tetratricopeptide repeat domain 21B (TTC21B) - coding DNA reference sequence

(used for variant description)

(last modified October 29, 2021)


This file was created to facilitate the description of sequence variants on transcript NM_024753.4 in the TTC21B gene based on a coding DNA reference sequence following the HGVS recommendations.

The sequence was taken from NC_000002.11, covering TTC21B transcript NM_024753.4.


Please note that introns are available by clicking on the exon numbers above the sequence.
 (upstream sequence)
                                                   .                g.5013
                                                gcgaccccgcccc       c.-121

 .         .         .         .         .         .                g.5073
 tcccgctggggcccggggcgctagagcgctccgggaggctaggggagctgaattctgcgt       c.-61

 .         .         .         .         .         .                g.5133
 cttcctttaggctgcggcgagacaatccccagagccccgcggcccggcctcggggcagcc       c.-1

          .         .  | 02      .         .         .         .    g.9153
 ATGGACTCGCAGGAATTGAAG | ACTTTGATTAATTACTATTGTCAAGAGAGATATTTCCAT    c.60
 M  D  S  Q  E  L  K   | T  L  I  N  Y  Y  C  Q  E  R  Y  F  H      p.20

          .         .         .         .         .         .       g.9213
 CATGTATTACTGGTTGCCAGTGAAGGAATTAAGAGGTATGGAAGTGATCCAGTCTTCAGG       c.120
 H  V  L  L  V  A  S  E  G  I  K  R  Y  G  S  D  P  V  F  R         p.40

          .         .         .  | 03      .         .         .    g.9363
 TTTTATCATGCCTATGGCACATTAATGGAAG | GTAAAACTCAAGAAGCTCTTCGAGAATTT    c.180
 F  Y  H  A  Y  G  T  L  M  E  G |   K  T  Q  E  A  L  R  E  F      p.60

          .         .         .         .         .         .       g.9423
 GAGGCTATTAAAAATAAACAAGATGTATCACTTTGTTCTCTACTTGCACTGATATATGCC       c.240
 E  A  I  K  N  K  Q  D  V  S  L  C  S  L  L  A  L  I  Y  A         p.80

          .         .   | 04     .         .         .         .    g.13186
 CATAAAATGAGTCCTAATCCAG | ATAGAGAAGCTATTCTGGAATCAGATGCCAGAGTGAAG    c.300
 H  K  M  S  P  N  P  D |   R  E  A  I  L  E  S  D  A  R  V  K      p.100

          .         .         .         .         .         .       g.13246
 GAACAACGTAAAGGAGCTGGAGAGAAAGCCTTATACCATGCAGGCTTATTTTTATGGCAC       c.360
 E  Q  R  K  G  A  G  E  K  A  L  Y  H  A  G  L  F  L  W  H         p.120

          .         .         .         .         .         .       g.13306
 ATTGGTCGCCATGATAAAGCAAGGGAATATATTGACAGAATGATCAAAATATCAGATGGT       c.420
 I  G  R  H  D  K  A  R  E  Y  I  D  R  M  I  K  I  S  D  G         p.140

           | 05        .         .         .         .         .    g.15548
 AGTAAACAG | GGACACGTTTTGAAAGCATGGCTTGATATTACAAGAGGAAAAGAGCCTTAC    c.480
 S  K  Q   | G  H  V  L  K  A  W  L  D  I  T  R  G  K  E  P  Y      p.160

          .         .         .         .         .         .       g.15608
 ACTAAAAAAGCACTGAAGTATTTTGAAGAGGGACTCCAAGATGGGAATGATACTTTTGCT       c.540
 T  K  K  A  L  K  Y  F  E  E  G  L  Q  D  G  N  D  T  F  A         p.180

          .   | 06     .         .         .         .         .    g.17702
 CTGCTGGGTAAG | GCACAATGCCTTGAGATGCGCCAGAATTATTCAGGTGCCCTGGAGACT    c.600
 L  L  G  K   | A  Q  C  L  E  M  R  Q  N  Y  S  G  A  L  E  T      p.200

          .         .         .         .         .         .       g.17762
 GTGAACCAGATAATCGTGAATTTTCCGAGCTTCCTTCCTGCTTTTGTTAAGAAAATGAAA       c.660
 V  N  Q  I  I  V  N  F  P  S  F  L  P  A  F  V  K  K  M  K         p.220

          .         .         .         .         . | 07       .    g.25791
 TTACAACTAGCCTTGCAGGATTGGGACCAGACAGTTGAGACAGCACAAAG | GTTGCTGCTC    c.720
 L  Q  L  A  L  Q  D  W  D  Q  T  V  E  T  A  Q  R  |  L  L  L      p.240

          .         .         .         .         .         .       g.25851
 CAAGATAGCCAAAATGTGGAAGCACTGAGAATGCAGGCACTCTACTATGTGTGTAGAGAG       c.780
 Q  D  S  Q  N  V  E  A  L  R  M  Q  A  L  Y  Y  V  C  R  E         p.260

          .      | 08  .         .         .         .         .    g.27027
 GGGGATATAGAGAAG | GCTTCCACCAAGCTGGAAAACTTGGGAAATACATTGGATGCCATG    c.840
 G  D  I  E  K   | A  S  T  K  L  E  N  L  G  N  T  L  D  A  M      p.280

          .         .         .         .         .     | 09   .    g.28480
 GAACCACAGAATGCTCAACTTTTCTATAACATTACACTCGCCTTCAGCAGAACT | TGTGGA    c.900
 E  P  Q  N  A  Q  L  F  Y  N  I  T  L  A  F  S  R  T   | C  G      p.300

          .         .         .         .         .         .       g.28540
 CGTAGTCAACTTATTCTTCAAAAAATTCAAACGTTACTTGAGAGAGCTTTTAGTTTAAAC       c.960
 R  S  Q  L  I  L  Q  K  I  Q  T  L  L  E  R  A  F  S  L  N         p.320

          .         .         .         .         .         .       g.28600
 CCTCAGCAATCAGAATTTGCTACAGAACTTGGATACCAAATGATTTTACAAGGAAGAGTT       c.1020
 P  Q  Q  S  E  F  A  T  E  L  G  Y  Q  M  I  L  Q  G  R  V         p.340

          .         .         .         .         .         .       g.28660
 AAAGAGGCACTGAAGTGGTATAAGACCGCCATGACACTTGATGAGACTAGTGTGTCTGCC       c.1080
 K  E  A  L  K  W  Y  K  T  A  M  T  L  D  E  T  S  V  S  A         p.360

         | 10.         .         .         .         .         .    g.29144
 CTAGTTG | GATTTATCCAATGTCAGTTGATAGAAGGGCAATTACAGGATGCAGATCAGCAG    c.1140
 L  V  G |   F  I  Q  C  Q  L  I  E  G  Q  L  Q  D  A  D  Q  Q      p.380

          .         .         .         .      | 11  .         .    g.29518
 CTAGAATTTTTAAATGAAATCCAGCAATCCATTGGAAAATCTGCG | GAATTAATCTATTTA    c.1200
 L  E  F  L  N  E  I  Q  Q  S  I  G  K  S  A   | E  L  I  Y  L      p.400

          .         .         .         .         .         .       g.29578
 CATGCAGTTCTTGCCATGAAGAAAAATAAACGACAAGAAGAAGTTATTAATTTGTTAAAT       c.1260
 H  A  V  L  A  M  K  K  N  K  R  Q  E  E  V  I  N  L  L  N         p.420

          .         .         .         .         .         .       g.29638
 GATGTCCTGGACACTCACTTTTCACAATTAGAAGGTTTGCCTCTTGGCATACAGTATTTT       c.1320
 D  V  L  D  T  H  F  S  Q  L  E  G  L  P  L  G  I  Q  Y  F         p.440

          .         .         .         .         .         .       g.29698
 GAAAAGCTAAATCCTGATTTCTTGTTAGAAATTGTTATGGAGTATCTGAGCTTCTGTCCA       c.1380
 E  K  L  N  P  D  F  L  L  E  I  V  M  E  Y  L  S  F  C  P         p.460

        | 12 .         .         .         .         .         .    g.34214
 ATGCAG | CCTGCAAGTCCTGGGCAACCTCTTTGTCCACTTCTCAGGCGTTGCATCTCAGTC    c.1440
 M  Q   | P  A  S  P  G  Q  P  L  C  P  L  L  R  R  C  I  S  V      p.480

          .         .         .         .         .         .       g.34274
 CTGGAGACTGTAGTAAGAACTGTTCCAGGTCTTCTGCAAACAGTCTTCCTAATAGCAAAA       c.1500
 L  E  T  V  V  R  T  V  P  G  L  L  Q  T  V  F  L  I  A  K         p.500

          .       | 13 .         .         .         .         .    g.39449
 GTGAAATATTTGTCAG | GTGATATTGAAGCAGCTTTCAATAACCTTCAGCACTGCTTAGAA    c.1560
 V  K  Y  L  S  G |   D  I  E  A  A  F  N  N  L  Q  H  C  L  E      p.520

          .         .         .         .         .         .       g.39509
 CACAATCCCTCTTATGCTGATGCTCATCTGCTGCTAGCTCAGGTTTACTTGTCTCAAGAA       c.1620
 H  N  P  S  Y  A  D  A  H  L  L  L  A  Q  V  Y  L  S  Q  E         p.540

          .         .         .         .         .     | 14   .    g.41363
 AAAGTCAAATTGTGTTCTCAGTCTCTTGAACTTTGTCTGAGCTATGATTTTAAG | GTGAGA    c.1680
 K  V  K  L  C  S  Q  S  L  E  L  C  L  S  Y  D  F  K   | V  R      p.560

          .         .         .         .         .         .       g.41423
 GACTATCCTTTATACCATTTGATAAAAGCTCAGTCACAAAAGAAAATGGGAGAAATAGCA       c.1740
 D  Y  P  L  Y  H  L  I  K  A  Q  S  Q  K  K  M  G  E  I  A         p.580

          .         .         .         .         .         .       g.41483
 GACGCAATTAAAACACTGCATATGGCAATGAGTTTACCAGGAATGAAAAGAATTGGAGCT       c.1800
 D  A  I  K  T  L  H  M  A  M  S  L  P  G  M  K  R  I  G  A         p.600

          .         .         .         .         .         .       g.41543
 TCCACAAAATCAAAAGACAGAAAAACTGAAGTTGATACAAGCCATCGTTTATCGATCTTT       c.1860
 S  T  K  S  K  D  R  K  T  E  V  D  T  S  H  R  L  S  I  F         p.620

          .         .         .          | 15        .         .    g.43420
 CTTGAATTGATAGACGTTCACCGCTTAAATGGAGAGCAG | CATGAGGCAACCAAAGTTTTA    c.1920
 L  E  L  I  D  V  H  R  L  N  G  E  Q   | H  E  A  T  K  V  L      p.640

          .         .         .         .         .         .       g.43480
 CAAGATGCCATCCATGAATTTTCTGGAACATCTGAAGAAGTGCGGGTTACCATTGCTAAT       c.1980
 Q  D  A  I  H  E  F  S  G  T  S  E  E  V  R  V  T  I  A  N         p.660

          .         .         .         .         .         .       g.43540
 GCAGACCTTGCTCTAGCCCAAGGAGATATTGAACGGGCTTTAAGCATCCTTCAGAATGTT       c.2040
 A  D  L  A  L  A  Q  G  D  I  E  R  A  L  S  I  L  Q  N  V         p.680

          .         .         .         .         .         .       g.43600
 ACAGCCGAACAGCCTTATTTTATAGAGGCCAGAGAAAAAATGGCAGATATTTATCTGAAG       c.2100
 T  A  E  Q  P  Y  F  I  E  A  R  E  K  M  A  D  I  Y  L  K         p.700

          .         .         .         | 16         .         .    g.45214
 CACAGAAAAGATAAAATGTTATATATCACTTGTTTTAG | AGAAATTGCTGAAAGAATGGCT    c.2160
 H  R  K  D  K  M  L  Y  I  T  C  F  R  |  E  I  A  E  R  M  A      p.720

          .         .         .         .         .  | 17      .    g.46223
 AACCCTCGGTCTTTTCTTCTCCTTGGTGATGCATACATGAATATTCTAGAG | CCTGAAGAA    c.2220
 N  P  R  S  F  L  L  L  G  D  A  Y  M  N  I  L  E   | P  E  E      p.740

          .         .         .         .         .         .       g.46283
 GCCATAGTAGCATATGAGCAAGCATTAAATCAGAACCCGAAAGATGGAACATTGGCAAGC       c.2280
 A  I  V  A  Y  E  Q  A  L  N  Q  N  P  K  D  G  T  L  A  S         p.760

          .         .         .         .   | 18     .         .    g.47391
 AAAATGGGCAAAGCACTTATCAAAACTCATAACTACTCAATG | GCAATCACTTACTATGAA    c.2340
 K  M  G  K  A  L  I  K  T  H  N  Y  S  M   | A  I  T  Y  Y  E      p.780

          .         .         .         .         .         .       g.47451
 GCTGCTCTGAAAACTGGACAAAAGAATTATCTTTGCTATGACCTGGCTGAGCTCTTATTA       c.2400
 A  A  L  K  T  G  Q  K  N  Y  L  C  Y  D  L  A  E  L  L  L         p.800

          .         .         .         .         .         .       g.47511
 AAATTGAAATGGTATGACAAAGCAGAAAAAGTTCTTCAGCATGCTCTGGCTCATGAACCT       c.2460
 K  L  K  W  Y  D  K  A  E  K  V  L  Q  H  A  L  A  H  E  P         p.820

   | 19      .         .         .         .         .         .    g.51113
 G | TAAATGAACTGTCAGCTCTCATGGAGGATGGACGTTGTCAAGTTCTTCTAGCAAAAGTT    c.2520
 V |   N  E  L  S  A  L  M  E  D  G  R  C  Q  V  L  L  A  K  V      p.840

          .         .         .         .         | 20         .    g.56940
 TATAGTAAAATGGAAAAACTTGGTGATGCGATCACTGCATTACAACAG | GCTCGAGAATTA    c.2580
 Y  S  K  M  E  K  L  G  D  A  I  T  A  L  Q  Q   | A  R  E  L      p.860

          .         .         .         .         .         .       g.57000
 CAAGCTCGGGTACTAAAACGTGTTCAGATGGAACAGCCAGATGCAGTTCCTGCACAGAAA       c.2640
 Q  A  R  V  L  K  R  V  Q  M  E  Q  P  D  A  V  P  A  Q  K         p.880

          .         .         .         .         .         .       g.57060
 CATTTAGCAGCTGAAATTTGTGCAGAGATTGCAAAACATTCTGTTGCTCAGCGAGACTAT       c.2700
 H  L  A  A  E  I  C  A  E  I  A  K  H  S  V  A  Q  R  D  Y         p.900

          .         .         .         .         .        | 21.    g.58961
 GAAAAAGCAATTAAGTTTTATAGAGAGGCTCTGGTTCACTGCGAAACAGATAATAAG | ATT    c.2760
 E  K  A  I  K  F  Y  R  E  A  L  V  H  C  E  T  D  N  K   | I      p.920

          .         .         .         .         .         .       g.59021
 ATGTTGGAACTGGCACGATTATACCTGGCACAAGATGACCCTGATTCCTGCCTGCGGCAG       c.2820
 M  L  E  L  A  R  L  Y  L  A  Q  D  D  P  D  S  C  L  R  Q         p.940

          .         .         .         .         | 22         .    g.60083
 TGTGCTCTACTGCTTCAGAGTGACCAGGATAACGAAGCTGCTACCATG | ATGATGGCTGAT    c.2880
 C  A  L  L  L  Q  S  D  Q  D  N  E  A  A  T  M   | M  M  A  D      p.960

          .         .         .         .         .         .       g.60143
 CTCATGTTCAGAAAACAAGACTATGAACAAGCAGTGTTTCATTTACAGCAGCTTTTAGAA       c.2940
 L  M  F  R  K  Q  D  Y  E  Q  A  V  F  H  L  Q  Q  L  L  E         p.980

          . | 23       .         .         .         .         .    g.67900
 CGTAAGCCAG | ATAATTATATGACATTATCTCGTTTGATTGATCTCCTAAGAAGATGTGGA    c.3000
 R  K  P  D |   N  Y  M  T  L  S  R  L  I  D  L  L  R  R  C  G      p.1000

          .         .         .         .         .         .       g.67960
 AAACTCGAGGATGTCCCAAGATTTTTCTCAATGGCTGAGAAACGTAACTCCAGAGCAAAA       c.3060
 K  L  E  D  V  P  R  F  F  S  M  A  E  K  R  N  S  R  A  K         p.1020

          .         .         .         .  | 24      .         .    g.68217
 TTGGAACCAGGATTTCAGTATTGTAAAGGACTGTATCTTTG | GTACACTGGAGAACCAAAT    c.3120
 L  E  P  G  F  Q  Y  C  K  G  L  Y  L  W  |  Y  T  G  E  P  N      p.1040

          .         .         .         .         .         .       g.68277
 GATGCCCTTCGACATTTTAATAAAGCTCGGAAAGATCGTGACTGGGGCCAAAATGCCCTT       c.3180
 D  A  L  R  H  F  N  K  A  R  K  D  R  D  W  G  Q  N  A  L         p.1060

          .         .         .         .         .         .       g.68337
 TATAATATGATAGAGATCTGTTTGAATCCAGATAATGAAACTGTTGGAGGTGAAGTATTT       c.3240
 Y  N  M  I  E  I  C  L  N  P  D  N  E  T  V  G  G  E  V  F         p.1080

          .         .    | 25    .         .         .         .    g.70401
 GAAAACCTGGATGGAGACCTGGG | TAATTCAACTGAGAAGCAAGAATCTGTGCAACTGGCA    c.3300
 E  N  L  D  G  D  L  G  |  N  S  T  E  K  Q  E  S  V  Q  L  A      p.1100

          .         .         .         .         .         .       g.70461
 GTAAGAACAGCAGAAAAACTTCTTAAGGAACTAAAACCTCAGACTGTTCAGGGTCACGTA       c.3360
 V  R  T  A  E  K  L  L  K  E  L  K  P  Q  T  V  Q  G  H  V         p.1120

          .         .         .         .         .         .       g.70521
 CAGCTTCGCATAATGGAAAACTATTGCTTAATGGCTACCAAACAGAAATCTAATGTTGAA       c.3420
 Q  L  R  I  M  E  N  Y  C  L  M  A  T  K  Q  K  S  N  V  E         p.1140

          .         .         .          | 26        .         .    g.74841
 CAAGCATTAAATACCTTCACTGAAATAGCAGCATCTGAG | AAGGAGCATATCCCAGCGCTC    c.3480
 Q  A  L  N  T  F  T  E  I  A  A  S  E   | K  E  H  I  P  A  L      p.1160

          .         .         .         .         .         .       g.74901
 TTGGGAATGGCAACGGCTTATATGATCTTGAAACAGACTCCACGAGCCAGAAACCAGCTG       c.3540
 L  G  M  A  T  A  Y  M  I  L  K  Q  T  P  R  A  R  N  Q  L         p.1180

          .         .         .         .         .         .       g.74961
 AAGCGTATTGCGAAAATGAATTGGAATGCTATTGATGCTGAAGAGTTTGAGAAGAGTTGG       c.3600
 K  R  I  A  K  M  N  W  N  A  I  D  A  E  E  F  E  K  S  W         p.1200

          .         .         .         .         .         .       g.75021
 CTGCTACTTGCTGATATTTACATTCAATCAGCAAAATATGACATGGCAGAAGACCTGTTA       c.3660
 L  L  L  A  D  I  Y  I  Q  S  A  K  Y  D  M  A  E  D  L  L         p.1220

          .         .     | 27   .         .         .         .    g.78075
 AAACGGTGCCTGCGTCATAATAGA | TCTTGCTGCAAAGCTTATGAATATATGGGATACATT    c.3720
 K  R  C  L  R  H  N  R   | S  C  C  K  A  Y  E  Y  M  G  Y  I      p.1240

          .         .         .         .         .         .       g.78135
 ATGGAAAAAGAGCAAGCATATACAGATGCTGCCTTGAACTATGAGATGGCATGGAAATAT       c.3780
 M  E  K  E  Q  A  Y  T  D  A  A  L  N  Y  E  M  A  W  K  Y         p.1260

          .         .      | 28  .         .         .         .    g.82641
 AGCAATCGGACAAATCCGGCAGTAG | GATACAAACTGGCATTTAATTACTTAAAAGCAAAA    c.3840
 S  N  R  T  N  P  A  V  G |   Y  K  L  A  F  N  Y  L  K  A  K      p.1280

          .         .         .    | 29    .         .         .    g.84033
 AGATATGTGGATTCAATTGACATATGTCACCAG | GTTCTTGAAGCACATCCAACTTATCCA    c.3900
 R  Y  V  D  S  I  D  I  C  H  Q   | V  L  E  A  H  P  T  Y  P      p.1300

          .         .         .         .         .                 g.84084
 AAAATCAGAAAGGATATACTTGATAAGGCCCGTGCGTCTTTAAGACCTTGA                c.3951
 K  I  R  K  D  I  L  D  K  A  R  A  S  L  R  P  X                  p.1316

          .         .         .         .         .         .       g.84144
 aaataattttaacttaggtgttggtttaacaggaaatgaaagaaatctaactttcagttc       c.*60

          .         .         .         .         .         .       g.84204
 ttcctgttcaaaacaggtttgagctcagtgctttgttattagaagtatacccttttttct       c.*120

          .         .         .         .         .         .       g.84264
 ccagcagaggttgctgctgtacatcaagagaagtactatgtgaaattggtgtttcctaat       c.*180

          .         .         .         .         .         .       g.84324
 ggagttgaatgagagctggtctatttgactctgttttgattgggtacagatttggtgact       c.*240

          .         .         .         .         .         .       g.84384
 ctgtggtaaagactataattatttctataaagaatattttgttaaaatctaggtaattaa       c.*300

          .         .         .         .         .         .       g.84444
 ataccctgtatcttttctaaggaatattatttcaggaaatatatttaaaatgcattgttc       c.*360

          .         .         .         .         .         .       g.84504
 tcttttaaagtgtttttgttatattcttttatttatttatttatttttaaagacagagcc       c.*420

          .         .         .         .         .         .       g.84564
 ttgatctgccgcccaggctggagtgcagtggcacgatcttggctcactgcaacctccgcc       c.*480

          .         .         .         .         .         .       g.84624
 tcctgggtttacgcgattctcctgcttcagcctcccgagtagctgggactaaaggcatgt       c.*540

          .         .         .         .         .         .       g.84684
 gccatcacacccggctaattttttgtatttttagtagagatgggatttcaccgtgttagc       c.*600

          .         .         .         .         .         .       g.84744
 caggaggggcttgatctcttgaccttgtgatccacctgcctcggcctcccaaagtgctgg       c.*660

          .         .         .         .         .         .       g.84804
 gattacaggcatgagccaccgcacccagcctgtttttgttgtattctgtgttgtttcaaa       c.*720

          .         .         .         .         .         .       g.84864
 aattggaataaatctccctgtaaataactcatgaaaaagacaatatatatattttaaata       c.*780

          .         .         .         .         .         .       g.84924
 tatattttaataaaggttttataaatagatgatttatattcctcttggaactcaaaagat       c.*840

          .         .         .         .         .         .       g.84984
 gtggtaagttttgcaaatcagggtaagctccccctgcattctgtaatgttaatgggtggt       c.*900

          .         .         .         .         .         .       g.85044
 ggtatagtacagaaaatgtaactttcattgaaaaatcttttttagaaaagggtagagtgt       c.*960

          .         .         .         .         .         .       g.85104
 gtgtttccctttcctttcttgagctcattcttcctgctttcaaggccattgtggtcttaa       c.*1020

          .         .         .         .         .         .       g.85164
 gaaataatcaggtcctgaaacctcaatttaaataggtcccttattagggatatttaacct       c.*1080

          .         .         .         .         .         .       g.85224
 tagcctagaagacttggtctgcaggtataatttcagacactgtaacatttgatggtaaag       c.*1140

          .         .         .         .         .         .       g.85284
 ggtgaccaaatacttttggtcagcagggagtcacaaagcacaccatgtgaaggcaacggt       c.*1200

          .         .         .         .         .         .       g.85344
 ttacccagctctgtttaacagcaccctggcatagaagctttcactctcttacactaaatt       c.*1260

          .         .         .         .         .         .       g.85404
 taacctaatctaaacttaatccttagcattatttttaatttctcatctacatctttttca       c.*1320

          .         .         .         .         .         .       g.85464
 attttccttaaaattgtagtaaacacagtcctcaattttatttgcatttacaataaacag       c.*1380

          .                                                         g.85477
 tatttataagtca                                                      c.*1393

 (downstream sequence)
Legend:
Nucleotide numbering (following the rules of the HGVS for a 'Coding DNA Reference Sequence') is indicated at the right of the sequence, counting the A of the ATG translation initiating Methionine as 1. Every 10th nucleotide is indicated by a "." above the sequence. The Tetratricopeptide repeat domain 21B protein sequence is shown below the coding DNA sequence, with numbering indicated at the right starting with 1 for the translation initiating Methionine. Every 10th amino acid is shown in bold. The position of introns is indicated by a vertical line, splitting the two exons. The start of the first exon (transcription initiation site) is indicated by a '\', the end of the last exon (poly-A addition site) by a '/'. The exon number is indicated above the first nucleotide(s) of the exon. To aid the description of frame shift variants, all stop codons in the +1 frame are shown in bold while all stop codons in the +2 frame are underlined.

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