P01909 (DQA1_HUMAN) Homo sapiens (Human)
HLA class II histocompatibility antigen, DQ alpha 1 chain UniProtKBInterProInteractive Modelling
254 aa; Sequence (Fasta) Identical sequences: Homo sapiens: Q5Y7D2; A0A346FLH4
No models could be built to increase the coverage beyond existing experimental structures for this target sequence.
Sequence Features
| 8 | M -> L (in allele DQA1*01:01, allele DQA1*01:02, allele DQA1*01:03, allele DQA1*01:04, allele DQA1*01:05, allele DQA1*04:01 and allele DQA1*06:01; dbSNP:rs1047989) VAR_033399 dbSNP | ||
| 11 | A -> T (in allele DQA1*05:05, allele DQA1*05:08 and allele DQA1*05:09; dbSNP:rs1047992) VAR_033400 dbSNP | ||
| 17 | V -> M (in allele DQA1*01:04 and allele DQA1*01:05; dbSNP:rs12722039) VAR_050380 dbSNP | ||
| 18 | M -> T (in allele DQA1*03:03; dbSNP:rs11545686) VAR_050381 dbSNP | ||
| 24 | E -> K (in allele DQA1*05:09; dbSNP:rs41545012) VAR_060493 dbSNP | ||
| 25 | D -> G (in allele DQA1*01:04 and allele DQA1*01:05; dbSNP:rs12722042) VAR_050382 dbSNP | ||
| 34 | Y -> C (in allele DQA1*01:01, allele DQA1*01:02, allele DQA1*01:03, allele DQA1*01:04, allele DQA1*01:05, allele DQA1*01:06 and allele DQA1*01:07; dbSNP:rs1129740) VAR_060494 dbSNP | ||
| 41 | S -> F (in allele DQA1*01:01, allele DQA1*01:02, allele DQA1*01:03, allele DQA1*01:04, allele DQA1*01:05, allele DQA1*01:06 and allele DQA1*01:07; dbSNP:rs1071630) VAR_033401 dbSNP | ||
| 44 | P -> L (in allele DQA1*05:04; dbSNP:rs41549715) VAR_060495 dbSNP | ||
| 48 | Y -> F (in allele DQA1*02:01, allele DQA1*01:03, allele DQA1*06:01 and allele DQA1*06:02; dbSNP:rs12722051) VAR_033402 dbSNP | ||
| 49 | T -> S (in allele DQA1*03:01, allele DQA1*03:02 and allele DQA1*03:03; dbSNP:rs1048023) VAR_033403 dbSNP | ||
| 57 | Q -> E (in allele DQA1*01:01, allele DQA1*01:04, allele DQA1*01:05, allele DQA1*01:07, allele DQA1*02:01, allele DQA1*03:01, allele DQA1*03:02 and allele DQA1*03:03; dbSNP:rs10093) VAR_014604 dbSNP | ||
| 63 | G -> E (in allele DQA1*01:01, allele DQA1*01:02, allele DQA1*01:03, allele DQA1*01:04, allele DQA1*01:05, allele DQA1*01:06, allele DQA1*01:07, allele DQA1*02:01, allele DQA1*03:01, allele DQA1*03:02 and allele DQA1*03:03; dbSNP:rs1142323) VAR_060496 dbSNP | ||
| 64 | R -> K (in allele DQA1*01:03; dbSNP:rs36219699) VAR_050383 dbSNP | ||
| 67 | T -> A (in allele DQA1*01:06; dbSNP:rs41543221) VAR_060497 dbSNP | ||
| 68 | V -> A (in allele DQA1*01:01, allele DQA1*01:02, allele DQA1*01:03, allele DQA1*01:04, allele DQA1*01:05, allele DQA1*01:06 and allele DQA1*01:07; dbSNP:rs1142324) VAR_060498 dbSNP | ||
| 70 | C -> K (in allele DQA1*02:01; requires 2 nucleotide substitutions) VAR_060499 | ||
| 70 | C -> Q (in allele DQA1*03:01, allele DQA1*03:02 and allele DQA1*03:03; requires 2 nucleotide substitutions) VAR_060500 | ||
| 70 | C -> R (in allele DQA1*01:01, allele DQA1*01:02, allele DQA1*01:03, allele DQA1*01:04, allele DQA1*01:05, allele DQA1*01:06 and allele DQA1*01:07; dbSNP:rs1142326) VAR_060501 dbSNP | ||
| 70 | C -> Y (in dbSNP:rs3207983) VAR_033404 dbSNP | ||
| 71 | L -> W (in allele DQA1*01:01, allele DQA1*01:02,allele DQA1*01:03, allele DQA1*01:04, allele DQA1*01:05, allele DQA1*01:06 and allele DQA1*01:07; dbSNP:rs1142328) VAR_060502 dbSNP | ||
| 73 | V -> D (in dbSNP:rs760671632) VAR_033406 dbSNP | ||
| 73 | V -> E (in allele DQA1*01:01, allele DQA1*01:02, allele DQA1*01:03, allele DQA1*01:04, allele DQA1*01:05, allele DQA1*01:06 and allele DQA1*01:07; dbSNP:rs3208105) VAR_060503 dbSNP | ||
| 73 | V -> L (in allele DQA1*02:01, allele DQA1*03:01, allele DQA1*03:02 and allele DQA1*03:03; dbSNP:rs12722061) VAR_033405 dbSNP | ||
| 74 | L -> F (in allele DQA1*01:01, allele DQA1*01:02, allele DQA1*01:03, allele DQA1*01:04, allele DQA1*01:05, allele DQA1*01:06, allele DQA1*01:07, allele DQA1*02:01, allele DQA1*03:01, allele DQA1*03:02 and allele DQA1*03:03; dbSNP:rs9272698) VAR_060504 dbSNP | ||
| 75 | R -> H (in allele DQA1*02:01; dbSNP:rs28383449) VAR_060505 dbSNP | ||
| 75 | R -> S (in allele DQA1*01:01, allele DQA1*01:02, allele DQA1*01:03, allele DQA1*01:04, allele DQA1*01:05, allele DQA1*01:06 and allele DQA1*01:07; dbSNP:rs9272699) VAR_060506 dbSNP | ||
| 76 | Q -> K (in allele DQA1*01:01, allele DQA1*01:02, allele DQA1*01:03, allele DQA1*01:04, allele DQA1*01:05, allele DQA1*01:06 and allele DQA1*01:07; dbSNP:rs1048052) VAR_060507 dbSNP | ||
| 76 | Q -> R (in allele DQA1*02:01, allele DQA1*03:01, allele DQA1*03:02 and allele DQA1*03:03; dbSNP:rs12722069) VAR_060508 dbSNP | ||
| 77 | F -> L (in allele DQA1*02:01; dbSNP:rs3188043) VAR_060509 dbSNP | ||
| 78 | R -> GG (in allele DQA1*01:01, allele DQA1*01:02, allele DQA1*01:03, allele DQA1*01:04, allele DQA1*01:05,allele DQA1*01:06 and allele DQA1*01:07; dbSNP:rs4193) VAR_060510 dbSNP | ||
| 78 | R -> RR (in allele DQA1*03:01, allele DQA1*03:02 and allele DQA1*03:03) VAR_060511 | ||
| 81 | P -> R (in allele DQA1*05:02; dbSNP:rs41541412) VAR_060512 dbSNP | ||
| 83 | F -> G (in allele DQA1*01:01, allele DQA1*01:02, allele DQA1*01:03, allele DQA1*01:04, allele DQA1*01:05, allele DQA1*01:06 and allele DQA1*01:07; requires 2 nucleotide substitutions) VAR_060513 | ||
| 86 | T -> R (in allele DQA1*01:01, allele DQA1*01:02, allele DQA1*01:03, allele DQA1*01:04, allele DQA1*01:05, allele DQA1*01:06 and allele DQA1*01:07; dbSNP:rs1142333) VAR_033408 dbSNP | ||
| 88 | I -> M (in allele DQA1*01:01, allele DQA1*01:02, allele DQA1*01:03, allele DQA1*01:04, allele DQA1*01:05, allele DQA1*01:06 and allele DQA1*01:07; dbSNP:rs1142334) VAR_033409 dbSNP | ||
| 91 | L -> A (in allele DQA1*01:01, allele DQA1*01:02, allele DQA1*01:03, allele DQA1*01:04, allele DQA1*01:05, allele DQA1*01:06 and allele DQA1*01:07; requires 2 nucleotide substitutions) VAR_060514 | ||
| 91 | L -> T (in allele DQA1*04:01, allele DQA1*04:02, allele DQA1*04:04, allele DQA1*06:01 and allele DQA1*06:02; requires 2 nucleotide substitutions) VAR_060515 | ||
| 97 | S -> I (in allele DQA1*01:01, allele DQA1*01:02, allele DQA1*01:03, allele DQA1*01:04, allele DQA1*01:05, allele DQA1*01:06, allele DQA1*01:07, allele DQA1*02:01, allele DQA1*03:01, allele DQA1*03:02, allele DQA1*03:03, allele DQA1*04:01, allele DQA1*04:02, allele DQA1*04:04, allele DQA1*06:01 and allele DQA1*06:02; dbSNP:rs9279910) VAR_060516 dbSNP | ||
| 98 | L -> M (in allele DQA1*01:01, allele DQA1*01:02, allele DQA1*01:03, allele DQA1*01:04, allele DQA1*01:05, allele DQA1*01:06 and allele DQA1*01:07; dbSNP:rs1064944) VAR_060517 dbSNP | ||
| 98 | L -> V (in allele DQA1*03:01, allele DQA1*03:02 and allele DQA1*03:03; dbSNP:rs1064944) VAR_060518 dbSNP | ||
| 101 | R -> C (in allele DQA1*01:07; dbSNP:rs41542116) VAR_060519 dbSNP | ||
| 102 | S -> Y (in allele DQA1*01:01, allele DQA1*01:02, allele DQA1*01:03, allele DQA1*01:04, allele DQA1*01:05, allele DQA1*01:06 and allele DQA1*01:07; dbSNP:rs1129808) VAR_050384 dbSNP | ||
| 124 | L -> V (in allele DQA1*05:06; dbSNP:rs41555012) VAR_060520 dbSNP | ||
| 129 | I -> T (in allele DQA1*01:01, allele DQA1*01:02, allele DQA1*01:03, allele DQA1*01:04, allele DQA1*01:05, allele DQA1*01:07, allele DQA1*02:01, allele DQA1*03:01, allele DQA1*03:02, allele DQA1*03:03, allele DQA1*04:01, allele DQA1*04:02, allele DQA1*04:04, allele DQA1*06:01 and allele DQA1*06:02; dbSNP:rs707952) VAR_050385 dbSNP | ||
| 151 | H -> Q (in allele DQA1*01:01, allele DQA1*01:02, allele DQA1*01:04, allele DQA1*01:05 and allele DQA1*01:07; dbSNP:rs707950) VAR_050386 dbSNP | ||
| 152 | S -> A (in allele DQA1*01:03; dbSNP:rs41547417) VAR_060521 dbSNP | ||
| 160 | T -> I (in allele DQA1*04:02; dbSNP:rs41545514) VAR_060522 dbSNP | ||
| 161 | S -> I (in allele DQA1*05:08; dbSNP:rs41544114) VAR_060524 dbSNP | ||
| 161 | S -> R (in allele DQA1*06:02; dbSNP:rs41552014) VAR_060523 dbSNP | ||
| 175 | Y -> H (in allele DQA1*04:04; dbSNP:rs41550317) VAR_060525 dbSNP | ||
| 178 | L -> F (in allele DQA1*01:01, allele DQA1*01:02, allele DQA1*01:03, allele DQA1*01:04, allele DQA1*01:05, allele DQA1*01:07, allele DQA1*02:01, allele DQA1*03:01, allele DQA1*03:02, allele DQA1*03:03, allele DQA1*04:01, allele DQA1*04:02, allele DQA1*04:04, allele DQA1*06:01 and allele DQA1*06:02; dbSNP:rs707949) VAR_060526 dbSNP | ||
| 182 | A -> D (in allele DQA1*03:02 and allele DQA1*03:03; dbSNP:rs7990) VAR_060527 dbSNP | ||
| 182 | A -> S (in allele DQA1*05:03, allele DQA1*05:06 and allele DQA1*05:07; dbSNP:rs41561312) VAR_060528 dbSNP | ||
| 183 | E -> D (in allele DQA1*01:01, allele DQA1*01:02, allele DQA1*01:03, allele DQA1*01:04, allele DQA1*01:05, allele DQA1*01:07, allele DQA1*02:01, allele DQA1*03:01, allele DQA1*03:02, allele DQA1*03:03, allele DQA1*04:01, allele DQA1*04:02, allele DQA1*04:04, allele DQA1*06:01 and allele DQA1*06:02; dbSNP:rs707963) VAR_060529 dbSNP | ||
| 185 | S -> I (in allele DQA1*01:01, allele DQA1*01:02, allele DQA1*01:03, allele DQA1*01:04, allele DQA1*01:05, allele DQA1*01:07, allele DQA1*02:01, allele DQA1*03:01, allele DQA1*03:02, allele DQA1*03:03, allele DQA1*04:01, allele DQA1*04:02, allele DQA1*04:04, allele DQA1*06:01 and allele DQA1*06:02; dbSNP:rs707962) VAR_060530 dbSNP | ||
| 197 | K -> E (in allele DQA1*02:01, allele DQA1*03:01, allele DQA1*03:02, allele DQA1*03:03, allele DQA1*04:01, allele DQA1*04:02, allele DQA1*04:04, allele DQA1*06:01 and allele DQA1*06:02; dbSNP:rs2308891) VAR_060531 dbSNP | ||
| 197 | K -> Q (in allele DQA1*01:01, allele DQA1*01:02, allele DQA1*01:03, allele DQA1*01:04, allele DQA1*01:05 and allele DQA1*01:07; dbSNP:rs2308891) VAR_060532 dbSNP | ||
| 209 | A -> T (in allele DQA1*03:01, allele DQA1*03:02 and allele DQA1*03:03; dbSNP:rs9272785) VAR_050387 dbSNP | ||
| 221 | A -> T (in allele DQA1*01:04; dbSNP:rs35087390) VAR_050388 dbSNP | ||
| 229 | V -> M (in allele DQA1*01:02; dbSNP:rs9260) VAR_033411 dbSNP | ||
| 230 | G -> C (in allele DQA1*05:07; dbSNP:rs41545416) VAR_060533 dbSNP | ||
| 237 | F -> L (in allele DQA1*02:01, allele DQA1*03:01, allele DQA1*03:02 and allele DQA1*03:03; dbSNP:rs1048430) VAR_033412 dbSNP | ||
| 240 | R -> Q (in allele DQA1*01:01, allele DQA1*01:02, allele DQA1*01:03, allele DQA1*01:04 and allele DQA1*01:05; dbSNP:rs1048439) VAR_033413 dbSNP | ||
| 217-239 | Helical | ||
| 132-188 | |||
| 29-108 | MHC class II, alpha chain, N-terminal IPR001003PF00993 | ||
| 114-195 | Immunoglobulin C1-set IPR003597PF07654 |
Sequence Alignments
Experimental structures
| Description | Oligo-state | Ligands | Structure | Range |
|---|---|---|---|---|
| Bel602-DQ8.5-glia-gamma1 complex |
Heteromer A0A0B4J274; A0A0U5Q247; A0A580; A0A5B9; P01848; P08079; | 1×NAG; 1×CA; | 5ksa | |
| Assess | ||||
| Crystal structure of HLA-DQ2.5-CLIP1 at 2.73 resolution |
Heteromer P04233; Q5Y7D3; | 5ksu | ||
| Assess | ||||
| DQ2-P.fluor-alpha1a |
Heteromer O19712; | 2×NAG; 2×GOL; 1×PO4; | 6u3m | |
| Assess | ||||
| HLA-DQ2-glia-alpha1 |
Heteromer O19712; | 1×NAG; | 6mfg | |
| Assess | ||||
| Structure of the MHC class II molecule HLA-DQ8 bound with a deamidated gluten peptide |
Heteromer P01920; P18573; | 2nna | ||
| Assess | ||||
| JR5.1 protein complex |
Heteromer P01850; P04722; Q2YD82; Q5Y7D3; | 2×NAG; | 4ozf | |
| Assess | ||||
| LS2.8/3.15 - DQ2-P.fluor-alpha1a complex |
Heteromer O19712; | 1×NAG; | 6u3n | |
| Assess | ||||
| S16 protein complex |
Heteromer P01850; P04722; Q2YD82; Q5Y7D3; | 2×NAG; 1×CA; | 4ozh | |
| Assess | ||||
| T15-DQ8.5-glia-gamma1 complex |
Heteromer A0A0B4J274; A0A0U5Q247; A0A580; A0A5B9; P01848; P08079; | 1×NAG; 2×NAG; | 5ksb | |
| Assess | ||||
| D2 protein complex |
Heteromer P01850; P04722; Q2YD82; Q5Y7D3; | 1×NAG; | 4ozg | |
| Assess | ||||
| S2 protein complex |
Heteromer P01850; P04722; Q2YD82; Q5Y7D3; | 1×NAG; 1×CA; | 4ozi | |
| Assess | ||||
| Protein complex |
Heteromer K7N5N2; P01850; P01920; P18573; | 2×NAG; | 4gg6 | |
| Assess | ||||
| Crystal structure of HLA-DQ2.5-CLIP2 |
Heteromer P04233; Q5Y7D3; | 5ksv | ||
| Assess | ||||
| Crystal structure of a human insulin peptide-HLA-DQ8 complex |
Heteromer P01308; P01920; | 1×NAG; | 1jk8 | |
| Assess | ||||
| HLA-DQ2-glia-omega1 |
Heteromer O19712; | 2×NAG; | 6mff | |
| Assess | ||||
| Crystal structure of HLA-DQ2 complexed with deamidated gliadin peptide |
Heteromer P01920; | 2×EDO; | 1s9v | |
| Assess | ||||