Table 2 The verification of 47 genes in the Han population.

From: Whole-exome sequencing of individuals from an isolated population under extreme conditions implicates rare risk variants of schizophrenia

Gene

Consequence

rs

VID

hgvs

Function

APBA3

missense_variant

rs146584090

19:3751091:T/C

NM_004886.3:c.1661 A > G(p.His554Arg)

It is an adapter protein that interacts with the Alzheimer’s disease amyloid precursor protein. This gene product is believed to be involved in signal transduction processes. This gene is a candidate gene for Alzheimer’s disease.

ARHGAP39

missense_variant

.

8:145755853:C/T

NM_025251.1:c.3298 G > A(p.Val1100Met)

Predicted to enable GTPase activator activity. Involved in postsynapse organization. Is active in glutamatergic synapse.

ARHGEF11

missense_variant

.

1:156906736:G/C

NM_014784.3:c.4382 C > G(p.Thr1461Ser)

The encoded protein may form a complex with G proteins and stimulate Rho-dependent signals. A similar protein in rat interacts with glutamate transporter EAAT4 and modulates its glutamate transport activity.

BAI2

missense_variant

rs200836738

1:32222059:G/A

NM_001703.2:c.379 C > T(p.Arg127Trp)

The encoded protein is a brain-specific inhibitor of angiogenesis. The mature peptide may be further cleaved into additional products (PMID:20367554). Alternative splicing results in multiple transcript variants.

C14orf177

missense_variant

.

14:99183438:T/C

NM_182560.2:c.205 T > C(p.Cys69Arg)

NA

CDH10

missense_variant

.

5:24487935:G/C

NM_006727.3:c.2204 C > G(p.Thr735Ser)

This gene encodes a type II classical cadherin of the cadherin superfamily. This particular cadherin is predominantly expressed in brain and is putatively involved in synaptic adhesions, axon outgrowth and guidance.

CLTCL1

inframe_deletion

rs782037820

22:19175545:TTG/-

NM_007098.3:c.4380_4382delCAA(p.Asn1460del)

This gene is a member of the clathrin heavy chain family and encodes a major protein of the polyhedral coat of coated pits and vesicles.

CPLX4

missense_variant

.

18:56985594:G/A

NM_181654.3:c.101 C > T(p.Pro34Leu)

This gene likely encodes a member of the complexin family. The encoded protein may be involved in synaptic vesicle exocytosis.

DNAH5

missense_variant

rs200983202

5:13759047:C/G

NM_001369.2:c.10327 G > C(p.Asp3443His)

This gene encodes a dynein protein.This protein is an axonemal heavy chain dynein. It functions as a force-generating protein with ATPase activity, whereby the release of ADP is thought to produce the force-producing power stroke.

DPPA4

missense_variant

.

3:109047930:T/C

NM_018189.3:c.685 A > G(p.Arg229Gly)

This gene encodes a nuclear factor that is involved in the maintenance of pluripotency in stem cells and essential for embryogenesis.

ERC1

missense_variant

.

12:1291147:A/T

NM_178039.2:c.1848A>T(p.Gln616His)

The protein encoded by this gene is a member of a family of RIM-binding proteins. RIMs are active zone proteins that regulate neurotransmitter release.

FUBP1

missense_variant

.

1:78430904:C/A

NM_003902.3:c.485 G > T(p.Arg162Leu)

The protein encoded by this gene is a single stranded DNA-binding protein that binds to multiple DNA elements. Aberrant expression of this gene has been found in malignant tissues, and this gene is important to neural system and lung development.

GEMIN7,ZNF296

missense_variant

.

19:45579582:G/A

NM_145288.1:c.50 C > T(p.Pro17Leu)

The protein encoded by this gene is a component of the core SMN complex, which is required for pre-mRNA splicing in the nucleus.

IL21R-AS1,IL21R

missense_variant

.

16:27460434:G/A

NM_181079.4:c.1513 G > A(p.Ala505Thr)

The protein encoded by this gene is a cytokine receptor for interleukin 21. This receptor transduces the growth promoting signal of IL21, and is important for the proliferation and differentiation of T cells, B cells, and natural killer (NK) cells.

IL6R

missense_variant

rs780683821

1:154437680:G/A

NM_000565.3:c.1231 G > A(p.Gly411Arg)

This gene encodes a subunit of the interleukin 6 (IL6) receptor complex. Interleukin 6 is a potent pleiotropic cytokine that regulates cell growth and differentiation and plays an important role in the immune response.

KCNAB1

missense_variant

.

3:155861100:C/T

NM_003471.3:c.133 C > T(p.Pro45Ser)

This gene encodes a member of the potassium channel, voltage-gated, shaker-related subfamily. Their diverse functions include regulating neurotransmitter release, heart rate, insulin secretion, neuronal excitability, epithelial electrolyte transport, smooth muscle contraction, and cell volume.

KIF17

missense_variant

rs200844482

1:21009232:C/T

NM_020816.2:c.2377 G > A(p.Gly793Arg)

Predicted to enable microtubule binding activity and plus-end-directed microtubule motor activity. Predicted to be involved in anterograde dendritic transport of neurotransmitter receptor complex and cell projection organization. Predicted to act upstream of or within microtubule-based process; protein-containing complex localization; and vesicle-mediated transport.

KNDC1

missense_variant

rs985546165

10:135009249:G/A

NM_152643.6:c.1658 G > A(p.Arg553His)

The protein encoded by this gene is a Ras guanine nucleotide exchange factor that appears to negatively regulate dendritic growth in the brain.

MAP2

missense_variant

.

2:210574665:A/G

NM_002374.3:c.4760 A > G(p.Lys1587Arg)

The proteins of this family are thought to be involved in microtubule assembly, which is an essential step in neurogenesis. The products of similar genes in rat and mouse are neuron-specific cytoskeletal proteins that are enriched in dentrites, implicating a role in determining and stabilizing dentritic shape during neuron development.

NPTX2

missense_variant

rs377548219

7:98256538:C/T

NM_002523.2:c.950 C > T(p.Thr317Met)

This gene encodes a member of the family of neuronal petraxins, synaptic proteins that are related to C-reactive protein. This protein is involved in excitatory synapse formation.

PGAM2

missense_variant

rs770622502

7:44104852:C/T

NM_000290.3:c.277 G > A(p.Gly93Arg)

This gene encodes muscle-specific Phosphoglycerate mutase subunit.

PLA2G4B,JMJD7-PLA2G4B

missense_variant

.

15:42138538:C/G

NM_005090.3:c.2431 C > G(p.His811Asp)

This gene encodes a member of the cytosolic phospholipase A2 protein family.

PTCH1

missense_variant

.

9:98209454:G/A

NM_000264.3:c.4084 C > T(p.Pro1362Ser)

This gene encodes a member of the patched family of proteins and a component of the hedgehog signaling pathway. Hedgehog signaling is important in embryonic development and tumorigenesis

SCN11A

missense_variant

.

3:38921541:G/A

NM_014139.2:c.3293 C > T(p.Thr1098Ile)

This gene encodes one member of the sodium channel alpha subunit gene family, and is highly expressed in nociceptive neurons of dorsal root ganglia and trigeminal ganglia.

SH3TC2

missense_variant

rs760656119

5:148392170:C/T

NM_024577.3:c.3181 G > A(p.Glu1061Lys)

The gene product has been proposed to be an adapter or docking molecule. Mutations in this gene result in autosomal recessive Charcot-Marie-Tooth disease type 4 C, a childhood-onset neurodegenerative disease characterized by demyelination of motor and sensory neurons.

SHANK1

missense_variant

rs577804387

19:51172180:G/A

NM_016148.2:c.3037 C > T(p.Pro1013Ser)

This gene encodes a member of the SHANK (SH3 domain and ankyrin repeat containing) family of proteins. Members of this family act as scaffold proteins that are required for the development and function of neuronal synapses. Deletions in this gene may be associated with autism spectrum disorder in males.

SLC39A6

missense_variant

.

18:33702217:T/C

NM_012319.3:c.1157 A > G(p.His386Arg)

SLC39A6 belongs to a subfamily of proteins that show structural characteristics of zinc transporters

SORL1

missense_variant

.

11:121420769:G/A

NM_003105.5:c.2152 G > A(p.Val718Met)

The encoded preproprotein is proteolytically processed to generate the mature receptor, which likely plays roles in endocytosis and sorting.

SSH1

missense_variant

.

12:109182656:T/A

NM_018984.3:c.2258 A > T(p.Lys753Met)

The protein encoded by this gene belongs to the slingshot homolog (SSH) family of phosphatases, which regulate actin filament dynamics.

SYNJ1

missense_variant

.

21:34053882:C/A

NM_203446.2:c.1394 G > T(p.Arg465Leu)

This gene encodes a phosphoinositide phosphatase that regulates levels of membrane phosphatidylinositol-4,5-bisphosphate. As such, expression of this enzyme may affect synaptic transmission and membrane trafficking.

SYT8

splice_acceptor_variant

.

11:1857115:G/C

NM_138567.3:c.301–1 G > C(.)

This gene encodes a member of the synaptotagmin protein family. Synaptotagmins are membrane proteins that are important in neurotransmission and hormone secretion, both of which involve regulated exocytosis.

TAOK2

missense_variant

rs768000716

16:29998819:C/T

NM_001252043.1:c.2887 C > T(p.Arg963Trp)

This gene encodes a serine/threonine protein kinase that is involved in many different processes, including, cell signaling, microtubule organization and stability, and apoptosis.

TENM1

missense_variant

.

X:123695656:C/T

NM_014253.3:c.2299 G > A(p.Gly767Arg)

It is expressed in the neurons and may function as a cellular signal transducer.

TMEM132A

missense_variant

rs777345475

11:60696363:G/A

NM_017870.3:c.797 G > A(p.Arg266Gln)

This gene encodes a protein that is highly similar to the rat Grp78-binding protein (GBP).

TSEN34

missense_variant

.

19:54696153:G/A

NM_024075.3:c.674 G > A(p.Arg225Lys)

A mutation in this gene results in the neurological disorder pontocerebellar hypoplasia type 2.

TUFM

missense_variant

.

16:28856781:C/T

NM_003321.4:c.268 G > A(p.Ala90Thr)

This gene encodes a protein which participates in protein translation in mitochondria. Mutations in this gene have been associated with combined oxidative phosphorylation deficiency resulting in lactic acidosis and fatal encephalopathy.

YLPM1

missense_variant

.

14:75276681:C/T

NM_019589.2:c.5008 C > T(p.Pro1670Ser)

Enables RNA binding activity. Predicted to be involved in regulation of telomere maintenance. Predicted to act upstream of or within negative regulation of transcription by RNA polymerase II.

TRIO

missense_variant

.

5:14488193:T/C

NM_007118.2:c.7456 T > C(p.Trp2486Arg)

This gene encodes a large protein that functions as a GDP to GTP exchange factor. This protein promotes the reorganization of the actin cytoskeleton, thereby playing a role in cell migration and growth.

RAB41

missense_variant

.

X:69502652:G/C

NM_001032726.2:c.181 G > C(p.Ala61Pro)

This gene encodes a small GTP-binding protein that belongs to the largest family within the Ras superfamily. These proteins function as regulators of membrane trafficking.

GPRASP2

missense_variant

rs770886846

X:101970390:C/T

NM_138437.5:c.593 C > T(p.Pro198Leu)

The encoded protein has been shown to be capable of interacting with several GPCRs, including the M1 muscarinic acetylcholine receptor and the calcitonin receptor.

INADL

inframe_deletion

.

1:62240913:TAA/-

NM_176877.2:c.757_759delAAT(p.Asn253del)

This gene encodes a protein with multiple PDZ domains. PDZ domains mediate protein-protein interactions, and proteins with multiple PDZ domains often organize multimeric complexes at the plasma membrane.

FOXP1

missense_variant

.

3:71102805:C/A

NM_032682.5:c.402 G > T(p.Gln134His)

This gene belongs to subfamily P of the forkhead box (FOX) transcription factor family. Forkhead box transcription factors play important roles in the regulation of tissue- and cell type-specific gene transcription during both development and adulthood.

NLRC5

missense_variant

rs1053181583

16:57060387:C/T

NM_032206.4:c.1532 C > T(p.Ala511Val)

This gene plays a role in cytokine response and antiviral immunity through its inhibition of NF-kappa-B activation and negative regulation of type I interferon signaling pathways.

LPCAT2

stop_gained

rs144432562

16:55575825:C/T

XM_005256006.1:c.928 C > T(p.Arg310Ter)

The encoded protein may function in membrane biogenesis and production of platelet-activating factor in inflammatory cells.

ABCA10

missense_variant

.

17:67211999:A/G

NM_080282.3:c.815 T > C(p.Leu272Ser)

NA

SUCLG2

missense_variant

.

3:67459404:G/C

XM_005264773.1:c.1117 C > G(p.His373Asp)

This gene encodes a GTP-specific beta subunit of succinyl-CoA synthetase. Succinyl-CoA synthetase catalyzes the reversible reaction involving the formation of succinyl-CoA and succinate.

PIK3C2A

missense_variant

.

11:17113578:C/T

NM_002645.2:c.4607 G > A(p.Arg1536His)

The protein encoded by this gene belongs to the phosphoinositide 3-kinase (PI3K) family. PI3-kinases play roles in signaling pathways involved in cell proliferation, oncogenic transformation, cell survival, cell migration, and intracellular protein trafficking.