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Conserved domains on  [gi|159163939|pdb|2CT7|A]
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Chain A, RING finger protein 31

Protein Classification

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
BRcat_RBR_HOIP cd20337
BRcat domain found in HOIL-1-interacting protein (HOIP) and similar proteins; HOIP, also ...
9-80 2.55e-40

BRcat domain found in HOIL-1-interacting protein (HOIP) and similar proteins; HOIP, also called RING finger protein 31 (RNF31) or zinc in-between-RING-finger ubiquitin-associated domain protein, together with HOIL-1 and SHARPIN, forms the E3-ligase complex (also known as linear-ubiquitin-chain assembly complex LUBAC) that regulates NF-kappaB activity and apoptosis. It also interacts with the atypical mammalian orphan receptor DAX-1, trigger DAX-1 ubiquitination and stabilization, and participate in repressing steroidogenic gene expression. HOIP contains three Npl4 zinc fingers, a central ubiquitin-associated (UBA) domain responsible for interaction with the N-terminal ubiquitin-like domain (UBL) of HOIL-1L, an RBR domain, and a C-terminal linear chain determining domain (LDD). The RBR domain 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 HOIP and similar proteins that adopt the same fold as the Rcat domain while lacking the catalytic cysteine residue and ubiquitination activity.


:

Pssm-ID: 438998  Cd Length: 78  Bit Score: 127.38  E-value: 2.55e-40
                       10        20        30        40        50        60        70
               ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
2CT7_A       9 LFHKKLTEGVLMRDPKFLWCAQCSFGFIYEREQLEATCPQCHQTFCVRCKRQWEEQHRGRSCEDFQNWKRMN 80
Cdd:cd20337  6 LFQKKLRDRNLMKDPNFRWCAHCSFGFIYEPEQLKMQCPQCGKVTCFKCKKPWEDQHEGISCEQFQEWKREN 77
 
Name Accession Description Interval E-value
BRcat_RBR_HOIP cd20337
BRcat domain found in HOIL-1-interacting protein (HOIP) and similar proteins; HOIP, also ...
9-80 2.55e-40

BRcat domain found in HOIL-1-interacting protein (HOIP) and similar proteins; HOIP, also called RING finger protein 31 (RNF31) or zinc in-between-RING-finger ubiquitin-associated domain protein, together with HOIL-1 and SHARPIN, forms the E3-ligase complex (also known as linear-ubiquitin-chain assembly complex LUBAC) that regulates NF-kappaB activity and apoptosis. It also interacts with the atypical mammalian orphan receptor DAX-1, trigger DAX-1 ubiquitination and stabilization, and participate in repressing steroidogenic gene expression. HOIP contains three Npl4 zinc fingers, a central ubiquitin-associated (UBA) domain responsible for interaction with the N-terminal ubiquitin-like domain (UBL) of HOIL-1L, an RBR domain, and a C-terminal linear chain determining domain (LDD). The RBR domain 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 HOIP and similar proteins that adopt the same fold as the Rcat domain while lacking the catalytic cysteine residue and ubiquitination activity.


Pssm-ID: 438998  Cd Length: 78  Bit Score: 127.38  E-value: 2.55e-40
                       10        20        30        40        50        60        70
               ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
2CT7_A       9 LFHKKLTEGVLMRDPKFLWCAQCSFGFIYEREQLEATCPQCHQTFCVRCKRQWEEQHRGRSCEDFQNWKRMN 80
Cdd:cd20337  6 LFQKKLRDRNLMKDPNFRWCAHCSFGFIYEPEQLKMQCPQCGKVTCFKCKKPWEDQHEGISCEQFQEWKREN 77
IBR smart00647
In Between Ring fingers; the domains occurs between pairs og RING fingers
8-70 3.04e-09

In Between Ring fingers; the domains occurs between pairs og RING fingers


Pssm-ID: 214763 [Multi-domain]  Cd Length: 64  Bit Score: 48.18  E-value: 3.04e-09
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*..
2CT7_A          8 ALFHKKLTEGVLMRDPKFLWC--AQCSFGFIYERE--QLEATCPQCHQTFCVRCKRQWeeqHRGRSC 70
Cdd:smart00647  1 EKYERLLLESYVESNPDLKWCpaPDCSAAIIVTEEegCNRVTCPKCGFSFCFRCKVPW---HSPVSC 64
IBR pfam01485
IBR domain, a half RING-finger domain; The IBR (In Between Ring fingers) domain is often found ...
10-70 5.72e-06

IBR domain, a half RING-finger domain; The IBR (In Between Ring fingers) domain is often found to occur between pairs of ring fingers (pfam00097). This domain has also been called the C6HC domain and DRIL (for double RING finger linked) domain. Proteins that contain two Ring fingers and an IBR domain (these proteins are also termed RBR family proteins) are thought to exist in all eukaryotic organizms. RBR family members play roles in protein quality control and can indirectly regulate transcription. Evidence suggests that RBR proteins are often parts of cullin-containing ubiquitin ligase complexes. The ubiquitin ligase Parkin is an RBR family protein whose mutations are involved in forms of familial Parkinson's disease.


Pssm-ID: 460227  Cd Length: 65  Bit Score: 39.84  E-value: 5.72e-06
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*.
2CT7_A        10 FHKKLTEGVLMRDPKFLWC--AQCSFGFIYE---REQLEATCPQCHQTFCVRCKRQWeeqHRGRSC 70
Cdd:pfam01485  3 YEKLLLKSYVESDPNLKWCptPDCGYIIELTdgcSNTSHVTCSKCGHEFCFNCKEEW---HEGLTC 65
 
Name Accession Description Interval E-value
BRcat_RBR_HOIP cd20337
BRcat domain found in HOIL-1-interacting protein (HOIP) and similar proteins; HOIP, also ...
9-80 2.55e-40

BRcat domain found in HOIL-1-interacting protein (HOIP) and similar proteins; HOIP, also called RING finger protein 31 (RNF31) or zinc in-between-RING-finger ubiquitin-associated domain protein, together with HOIL-1 and SHARPIN, forms the E3-ligase complex (also known as linear-ubiquitin-chain assembly complex LUBAC) that regulates NF-kappaB activity and apoptosis. It also interacts with the atypical mammalian orphan receptor DAX-1, trigger DAX-1 ubiquitination and stabilization, and participate in repressing steroidogenic gene expression. HOIP contains three Npl4 zinc fingers, a central ubiquitin-associated (UBA) domain responsible for interaction with the N-terminal ubiquitin-like domain (UBL) of HOIL-1L, an RBR domain, and a C-terminal linear chain determining domain (LDD). The RBR domain 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 HOIP and similar proteins that adopt the same fold as the Rcat domain while lacking the catalytic cysteine residue and ubiquitination activity.


Pssm-ID: 438998  Cd Length: 78  Bit Score: 127.38  E-value: 2.55e-40
                       10        20        30        40        50        60        70
               ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
2CT7_A       9 LFHKKLTEGVLMRDPKFLWCAQCSFGFIYEREQLEATCPQCHQTFCVRCKRQWEEQHRGRSCEDFQNWKRMN 80
Cdd:cd20337  6 LFQKKLRDRNLMKDPNFRWCAHCSFGFIYEPEQLKMQCPQCGKVTCFKCKKPWEDQHEGISCEQFQEWKREN 77
BRcat_Rcat_RBR cd14799
BRcat (benign-catalytic) and Rcat (required-for-catalysis) domains, part of the RBR ...
24-60 8.91e-11

BRcat (benign-catalytic) and Rcat (required-for-catalysis) domains, part of the RBR (RING1-BRcat-Rcat) domain; The RBR family of RING-type E3 ligases are characterized by containing an RBR (RING1-BRcat-Rcat) domain, which was previously known as RING-BetweenRING-RING domain or TRIAD [two RING fingers and a DRIL (double RING finger linked)] domain. It is composed of an extended RING domain (RING1) followed by an in-between RING (IBR) domain and the catalytic domain, which is structurally an IBR domain but is commonly designated as RING2. Based on current understanding of the structural biology of RBR ligases, the nomenclature of RBRs has been changed to RING1-BRcat (benign-catalytic)-Rcat (required-for-catalysis), where the IBR and RING2 domains have been renamed as BRcat and Rcat domains, respectively. 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. The BRcat domain adopts the same fold as the Rcat domain while lacking the catalytic cysteine residue and ubiquitination activity. RBR family members play roles in protein quality control and can indirectly regulate transcription. Evidence suggests that RBR proteins are often parts of cullin-containing ubiquitin ligase complexes.


Pssm-ID: 438995  Cd Length: 37  Bit Score: 51.73  E-value: 8.91e-11
                       10        20        30
               ....*....|....*....|....*....|....*..
2CT7_A      24 KFLWCAQCSFGFIYEREQLEATCPQCHQTFCVRCKRQ 60
Cdd:cd14799  1 NTKWCPKCHFGFEKERGCMHATCPQCRQEFCWRCKRQ 37
IBR smart00647
In Between Ring fingers; the domains occurs between pairs og RING fingers
8-70 3.04e-09

In Between Ring fingers; the domains occurs between pairs og RING fingers


Pssm-ID: 214763 [Multi-domain]  Cd Length: 64  Bit Score: 48.18  E-value: 3.04e-09
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*..
2CT7_A          8 ALFHKKLTEGVLMRDPKFLWC--AQCSFGFIYERE--QLEATCPQCHQTFCVRCKRQWeeqHRGRSC 70
Cdd:smart00647  1 EKYERLLLESYVESNPDLKWCpaPDCSAAIIVTEEegCNRVTCPKCGFSFCFRCKVPW---HSPVSC 64
BRcat_RBR cd20335
BRcat (benign-catalytic) domain, part of the RBR (RING1-BRcat-Rcat) domain; The RBR family of ...
22-73 5.54e-06

BRcat (benign-catalytic) domain, part of the RBR (RING1-BRcat-Rcat) domain; The RBR family of RING-type E3 ligases are characterized by containing an RBR domain, which was previously known as RING-BetweenRING-RING domain or TRIAD [two RING fingers and a DRIL (double RING finger linked)] domain. It is composed of an extended RING domain (RING1) followed by an in-between RING (IBR) domain and the catalytic domain, which is structurally an IBR domain but is commonly designated as RING2. 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, where the IBR and RING2 domains have been renamed as BRcat and Rcat domains, respectively. 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. The BRcat domain adopts the same fold as the Rcat domain while lacking the catalytic cysteine residue and ubiquitination activity. RBR family members play roles in protein quality control and can indirectly regulate transcription. Evidence suggests that RBR proteins are often parts of cullin-containing ubiquitin ligase complexes. The model corresponds to the BRcat domain.


Pssm-ID: 438996  Cd Length: 53  Bit Score: 39.83  E-value: 5.54e-06
                       10        20        30        40        50
               ....*....|....*....|....*....|....*....|....*....|....*.
2CT7_A      22 DPKFLWC--AQCSFGFIYE--REQLEATCPQCHQTFCVRCKRQWeeqHRGRSCEDF 73
Cdd:cd20335  1 NPNLRWCptPDCGGVIRVEepGDGPRVTCPSCGTSFCFKCKEEW---HEGLTCEEY 53
IBR pfam01485
IBR domain, a half RING-finger domain; The IBR (In Between Ring fingers) domain is often found ...
10-70 5.72e-06

IBR domain, a half RING-finger domain; The IBR (In Between Ring fingers) domain is often found to occur between pairs of ring fingers (pfam00097). This domain has also been called the C6HC domain and DRIL (for double RING finger linked) domain. Proteins that contain two Ring fingers and an IBR domain (these proteins are also termed RBR family proteins) are thought to exist in all eukaryotic organizms. RBR family members play roles in protein quality control and can indirectly regulate transcription. Evidence suggests that RBR proteins are often parts of cullin-containing ubiquitin ligase complexes. The ubiquitin ligase Parkin is an RBR family protein whose mutations are involved in forms of familial Parkinson's disease.


Pssm-ID: 460227  Cd Length: 65  Bit Score: 39.84  E-value: 5.72e-06
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*.
2CT7_A        10 FHKKLTEGVLMRDPKFLWC--AQCSFGFIYE---REQLEATCPQCHQTFCVRCKRQWeeqHRGRSC 70
Cdd:pfam01485  3 YEKLLLKSYVESDPNLKWCptPDCGYIIELTdgcSNTSHVTCSKCGHEFCFNCKEEW---HEGLTC 65
BRcat_RBR_unk cd22582
BRcat domain found in an uncharacterized subfamily of RBR proteins; This subfamily contains ...
43-73 7.73e-06

BRcat domain found in an uncharacterized subfamily of RBR proteins; This subfamily contains uncharacterized members of the RBR family, including Arabidopsis thaliana mutator-like transposase, hypothetical protein F9K21.90, and hypothetical protein T16H5.30. The RBR family of RING-type E3 ligases are characterized by containing a RBR domain, which was previously known as RING-BetweenRING-RING domain or TRIAD [two RING fingers and a DRIL (double RING finger linked)] domain. It is composed of an extended RING domain (RING1) followed by an in-between RING (IBR) domain and the catalytic domain, which is structurally an IBR domain but is commonly designated RING2. Based on current understanding of the structural biology of RBR ligases, the nomenclature of RBR has been corrected as RING1-BRcat (benign-catalytic)-Rcat (required-for-catalysis) recently, where the IBR and RING2 domains have been renamed as BRcat and Rcat domains, respectively. 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. The BRcat domain adopts the same fold as the Rcat domain while lacking the catalytic cysteine residue and ubiquitination activity. RBR family members play roles in protein quality control and can indirectly regulate transcription. Evidence suggests that RBR proteins are often parts of cullin-containing ubiquitin ligase complexes.


Pssm-ID: 439033  Cd Length: 56  Bit Score: 39.27  E-value: 7.73e-06
                       10        20        30
               ....*....|....*....|....*....|.
2CT7_A      43 EATCPQCHQTFCVRCKRQWeeqHRGRSCEDF 73
Cdd:cd22582 29 PRECPKCRRLFCARCKVPW---HAGLSCAEY 56
BRcat_RBR_RNF144 cd20349
BRcat domain found in the RNF144 protein subfamily; The RNF144 subfamily includes RNF144A and ...
46-74 3.97e-04

BRcat domain found in the RNF144 protein subfamily; The RNF144 subfamily includes RNF144A and RNF144B, which are transmembrane (TM) domain-containing RBR-type E3 ubiquitin-protein ligases. RNF144A, also called UbcM4-interacting protein 4 (UIP4), or ubiquitin-conjugating enzyme 7-interacting protein 4, targets DNA-dependent protein kinase catalytic subunit (DNA-PKcs), and thus promotes DNA damage-induced cell apoptosis. It is transcriptionally repressed by metastasis-associated protein 1 (MTA1) and inhibits MTA1-driven cancer cell migration and invasion. RNF144B, also called PIR2, IBR domain-containing protein 2 (IBRDC2), or p53-inducible RING finger protein (p53RFP), induces p53-dependent but caspase-independent apoptosis. It interacts with E2 ubiquitin-conjugating enzymes UbcH7 and UbcH8, but not with UbcH5. It is involved in ubiquitination and degradation of p21, a p53 downstream protein promoting growth arrest and antagonizing apoptosis, suggesting a role in switching a cell from p53-mediated growth arrest to apoptosis. Moreover, RNF144B regulates the levels of Bax, a pro-apoptotic protein from the Bcl-2 family, and protects cells from unprompted Bax activation and cell death. It also regulates epithelial homeostasis by mediating degradation of p21WAF1 and p63. Both RNF144A and RNF144B contain an RBR domain followed by a potential single-TM domain. The RBR domain 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 RNF144 protein subfamily that adopts the same fold as the Rcat domain while lacking the catalytic cysteine residue and ubiquitination activity.


Pssm-ID: 439010  Cd Length: 64  Bit Score: 35.05  E-value: 3.97e-04
                       10        20
               ....*....|....*....|....*....
2CT7_A      46 CPQCHQTFCVRCKRQWeeqHRGRSCEDFQ 74
Cdd:cd20349 38 CPKCGLTFCSICKAAW---HAGQSCDENM 63
BRcat_RBR_RNF216 cd20339
BRcat domain found in RING finger protein 216 (RNF216); RNF216, also called Triad ...
28-75 1.67e-03

BRcat domain found in RING finger protein 216 (RNF216); RNF216, also called Triad domain-containing protein 3 (Triad3A), ubiquitin-conjugating enzyme 7-interacting protein 1, or zinc finger protein inhibiting NF-kappa-B (ZIN), is an RBR-type E3 ubiquitin-protein ligase that interacts with several components of the Toll-like receptor (TLR) signaling pathway and promotes their proteolytic degradation. It negatively regulates the RIG-I RNA sensing pathway through Lys48-linked, ubiquitin-mediated degradation of the tumor necrosis factor (TNF) receptor-associated factor 3 (TRAF3) adapter following RNA virus infection. It also controls ubiquitination and proteasomal degradation of receptor-interacting protein 1 (RIP1), a serine/threonine protein kinase that is critically involved in TNF receptor-1-induced NF-kappa B activation, following disruption of Hsp90 binding. Moreover, RNF216 is involved in inflammatory diseases by strongly inhibiting autophagy in macrophages. It interacts with and ubiquitinates BECN1, a key regulator in autophagy, thereby contributing to BECN1 degradation. It regulates synaptic strength by ubiquitination of Arc, resulting in its rapid proteasomal degradation. It is also a key negative regulator of sustained 2DL4/KIR2DL4 (killer cell Ig-like receptor with two Ig-like domains and a long cytoplasmic domain 4)-mediated NF-kappaB signaling from internalized 2DL4, which functions by promoting ubiquitylation and degradation of endocytosed receptor from early endosomes. Furthermore, RNF216 interacts with human immunodeficiency virus type 1 (HIV-1) virion infectivity factor (Vif) protein, which is essential for the productive infection of primary human CD4 T lymphocytes and macrophages. Mutations in RNF216 may result in Gordon Holmes syndrome, a condition defined by hypogonadotropic hypogonadism and cerebellar ataxia, as well as in autosomal recessive Huntington-like disorder. RNF216 contains an 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 RNF216 that adopts the same fold as the Rcat domain while lacking the catalytic cysteine residue and ubiquitination activity.


Pssm-ID: 439000  Cd Length: 54  Bit Score: 33.48  E-value: 1.67e-03
                       10        20        30        40        50
               ....*....|....*....|....*....|....*....|....*....|.
2CT7_A      28 CAQCSFGFIYER-EQLEATC--PQCHQTFCVRCKRQWeeqHRGRSCEDFQN 75
Cdd:cd20339  7 CPFCNYAAILDPtEVKVFRCpnPECRKESCRKCKKEW---HIPLTCEEVEK 54
BRcat_RBR_RNF19 cd20338
BRcat domain found in the RING finger protein 19 (RNF19) subfamily; This subfamily includes ...
18-74 2.89e-03

BRcat domain found in the RING finger protein 19 (RNF19) subfamily; This subfamily includes RING finger protein RNF19A and RNF19B, both of which are transmembrane (TM) domain-containing RBR-type E3 ubiquitin-protein ligases. RNF19A, also called double ring-finger protein (Dorfin), or p38, localizes to the ubiquitylated inclusions in Parkinson's disease (PD), dementia with Lewy bodies (LBs), multiple system atrophy, and amyotrophic lateral sclerosis (ALS). It interacts with Psmc3, a protein component of the 19S regulatory cap of the 26S proteasome, and further participates in the ubiquitin-proteasome system in acrosome biogenesis, spermatid head shaping, and development of the head-tail coupling apparatus and tail. It modulates the ubiquitination and degradation of Calcium-sensing receptor (CaR), which may contribute to a general mechanism for CaR quality control during biosynthesis. Moreover, RNF19A can also ubiquitylate mutant superoxide dismutase 1 (SOD1), the causative gene of familial ALS. It may associate with the endoplasmic reticulum-associated degradation (ERAD) pathway, which is related to the pathogenesis of neurodegenerative disorders, such as PD or Alzheimer's disease. It is also involved in the pathogenic process of PD and LB formation by ubiquitylation of synphilin-1. RNF19B, also called IBR domain-containing protein 3 or natural killer (NK) lytic-associated molecule (NKLAM), plays a role in controlling tumor dissemination and metastasis. It is involved in the cytolytic function of NK cells and cytotoxic T lymphocytes (CTLs). It interacts with ubiquitin conjugates UbcH7 and UbcH8, and ubiquitinates uridine kinase like-1 (URKL-1) protein, targeting it for degradation. Moreover, RNF19B is a novel component of macrophage phagosomes and plays a role in macrophage anti-bacterial activity. It functions as a novel modulator of macrophage inducible nitric oxide synthase (iNOS) expression. Both RNF19A and RNF19B contain an RBR domain followed by three TMs. The RBR domain 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 RNF19 subfamily that adopts the same fold as the Rcat domain while lacking the catalytic cysteine residue and ubiquitination activity.


Pssm-ID: 438999  Cd Length: 75  Bit Score: 33.03  E-value: 2.89e-03
                       10        20        30        40        50        60
               ....*....|....*....|....*....|....*....|....*....|....*....|...
2CT7_A      18 VLMRDPKFLWC--AQCSFGFI----YEREQLEATCPQCHQTFCVRCKRQWeeqHRGRSCEDFQ 74
Cdd:cd20338 13 VLVRDPDARWCpaPDCGYAVIatgcASCPKLTCQRPGCGTEFCYHCKQPW---HPNQTCDAAR 72
BRcat_RBR_RNF144B cd20367
BRcat domain found in RING finger protein 144B (RNF144B); RNF144B, also called PIR2, IBR ...
46-74 4.12e-03

BRcat domain found in RING finger protein 144B (RNF144B); RNF144B, also called PIR2, IBR domain-containing protein 2 (IBRDC2), or p53-inducible RING finger protein (p53RFP), is a transmembrane (TM) domain-containing RBR E3 ubiquitin-protein ligase that induces p53-dependent but caspase-independent apoptosis. It interacts with E2 ubiquitin-conjugating enzymes UbcH7 and UbcH8, but not with UbcH5. It is involved in ubiquitination and degradation of p21, a p53 downstream protein promoting growth arrest and antagonizing apoptosis, suggesting a role in switching a cell from p53-mediated growth arrest to apoptosis. Moreover, RNF144B regulates the levels of Bax, a pro-apoptotic protein from the Bcl-2 family, and protects cells from unprompted Bax activation and cell death. It also regulates epithelial homeostasis by mediating degradation of p21WAF1 and p63. RNF144B contains an RBR domain followed by a potential single-TM domain. The RBR domain 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 RNF144B that adopts the same fold as the Rcat domain while lacking the catalytic cysteine residue and ubiquitination activity.


Pssm-ID: 439028  Cd Length: 64  Bit Score: 32.45  E-value: 4.12e-03
                       10        20
               ....*....|....*....|....*....
2CT7_A      46 CPQCHQTFCVRCKRQWeeqHRGRSCEDFQ 74
Cdd:cd20367 35 CPSCHLKFCSVCKDAW---HPEHSCQESQ 60
BRcat_RBR_HOIL1 cd20345
BRcat domain found in heme-oxidized IRP2 ubiquitin ligase 1 (HOIL-1) and similar proteins; ...
27-75 5.84e-03

BRcat domain found in heme-oxidized IRP2 ubiquitin ligase 1 (HOIL-1) and similar proteins; HOIL-1 is also called RBCK1, HOIL-1L, RanBP-type and C3HC4-type zinc finger-containing protein 1, HBV-associated factor 4, Hepatitis B virus X-associated protein 4, RING finger protein 54 (RNF54), ubiquitin-conjugating enzyme 7-interacting protein 3, or UbcM4-interacting protein 28 (UIP28). Together with E3 ubiquitin-protein ligase RNF31 (also known as HOIP) and SHANK-associated RH domain interacting protein (SHARPIN), it forms the E3-ligase complex (also known as linear-ubiquitin-chain assembly complex LUBAC) that regulates NF-kappaB activity and apoptosis through conjugation of linear polyubiquitin chains to NF-kappaB essential modulator (also known as NEMO or IKBKG). HOIL-1 plays a crucial role in TNF-alpha-mediated NF-kappaB activation. It also functions as an ubiquitin-protein ligase E3 that interacts with not only PKCbeta but also PKCzeta. It can recognize heme-oxidized IRP2 (iron regulatory protein2) and is thought to affect the turnover of oxidatively damaged proteins. HOIL-1 contains an N-terminal ubiqutin-like (UBL) domain and an Npl4 zinc-finger (NZF) domain, which regulate the interaction with the LUBAC subunit RNF31 and ubiquitin, respectively. The NZF domain belongs to RanBP2-type zinc finger (zf-RanBP2) domain superfamily. In addition, HOIL-1 has an 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 HOIL1 that adopts the same fold as the Rcat domain while lacking the catalytic cysteine residue and ubiquitination activity.


Pssm-ID: 439006  Cd Length: 65  Bit Score: 32.28  E-value: 5.84e-03
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               ....*....|....*....|....*....|....*....|....*....
2CT7_A      27 WCaqcsfgfIYEREQLEATCPQCHQTFCVRCKrqweEQHRGRSCEDFQN 75
Cdd:cd20345 19 WC-------FYEDDVNEFLCPVCKHTNCLTCK----AIHEGMNCKEYQD 56
 
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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