| Abbreviation: | FXIII |
| Aliases: | Fibrin stabilizing factor |
| Gene Symbol: | F13B |
| SubUnit: | B |
| Type: | carrier protein |
| Main Action: | Crosslinks fibrin |
| Genomic Reference Sequence: | NG_012065.1 |
| Locus Reference Genomic (LRG): | LRG_550 |
| LOVD: | https://www.LOVD.nl/F13B |
| Locus Specific Database (LSDB): | https://dbs.eahad.org/ |
| Amino Acid Numbering Conversion Factor (Old > New;+/-): |
Variant Details: Factor XIII** (B chain) (1)
| Predicted Mr (da): | 75,511 |
| Predicted pl: | 6 |
| Gene Size (bp): | 28,077 |
| Transcript Size (nt): | 2,217 |
| Number of Exons: | 12 |
| Gene Location: | 1q31 |
| Number of Amino Acids: | 661 |
| Mature Protein: | 21-661 |
| Observer Mr of Monomer (kDa): | 80** |
| Plasma Concentration (ug/ml): | 10 |
| Plasma Molarity (nM): | 30 |
| Half-life (h): | 200 |
| cDNA Reference Sequence (NM): | NM_001994.2 |
| Protein Reference Sequence (NP): | NP_001985.2 |
| Reference cDNA Sequence +1ATG (fasta format): | https://coagbase.org/wp-content/uploads/2022/01/NM_001994.fasta |
| Reference cDNA Sequence +1ATG (GenBank format): | https://coagbase.org/wp-content/uploads/2022/01/NM_001994.gb |
| Reference cDNA Sequence +1ATG with translation and exons marked (pdf format): | https://coagbase.org/wp-content/uploads/2022/01/NM_001994_F13B.pdf |
**Factor XIII circulates as a 326kDa tetramer of two A2B2