{{Rsnum
|rsid=2131877
|Gene=C3orf21
|Chromosome=3
|position=195137645
|Orientation=minus
|GMAF=0.3035
|Gene_s=XXYLT1
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(C;C)
|geno2=(C;T)
|geno3=(T;T)
}}{{ population diversity
| geno1=(C;C)
| geno2=(C;T)
| geno3=(T;T)
| CEU | 61.9 | 33.6 | 4.4
| HCB | 17.5 | 48.9 | 33.6
| JPT | 18.6 | 47.8 | 33.6
| YRI | 62.6 | 31.3 | 6.1
| ASW | 64.9 | 33.3 | 1.8
| CHB | 17.5 | 48.9 | 33.6
| CHD | 20.2 | 49.5 | 30.3
| GIH | 38.6 | 53.5 | 7.9
| LWK | 70.9 | 26.4 | 2.7
| MEX | 67.2 | 29.3 | 3.4
| MKK | 78.8 | 19.2 | 1.9
| TSI | 58.8 | 37.3 | 3.9
| HapMapRevision=28
}}{{PMID Auto
|PMID=20674325
|Title=Colorimetric genotyping of single nucleotide polymorphism based on selective aggregation of unmodified gold nanoparticles
}}

{{PMID Auto
|PMID=20876614
|Title=A Genome-wide association study reveals susceptibility variants for non-small cell lung cancer in the Korean population
}}

{{PMID|22310392}} Association between C3orf21, TP63 polymorphisms and environment and NSCLC in never-smoking Chinese population.

{{on chip | Affy GenomeWide 6}}