NCBI Home Page NCBI Site Search page NCBI Guide that lists and describes the NCBI resources
Conserved domains on  [gi|6912366|ref|NP_036309|]
View 

F-box only protein 5 isoform a [Homo sapiens]

Protein Classification

F-box only protein 5( domain architecture ID 17779917)

F-box only protein 5 functions as a regulator of APC activity during mitotic and meiotic cell cycle; during mitotic cell cycle, it plays a role as both substrate and inhibitor of the APC-FZR1 complex

CATH:  1.20.1280.50
Gene Symbol:  FBXO5
Gene Ontology:  GO:0046872|GO:0010997|GO:0016567
SCOP:  4001927

Graphical summary

 Zoom to residue level

show extra options »

Show site features     Horizontal zoom: ×

List of domain hits

Name Accession Description Interval E-value
BRcat_RBR_FBXO5 cd20364
BRcat domain found in F-box only protein 5 (FBXO5); FBXO5, also called FBX5 or early mitotic ...
369-425 2.78e-27

BRcat domain found in F-box only protein 5 (FBXO5); FBXO5, also called FBX5 or early mitotic inhibitor 1 (EMI1), acts as a regulator that inhibits the anaphase-promoting complex/cyclosome (APC/C), which controls cell cycle progression through the sequential degradation of various substrates from S phase to early mitosis. During mitotic cell cycle, it plays a role as both substrate and inhibitor of the APC-FZR1 complex. During G1 phase, it plays a role as substrate of the APC-FZR1 complex E3 ligase. FBXO5 contains an F-box domain, and the first half of the RBR domain that was previously known as RING-BetweenRING-RING domain or TRIAD [two RING fingers and a DRIL (double RING finger linked)] domain. Based on current understanding of the structural biology of RBR ligases, the nomenclature of RBR has been changed to RING1-BRcat (benign-catalytic)-Rcat (required-for-catalysis) recently. The RBR domain uses an auto-inhibitory mechanism to modulate ubiquitination activity, as well as a hybrid mechanism that combines aspects from both RING and HECT E3 ligase functions to facilitate the ubiquitination reaction. This model corresponds to the BRcat domain of FBXO5 that adopts the same fold as the Rcat domain while lacking the catalytic cysteine residue and ubiquitination activity.


:

Pssm-ID: 439025  Cd Length: 57  Bit Score: 103.33  E-value: 2.78e-27
                        10        20        30        40        50
                ....*....|....*....|....*....|....*....|....*....|....*..
gi 6912366  369 LKKNESLKACIRCNSPAKYDCYLQRATCKREGCGFDYCTKCLCNYHTTKDCSDGKLL 425
Cdd:cd20364   1 LKNDESLKACVRCNSPAKYDPYLQRATCTRESCGFDFCTKCLCKYHGSKDCLNGKPL 57
F-box_FBXO5 cd22170
F-box domain found in F-box only protein 5 (FBXO5) and similar proteins; FBXO5, also called ...
248-296 8.12e-22

F-box domain found in F-box only protein 5 (FBXO5) and similar proteins; FBXO5, also called FBX5, or early mitotic inhibitor 1 (EMI1), acts as a regulator that inhibits the anaphase-promoting complex/cyclosome (APC/C), which controls cell cycle progression through the sequential degradation of various substrates from S phase to early mitosis. During mitotic cell cycle, it plays a role as both substrate and inhibitor of the APC-FZR1 complex. During G1 phase, it plays a role as substrate of the APC-FZR1 complex E3 ligase. The F-box domain has a role in mediating protein-protein interactions in a variety of contexts, such as polyubiquitination, transcription elongation, centromere binding and translational repression.


:

Pssm-ID: 438941  Cd Length: 49  Bit Score: 87.86  E-value: 8.12e-22
                        10        20        30        40
                ....*....|....*....|....*....|....*....|....*....
gi 6912366  248 SELFRRGLRHVLATILAQLSDMDLINVSKVSTTWKKILEDDKGAFQLYS 296
Cdd:cd22170   1 AELFLRDLKHVLAKILRHLSDMDLINCSKVSTTWRKILQEDKWAFQIYS 49
 
Name Accession Description Interval E-value
BRcat_RBR_FBXO5 cd20364
BRcat domain found in F-box only protein 5 (FBXO5); FBXO5, also called FBX5 or early mitotic ...
369-425 2.78e-27

BRcat domain found in F-box only protein 5 (FBXO5); FBXO5, also called FBX5 or early mitotic inhibitor 1 (EMI1), acts as a regulator that inhibits the anaphase-promoting complex/cyclosome (APC/C), which controls cell cycle progression through the sequential degradation of various substrates from S phase to early mitosis. During mitotic cell cycle, it plays a role as both substrate and inhibitor of the APC-FZR1 complex. During G1 phase, it plays a role as substrate of the APC-FZR1 complex E3 ligase. FBXO5 contains an F-box domain, and the first half of the RBR domain that was previously known as RING-BetweenRING-RING domain or TRIAD [two RING fingers and a DRIL (double RING finger linked)] domain. Based on current understanding of the structural biology of RBR ligases, the nomenclature of RBR has been changed to RING1-BRcat (benign-catalytic)-Rcat (required-for-catalysis) recently. The RBR domain uses an auto-inhibitory mechanism to modulate ubiquitination activity, as well as a hybrid mechanism that combines aspects from both RING and HECT E3 ligase functions to facilitate the ubiquitination reaction. This model corresponds to the BRcat domain of FBXO5 that adopts the same fold as the Rcat domain while lacking the catalytic cysteine residue and ubiquitination activity.


Pssm-ID: 439025  Cd Length: 57  Bit Score: 103.33  E-value: 2.78e-27
                        10        20        30        40        50
                ....*....|....*....|....*....|....*....|....*....|....*..
gi 6912366  369 LKKNESLKACIRCNSPAKYDCYLQRATCKREGCGFDYCTKCLCNYHTTKDCSDGKLL 425
Cdd:cd20364   1 LKNDESLKACVRCNSPAKYDPYLQRATCTRESCGFDFCTKCLCKYHGSKDCLNGKPL 57
F-box_FBXO5 cd22170
F-box domain found in F-box only protein 5 (FBXO5) and similar proteins; FBXO5, also called ...
248-296 8.12e-22

F-box domain found in F-box only protein 5 (FBXO5) and similar proteins; FBXO5, also called FBX5, or early mitotic inhibitor 1 (EMI1), acts as a regulator that inhibits the anaphase-promoting complex/cyclosome (APC/C), which controls cell cycle progression through the sequential degradation of various substrates from S phase to early mitosis. During mitotic cell cycle, it plays a role as both substrate and inhibitor of the APC-FZR1 complex. During G1 phase, it plays a role as substrate of the APC-FZR1 complex E3 ligase. The F-box domain has a role in mediating protein-protein interactions in a variety of contexts, such as polyubiquitination, transcription elongation, centromere binding and translational repression.


Pssm-ID: 438941  Cd Length: 49  Bit Score: 87.86  E-value: 8.12e-22
                        10        20        30        40
                ....*....|....*....|....*....|....*....|....*....
gi 6912366  248 SELFRRGLRHVLATILAQLSDMDLINVSKVSTTWKKILEDDKGAFQLYS 296
Cdd:cd22170   1 AELFLRDLKHVLAKILRHLSDMDLINCSKVSTTWRKILQEDKWAFQIYS 49
F-box pfam00646
F-box domain; This domain is approximately 50 amino acids long, and is usually found in the ...
257-289 5.36e-03

F-box domain; This domain is approximately 50 amino acids long, and is usually found in the N-terminal half of a variety of proteins. Two motifs that are commonly found associated with the F-box domain are the leucine rich repeats (LRRs; pfam00560 and pfam07723) and the WD repeat (pfam00400). The F-box domain has a role in mediating protein-protein interactions in a variety of contexts, such as polyubiquitination, transcription elongation, centromere binding and translational repression.


Pssm-ID: 425796  Cd Length: 43  Bit Score: 34.82  E-value: 5.36e-03
                          10        20        30
                  ....*....|....*....|....*....|...
gi 6912366    257 HVLATILAQLSDMDLINVSKVSTTWKKILEDDK 289
Cdd:pfam00646   7 DLLLEILSRLDPKDLLRLSLVSKRWRSLVDSLK 39
 
Name Accession Description Interval E-value
BRcat_RBR_FBXO5 cd20364
BRcat domain found in F-box only protein 5 (FBXO5); FBXO5, also called FBX5 or early mitotic ...
369-425 2.78e-27

BRcat domain found in F-box only protein 5 (FBXO5); FBXO5, also called FBX5 or early mitotic inhibitor 1 (EMI1), acts as a regulator that inhibits the anaphase-promoting complex/cyclosome (APC/C), which controls cell cycle progression through the sequential degradation of various substrates from S phase to early mitosis. During mitotic cell cycle, it plays a role as both substrate and inhibitor of the APC-FZR1 complex. During G1 phase, it plays a role as substrate of the APC-FZR1 complex E3 ligase. FBXO5 contains an F-box domain, and the first half of the RBR domain that was previously known as RING-BetweenRING-RING domain or TRIAD [two RING fingers and a DRIL (double RING finger linked)] domain. Based on current understanding of the structural biology of RBR ligases, the nomenclature of RBR has been changed to RING1-BRcat (benign-catalytic)-Rcat (required-for-catalysis) recently. The RBR domain uses an auto-inhibitory mechanism to modulate ubiquitination activity, as well as a hybrid mechanism that combines aspects from both RING and HECT E3 ligase functions to facilitate the ubiquitination reaction. This model corresponds to the BRcat domain of FBXO5 that adopts the same fold as the Rcat domain while lacking the catalytic cysteine residue and ubiquitination activity.


Pssm-ID: 439025  Cd Length: 57  Bit Score: 103.33  E-value: 2.78e-27
                        10        20        30        40        50
                ....*....|....*....|....*....|....*....|....*....|....*..
gi 6912366  369 LKKNESLKACIRCNSPAKYDCYLQRATCKREGCGFDYCTKCLCNYHTTKDCSDGKLL 425
Cdd:cd20364   1 LKNDESLKACVRCNSPAKYDPYLQRATCTRESCGFDFCTKCLCKYHGSKDCLNGKPL 57
F-box_FBXO5 cd22170
F-box domain found in F-box only protein 5 (FBXO5) and similar proteins; FBXO5, also called ...
248-296 8.12e-22

F-box domain found in F-box only protein 5 (FBXO5) and similar proteins; FBXO5, also called FBX5, or early mitotic inhibitor 1 (EMI1), acts as a regulator that inhibits the anaphase-promoting complex/cyclosome (APC/C), which controls cell cycle progression through the sequential degradation of various substrates from S phase to early mitosis. During mitotic cell cycle, it plays a role as both substrate and inhibitor of the APC-FZR1 complex. During G1 phase, it plays a role as substrate of the APC-FZR1 complex E3 ligase. The F-box domain has a role in mediating protein-protein interactions in a variety of contexts, such as polyubiquitination, transcription elongation, centromere binding and translational repression.


Pssm-ID: 438941  Cd Length: 49  Bit Score: 87.86  E-value: 8.12e-22
                        10        20        30        40
                ....*....|....*....|....*....|....*....|....*....
gi 6912366  248 SELFRRGLRHVLATILAQLSDMDLINVSKVSTTWKKILEDDKGAFQLYS 296
Cdd:cd22170   1 AELFLRDLKHVLAKILRHLSDMDLINCSKVSTTWRKILQEDKWAFQIYS 49
BRcat_RBR_EMI cd20348
BRcat domain found in early mitotic inhibitor (EMI) subfamily of F-box proteins; The EMI ...
372-420 6.36e-19

BRcat domain found in early mitotic inhibitor (EMI) subfamily of F-box proteins; The EMI subfamily includes FBXO5 (EMI1) and FBXO43 (EMI2), which are anaphase-promoting-complex/cyclosome (APC/C) inhibitors that bind APC/C-CCD20 (Cell division cycle protein 20) and/or APC/C-CDH1 (CDC20 homolog 1) complexes. FBXO5, also called FBX5, or early mitotic inhibitor 1 (EMI1), acts as a regulator that inhibits the anaphase-promoting complex/cyclosome (APC/C), which controls cell cycle progression through the sequential degradation of various substrates from S phase to early mitosis. During the mitotic cell cycle, it plays a role as both substrate and inhibitor of the APC-FZR1 complex. During G1 phase, it plays a role as substrate of the APC-FZR1 complex E3 ligase. FBXO43, also called FBX43, or endogenous meiotic inhibitor 2 (EMI2), plays a key role during the meiotic cell cycle. It is required to establish and maintain the arrest of oocytes at the second meiotic metaphase until fertilization. It probably acts by inhibiting the APC/C ubiquitin ligase. It may recognize and bind to some phosphorylated proteins and promote their ubiquitination and degradation. Both FBXO5 and FBXO43 contain an F-box domain, and the first half of the RBR domain that was previously known as RING-BetweenRING-RING domain or TRIAD [two RING fingers and a DRIL (double RING finger linked)] domain. Based on current understanding of the structural biology of RBR ligases, the nomenclature of RBR has been changed to RING1-BRcat (benign-catalytic)-Rcat (required-for-catalysis) recently. The RBR domain uses an auto-inhibitory mechanism to modulate ubiquitination activity, as well as a hybrid mechanism that combines aspects from both RING and HECT E3 ligase functions to facilitate the ubiquitination reaction. This model corresponds to the BRcat domain of the EMI subfamily that adopts the same fold as the Rcat domain while lacking the catalytic cysteine residue and ubiquitination activity.


Pssm-ID: 439009  Cd Length: 51  Bit Score: 80.09  E-value: 6.36e-19
                        10        20        30        40
                ....*....|....*....|....*....|....*....|....*....
gi 6912366  372 NESLKACIRCNSPAKYDCYLQRATCKREGCGFDYCTKCLCNYHTTKDCS 420
Cdd:cd20348   1 GESLRPCPRCSSPAKVDPVEQRATCTRETCGFDFCTKCLCEFHGSKPCP 49
BRcat_RBR_FBXO43 cd20365
BRcat domain found in F-box only protein 43 (FBXO43); FBXO43, also called FBX43 or endogenous ...
372-422 1.18e-15

BRcat domain found in F-box only protein 43 (FBXO43); FBXO43, also called FBX43 or endogenous meiotic inhibitor 2 (EMI2), plays a key role during the meiotic cell cycle. It is required to establish and maintain the arrest of oocytes at the second meiotic metaphase until fertilization. It probably acts by inhibiting the anaphase-promoting complex/cyclosome (APC/C) ubiquitin ligase. It may recognize and bind to some phosphorylated proteins and promotes their ubiquitination and degradation. FBXO43 contains an F-box domain, and the first half of the RBR domain that was previously known as RING-BetweenRING-RING domain or TRIAD [two RING fingers and a DRIL (double RING finger linked)] domain. Based on current understanding of the structural biology of RBR ligases, the nomenclature of RBR has been changed to RING1-BRcat (benign-catalytic)-Rcat (required-for-catalysis) recently. The RBR domain uses an auto-inhibitory mechanism to modulate ubiquitination activity, as well as a hybrid mechanism that combines aspects from both RING and HECT E3 ligase functions to facilitate the ubiquitination reaction. This model corresponds to the BRcat (benign-catalytic) domain that adopts the same fold as the Rcat domain while lacking the catalytic cysteine residue and ubiquitination activity.


Pssm-ID: 439026  Cd Length: 51  Bit Score: 70.59  E-value: 1.18e-15
                        10        20        30        40        50
                ....*....|....*....|....*....|....*....|....*....|.
gi 6912366  372 NESLKACIRCNSPAKYDCYLQRATCKREGCGFDYCTKCLCNYHTTKDCSDG 422
Cdd:cd20365   1 DEALKPCPRCQSPAKYQPVKKRGLCSREACGFDFCVLCLCAFHGSKECTSG 51
F-box_EMI cd22086
F-box domain found in the early mitotic inhibitor (EMI) family of F-box proteins; The EMI ...
248-295 8.25e-13

F-box domain found in the early mitotic inhibitor (EMI) family of F-box proteins; The EMI family includes FBX5 (EMI1) and FBX43 (EMI2), which are anaphase-promoting complex/cyclosome (APC/C) inhibitors that bind APC/C-CCD20 (Cell division cycle protein 20) and/or APC/C-CDH1 (CDC20 homologue 1) complexes. The F-box domain has a role in mediating protein-protein interactions in a variety of contexts, such as polyubiquitination, transcription elongation, centromere binding and translational repression.


Pssm-ID: 438858  Cd Length: 48  Bit Score: 62.51  E-value: 8.25e-13
                        10        20        30        40
                ....*....|....*....|....*....|....*....|....*...
gi 6912366  248 SELFRRGLRHVLATILAQLSDMDLINVSKVSTTWKKILEDDKGAFQLY 295
Cdd:cd22086   1 SELHKRNCPHILSKILSYLSPEDLCRVSCVSKTWRQICLSDPKANRRR 48
F-box_FBXO43 cd22171
F-box domain found in F-box only protein 43 (FBXO43) and similar proteins; FBXO43, also called ...
248-293 2.04e-06

F-box domain found in F-box only protein 43 (FBXO43) and similar proteins; FBXO43, also called FBX43, or endogenous meiotic inhibitor 2 (EMI2), plays a key role during the meiotic cell cycle. It is required to establish and maintain the arrest of oocytes at the second meiotic metaphase until fertilization. It probably acts by inhibiting the anaphase-promoting complex/cyclosome (APC/C) ubiquitin ligase. It may recognize and bind to some phosphorylated proteins and promote their ubiquitination and degradation. The F-box domain has a role in mediating protein-protein interactions in a variety of contexts, such as polyubiquitination, transcription elongation, centromere binding and translational repression.


Pssm-ID: 438942  Cd Length: 49  Bit Score: 44.39  E-value: 2.04e-06
                        10        20        30        40
                ....*....|....*....|....*....|....*....|....*.
gi 6912366  248 SELFRRGLRHVLATILAQLSDMDLINVSKVSTTWKKILEDDKGAFQ 293
Cdd:cd22171   1 AELKNRNLKHILAIILDLLTAESICSFWKVSKNWRDIIVQDKSAYQ 46
F-box pfam00646
F-box domain; This domain is approximately 50 amino acids long, and is usually found in the ...
257-289 5.36e-03

F-box domain; This domain is approximately 50 amino acids long, and is usually found in the N-terminal half of a variety of proteins. Two motifs that are commonly found associated with the F-box domain are the leucine rich repeats (LRRs; pfam00560 and pfam07723) and the WD repeat (pfam00400). The F-box domain has a role in mediating protein-protein interactions in a variety of contexts, such as polyubiquitination, transcription elongation, centromere binding and translational repression.


Pssm-ID: 425796  Cd Length: 43  Bit Score: 34.82  E-value: 5.36e-03
                          10        20        30
                  ....*....|....*....|....*....|...
gi 6912366    257 HVLATILAQLSDMDLINVSKVSTTWKKILEDDK 289
Cdd:pfam00646   7 DLLLEILSRLDPKDLLRLSLVSKRWRSLVDSLK 39
 
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.
Help | Disclaimer | Write to the Help Desk
NCBI | NLM | NIH