TISIDB

Summary
Symbol	FADS2
Name	fatty acid desaturase 2
Aliases	FADSD6; D6D; TU13; DES6; SLL0262; delta-6-desaturase; LLCDL2; delta(6) desaturase; delta(6) fatty acid desat ......
Chromosomal Location	11q12.2
External Links	HGNC, NCBI, Ensembl, Uniprot, GeneCards
Content	Basic function annotation. > Subcellular Location, Domain and Function > Gene Ontology > KEGG and Reactome Pathway

> Subcellular Location, Domain and Function [ TOP ]
Subcellular Location	Endoplasmic reticulum membrane Multi-pass membrane protein
Domain	PF00173 Cytochrome b5-like Heme/Steroid binding domain PF00487 Fatty acid desaturase
Function	Component of a lipid metabolic pathway that catalyzes biosynthesis of highly unsaturated fatty acids (HUFA) from precursor essential polyunsaturated fatty acids (PUFA) linoleic acid (LA) (18:2n-6) and alpha-linolenic acid (ALA) (18:3n-3). Catalyzes the first and rate limiting step in this pathway which is the desaturation of LA (18:2n-6) and ALA (18:3n-3) into gamma-linoleic acid (GLA) (18:3n-6) and stearidonic acid (18:4n-3) respectively and other desaturation steps. Highly unsaturated fatty acids (HUFA) play pivotal roles in many biological functions. It catalizes as well the introduction of a cis double bond in palmitate to produce the mono-unsaturated fatty acid sapienate, the most abundant fatty acid in sebum.

> Gene Ontology [ TOP ]
Biological Process	GO:0001676 long-chain fatty acid metabolic process GO:0006631 fatty acid metabolic process GO:0006633 fatty acid biosynthetic process GO:0006636 unsaturated fatty acid biosynthetic process GO:0016053 organic acid biosynthetic process GO:0033559 unsaturated fatty acid metabolic process GO:0036109 alpha-linolenic acid metabolic process GO:0043651 linoleic acid metabolic process GO:0044283 small molecule biosynthetic process GO:0046394 carboxylic acid biosynthetic process GO:0072330 monocarboxylic acid biosynthetic process
Molecular Function	GO:0004768 stearoyl-CoA 9-desaturase activity GO:0016213 linoleoyl-CoA desaturase activity GO:0016215 acyl-CoA desaturase activity GO:0016705 oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen GO:0016717 oxidoreductase activity, acting on paired donors, with oxidation of a pair of donors resulting in the reduction of molecular oxygen to two molecules of water
Cellular Component	-

> KEGG and Reactome Pathway [ TOP ]
KEGG	hsa03320 PPAR signaling pathway hsa00592 alpha-Linolenic acid metabolism hsa01040 Biosynthesis of unsaturated fatty acids hsa01212 Fatty acid metabolism
Reactome	R-HSA-2046105: Linoleic acid (LA) metabolism R-HSA-1430728: Metabolism R-HSA-556833: Metabolism of lipids and lipoproteins R-HSA-2046104: alpha-linolenic (omega3) and linoleic (omega6) acid metabolism R-HSA-2046106: alpha-linolenic acid (ALA) metabolism

Summary
Symbol	FADS2
Name	fatty acid desaturase 2
Aliases	FADSD6; D6D; TU13; DES6; SLL0262; delta-6-desaturase; LLCDL2; delta(6) desaturase; delta(6) fatty acid desat ......
Chromosomal Location	11q12.2
External Links	HGNC, NCBI, Ensembl, Uniprot, GeneCards
Content	Literatures that report relations between FADS2 and anti-tumor immunity. The specific mechanism were also collected if the literature reports that a gene specifically promotes or inhibits the infiltration or function of T/NK cells.

> Text Mining [ TOP ]
There is no record.

Summary
Symbol	FADS2
Name	fatty acid desaturase 2
Aliases	FADSD6; D6D; TU13; DES6; SLL0262; delta-6-desaturase; LLCDL2; delta(6) desaturase; delta(6) fatty acid desat ......
Chromosomal Location	11q12.2
External Links	HGNC, NCBI, Ensembl, Uniprot, GeneCards
Content	High-throughput screening data (e.g. CRISPR-Cas9, shRNA and RNAi) for T cell-mediated killing. Genetic screen techniques can identify mechanisms of tumor cell resistance (e.g., PTPN2) and sensitivity (e.g., APLNR) to killing by cytotoxic T cells, the central effectors of anti-tumor immunity. After comprehensively searching, eight groups of screening data sets were collected in the current database. In this tab, users can check whether their selected genes cause resistance or increase sensitivity to T cell-mediated killing in various data sets.

> High-throughput Screening

[ TOP ]

Statistical results of FADS2 in screening data sets for detecting immune reponses.

PMID	Screening System	Cancer Type	Cell Line	Data Set	Statistical Results	Relation to immunity
29301958	CRISPR-Cas9	melanoma	B16F10	Pmel-1 T cell	NA/NS	NA/NS
29301958	CRISPR-Cas9	melanoma	B16F10	OT-1 T cell	NA/NS	NA/NS
28783722	CRISPR-Cas9	melanoma	Mel624	2CT-CRISPR	NA/NS	NA/NS
28723893	CRISPR-Cas9	melanoma	B16	GVAX+Anti-PD1	NA/NS	NA/NS
28723893	CRISPR-Cas9	melanoma	B16	GVAX	NA/NS	NA/NS
25691366	RNAi	Breast cancer	MCF7	Luc-CTL assay	NA/NS	NA/NS
24476824	shRNA	melanoma	B16	Primary screen	NA/NS	NA/NS
24476824	shRNA	melanoma	B16	Secondary screen	NA/NS	NA/NS

Summary
Symbol	FADS2
Name	fatty acid desaturase 2
Aliases	FADSD6; D6D; TU13; DES6; SLL0262; delta-6-desaturase; LLCDL2; delta(6) desaturase; delta(6) fatty acid desat ......
Chromosomal Location	11q12.2
External Links	HGNC, NCBI, Ensembl, Uniprot, GeneCards
Content	Transcriptomic and genomic profiling of pre-treated tumor biopsies from responders and non-responders to immunotherapy. These data were used to identify signatures and mechanisms of response to checkpoint blockade (e.g., anti-PDL1 and anti-PD1). One example is that mutations in the gene PBRM1 benefit clinical survival of patients with clear cell renal cell carcinoma. After comprehensively searching, we collected 5 and 6 of transcriptomic and genomic data sets, respectively. In this tab, users can check whether their selected genes have significant difference of expression or mutation between responders and non-responders in various data sets. > Expression difference between responders and non-responders > Mutation difference between responders and non-responders

> Expression difference between responders and non-responders

[ TOP ]

Points in the above scatter plot represent the expression difference of FADS2 in various data sets.

No	PMID	Cancer type	Group	Drug	# Res	# NRes	Log2 (Fold Change)	P value
1	26997480	Melanoma	all	Anti-PD-1 (pembrolizumab and nivolumab)	14	12	-0.525	0.298
2	26997480	Melanoma	MAPKi	Anti-PD-1 (pembrolizumab and nivolumab)	6	5	-0.718	0.726
3	26997480	Melanoma	non-MAPKi	Anti-PD-1 (pembrolizumab and nivolumab)	8	7	-0.377	0.796
4	28552987	Urothelial cancer	all	Anti-PD-L1 (atezolizumab)	9	16	-0.991	0.029
5	28552987	Urothelial cancer	smoking	Anti-PD-L1 (atezolizumab)	5	9	-1.218	0.513
6	28552987	Urothelial cancer	non-smoking	Anti-PD-L1 (atezolizumab)	4	7	-0.698	0.781
7	29033130	Melanoma	all	Anti-PD-1 (nivolumab)	26	23	-0.097	0.842
8	29033130	Melanoma	NIV3-PROG	Anti-PD-1 (nivolumab)	15	11	-0.006	0.997
9	29033130	Melanoma	NIV3-NAIVE	Anti-PD-1 (nivolumab)	11	12	-0.126	0.935
10	29301960	Clear cell renal cell carcinoma (ccRCC)	all	Anti-PD-1 (nivolumab)	4	8	0.677	0.727
11	29301960	Clear cell renal cell carcinoma (ccRCC)	VEGFRi	Anti-PD-1 (nivolumab)	2	0	0	1
12	29301960	Clear cell renal cell carcinoma (ccRCC)	non-VEGFRi	Anti-PD-1 (nivolumab)	2	8	1.115	0.7
13	29443960	Urothelial cancer	all	Anti-PD-L1 (atezolizumab)	68	230	0.12	0.498

> Mutation difference between responders and non-responders

[ TOP ]

Points in the above scatter plot represent the mutation difference of FADS2 in various data sets.

No	PMID	Cancer type	Group	Drug	# Res	# NRes	% Mut/Res	% Mut/NRes	% Diff (R vs NR)	Pval
1	25765070	Non-small cell lung cancer (NSCLC)	all	Anti-PD-1 (pembrolizumab)	14	17	0	0	0	1
2	25765070	Non-small cell lung cancer (NSCLC)	smoking	Anti-PD-1 (pembrolizumab)	10	3	0	0	0	1
3	25765070	Non-small cell lung cancer (NSCLC)	non-smoking	Anti-PD-1 (pembrolizumab)	4	14	0	0	0	1
4	26359337	Melanoma	all	Anti-CTLA-4 (ipilimumab)	27	73	0	1.4	-1.4	1
5	26359337	Melanoma	BRAFi	Anti-CTLA-4 (ipilimumab)	0	14	0	0	0	1
6	26359337	Melanoma	non-BRAFi	Anti-CTLA-4 (ipilimumab)	27	59	0	1.7	-1.7	1
7	26997480	Melanoma	all	Anti-PD-1 (pembrolizumab and nivolumab)	21	17	4.8	0	4.8	1
8	26997480	Melanoma	MAPKi	Anti-PD-1 (pembrolizumab and nivolumab)	8	6	12.5	0	12.5	1
9	26997480	Melanoma	non-MAPKi	Anti-PD-1 (pembrolizumab and nivolumab)	13	11	0	0	0	1
10	28552987	Urothelial cancer	all	Anti-PD-L1 (atezolizumab)	9	16	11.1	6.2	4.9	1
11	28552987	Urothelial cancer	smoking	Anti-PD-L1 (atezolizumab)	5	9	20	11.1	8.9	1
12	28552987	Urothelial cancer	non-smoking	Anti-PD-L1 (atezolizumab)	4	7	0	0	0	1
13	29033130	Melanoma	all	Anti-PD-1 (nivolumab)	38	27	0	0	0	1
14	29033130	Melanoma	NIV3-PROG	Anti-PD-1 (nivolumab)	22	13	0	0	0	1
15	29033130	Melanoma	NIV3-NAIVE	Anti-PD-1 (nivolumab)	16	14	0	0	0	1
16	29301960	Clear cell renal cell carcinoma (ccRCC)	all	Anti-PD-1 (nivolumab)	11	13	0	0	0	1
17	29301960	Clear cell renal cell carcinoma (ccRCC)	VEGFRi	Anti-PD-1 (nivolumab)	6	1	0	0	0	1
18	29301960	Clear cell renal cell carcinoma (ccRCC)	non-VEGFRi	Anti-PD-1 (nivolumab)	5	12	0	0	0	1

Summary
Symbol	FADS2
Name	fatty acid desaturase 2
Aliases	FADSD6; D6D; TU13; DES6; SLL0262; delta-6-desaturase; LLCDL2; delta(6) desaturase; delta(6) fatty acid desat ......
Chromosomal Location	11q12.2
External Links	HGNC, NCBI, Ensembl, Uniprot, GeneCards
Content	Relations between abundance of tumor-infiltrating lymphocytes (TILs) and expression, copy number, methylation, or mutation of FADS2. The immune-related signatures of 28 TIL types from Charoentong's study, which can be viewed in the download page. For each cancer type, the relative abundance of TILs were inferred by using gene set variation analysis (GSVA) based on gene expression profile. In this tab, users can examine which kinds of TILs might be regulated by the current gene.

> Lymphocyte [ TOP ]

Summary
Symbol	FADS2
Name	fatty acid desaturase 2
Aliases	FADSD6; D6D; TU13; DES6; SLL0262; delta-6-desaturase; LLCDL2; delta(6) desaturase; delta(6) fatty acid desat ......
Chromosomal Location	11q12.2
External Links	HGNC, NCBI, Ensembl, Uniprot, GeneCards
Content	Relations between three kinds of immunomodulators and expression, copy number, methylation, or mutation of FADS2. These immunomo-dulators were collected from Charoentong's study. In this tab, users can examine which immunomodulators might be regulated by FADS2. > Immunoinhibitor > Immunostimulator > MHC molecule

> Immunoinhibitor [ TOP ]

> Immunostimulator [ TOP ]

> MHC molecule [ TOP ]

Summary
Symbol	FADS2
Name	fatty acid desaturase 2
Aliases	FADSD6; D6D; TU13; DES6; SLL0262; delta-6-desaturase; LLCDL2; delta(6) desaturase; delta(6) fatty acid desat ......
Chromosomal Location	11q12.2
External Links	HGNC, NCBI, Ensembl, Uniprot, GeneCards
Content	Relations between chemokines (or receptors) and expression, copy number, methylation, or mutation of FADS2. In this tab, users can examine which chemokines (or receptors) might be regulated by the current gene. > Chemokine > Receptor

> Chemokine [ TOP ]

> Receptor [ TOP ]

Summary
Symbol	FADS2
Name	fatty acid desaturase 2
Aliases	FADSD6; D6D; TU13; DES6; SLL0262; delta-6-desaturase; LLCDL2; delta(6) desaturase; delta(6) fatty acid desat ......
Chromosomal Location	11q12.2
External Links	HGNC, NCBI, Ensembl, Uniprot, GeneCards
Content	Distribution of FADS2 expression across immune and molecular subtypes. > Immune subtype > Molecular subtype

> Immune subtype [ TOP ]

> Molecular subtype [ TOP ]

Summary
Symbol	FADS2
Name	fatty acid desaturase 2
Aliases	FADSD6; D6D; TU13; DES6; SLL0262; delta-6-desaturase; LLCDL2; delta(6) desaturase; delta(6) fatty acid desat ......
Chromosomal Location	11q12.2
External Links	HGNC, NCBI, Ensembl, Uniprot, GeneCards
Content	Associations between FADS2 and clinical features. > Overall survival analysis > Cancer stage > Tumor grade

> Overall survival [ TOP ]

> Stage [ TOP ]

> Grade [ TOP ]

Summary
Symbol	FADS2
Name	fatty acid desaturase 2
Aliases	FADSD6; D6D; TU13; DES6; SLL0262; delta-6-desaturase; LLCDL2; delta(6) desaturase; delta(6) fatty acid desat ......
Chromosomal Location	11q12.2
External Links	HGNC, NCBI, Ensembl, Uniprot, GeneCards
Content	Drugs targeting FADS2 collected from DrugBank database.

> Drugs from DrugBank database

[ TOP ]

Details on drugs targeting FADS2.

ID	Name	Drug Type	Targets	#Targets
DB00132	Alpha-Linolenic Acid	Small Molecule	ELOVL4, FADS1, FADS2, NR1H4, PPARA, PPARD, PPARG, RXRA, SLC8A1, TR ......	10

Browse FADS2