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Conserved domains on  [gi|1072231973|gb|OEU16705|]
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E3 ubiquitin ligase SCF complex, Skp subunit [Fragilariopsis cylindrus CCMP1102]

Protein Classification

SKP1 family protein( domain architecture ID 13034557)

SKP1 family protein may be a component of E3 ubiquitin ligase SCF complex involved in ubiquitination and subsequent proteasomal degradation of target proteins; similar to Homo sapiens S-phase kinase-associated protein 1 (SKP1)

CATH:  3.30.710.10
Gene Ontology:  GO:0006511
PubMed:  35345853|12678488
SCOP:  4001926|4001139

Graphical summary

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List of domain hits

 Name Accession Description Interval E-value
BTB_POZ_SKP1 cd18322
BTB (Broad-Complex, Tramtrack and Bric a brac) /POZ (poxvirus and zinc finger) domain found in ...
 7-138 6.67e-38

BTB (Broad-Complex, Tramtrack and Bric a brac) /POZ (poxvirus and zinc finger) domain found in S-phase kinase-associated protein 1 (SKP1) and similar proteins; SKP1 is also called cyclin-A/CDK2-associated protein p19 (p19A), organ of Corti protein 2 (OCP-2), organ of Corti protein II (OCP-II), RNA polymerase II elongation factor-like protein, transcription elongation factor B polypeptide 1-like, or p19skp1. It is an essential component of the SCF (SKP1-CUL1-F-box protein) ubiquitin ligase complex, which mediates the ubiquitination of proteins involved in cell cycle progression, signal transduction and transcription. SKP1 serves as an adaptor protein that links the F-box protein to CUL1. SKP1 and CUL1 are invariant components of all SCF complexes, while F-box proteins are variable substrate binding modules that determine specificity. SKP1 belongs to the BTB/POZ domain family; the domain is a common protein-protein interaction motif of about 100 amino acids.


:

Pssm-ID: 349631  Cd Length: 120  Bit Score: 126.94  E-value: 6.67e-38
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1072231973   7 IVKLVSKEGDVHEVPINVAKMSSLILSTLDDDEEDDDddeetkkhlEIPLPNVKNAVLTKVIEYCKHYTNDEAmtqIQTP 86
Cdd:cd18322     1 KIKLQSSDGEIFEVDEEVARQSVTIKNMLEDLGYDDD---------PIPLPNVTSKILKKVIEWCEHHKDDPP---PEID 68

                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|..
gi 1072231973  87 LKSSKIEDLVQTWYAGFVDVEQTLLFELVTAANFMDIKPLLDLTCLAVSISI 138
Cdd:cd18322    69 LDSEKRTDDIPEWDAEFLKVDQDTLFELILAANYLDIKGLLDLTCKTVANMI 120
Skp1 pfam01466
Skp1 family, dimerization domain;
124-170 2.33e-18

Skp1 family, dimerization domain;


:

Pssm-ID: 460222  Cd Length: 48  Bit Score: 74.46  E-value: 2.33e-18
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*..
gi 1072231973 124 KPLLDLTCLAVSISIKGKTAPQLREIFNISNDFSQEEEAQVREESQW 170
Cdd:pfam01466   1 KGLLDLTCKTVADMIKGKTPEEIREIFNIENDFTPEEEEEIRKENAW 47
 
Name Accession Description Interval E-value
BTB_POZ_SKP1 cd18322
BTB (Broad-Complex, Tramtrack and Bric a brac) /POZ (poxvirus and zinc finger) domain found in ...
 7-138 6.67e-38

BTB (Broad-Complex, Tramtrack and Bric a brac) /POZ (poxvirus and zinc finger) domain found in S-phase kinase-associated protein 1 (SKP1) and similar proteins; SKP1 is also called cyclin-A/CDK2-associated protein p19 (p19A), organ of Corti protein 2 (OCP-2), organ of Corti protein II (OCP-II), RNA polymerase II elongation factor-like protein, transcription elongation factor B polypeptide 1-like, or p19skp1. It is an essential component of the SCF (SKP1-CUL1-F-box protein) ubiquitin ligase complex, which mediates the ubiquitination of proteins involved in cell cycle progression, signal transduction and transcription. SKP1 serves as an adaptor protein that links the F-box protein to CUL1. SKP1 and CUL1 are invariant components of all SCF complexes, while F-box proteins are variable substrate binding modules that determine specificity. SKP1 belongs to the BTB/POZ domain family; the domain is a common protein-protein interaction motif of about 100 amino acids.


Pssm-ID: 349631  Cd Length: 120  Bit Score: 126.94  E-value: 6.67e-38
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1072231973   7 IVKLVSKEGDVHEVPINVAKMSSLILSTLDDDEEDDDddeetkkhlEIPLPNVKNAVLTKVIEYCKHYTNDEAmtqIQTP 86
Cdd:cd18322     1 KIKLQSSDGEIFEVDEEVARQSVTIKNMLEDLGYDDD---------PIPLPNVTSKILKKVIEWCEHHKDDPP---PEID 68

                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|..
gi 1072231973  87 LKSSKIEDLVQTWYAGFVDVEQTLLFELVTAANFMDIKPLLDLTCLAVSISI 138
Cdd:cd18322    69 LDSEKRTDDIPEWDAEFLKVDQDTLFELILAANYLDIKGLLDLTCKTVANMI 120
SKP1 COG5201
SCF ubiquitin ligase, SKP1 component [Posttranslational modification, protein turnover, ...
 8-173 2.58e-33

SCF ubiquitin ligase, SKP1 component [Posttranslational modification, protein turnover, chaperones];


Pssm-ID: 227528 [Multi-domain]  Cd Length: 158  Bit Score: 116.58  E-value: 2.58e-33
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1072231973   8 VKLVSKEGDVHEVPINVAKMSSLILSTLDDDeedddddeeTKKHLEIPLPNVKNAVLTKVIEYCKHYTNdeAMTQIQTPL 87
Cdd:COG5201     4 IELESIDGEIFRVDENIAERSILIKNMLCDS---------TACNYPIPAPNVRSSVLMKVQEWMEHHTS--SLSEDENDL 72

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1072231973  88 KSSKIEDlVQTWYAGFVDVEQTLLFELVTAANFMDIKPLLDLTCLAVSISIKGKTAPQLREIFNISNDFSQEEEAQVREE 167
Cdd:COG5201    73 EIRKSKP-SDFWDRFFMEVDQEMLLEICLAANYLEIKPLLDLGCKIVAEMIRGKSPEEIRETFNIENDFTPEEERRIRKE 151


                  ....*.
gi 1072231973 168 SQWSQE 173
Cdd:COG5201   152 NEWAED 157
Skp1 smart00512
Found in Skp1 protein family; Family of Skp1 (kinetochore protein required for cell cycle ...
 8-123 2.31e-19

Found in Skp1 protein family; Family of Skp1 (kinetochore protein required for cell cycle progression) and elongin C (subunit of RNA polymerase II transcription factor SIII) homologues.


Pssm-ID: 214704  Cd Length: 104  Bit Score: 78.87  E-value: 2.31e-19
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1072231973    8 VKLVSKEGDVHEVPINVAKMSSLILSTLDDDEEDddddeeTKKHLEIPLPNVKNAVLTKVIEYCKHYTNDEamtqiqtpl 87
Cdd:smart00512   4 IKLISSDGEVFEVEREVARQSKTIKAMIEDLGVD------DENNNPIPLPNVTSKILSKVIEYCEHHVDDP--------- 68

                           90       100       110
                   ....*....|....*....|....*....|....*.
gi 1072231973   88 KSSKIEDLVQTWYAGFVDVEQTLLFELVTAANFMDI 123
Cdd:smart00512  69 PSVADKDDIPTWDAEFLKIDQETLFELILAANYLDI 104
Skp1 pfam01466
Skp1 family, dimerization domain;
124-170 2.33e-18

Skp1 family, dimerization domain;


Pssm-ID: 460222  Cd Length: 48  Bit Score: 74.46  E-value: 2.33e-18
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*..
gi 1072231973 124 KPLLDLTCLAVSISIKGKTAPQLREIFNISNDFSQEEEAQVREESQW 170
Cdd:pfam01466   1 KGLLDLTCKTVADMIKGKTPEEIREIFNIENDFTPEEEEEIRKENAW 47
Skp1_POZ pfam03931
Skp1 family, tetramerization domain;
8-76 2.58e-08

Skp1 family, tetramerization domain;


Pssm-ID: 397838  Cd Length: 60  Bit Score: 48.45  E-value: 2.58e-08
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1072231973   8 VKLVSKEGDVHEVPINVAKMSSLILSTLDDDEEDddddeetkkhlEIPLPNVKNAVLTKVIEYCKHYTN 76
Cdd:pfam03931   3 IVLQSSDGESFEVEEAVARKSKTIKHMIEDDGDD-----------PIPLPNVTSKILEKVIEYCKHHRV 60
 
Name Accession Description Interval E-value
BTB_POZ_SKP1 cd18322
BTB (Broad-Complex, Tramtrack and Bric a brac) /POZ (poxvirus and zinc finger) domain found in ...
 7-138 6.67e-38

BTB (Broad-Complex, Tramtrack and Bric a brac) /POZ (poxvirus and zinc finger) domain found in S-phase kinase-associated protein 1 (SKP1) and similar proteins; SKP1 is also called cyclin-A/CDK2-associated protein p19 (p19A), organ of Corti protein 2 (OCP-2), organ of Corti protein II (OCP-II), RNA polymerase II elongation factor-like protein, transcription elongation factor B polypeptide 1-like, or p19skp1. It is an essential component of the SCF (SKP1-CUL1-F-box protein) ubiquitin ligase complex, which mediates the ubiquitination of proteins involved in cell cycle progression, signal transduction and transcription. SKP1 serves as an adaptor protein that links the F-box protein to CUL1. SKP1 and CUL1 are invariant components of all SCF complexes, while F-box proteins are variable substrate binding modules that determine specificity. SKP1 belongs to the BTB/POZ domain family; the domain is a common protein-protein interaction motif of about 100 amino acids.


Pssm-ID: 349631  Cd Length: 120  Bit Score: 126.94  E-value: 6.67e-38
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1072231973   7 IVKLVSKEGDVHEVPINVAKMSSLILSTLDDDEEDDDddeetkkhlEIPLPNVKNAVLTKVIEYCKHYTNDEAmtqIQTP 86
Cdd:cd18322     1 KIKLQSSDGEIFEVDEEVARQSVTIKNMLEDLGYDDD---------PIPLPNVTSKILKKVIEWCEHHKDDPP---PEID 68

                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|..
gi 1072231973  87 LKSSKIEDLVQTWYAGFVDVEQTLLFELVTAANFMDIKPLLDLTCLAVSISI 138
Cdd:cd18322    69 LDSEKRTDDIPEWDAEFLKVDQDTLFELILAANYLDIKGLLDLTCKTVANMI 120
SKP1 COG5201
SCF ubiquitin ligase, SKP1 component [Posttranslational modification, protein turnover, ...
 8-173 2.58e-33

SCF ubiquitin ligase, SKP1 component [Posttranslational modification, protein turnover, chaperones];


Pssm-ID: 227528 [Multi-domain]  Cd Length: 158  Bit Score: 116.58  E-value: 2.58e-33
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1072231973   8 VKLVSKEGDVHEVPINVAKMSSLILSTLDDDeedddddeeTKKHLEIPLPNVKNAVLTKVIEYCKHYTNdeAMTQIQTPL 87
Cdd:COG5201     4 IELESIDGEIFRVDENIAERSILIKNMLCDS---------TACNYPIPAPNVRSSVLMKVQEWMEHHTS--SLSEDENDL 72

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1072231973  88 KSSKIEDlVQTWYAGFVDVEQTLLFELVTAANFMDIKPLLDLTCLAVSISIKGKTAPQLREIFNISNDFSQEEEAQVREE 167
Cdd:COG5201    73 EIRKSKP-SDFWDRFFMEVDQEMLLEICLAANYLEIKPLLDLGCKIVAEMIRGKSPEEIRETFNIENDFTPEEERRIRKE 151


                  ....*.
gi 1072231973 168 SQWSQE 173
Cdd:COG5201   152 NEWAED 157
Skp1 smart00512
Found in Skp1 protein family; Family of Skp1 (kinetochore protein required for cell cycle ...
 8-123 2.31e-19

Found in Skp1 protein family; Family of Skp1 (kinetochore protein required for cell cycle progression) and elongin C (subunit of RNA polymerase II transcription factor SIII) homologues.


Pssm-ID: 214704  Cd Length: 104  Bit Score: 78.87  E-value: 2.31e-19
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1072231973    8 VKLVSKEGDVHEVPINVAKMSSLILSTLDDDEEDddddeeTKKHLEIPLPNVKNAVLTKVIEYCKHYTNDEamtqiqtpl 87
Cdd:smart00512   4 IKLISSDGEVFEVEREVARQSKTIKAMIEDLGVD------DENNNPIPLPNVTSKILSKVIEYCEHHVDDP--------- 68

                           90       100       110
                   ....*....|....*....|....*....|....*.
gi 1072231973   88 KSSKIEDLVQTWYAGFVDVEQTLLFELVTAANFMDI 123
Cdd:smart00512  69 PSVADKDDIPTWDAEFLKIDQETLFELILAANYLDI 104
Skp1 pfam01466
Skp1 family, dimerization domain;
124-170 2.33e-18

Skp1 family, dimerization domain;


Pssm-ID: 460222  Cd Length: 48  Bit Score: 74.46  E-value: 2.33e-18
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*..
gi 1072231973 124 KPLLDLTCLAVSISIKGKTAPQLREIFNISNDFSQEEEAQVREESQW 170
Cdd:pfam01466   1 KGLLDLTCKTVADMIKGKTPEEIREIFNIENDFTPEEEEEIRKENAW 47
Skp1_POZ pfam03931
Skp1 family, tetramerization domain;
8-76 2.58e-08

Skp1 family, tetramerization domain;


Pssm-ID: 397838  Cd Length: 60  Bit Score: 48.45  E-value: 2.58e-08
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1072231973   8 VKLVSKEGDVHEVPINVAKMSSLILSTLDDDEEDddddeetkkhlEIPLPNVKNAVLTKVIEYCKHYTN 76
Cdd:pfam03931   3 IVLQSSDGESFEVEEAVARKSKTIKHMIEDDGDD-----------PIPLPNVTSKILEKVIEYCKHHRV 60
BTB_POZ_EloC cd18321
BTB (Broad-Complex, Tramtrack and Bric a brac) /POZ (poxvirus and zinc finger) domain found in ...
 8-123 2.60e-04

BTB (Broad-Complex, Tramtrack and Bric a brac) /POZ (poxvirus and zinc finger) domain found in Elongin-C (EloC) and similar proteins; Elongin-C is also called elongin 15 kDa subunit, RNA polymerase II transcription factor SIII subunit C, SIII p15, or transcription elongation factor B polypeptide 1 (TCEB1). It is a component of SIII (also known as elongin), which is a general transcription elongation factor that increases the RNA polymerase II transcription elongation past template-encoded arresting sites. It forms a regulatory complex with subunit B or elongin-B (BC) that enhances the activity of the transcriptionally active subunit A. The BC complex also functions as an adaptor protein in the proteasomal degradation of target proteins via different E3 ubiquitin ligase complexes, including the von Hippel-Lindau ubiquitination complex CBC (VHL) and the suppressors of cytokine signaling (SOCS) box ubiquitin ligase family. Elongin-C belongs to the BTB/POZ domain family; the domain is a common protein-protein interaction motif of about 100 amino acids.


Pssm-ID: 349630  Cd Length: 95  Bit Score: 38.72  E-value: 2.60e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1072231973   8 VKLVSKEGDVHEVPINVAKMSSLILSTLDDDEEDDDDDEEtkkhlEIPLPNVKNAVLTKVIEYCKH---YTNdeamtqiq 84
Cdd:cd18321     2 VKLISSDGHEFIVDREAAMVSGTIKAMLSGPGQFAENETN-----EVRFPEISSHILEKVCEYFYYkvrYTN-------- 68

                          90       100       110       120
                  ....*....|....*....|....*....|....*....|
gi 1072231973  85 tplKSSKIEDlvqtwyagF-VDVEQTLlfELVTAANFMDI 123
Cdd:cd18321    69 ---SSTEIPE--------FpIPPEIAL--ELLMAANFLDC 95
 
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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