TISIDB

Summary
Symbol	MASP1
Name	mannan-binding lectin serine peptidase 1 (C4/C2 activating component of Ra-reactive factor)
Aliases	MASP; CRARF; PRSS5; mannan-binding lectin serine protease 1 (C4/C2 activating component of Ra-reactive facto ......
Chromosomal Location	3q27-q28
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	Secreted
Domain	PF00431 CUB domain PF00084 Sushi repeat (SCR repeat) PF00089 Trypsin
Function	Functions in the lectin pathway of complement, which performs a key role in innate immunity by recognizing pathogens through patterns of sugar moieties and neutralizing them. The lectin pathway is triggered upon binding of mannan-binding lectin (MBL) and ficolins to sugar moieties which leads to activation of the associated proteases MASP1 and MASP2. Functions as an endopeptidase and may activate MASP2 or C2 or directly activate C3 the key component of complement reaction. Isoform 2 may have an inhibitory effect on the activation of the lectin pathway of complement or may cleave IGFBP5.

> Gene Ontology [ TOP ]
Biological Process	GO:0001867 complement activation, lectin pathway GO:0006898 receptor-mediated endocytosis GO:0006956 complement activation GO:0006959 humoral immune response GO:0072376 protein activation cascade
Molecular Function	GO:0004175 endopeptidase activity GO:0004252 serine-type endopeptidase activity GO:0008236 serine-type peptidase activity GO:0017171 serine hydrolase activity GO:0048306 calcium-dependent protein binding
Cellular Component	-

> KEGG and Reactome Pathway [ TOP ]
KEGG	hsa04610 Complement and coagulation cascades
Reactome	R-HSA-2173782: Binding and Uptake of Ligands by Scavenger Receptors R-HSA-166658: Complement cascade R-HSA-166786: Creation of C4 and C2 activators R-HSA-2855086: Ficolins bind to repetitive carbohydrate structures on the target cell surface R-HSA-168256: Immune System R-HSA-166663: Initial triggering of complement R-HSA-168249: Innate Immune System R-HSA-166662: Lectin pathway of complement activation R-HSA-3000480: Scavenging by Class A Receptors R-HSA-5653656: Vesicle-mediated transport

> KEGG and Reactome Pathway

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KEGG

hsa04610 Complement and coagulation cascades

Reactome

R-HSA-2173782: Binding and Uptake of Ligands by Scavenger Receptors
R-HSA-166658: Complement cascade
R-HSA-166786: Creation of C4 and C2 activators
R-HSA-2855086: Ficolins bind to repetitive carbohydrate structures on the target cell surface
R-HSA-168256: Immune System
R-HSA-166663: Initial triggering of complement
R-HSA-168249: Innate Immune System
R-HSA-166662: Lectin pathway of complement activation
R-HSA-3000480: Scavenging by Class A Receptors
R-HSA-5653656: Vesicle-mediated transport

Summary
Symbol	MASP1
Name	mannan-binding lectin serine peptidase 1 (C4/C2 activating component of Ra-reactive factor)
Aliases	MASP; CRARF; PRSS5; mannan-binding lectin serine protease 1 (C4/C2 activating component of Ra-reactive facto ......
Chromosomal Location	3q27-q28
External Links	HGNC, NCBI, Ensembl, Uniprot, GeneCards
Content	Literatures that report relations between MASP1 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	MASP1
Name	mannan-binding lectin serine peptidase 1 (C4/C2 activating component of Ra-reactive factor)
Aliases	MASP; CRARF; PRSS5; mannan-binding lectin serine protease 1 (C4/C2 activating component of Ra-reactive facto ......
Chromosomal Location	3q27-q28
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

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Statistical results of MASP1 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	MASP1
Name	mannan-binding lectin serine peptidase 1 (C4/C2 activating component of Ra-reactive factor)
Aliases	MASP; CRARF; PRSS5; mannan-binding lectin serine protease 1 (C4/C2 activating component of Ra-reactive facto ......
Chromosomal Location	3q27-q28
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

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Points in the above scatter plot represent the expression difference of MASP1 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	0.403	0.319
2	26997480	Melanoma	MAPKi	Anti-PD-1 (pembrolizumab and nivolumab)	6	5	-0.179	0.788
3	26997480	Melanoma	non-MAPKi	Anti-PD-1 (pembrolizumab and nivolumab)	8	7	0.839	0.156
4	28552987	Urothelial cancer	all	Anti-PD-L1 (atezolizumab)	9	16	-0.663	0.196
5	28552987	Urothelial cancer	smoking	Anti-PD-L1 (atezolizumab)	5	9	-1.113	0.532
6	28552987	Urothelial cancer	non-smoking	Anti-PD-L1 (atezolizumab)	4	7	-0.107	0.956
7	29033130	Melanoma	all	Anti-PD-1 (nivolumab)	26	23	0.646	0.455
8	29033130	Melanoma	NIV3-PROG	Anti-PD-1 (nivolumab)	15	11	1.447	0.238
9	29033130	Melanoma	NIV3-NAIVE	Anti-PD-1 (nivolumab)	11	12	-0.283	0.828
10	29301960	Clear cell renal cell carcinoma (ccRCC)	all	Anti-PD-1 (nivolumab)	4	8	-0.289	0.845
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	2.052	0.236
13	29443960	Urothelial cancer	all	Anti-PD-L1 (atezolizumab)	68	230	-0.709	0.0116

> Mutation difference between responders and non-responders

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Points in the above scatter plot represent the mutation difference of MASP1 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	5.9	-5.9	1
2	25765070	Non-small cell lung cancer (NSCLC)	smoking	Anti-PD-1 (pembrolizumab)	10	3	0	33.3	-33.3	0.231
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	11.1	5.5	5.6	0.384
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	11.1	6.8	4.3	0.673
7	26997480	Melanoma	all	Anti-PD-1 (pembrolizumab and nivolumab)	21	17	9.5	0	9.5	0.492
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	7.7	0	7.7	1
10	28552987	Urothelial cancer	all	Anti-PD-L1 (atezolizumab)	9	16	0	0	0	1
11	28552987	Urothelial cancer	smoking	Anti-PD-L1 (atezolizumab)	5	9	0	0	0	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	5.3	0	5.3	0.507
14	29033130	Melanoma	NIV3-PROG	Anti-PD-1 (nivolumab)	22	13	9.1	0	9.1	0.519
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	MASP1
Name	mannan-binding lectin serine peptidase 1 (C4/C2 activating component of Ra-reactive factor)
Aliases	MASP; CRARF; PRSS5; mannan-binding lectin serine protease 1 (C4/C2 activating component of Ra-reactive facto ......
Chromosomal Location	3q27-q28
External Links	HGNC, NCBI, Ensembl, Uniprot, GeneCards
Content	Relations between abundance of tumor-infiltrating lymphocytes (TILs) and expression, copy number, methylation, or mutation of MASP1. 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	MASP1
Name	mannan-binding lectin serine peptidase 1 (C4/C2 activating component of Ra-reactive factor)
Aliases	MASP; CRARF; PRSS5; mannan-binding lectin serine protease 1 (C4/C2 activating component of Ra-reactive facto ......
Chromosomal Location	3q27-q28
External Links	HGNC, NCBI, Ensembl, Uniprot, GeneCards
Content	Relations between three kinds of immunomodulators and expression, copy number, methylation, or mutation of MASP1. These immunomo-dulators were collected from Charoentong's study. In this tab, users can examine which immunomodulators might be regulated by MASP1. > Immunoinhibitor > Immunostimulator > MHC molecule

> Immunoinhibitor [ TOP ]

> Immunostimulator [ TOP ]

> MHC molecule [ TOP ]

Summary
Symbol	MASP1
Name	mannan-binding lectin serine peptidase 1 (C4/C2 activating component of Ra-reactive factor)
Aliases	MASP; CRARF; PRSS5; mannan-binding lectin serine protease 1 (C4/C2 activating component of Ra-reactive facto ......
Chromosomal Location	3q27-q28
External Links	HGNC, NCBI, Ensembl, Uniprot, GeneCards
Content	Relations between chemokines (or receptors) and expression, copy number, methylation, or mutation of MASP1. 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	MASP1
Name	mannan-binding lectin serine peptidase 1 (C4/C2 activating component of Ra-reactive factor)
Aliases	MASP; CRARF; PRSS5; mannan-binding lectin serine protease 1 (C4/C2 activating component of Ra-reactive facto ......
Chromosomal Location	3q27-q28
External Links	HGNC, NCBI, Ensembl, Uniprot, GeneCards
Content	Distribution of MASP1 expression across immune and molecular subtypes. > Immune subtype > Molecular subtype

> Immune subtype [ TOP ]

> Molecular subtype [ TOP ]

Summary
Symbol	MASP1
Name	mannan-binding lectin serine peptidase 1 (C4/C2 activating component of Ra-reactive factor)
Aliases	MASP; CRARF; PRSS5; mannan-binding lectin serine protease 1 (C4/C2 activating component of Ra-reactive facto ......
Chromosomal Location	3q27-q28
External Links	HGNC, NCBI, Ensembl, Uniprot, GeneCards
Content	Associations between MASP1 and clinical features. > Overall survival analysis > Cancer stage > Tumor grade

> Overall survival [ TOP ]

> Stage [ TOP ]

> Grade [ TOP ]

Summary
Symbol	MASP1
Name	mannan-binding lectin serine peptidase 1 (C4/C2 activating component of Ra-reactive factor)
Aliases	MASP; CRARF; PRSS5; mannan-binding lectin serine protease 1 (C4/C2 activating component of Ra-reactive facto ......
Chromosomal Location	3q27-q28
External Links	HGNC, NCBI, Ensembl, Uniprot, GeneCards
Content	Drugs targeting MASP1 collected from DrugBank database.

> Drugs from DrugBank database [ TOP ]
There is no record.

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