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PALB2

From SNPedia

is agene
is mentioned by
Full namepartner and localizer of BRCA2
EntrezGene79728
PheGenI79728
VariationViewer79728
ClinVarPALB2
GeneCardsPALB2
dbSNP79728
DiseasesPALB2
SADR79728
HugeNav79728
wikipediaPALB2
googlePALB2
gopubmedPALB2
EVSPALB2
HEFalMpPALB2
MyGene2PALB2
23andMePALB2
UniProtQ86YC2
EnsemblENSG00000083093
OMIM610355
# SNPs297
 Max MagnitudeChromosome positionSummary
i400048823,646,275
rs105751753923,629,214
rs105751756323,603,595
rs105751758523,641,155
rs105751760023,607,958
rs105751760223,630,316
rs1057520645
rs1057520653
rs1057520736
rs1060499812
rs1060499813
rs1060499814
rs1060499817
rs1060499818
rs1060499819
rs1060499821
rs1060499823
rs1060499824
rs1060499827
rs1060499828
rs1060499829
rs1060499830
rs1060499831
rs106050272623,626,273
rs106050273423,634,872
rs106050273823,635,994
rs106050274823,629,779
rs106050275923,630,447
rs106050276023,636,191
rs106050276123,635,111
rs106050276423,603,671
rs106050276923,635,851
rs106050277123,630,098
rs106050277223,635,613
rs106050278123,623,029
rs106050278523,635,180
rs106050278723,626,399
rs106050278823,635,498
rs106050280023,635,592
rs106050280323,630,412
rs106050280423,624,095
rs106050280523,634,993
rs1064793220
rs1064793772
rs1064793827
rs1064793869
rs1064795168
rs1064795640
rs1064795824
rs1064795953
... further results

This gene plays a role in breast cancer and Fanconi anemia, complementation group N.

PALB2 (Partner and Localizer of BRCA2) is a tumor suppressor gene encoding the PALB2 protein. The PALB2 protein binds and stabilizes the BRCA2 protein, allowing it to repair DNA in the same DNA damage response pathway as BRCA1. Single allele germline loss-of-function mutations in PALB2 are associated with an increased risk of breast cancer and pancreatic cancer, and biallelic mutations lead to a Fanconi anemia complementation group, [FANCN]]. PALB2 mutations have intermediate penetrance, with carriers having about a two- to four-fold increased risk of developing breast cancer compared with the general population. These risk estimates may be higher in patients with a family history of breast cancer.

PALB2 (partner and localizer of BRCA2) is a tumor suppressor gene which encodes for the PALB2 protein, which interacts with the protein produced by the BRCA2 gene. The PALB2 protein stabilizes the BRCA2 protein, allowing the BRCA2 protein to repair DNA double-strand breaks by a process known as homologous recombination. Monoallelic germline loss-of-function mutations in PALB2 are associated with an increased risk of breast and pancreatic cancer and biallelic mutations lead to a Fanconi anemia complementation group, designated subtype N (FANCN). Most pathogenic PALB2 mutations that have been detected are truncating frameshift or stop codons and are scattered throughout the entire gene region, without hot-spot areas.

[PMID 25099575] This paper 'Breast-Cancer Risk in Families with Mutations in PALB2' (N Engl J Med 2014; 371:497-506) analyzed the risk of breast cancer among 362 members of 154 families who had deleterious truncating, splice, or deletion mutations in PALB2. The age-specific breast-cancer risk for mutation carriers was estimated with the use of a modified segregation-analysis approach that allowed for the effects of PALB2 genotype and residual familial aggregation. The risk of breast cancer for female PALB2 mutation carriers, as compared with the general population, was eight to nine times as high among those younger than 40 years of age, six to eight times as high among those 40 to 60 years of age, and five times as high among those older than 60 years of age. The estimated cumulative risk of breast cancer among female mutation carriers was 14% (95% confidence interval [CI], 9 to 20) by 50 years of age and 35% (95% CI, 26 to 46) by 70 years of age. Breast-cancer risk was also significantly influenced by birth cohort (P<0.001) and by other familial factors (P=0.04). The absolute breast-cancer risk for PALB2 female mutation carriers by 70 years of age ranged from 33% (95% CI, 25 to 44) for those with no family history of breast cancer to 58% (95% CI, 50 to 66) for those with two or more first-degree relatives with breast cancer at 50 years of age.

Based on the Supplementary data presented in [PMID 25099575], PALB2 SNPs implicated in risk for breast cancer include:

  • rs180177102 - the most common, apparently, even though even it is quite rare

and more exhaustively:

dbSNP rs-id Coding Change
rs587776405 c.48G>A
rs180177142 c.72del
rs587776406 c.156del
rs180177143 c.172_175del
rs180177083 c.196C>T
rs180177084 c.229del
rs587776407 c.451C>T
rs515726124 c.509_510del
rs180177092 c.757_758del
rs587776408 c.886del
rs587776409 c.956_962del
rs180177097 c.1027del
rs587776410 c.1037_1041del
rs587776411 c.1108C>T
rs180177100 c.1240C>T
rs515726065 c.1314del
rs587776412 c.1431del
rs587776413 c.1571C>G
rs587776414 c.1591_1600del
rs180177102 c.1592del
rs118203997 c.1653T>A
rs587776415 c.2074C>T
rs587776416 c.2167_2168del
rs180177110 c.2257C>T
rs180177111 c.2323C>T
rs180177112 c.2386G>T
rs587776417 c.2515-1G>T
rs180177116 c.2521del
rs180177121 c.2686dup
rs180177122 c.2718G>A
rs587776418 c.2787_2788del
rs587776419 c.2834+1G>T
rs515726099 c.2835-1G>C
rs587776420 c.2888del
rs587776421 c.2919_2920del
rs180177127 c.2982dup
rs587776422 c.3022del
rs180177132 c.3113G>A
rs180177133 c.3116del
rs587776423 c.3201+1G>C
rs180177135 c.3323del
rs587776424 c.3423_3426del
rs587776425 c.3426dup
rs587776426 c.3456dup
rs587776427 c.3497_3498del
rs587776428 c.3504_3505del
rs118203998 c.3549C>A, C>G
rs515726117 c.3362del