flotillin, and HflK/C) superfamily; This model summarizes a subgroup of the stomatin-like protein family (SLPs or slipins) that is found in bacteria and archaebacteria. The conserved domain common to the SPFH superfamily has also been referred to as the Band 7 domain. Individual proteins of the SPFH superfamily may cluster to form membrane microdomains which may in turn recruit multiprotein complexes. Bacterial and archaebacterial SLPs remain uncharacterized. This subgroup contains PH1511 from the hyperthermophilic archaeon Pyrococcus horikoshi.
Pssm-ID: 259808 [Multi-domain] Cd Length: 178 Bit Score: 44.04 E-value: 3.29e-05
Uncharacterized prokaryotic subfamily of the stomatin-like proteins (slipins), a subgroup of ...
150-294
1.68e-03
Uncharacterized prokaryotic subfamily of the stomatin-like proteins (slipins), a subgroup of the SPFH family (stomatin, prohibitin, flotillin, and HflK/C); This model summarizes a subgroup of the stomatin-like protein family (SLPs or slipins) that is found in bacteria and archaebacteria. The conserved domain common to the SPFH superfamily has also been referred to as the Band 7 domain. Individual proteins of the SPFH superfamily may cluster to form membrane microdomains which may in turn recruit multiprotein complexes. Bacterial and archaebacterial SLPs remain uncharacterized.
Pssm-ID: 259817 [Multi-domain] Cd Length: 177 Bit Score: 39.15 E-value: 1.68e-03
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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