chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 72379431 72379432 T G 3 GENIC homozygous 962858441 1 72379433 72379434 T G 3 GENIC homozygous 962858442 1 72379435 72379436 T A 3 GENIC homozygous 962858443