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GENE AND PROTEIN SUMMARY

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Gene name

MAN1B1

Description

mannosidase, alpha, class 1B, member 1

Protein class

Enzymes, Mapped to UniProt SWISS-PROT, Potential transmembrane proteins, Potentially secreted proteins

Protein evidence

Medium

Entrez gene summary

This gene encodes an enzyme belonging to the glycosyl hydrolase 47 family. This enzyme functions in N-glycan biosynthesis, and is a class I alpha-1,2-mannosidase that specifically converts Man9GlcNAc to Man8GlcNAc isomer B. It is required for N-glycan trimming to Man5-6GlcNAc2 in the endoplasmic-reticulum-associated degradation pathway. Mutations in this gene cause autosomal-recessive intellectual disability. Alternative splicing results in multiple transcript variants. A related pseudogene has been identified on chromosome 11. [provided by RefSeq, Dec 2011]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

10 in total
6 with predicted TM region
1 with predicted signal peptide

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Vesicles

Additional location(s)

 

Staining summary

Staining of vesicles in all three cell lines.

Reliability (Single)

Antibodies in assay

HPA051516
 

NORMAL TISSUE & ORGAN SUMMARY

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Staining summary

Most normal tissues displayed moderate to strong cytoplasmic positivity often with a granular or distinct dot-like pattern. Additional nuclear staining was exhibited in hepatocytes, prostate and urothelial cells. Pneumocytes, bile ducts, renal glomeruli, glial cells, white pulp of spleen and smooth muscle cells were generally negative.

Tissue specificity

Staining in 55 out of 78 cell types

Reliability (Single)

Antibodies in assay

HPA051516
 

Organ

No of cell types

Antibody staining

CNS (brain) 11
Hematopoietic (blood) 8
Liver and pancreas 5
Digestive (GI-tract) 12
Respiratory (lung) 4
Cardiovascular 1
Female tissues 12
Placenta 2
Male tissues 5
Urinary tract (kidney) 3
Skin and soft tissues 13
Endocrine tissues 2

Level of antibody staining





Strong
Moderate
Weak
Negative

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 86% of the cancers

Antibodies in assay

HPA051516
 

Tissue

Cancer staining

Normal tissue
staining

Breast cancer
 
Carcinoid
 
Cervical cancer
 
 
Colorectal cancer
 
 
Endometrial cancer
 
 
Glioma
 
Head and neck cancer
 
 
Liver cancer
 
 
Lung cancer
 
 
Lymphoma
 
 
 

Tissue

Cancer staining

Normal tissue
staining

Melanoma
 
Ovarian cancer
 
Pancreatic cancer
 
Prostate cancer
 
Renal cancer
 
Skin cancer
 
Stomach cancer
 
 
Testis cancer
 
Thyroid cancer
 
Urothelial cancer
 

Level of antibody staining





Strong
Moderate
Weak
Negative

CELL LINE SUMMARY

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RNA evidence

High
 

Cell line

Cell origin

RNA abundance

IH staining

IF intensity

HPA051516

HPA051516

A-431 Skin Medium
Weak
A-549 Lung High
CACO-2 Colon Medium
HEK 293 Embryonal kidney Medium
HeLa Cervix High
Hep-G2 Liver Medium
MCF-7 Pleural effusion High
PC-3 Bone marrow High
RT-4 Urinary bladder Medium
U-2 OS Bone Medium
Weak
U-251 MG Brain High
Weak

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

HPA051516 pAb