Analysis of IGH, IGK, and IGL gene rearrangements in BMMCs of RAG-deficient SCID patients
Patient . | Origin of DNA . | Analyzed gene . | PCR products . | V gene segment . | Del . | Junctional region . | Del . | D gene segment . | Del . | Junctional region . | Del . | J gene segment . | Frame . | Somatic mutations . | No. of identical clones . |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
RAG-SCID 1 | BMMC | IGH | Identified | DH2-15 | − 5 | T | − 2 | JH4 | NA | NA | 1 | ||||
IGK | Not identified | ||||||||||||||
IGL | Identified | Vλ2 | − 4 | CCT | – | – | – | – | 0 | Jλ3 | + | Absent | 1 | ||
RAG-SCID 3 | BMMC | IGH | Identified | VH3-7 | 0 | TTGTA | − 2 | DH3-22 | 0 | – | − 1 | JH3b | + | Absent | 4 |
VH5-51 | − 1 | GC | − 1 | DH2-15/ INV | − 15 | GGGCTACGGGG | − 6 | JH4b | + | Absent | 6 | ||||
DH3-10 | − 7 | G | − 11 | JH2 | NA | NA | 4 | ||||||||
DH2-21 | − 7 | AAGAC | − 4 | JH3b | NA | NA | 1 | ||||||||
DH4-23 | − 3 | GACTGCGA | − 11 | JH4 | NA | NA | 1 | ||||||||
DH4-17 | − 1 | ACTAG | − 4 | JH5 | NA | NA | 3 | ||||||||
IGK | Not identified | ||||||||||||||
IGL | Identified | Vλ3-10∗01 | 0 | – | – | – | – | – | 0 | Jλ3∗01 | + | Absent | 3 |
Patient . | Origin of DNA . | Analyzed gene . | PCR products . | V gene segment . | Del . | Junctional region . | Del . | D gene segment . | Del . | Junctional region . | Del . | J gene segment . | Frame . | Somatic mutations . | No. of identical clones . |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
RAG-SCID 1 | BMMC | IGH | Identified | DH2-15 | − 5 | T | − 2 | JH4 | NA | NA | 1 | ||||
IGK | Not identified | ||||||||||||||
IGL | Identified | Vλ2 | − 4 | CCT | – | – | – | – | 0 | Jλ3 | + | Absent | 1 | ||
RAG-SCID 3 | BMMC | IGH | Identified | VH3-7 | 0 | TTGTA | − 2 | DH3-22 | 0 | – | − 1 | JH3b | + | Absent | 4 |
VH5-51 | − 1 | GC | − 1 | DH2-15/ INV | − 15 | GGGCTACGGGG | − 6 | JH4b | + | Absent | 6 | ||||
DH3-10 | − 7 | G | − 11 | JH2 | NA | NA | 4 | ||||||||
DH2-21 | − 7 | AAGAC | − 4 | JH3b | NA | NA | 1 | ||||||||
DH4-23 | − 3 | GACTGCGA | − 11 | JH4 | NA | NA | 1 | ||||||||
DH4-17 | − 1 | ACTAG | − 4 | JH5 | NA | NA | 3 | ||||||||
IGK | Not identified | ||||||||||||||
IGL | Identified | Vλ3-10∗01 | 0 | – | – | – | – | – | 0 | Jλ3∗01 | + | Absent | 3 |
PCR products of the IGH gene could not be identified using DNA from BMMCs in patients RAG-SCID 2.1, 2.2, 4, 5, and 6.
Del indicates deletion of germline gene segment nucleotides; NA, not applicable; INV, inverted.