From Wikipedia, the free encyclopedia
SLC45A2
Identifiers
Aliases SLC45A2, 1A1, AIM1, MATP, OCA4, SHEP5, solute carrier family 45 member 2
External IDs OMIM: 606202; MGI: 2153040; HomoloGene: 9412; GeneCards: SLC45A2; OMA: SLC45A2 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001012509
NM_001297417
NM_016180

NM_053077

RefSeq (protein)

NP_001012527
NP_001284346
NP_057264

NP_444307

Location (UCSC) Chr 5: 33.94 – 33.98 Mb Chr 15: 11 – 11.03 Mb
PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

Membrane-associated transporter protein (MATP), also known as solute carrier family 45 member 2 (SLC45A2) or melanoma antigen AIM1, is a protein that in humans is encoded by the SLC45A2 gene. [5] [6] [7]

In human, the SLC45A2 gene is located on the short (p) arm of chromosome 5 at position 13.2.

Function

SLC45A2 is a transporter protein that mediates melanin synthesis. It may regulate the pH of the melanosome, affecting tyrosinase activity. [8] SLC45A2 is also a melanocyte differentiation antigen that is expressed in a high percentage of melanoma cell lines. [9] A similar sequence gene in medaka fish, 'B,' encodes a transporter that mediates melanin synthesis. Mutations in this gene are a cause of oculocutaneous albinism type 4. Alternative splicing results in multiple transcript variants encoding different isoforms. [7] Protein expression is localized to the melanosome, and analysis of the by knockdown of RNA expression leads to altered melanosome pH potentially altering tyrosinase function by affecting copper binding. [10]

In melanocytic cell types, the SLC45A2 gene is regulated by microphthalmia-associated transcription factor. [11] [12]

SLC45A2 has been found to play a role in pigmentation in several species. In humans, it has been identified as a factor in the light skin of Europeans and as an ancestry-informative marker (AIM) for distinguishing Sri Lankan from European ancestry. [13] Mutations in the gene have also been identified as the cause of human Type IV oculocutaneous albinism. [14] SLC45A2 is the so-called cream gene responsible in horses for buckskin, palomino and cremello coloration, while a mutation in this gene underlies the white tiger variant. [15] In dogs a mutation to this gene causes white fur, pink skin, and blue eyes. [16]

SLC45A2 was identified as a melanoma tumor-associated antigen with high tumor specificity and reduced potential for autoimmune toxicity, and is currently in clinical development as a target for T-cell based immunotherapy. [17]

See also

References

  1. ^ a b c ENSG00000164175 GRCh38: Ensembl release 89: ENSG00000281919, ENSG00000164175Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000022243Ensembl, 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. ^ Nakayama K, Fukamachi S, Kimura H, Koda Y, Soemantri A, Ishida T (Mar 2002). "Distinctive distribution of AIM1 polymorphism among major human populations with different skin color". Journal of Human Genetics. 47 (2): 92–4. doi: 10.1007/s100380200007. PMID  11916009.
  6. ^ Newton JM, Cohen-Barak O, Hagiwara N, Gardner JM, Davisson MT, King RA, et al. (November 2001). "Mutations in the human orthologue of the mouse underwhite gene (uw) underlie a new form of oculocutaneous albinism, OCA4". American Journal of Human Genetics. 69 (5): 981–8. doi: 10.1086/324340. PMC  1274374. PMID  11574907.
  7. ^ a b "Entrez Gene: SLC45A2 solute carrier family 45, member 2".
  8. ^ Mariat D, Taourit S, Guérin G (2003). "A mutation in the MATP gene causes the cream coat colour in the horse". Genetics Selection Evolution. 35 (1): 119–133. doi: 10.1186/1297-9686-35-1-119. PMC  2732686. PMID  12605854.
  9. ^ Harada M, Li YF, El-Gamil M, Rosenberg SA, Robbins PF (February 2001). "Use of an in vitro immunoselected tumor line to identify shared melanoma antigens recognized by HLA-A*0201-restricted T cells". Cancer Research. 61 (3): 1089–94. PMID  11221837.
  10. ^ Bin BH, Bhin J, Yang SH, Shin M, Nam YJ, Choi DH, et al. (2015). "Membrane-Associated Transporter Protein (MATP) Regulates Melanosomal pH and Influences Tyrosinase Activity". PLOS ONE. 10 (6): e0129273. Bibcode: 2015PLoSO..1029273B. doi: 10.1371/journal.pone.0129273. PMC  4461305. PMID  26057890.
  11. ^ Du J, Fisher DE (January 2002). "Identification of Aim-1 as the underwhite mouse mutant and its transcriptional regulation by MITF". The Journal of Biological Chemistry. 277 (1): 402–6. doi: 10.1074/jbc.M110229200. PMID  11700328.
  12. ^ Hoek KS, Schlegel NC, Eichhoff OM, Widmer DS, Praetorius C, Einarsson SO, et al. (December 2008). "Novel MITF targets identified using a two-step DNA microarray strategy". Pigment Cell & Melanoma Research. 21 (6): 665–76. doi: 10.1111/j.1755-148X.2008.00505.x. PMID  19067971. S2CID  24698373.
  13. ^ Soejima M, Koda Y (January 2007). "Population differences of two coding SNPs in pigmentation-related genes SLC24A5 and SLC45A2". International Journal of Legal Medicine. 121 (1): 36–9. doi: 10.1007/s00414-006-0112-z. PMID  16847698. S2CID  11192076.
  14. ^ "OMIM Entry - #606574 - ALBINISM, OCULOCUTANEOUS, TYPE IV; OCA4". Mendelian Inheritance in Man. Johns Hopkins University. Retrieved 2020-08-05.
  15. ^ Xu X, Dong GX, Hu XS, Miao L, Zhang XL, Zhang DL, et al. (June 2013). "The genetic basis of white tigers". Current Biology. 23 (11): 1031–5. Bibcode: 2013CBio...23.1031X. doi: 10.1016/j.cub.2013.04.054. PMID  23707431.
  16. ^ Wijesena HR, Schmutz SM (May–June 2015). "A Missense Mutation in SLC45A2 Is Associated with Albinism in Several Small Long Haired Dog Breeds". The Journal of Heredity. 106 (3): 285–8. doi: 10.1093/jhered/esv008. PMID  25790827.
  17. ^ Park J, Talukder AH, Lim SA, Kim K, Pan K, Melendez B, et al. (August 2017). "SLC45A2: A Melanoma Antigen with High Tumor Selectivity and Reduced Potential for Autoimmune Toxicity". Cancer Immunology Research. 5 (8): 618–629. doi: 10.1158/2326-6066.CIR-17-0051. PMC  6087543. PMID  28630054.

Further reading

External links

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


From Wikipedia, the free encyclopedia
SLC45A2
Identifiers
Aliases SLC45A2, 1A1, AIM1, MATP, OCA4, SHEP5, solute carrier family 45 member 2
External IDs OMIM: 606202; MGI: 2153040; HomoloGene: 9412; GeneCards: SLC45A2; OMA: SLC45A2 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001012509
NM_001297417
NM_016180

NM_053077

RefSeq (protein)

NP_001012527
NP_001284346
NP_057264

NP_444307

Location (UCSC) Chr 5: 33.94 – 33.98 Mb Chr 15: 11 – 11.03 Mb
PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

Membrane-associated transporter protein (MATP), also known as solute carrier family 45 member 2 (SLC45A2) or melanoma antigen AIM1, is a protein that in humans is encoded by the SLC45A2 gene. [5] [6] [7]

In human, the SLC45A2 gene is located on the short (p) arm of chromosome 5 at position 13.2.

Function

SLC45A2 is a transporter protein that mediates melanin synthesis. It may regulate the pH of the melanosome, affecting tyrosinase activity. [8] SLC45A2 is also a melanocyte differentiation antigen that is expressed in a high percentage of melanoma cell lines. [9] A similar sequence gene in medaka fish, 'B,' encodes a transporter that mediates melanin synthesis. Mutations in this gene are a cause of oculocutaneous albinism type 4. Alternative splicing results in multiple transcript variants encoding different isoforms. [7] Protein expression is localized to the melanosome, and analysis of the by knockdown of RNA expression leads to altered melanosome pH potentially altering tyrosinase function by affecting copper binding. [10]

In melanocytic cell types, the SLC45A2 gene is regulated by microphthalmia-associated transcription factor. [11] [12]

SLC45A2 has been found to play a role in pigmentation in several species. In humans, it has been identified as a factor in the light skin of Europeans and as an ancestry-informative marker (AIM) for distinguishing Sri Lankan from European ancestry. [13] Mutations in the gene have also been identified as the cause of human Type IV oculocutaneous albinism. [14] SLC45A2 is the so-called cream gene responsible in horses for buckskin, palomino and cremello coloration, while a mutation in this gene underlies the white tiger variant. [15] In dogs a mutation to this gene causes white fur, pink skin, and blue eyes. [16]

SLC45A2 was identified as a melanoma tumor-associated antigen with high tumor specificity and reduced potential for autoimmune toxicity, and is currently in clinical development as a target for T-cell based immunotherapy. [17]

See also

References

  1. ^ a b c ENSG00000164175 GRCh38: Ensembl release 89: ENSG00000281919, ENSG00000164175Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000022243Ensembl, 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. ^ Nakayama K, Fukamachi S, Kimura H, Koda Y, Soemantri A, Ishida T (Mar 2002). "Distinctive distribution of AIM1 polymorphism among major human populations with different skin color". Journal of Human Genetics. 47 (2): 92–4. doi: 10.1007/s100380200007. PMID  11916009.
  6. ^ Newton JM, Cohen-Barak O, Hagiwara N, Gardner JM, Davisson MT, King RA, et al. (November 2001). "Mutations in the human orthologue of the mouse underwhite gene (uw) underlie a new form of oculocutaneous albinism, OCA4". American Journal of Human Genetics. 69 (5): 981–8. doi: 10.1086/324340. PMC  1274374. PMID  11574907.
  7. ^ a b "Entrez Gene: SLC45A2 solute carrier family 45, member 2".
  8. ^ Mariat D, Taourit S, Guérin G (2003). "A mutation in the MATP gene causes the cream coat colour in the horse". Genetics Selection Evolution. 35 (1): 119–133. doi: 10.1186/1297-9686-35-1-119. PMC  2732686. PMID  12605854.
  9. ^ Harada M, Li YF, El-Gamil M, Rosenberg SA, Robbins PF (February 2001). "Use of an in vitro immunoselected tumor line to identify shared melanoma antigens recognized by HLA-A*0201-restricted T cells". Cancer Research. 61 (3): 1089–94. PMID  11221837.
  10. ^ Bin BH, Bhin J, Yang SH, Shin M, Nam YJ, Choi DH, et al. (2015). "Membrane-Associated Transporter Protein (MATP) Regulates Melanosomal pH and Influences Tyrosinase Activity". PLOS ONE. 10 (6): e0129273. Bibcode: 2015PLoSO..1029273B. doi: 10.1371/journal.pone.0129273. PMC  4461305. PMID  26057890.
  11. ^ Du J, Fisher DE (January 2002). "Identification of Aim-1 as the underwhite mouse mutant and its transcriptional regulation by MITF". The Journal of Biological Chemistry. 277 (1): 402–6. doi: 10.1074/jbc.M110229200. PMID  11700328.
  12. ^ Hoek KS, Schlegel NC, Eichhoff OM, Widmer DS, Praetorius C, Einarsson SO, et al. (December 2008). "Novel MITF targets identified using a two-step DNA microarray strategy". Pigment Cell & Melanoma Research. 21 (6): 665–76. doi: 10.1111/j.1755-148X.2008.00505.x. PMID  19067971. S2CID  24698373.
  13. ^ Soejima M, Koda Y (January 2007). "Population differences of two coding SNPs in pigmentation-related genes SLC24A5 and SLC45A2". International Journal of Legal Medicine. 121 (1): 36–9. doi: 10.1007/s00414-006-0112-z. PMID  16847698. S2CID  11192076.
  14. ^ "OMIM Entry - #606574 - ALBINISM, OCULOCUTANEOUS, TYPE IV; OCA4". Mendelian Inheritance in Man. Johns Hopkins University. Retrieved 2020-08-05.
  15. ^ Xu X, Dong GX, Hu XS, Miao L, Zhang XL, Zhang DL, et al. (June 2013). "The genetic basis of white tigers". Current Biology. 23 (11): 1031–5. Bibcode: 2013CBio...23.1031X. doi: 10.1016/j.cub.2013.04.054. PMID  23707431.
  16. ^ Wijesena HR, Schmutz SM (May–June 2015). "A Missense Mutation in SLC45A2 Is Associated with Albinism in Several Small Long Haired Dog Breeds". The Journal of Heredity. 106 (3): 285–8. doi: 10.1093/jhered/esv008. PMID  25790827.
  17. ^ Park J, Talukder AH, Lim SA, Kim K, Pan K, Melendez B, et al. (August 2017). "SLC45A2: A Melanoma Antigen with High Tumor Selectivity and Reduced Potential for Autoimmune Toxicity". Cancer Immunology Research. 5 (8): 618–629. doi: 10.1158/2326-6066.CIR-17-0051. PMC  6087543. PMID  28630054.

Further reading

External links

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



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