Table 5.
TP53 mutations | |||||||||||||
Leukemia | TP53 exon | Codon change | Predicted amino-acid change | p53 structural motifa | Structure function predictionb,c | Mutant p53 transactivation activityb,d | Number of mutations at codonb,e | Percentage of known TP53b,e substitutions | Cancers in which codon is commonly mutatedb,f(% of TP53 mutations at codon) | ||||
pPCL | 5 | TGC>TGG | C141W | NDBL/β-sheets | Nonfunctional | Nonfunctional | 160 | 0.8 | colon, ovarian, oesophagus (>1%); breast, hematopoietic (>0.5%) | ||||
pPCL | 5 | CTG>CCG | L145P | NDBL/β-sheets | Nonfunctional | Nonfunctional | 59 | 0.3 | prostate (>1%); lymphoid, pancreas, stomach (>0.5%) | ||||
pPCL | 6 | TAT>TGT | Y220C | NDBL/β-sheets | Nonfunctional | Nonfunctional | 334 | 1.7 | oropharyngeal, biliary, ovarian, pancreas, breast, hematopoietic, lymphoid, others (all >1%) | ||||
pPCL | 7 | TAC>TGC | Y234C | NDBL/β-sheets | Nonfunctional | Nonfunctional | 178 | 0.9 | bone, oropharyngeal, kidney, cervix, brain, ovary, lymphoid, hematopoietic, others (all > 1 %) | ||||
sPCL | 8 | CGT>TGT | R273C | L1/S/H2 | Nonfunctional | Nonfunctional | 1471 | 7.4 | penis (83%), nasophyngeal (27%), thyroid (15%), brain (15%), pancreas (12%); haematopoitic (6.1%), lymphoid (5.3%) | ||||
sPCL | 8 | TTT>TAT | F270Y | NDBL/β-sheets | Nonfunctional | Functional | 101 | 0.5 | lymph node (1.1%), oesophagus (0.8%), lung (0.75%), hematopoitic (0.4%) | ||||
sPCL | 11 | AAG > -AG (373delA) | FS | NA | Nonfunctional | NA | NA | NA | NA | ||||
N- and K- RAS mutations | |||||||||||||
Leukemia | RAS | Exon | Codon change | Predicted aa change | No.identical amino-acid substitutions in Sanger databaseg | Cancers with identical mutation (no. of identical mutations per cancer in COSMIC databaseg) | |||||||
pPCL | K | 1 | GGT>GAT | G12V | 2422 | Colon (966), pancreas (787), lung (384), ovary (90) | |||||||
pPCL | K | 2 | CCA>CAC | Q61H | 74 | Colon (22), lung (21), pancreas (7), hematopoietic and lymphoid (6) | |||||||
pPCL | N | 2 | CCA>CGA | Q61R | 386 | Skin (208), thyroid (97), hematopoietic and lymphoid (41) | |||||||
sPCL | K | 1 | GGT>GCT | G12R | 471 | Pancreas (325), colon (53), lung (44), hematopoietic and lymphoid (6) | |||||||
sPCL | K | 2 | CCA>CAC | Q61H | 74 | Colon (22), lung (21), pancreas (7), hematopoietic and lymphoid (6) | |||||||
sPCL | N | 2 | CCA>CGA | Q61R | 386 | Skin (208), thyroid (97), hematopoietic and lymphoid (41) |
Abbreviations: COSMIC, Catalog of Somatic Mutations in Cancer; FS, frameshift; IARC, International Agency for Research on Cancer; PCL, plasma cell leukemia; pPCL, primary PCL; sPCL, secondary PCL; WT, wild type.
Data were obtained from the IARC p53 website (http://www-p53.iarc.fr/index.html).
Functional predictions were derived using a model that takes into account the three-dimensional structure of WTand mutant proteins and is trained on the transactivaton dataset from Kato et al.34
Functional classification of TP53 mutations based on the overall transcriptional activity on eight different promoters as measured by Kato et al.34
Number and percent of TP53 mutations that occur at the specified codon in the IARC database of 19 796 TP53 mutations.
Cancers that commonly target the specified codon for mutation and, per cancer, the percent of TP53 missense or nonsense mutations that involve the codon.
The data were obtained from the Sanger COSMIC, http://www.sanger.ac.uk/genetics/CGP/cosmic.