Chromosome 1
| Chromosome 1 | |
|---|---|
Human chromosome 1 pair after G-banding. One is from mother, one is from father. | |
Chromosome 1 pair in human male karyogram. | |
| Features | |
| Length (bp) | 248,387,328 bp (CHM13) |
| No. of genes | 1,961 (CCDS) |
| Type | Autosome |
| Centromere position | Metacentric (123.4 Mbp) |
| Complete gene lists | |
| CCDS | Gene list |
| HGNC | Gene list |
| UniProt | Gene list |
| NCBI | Gene list |
| External map viewers | |
| Ensembl | Chromosome 1 |
| Entrez | Chromosome 1 |
| NCBI | Chromosome 1 |
| UCSC | Chromosome 1 |
| Full DNA sequences | |
| RefSeq | NC_000001 (FASTA) |
| GenBank | CM000663 (FASTA) |
Chromosome 1 is the designation for the largest human chromosome. Humans have two copies of chromosome 1, as they do with all of the autosomes, which are the non-sex chromosomes. Chromosome 1 spans about 249 million nucleotide base pairs, which are the basic units of information for DNA. It represents about 8% of the total DNA in human cells.
It was the last completed chromosome, sequenced two decades after the beginning of the Human Genome Project.