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Table 1 Summary of the mutations reported in the TCN2 gene

From: Identification of transcobalamin deficiency with two novel mutations in the TCN2 gene in a Chinese girl with abnormal immunity: a case report

Exon

gDNA

Effect

Reference

2

c.67A > G

p.Ile23 Val

Afman et al 2002 [9]

8

c.1196G > A

p.Arg399Gln

Afman et al 2002

5

c.703dupA

p.Thr235Asn fs*69

Bartakke et al 2015 [10]

8

c.1127T > C

p.Leu376Ser

Grarup et al 2013 [11]

4

c.580 + 624A > T

p.?

Häberle et al 2009 [12]

7

c.940 + 303_c.1106 + 746delinsCTGG

p.?

Häberle et al 2009

8

c.1194C > T

p.Arg399Ter

Khera et al 2019 [13]

2

c.172delC

p.Leu58Tyrfs*28

Li et al 1994 [4]

3

c.387delA

p.Gln130Serfs*77

Li et al 1994

6

c.927-930del

p.Cys309Trp fs*50

Li et al 1994

8

c.1110T > G

p.Tyr370Term

Li et al 1994

1–9

large deletion involving all but 3' end of gene

p.?

Li et al 1994

3

c.427 + 2 T > G

p.?

Namour et al 2003 [7]

1

c.64 + 4A > T

p.?

Nashabat et al 2017 [14]

7

c.1106 + 1G > A

p.Met315fs

Nissen et al 2010 [15]

8

deletion ex. 8

p.?

Nissen et al 2010

8

c.1195C > T

p.Arg399Term

Prasad et al 2008

5

c.679C > T

p.Arg227Term

Pupavac et al 2016 [16]

1

c.62G > A

p.Cys21Tyr

Qian et al 2002 [17]

1

c.31C > G

p.Leu11Val

Qian et al 2002

2

c.145C > T

p.His49Tyr

Qian et al 2002

2

c.254T > A

p.Leu85Gln

Qian et al 2002

2

c.79G > C

p.Asp27Asn

Qian et al 2002

2

c.257G > A

p.Gly86Glu

Qian et al 2002

3

c.330dupC

p.Ala111Argfs*7

Ratschmann et al 2009 [6]

4

c.580 + 1G > C

p.?

Schiff et al 2010 [18]

4

c.501_503del

p.Leu167del

Schiff et al 2010

8

c.1139dupA

p.Tyr380Ter

Schiff et al 2010

8

c.1117_1118del

p.Gln373Glyfs*38

Schiff et al 2010

9

c.1236_1237del

p.Tyr412fs

Schiff et al 2010

3

c.423del

p.Ile142Leufs*65

Trakadis et al 2014 [19]

3

c.348_349del

p.Cys116fs

Trakadis et al 2014

4

c.472G > T

p.Gly158Cys

Trakadis et al 2014

4

c.497_498del

p.Leu166Profs*7

Trakadis et al 2014

5

c.745del

p.Ala249Hisfs*6

Trakadis et al 2014

6

c.937C > T

p.Arg313Ter

Trakadis et al 2014

7

c.940 + 283_940 + 286del

p.?

Trakadis et al 2014

7

c.940 + 303_1106 + 764delinsCTGG

p.?

Trakadis et al 2014

7

c.1013_1014 delinsTAA

p.Ser338Ilefs*27

Trakadis et al 2014

8

c.1106 + 1516_1222 + 1231del

p.?

Trakadis et al 2014

1

c.106C > T

p.Gln36Term

Ünal et al 2015 [20]

8

c.1107 − 347_1222 + 981delins 364 bp

p.?

Ünal et al 2015

7

c.1017-1031delinsGTAACAGAGATGGTT

p.Leu340Ter

Novel this paper

7

c. 1033C > T

p.Gln345Ter

Novel this paper