BST1

Source: Wikipedia, the free encyclopedia.
BST1
Gene ontology
Molecular function
Cellular component
Biological process
Sources:Amigo / QuickGO
Ensembl
UniProt
RefSeq (mRNA)

NM_004334

NM_009763

RefSeq (protein)

NP_004325

NP_033893

Location (UCSC)Chr 4: 15.7 – 15.74 MbChr 5: 43.98 – 44 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Bst1 (Bone marrow stromal cell antigen 1, ADP-ribosyl cyclase 2, CD157) is an enzyme that in humans is encoded by the BST1 gene.[5][6][7] CD157 is a paralog of CD38, both of which are located on chromosome 4 (4p15) in humans.[8]

Bst1 is a stromal cell line-derived glycosylphosphatidylinositol-anchored molecule that facilitates pre-B-cell growth. The deduced amino acid sequence exhibits 33% similarity with CD38. BST1 expression is enhanced in bone marrow stromal cell lines derived from patients with rheumatoid arthritis. The polyclonal B-cell abnormalities in rheumatoid arthritis may be, at least in part, attributed to BST1 overexpression in the stromal cell population.[7]

CD157 and CD38 are both members of the ADP-ribosyl cyclase family of enzymes that catalyze the formation of nicotinamide and adenosine diphosphate ribose (ADPR) or cyclic ADP-ribose (cADPR) from NAD+, although CD157 is a much weaker catalyst than CD38.[9][10][11] cADPR is required for regulation of Ca2+ in cells.[10] Only CD38 hydrolyzed cADPR to ADPR.[11] CD38 is widely expressed in tissues, whereas CD157 is primarily found in gut and lymphoid tissue.[11]

CD157 has an important role in controlling the migration of

leukocytes, the adhesion of leukocytes to blood vessel walls, and the passage of leukocytes through blood vessel walls.[8]

CD157 contributes to macrophage killing of the Mycobacterium tuberculosis bacteria responsible for tuberculosis.[12]

CD157 is highly expressed in acute myeloid leukemia, and is being evaluated as a diagnostic sign, as a treatment target, and as a means of monitoring treatment progress.[13]

BST1 and

BST2 genes are unregulated by the Nicotinamide (NAM) metabolism pathway.[14]

See also

References

  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000109743Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000029082Ensembl, May 2017
  3. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. PMID 29162908
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  6. .
  7. ^ a b "Entrez Gene: BST1 bone marrow stromal cell antigen 1".
  8. ^
    S2CID 205732787
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  10. ^ .
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External links

Further reading

This article incorporates text from the United States National Library of Medicine, which is in the public domain.


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