diff --git a/R/VCF_to_catalog_functions.R b/R/VCF_to_catalog_functions.R
index 31615462..9112e219 100644
--- a/R/VCF_to_catalog_functions.R
+++ b/R/VCF_to_catalog_functions.R
@@ -173,7 +173,7 @@ GetStrelkaVAF <-function(vcf) {
   return(vaf)
 }
 
-#' Read in the data lines of a Variant Call Format (VCF) file created by MuTect
+#' Read in the data lines of a Variant Call Format (VCF) file created by Mutect
 #'
 #' @importFrom utils read.csv
 #'
@@ -224,7 +224,7 @@ MakeDataFrameFromMutectVCF <- function(file) {
 }
 
 #' Read in the data lines of a Variant Call Format (VCF) file created by
-#'     MuTect
+#'     Mutect
 #'
 #' @importFrom utils read.csv
 #'
diff --git a/data-raw/vcf-investigation.R b/data-raw/vcf-investigation.R
new file mode 100644
index 00000000..d28deeac
--- /dev/null
+++ b/data-raw/vcf-investigation.R
@@ -0,0 +1,11 @@
+
+df <- MakeDataFrameFromMutectVCF(
+  "../OTA_vcf/0-5mM-OTA-S9-1_S7.bam.recal_calls.vcf")
+dt <- data.table(df)
+dt1 <- dt[nchar(REF) >= 2 & nchar(ALT) >= 2]
+View(dt1)
+
+dt$VAF <- GetMutectVAF(dt)
+dt.SBS <- dt[nchar(REF) == 1 & nchar(ALT) == 1]
+split.vcf <- SplitStrelkaSBSVCF(dt.SBS)
+View(split.vcf$DBS.vcf)
diff --git a/inst/WORDLIST b/inst/WORDLIST
index a4dc0eeb..fbb310ba 100644
--- a/inst/WORDLIST
+++ b/inst/WORDLIST
@@ -71,7 +71,6 @@ microhomology
 Mmusculus
 mutect
 Mutect
-MuTect
 NN
 nucleotides
 opar
diff --git a/man/MakeDataFrameFromMutectVCF.Rd b/man/MakeDataFrameFromMutectVCF.Rd
index 62bf8e1e..78ac4651 100644
--- a/man/MakeDataFrameFromMutectVCF.Rd
+++ b/man/MakeDataFrameFromMutectVCF.Rd
@@ -2,7 +2,7 @@
 % Please edit documentation in R/VCF_to_catalog_functions.R
 \name{MakeDataFrameFromMutectVCF}
 \alias{MakeDataFrameFromMutectVCF}
-\title{Read in the data lines of a Variant Call Format (VCF) file created by MuTect}
+\title{Read in the data lines of a Variant Call Format (VCF) file created by Mutect}
 \usage{
 MakeDataFrameFromMutectVCF(file)
 }
@@ -13,6 +13,6 @@ MakeDataFrameFromMutectVCF(file)
 A data frame storing mutation records of a VCF file.
 }
 \description{
-Read in the data lines of a Variant Call Format (VCF) file created by MuTect
+Read in the data lines of a Variant Call Format (VCF) file created by Mutect
 }
 \keyword{internal}
diff --git a/man/ReadMutectVCF.Rd b/man/ReadMutectVCF.Rd
index 5b603fc1..8ac31fe5 100644
--- a/man/ReadMutectVCF.Rd
+++ b/man/ReadMutectVCF.Rd
@@ -3,7 +3,7 @@
 \name{ReadMutectVCF}
 \alias{ReadMutectVCF}
 \title{Read in the data lines of a Variant Call Format (VCF) file created by
-    MuTect}
+    Mutect}
 \usage{
 ReadMutectVCF(file)
 }
@@ -15,6 +15,6 @@ A data frame storing mutation records of a VCF file with VAFs added.
 }
 \description{
 Read in the data lines of a Variant Call Format (VCF) file created by
-    MuTect
+    Mutect
 }
 \keyword{internal}