Q9NZC2 (TREM2_HUMAN) Homo sapiens (Human)

Triggering receptor expressed on myeloid cells 2 UniProtKBInterProSTRINGInteractive Modelling

230 aa; Sequence (Fasta) ; (Isoform 2; Isoform 3; ) Identical sequences: Homo sapiens: Q5TCX1

Sequence Features

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 27V -> M (found in patients with late onset Alzheimer disease; unknown pathological significance; no effect on cell membrane localization; dbSNP:rs768745050) VAR_081812 dbSNP
 28A -> V (found in patients with late onset Alzheimer disease; unknown pathological significance; increases cell membrane localization; dbSNP:rs2234252) VAR_081813 dbSNP
 31S -> F (found in patients with late onset Alzheimer disease; unknown pathological significance; decreases cell membrane localization; dbSNP:rs746216516) VAR_081814 dbSNP
 38Y -> C (results in defective protein maturation and trafficking; loss of proteolytic cleavage by ADAM10 and ectodomain shedding; increases protein aggregation; decreases cell membrane localization; decreased phagocytosis; loss of LDL, CLU and APOE binding; greatly decreases LDL and CLU uptake into cells; dbSNP:rs797044603) VAR_081815 dbSNP
 47R -> C (found in patients with late onset Alzheimer disease; unknown pathological significance; decreases cell membrane localization; dbSNP:rs753325601) VAR_081816 dbSNP
 47R -> H (found in patients with late onset Alzheimer disease; unknown pathological significance; no effect on cell membrane localization; no effect on autophagy in microglia; no effect on phagocystosis, including amyloid plaque clearance by microglia; reduces ectodomain shedding caused by proteolytic cleavage by ADAM10, while also reducing the oligomerization of the extracellular domain after shedding; decreases binding to and uptake of LDL and CLU into cells; decreases binding to APOE, phospholipids and oligomeric APP cleavage product beta-amyloid peptide 42; dbSNP:rs75932628) VAR_081817 dbSNP
 62R -> H (does not affect protein structure; no effect on cell membrane localization; increases autophagy in microglia; decreases LDL, CLU and APOE binding; decreases LDL uptake into cells; no effect on CLU uptake into cells; decreases the uptake of APP-LDL complex in macrophages; decreases binding to oligomeric APP cleavage product beta- amyloid peptide 42; dbSNP:rs143332484) VAR_081818 dbSNP
 66T -> M (results in defective protein maturation and trafficking; loss of proteolytic cleavage by ADAM10 and ectodomain shedding; increases protein aggregation; decreases cell membrane localization; decreases phagocytosis; loss of LDL, CLU and APOE binding; greatly decreases LDL and CLU uptake into cells; dbSNP:rs201258663) VAR_081819 dbSNP
 87D -> N (decreases LDL, CLU and APOE binding; decreases LDL and CLU uptake into cells; no effect on cell membrane localization; dbSNP:rs142232675) VAR_081820 dbSNP
 96T -> K (does not change protein structure; changes protein stability; increases binding to THP-1 cells; dbSNP:rs2234253) VAR_061329 dbSNP
 96T -> R (in dbSNP:rs2234253) VAR_061330 dbSNP
 126V -> G (in PLOSL2; results in defective protein maturation; increases protein aggregation; decreases cell membrane localization; dbSNP:rs121908402) VAR_081680 dbSNP
 130A -> S (likely benign variant; no effect on protein expression and maturation) VAR_081821
 134D -> G (in PLOSL2; unknown pathological significance; decreased protein level; dbSNP:rs28939079) VAR_019334 dbSNP
 136R -> Q (found in patients with Alzheimer disease; unknown pathological significance; slightly decreases cell membrane localization; dbSNP:rs149622783) VAR_081822 dbSNP
 136R -> W (found in patients with Alzheimer disease; unknown pathological significance; decreases cell membrane localization; dbSNP:rs772641807) VAR_081823 dbSNP
 151E -> K (found in patients with late onset Alzheimer disease; unknown pathological significance; decreases cell membrane localization; dbSNP:rs79011726) VAR_081824 dbSNP
 157H -> Y (may be associated with an increased risk for late-onset Alzheimer disease; accelerates ectodomain shedding but does not alter the cleavage site; decreases cell membrane localization; decreases phagocytosis; dbSNP:rs2234255) VAR_033625 dbSNP
 162S -> R (no effect on protein expression and maturation; dbSNP:rs371702633) VAR_081825 dbSNP
 186K -> N (in PLOSL2; unknown pathological significance; increased localization at the cell membrane; dbSNP:rs28937876) VAR_019335 dbSNP
 192A -> T (in dbSNP:rs150277350) VAR_077696 dbSNP
 211L -> P (in dbSNP:rs2234256) VAR_033626 dbSNP
 223T -> I (affects protein maturation; dbSNP:rs138355759) VAR_081826 dbSNP
 175-195Helical
 157-158Cleavage of ectodomain
 36-110
 51-60
 14-230Missing (in PLOSL2; results in decreased osteoclast differentiation; no TREM2 transcripts can be detected in patient cells homozygous for the variant) VAR_081676
 33-230Missing (in PLOSL2; no protein detected by Wester blot) VAR_081677
 44-230Missing (in PLOSL2) VAR_081678
 78-230Missing (in PLOSL2) VAR_081679
 24-128Immunoglobulin V-set domain
IPR013106PF07686

Sequence Alignments

Experimental structures

DescriptionOligo-stateLigandsStructureRange
TREM2 extracellular domain (19-174) in complex with single-chain variable fragment (scFv-4) Heteromer
NAG;6y6c20-137
Assess
TREM2 extracellular domain (19-131) in complex with single-chain variable 4 (scFv-4) Heteromer
GLY;NAG;6ymq19-131
Assess
TREM2 extracellular domain (19-131) in complex with single-chain variable fragment (scFv-2) Heteromer
NAG;6yye20-131
Assess
WT Ig-like V Domain with Phosphatidylserinehomo-6-mer NAG;IOD; 11×SO4; 10×EDO;PSF;6b8o20-130
Assess
Crystal Structure of Wild-Type Ig-like Domainhomo-6-mer NAG;IOD;SO4;5ud720-130
Assess
Crystal structure of MBP-TREM2 Ig domain fusion with fragment, 2-((4-bromophenyl)amino)ethan-1-olmonomer GLC;V5S;DMS;6xds18-135
Assess
Crystal Structure of Mutant Ig-like Domainmonomer 5ud819-130
Assess
Triggering receptor expressed on myeloid cells 2monomer NAG;5eli20-131
Assess
Structure of TREM2 transmembrane helix in DPC micellesmonomer 6z0g161-206
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Structure of TREM2 transmembrane helix K186A variant in DPC micellesmonomer 6z0h161-206
Assess
Structure of the TREM2 transmembrane helix in complex with DAP12 in DPC micellesmonomer 6z0i161-206
Assess

Homology models built on isoform sequence

IsoformOligo-stateLigandsQMEANTemplateRangeSeq id (%)
Isoform 2homo-6-merPSF;-1.276b8o.1.A20-130
98.61
Assess
Isoform 3homo-6-merPSF;-1.236b8o.1.A20-130
94.70
Assess