- Source: Tripartite motif family
The tripartite motif family (TRIM) is a protein family.
Function
Many TRIM proteins are induced by interferons, which are important component of resistance to pathogens and several TRIM proteins are known to be required for the restriction of infection by lentiviruses. TRIM proteins are involved in pathogen-recognition and by regulation of transcriptional pathways in host defence.
Structure
The tripartite motif is always present at the N-terminus of the TRIM proteins. The TRIM motif includes the following three domains:
(1) a RING finger domain
(2) one or two B-box zinc finger domains
when only one B-box is present, it is always a type-2 B-box
when two B-boxes are present the type-1 B-Box always precedes the type-2 B-Box
(3) coiled coil region
The C-terminus of TRIM proteins contain either:
Group 1 proteins: a C-terminal domain selected from the following list:
NHL and IGFLMN domains, either in association or alone
PHD domain associated with a bromodomain
MATH domain (in e.g., TRIM37)
ARF domain (in e.g., TRIM23)
EXOIII domain (in e.g., TRIM19) or
Group 2 proteins: a SPRY C-terminal domain
e.g. TRIM21
Family members
The TRIM family is split into two groups that differ in domain structure and genomic organization:
Group 1 members possess a variety of C-terminal domains, and are represented in both vertebrate and invertebrates
Group 2 is absent in invertebrates, possess a C-terminal SPRY domain
Members of the family include:
Group 1
PHD-BROMO domain containing: TRIM24 (TIF1α), TRIM28 (TIF1β), TRIM33 (TIF1γ)– act as corepressors
1-10: TRIM1, TRIM2, TRIM3, TRIM8, TRIM9
11-20: TRIM12, TRIM13, TRIM14, TRIM16, TRIM18, TRIM19
21-30: TRIM23, TRIM25, TRIM29, TRIM30
31-40: TRIM32, TRIM36, TRIM37
41-50: TRIM42, TRIM44, TRIM45, TRIM46, TRIM47
51-60: TRIM51, TRIM53, TRIM54, TRIM55, TRIM56, TRIM57, TRIM59
61-70: TRIM62, TRIM63, TRIM65, TRIM66, TRIM67, TRIM69, TRIM70
71-75: TRIM71
Group 2
1-10: TRIM4, TRIM5, TRIM6, TRIM7, TRIM10
11-20: TRIM11, TRIM12, TRIM15, TRIM17, TRIM20
21-30: TRIM21, TRIM22, TRIM26, TRIM27, TRIM30
31-40: TRIM31, TRIM34, TRIM35, TRIM38, TRIM39, TRIM40
41-50: TRIM41, TRIM43, TRIM48, TRIM49, TRIM50
51-60: TRIM51, TRIM52, TRIM53, TRIM57, TRIM58, TRIM60
61-70: TRIM61, TRIM64, TRIM68, TRIM69, TRIM70
71-75: TRIM72, TRIM73, TRIM74, TRIM75
References
Kata Kunci Pencarian:
- Iran
- Keterlibatan Amerika Serikat dalam pergantian rezim
- Proteasom
- Tripartite motif family
- Tripartite motif containing 65
- Trim
- MID1
- TRIM33
- TRIM28
- TRIM21
- TRIM5alpha
- Tripartite motif containing 34
- Intracellular antibody-mediated degradation
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