{{Rsnum
|rsid=33918474
|Chromosome=11
|Orientation=minus
|geno1=(A;A)
|geno2=(A;T)
|geno3=(T;T)
|Gene=HBB
|position=5226960
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|Gene_s=HBB
}}{{omim
|id=141900
|rsnum=33918474
|variant=0450
}}{{ClinVar
|rsid=33918474
|Reversed=1
|FwdREF=T
|FwdALT=A,G
|REF=A
|ALT=C,T
|RSPOS=5248190
|CHROM=11
|dbSNPBuildID=126
|SSR=0
|SAO=1
|VP=0x050368000000000102110100
|GENEINFO=HBB:3043
|GENE_NAME=HBB
|GENE_ID=3043
|WGT=0
|VC=SNV
|CLNALLE=2
|CLNHGVS=NC_000011.9:g.5248190A>T
|CLNORIGIN=1
|CLNSIG=255
|CLNCUI=
|Tags=RV;PM;PMC;S3D;SLO;GNO;OTHERKG;LSD;OM
|CLNACC=RCV000016805.1
|CLNDBN=HEMOGLOBIN TROLLHAETTAN
|CLNSRC=HBVAR; OMIM Allelic Variant
|CLNSRCID=258; 141900.0450
|Disease=HEMOGLOBIN TROLLHAETTAN
}}{{PMID Auto
|PMID=7914875
|Title=Hb Trollhattan [beta 20(B2)Val-->Glu]--a new haemoglobin variant with increased oxygen affinity causing erythrocytosis.
}}

{{PMID Auto
|PMID=8936460
|Title=Hb Uxbridge [beta 20 (B2)Val-->Gly]: a new variant with mild increase in oxygen affinity found during a neonatal screening program.
}}