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GENE AND PROTEIN SUMMARY

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Gene name

CD74

Description

CD74 molecule, major histocompatibility complex, class II invariant chain

Protein class

Candidate cancer biomarkers, CD markers, Mapped to UniProt SWISS-PROT, Potential transmembrane proteins

Protein evidence

High

Entrez gene summary

The protein encoded by this gene associates with class II major histocompatibility complex (MHC) and is an important chaperone that regulates antigen presentation for immune response. It also serves as cell surface receptor for the cytokine macrophage migration inhibitory factor (MIF) which, when bound to the encoded protein, initiates survival pathways and cell proliferation. This protein also interacts with amyloid precursor protein (APP) and suppresses the production of amyloid beta (Abeta). Multiple alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Aug 2011]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

8 in total
7 with predicted TM region
0 with predicted signal peptide

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Golgi apparatus

Additional location(s)

 

Staining summary

Localized to the Golgi apparatus.

Reliability (APE)

Low

Antibodies in assay

CAB002506, HPA010592
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

Cytoplasmic and membranous expression in several tissues, most abundant in lymphoid cells.

Tissue specificity

Expressed in 50 out of 79 cell types

Reliability (APE)

Medium

Antibodies in assay

CAB002506, HPA010592
 

Organ

No of cell types

Protein expression

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

Level of annotated protein expression





High
Medium
Low
None

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 69% of the cancers

Antibodies in assay

CAB002506, HPA010592
 

Tissue

Cancer staining

Protein
expression of
normal tissue

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

Tissue

Cancer staining

Protein
expression of
normal tissue

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

CAB002506

HPA010592

CAB002506

HPA010592

A-431 Skin Medium
NegativeStrong
A-549 Lung Low
CACO-2 Colon High
HEK 293 Embryonal kidney Not detected
HeLa Cervix Low
Hep-G2 Liver High
MCF-7 Pleural effusion Low
PC-3 Bone marrow Not detected
RT-4 Urinary bladder High
U-2 OS Bone Low
ModerateStrong
U-251 MG Brain Low
WeakNegative

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

CAB002506 mAb
HPA010592 pAb