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  • KD/KO Validated

TMEM41B Polyclonal antibody

TMEM41B Polyclonal Antibody for IHC, WB, ELISA

Host / Isotype

Rabbit / IgG


Human, Mouse and More (3)





Cat no : 29270-1-AP


KIAA0033, TMEM41B, transmembrane protein 41B

Tested Applications

Positive WB detected inA549 cells, HeLa cells, mouse lung tissue, mouse testis tissue
Positive IHC detected inmouse lung tissue, mouse testis tissue, human lung tissue
Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0

Recommended dilution

Western Blot (WB)WB : 1:500-1:1000
Immunohistochemistry (IHC)IHC : 1:50-1:500
Sample-dependent, check data in validation data gallery

Product Information

29270-1-AP targets TMEM41B in WB, IHC, IF, ELISA applications and shows reactivity with Human, Mouse samples.

Tested Reactivity Human, Mouse
Cited Reactivityhuman, mouse, pig
Host / Isotype Rabbit / IgG
Class Polyclonal
Type Antibody
Immunogen TMEM41B fusion protein Ag30810
Full Name transmembrane protein 41B
Observed molecular weight22-28 kDa
GenBank accession numberBC035034
Gene symbol TMEM41B
Gene ID (NCBI) 440026
Conjugate Unconjugated
Form Liquid
Purification Method Antigen affinity purification
Storage Buffer PBS with 0.02% sodium azide and 50% glycerol pH 7.3.
Storage ConditionsStore at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20oC storage. 20ul sizes contain 0.1% BSA.

Background Information

Transmembrane protein 41B (TMEM41B), also known as Stasimon, is a major target of survival motor neuron (SMN)-dependent U12 splicing and has been identified as a protein required for motor circuit function (PMID: 23063131). TMEM41B localizes to the endoplasmic reticulum. It is involved in autophagosome biogenesis and lipid mobilization (PMID: 30126924). TMEM41B has been shown to be essential for mouse embryonic development (PMID: 30352685). Additionally, genome-scale CRISPR knockout screens reveal that TMEM41B is required for infection of flavivirus and coronavirus, including SARS-CoV-2 (PMID: 33052348; 33052332). Alternative splicing results in three transcript variants encoding distinct isoforms.


Product Specific Protocols
WB protocol for TMEM41B antibody 29270-1-APDownload protocol
IHC protocol for TMEM41B antibody 29270-1-APDownload protocol
Standard Protocols
Click here to view our Standard Protocols



Cell Metab

TMEM41B acts as an ER scramblase required for lipoprotein biogenesis and lipid homeostasis.

Authors - Dong Huang
  • KO Validated


Comparative Proteomic Analysis of tPVAT during Ang II Infusion.

Authors - Xiuying Liang

STAR Protoc

In vitro and in vivo assay of the ER lipid scramblase TMEM41B.

Authors - Lingzhi Wu
  • KO Validated

J Virol

TMEM41B Is an Interferon-Stimulated Gene That Promotes Pseudorabies Virus Replication

Authors - Xiu-Qing Li
  • KD Validated


PLSCR1 is a cell-autonomous defence factor against SARS-CoV-2 infection

Authors - Dijin Xu